JP2013208227A - Game device, control method of game device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce disadvantage to a player resulting from a distance between an operation object and a virtual camera.SOLUTION: A display control means (96) of a game device (10) synthesizes a virtual space image indicating a state that a virtual space (60) in which an operation object (64) of a player is arranged is viewed from a virtual view point (76) and an actual space image, and makes a display means (22) display them. A virtual view point control means (98) controls a position of the virtual view point (76) and a visual line direction on the basis of an detection object (50) included in the actual space image. An operation object control means (100) moves the operation object (64) on the basis of a movement indication operation of the player. A game parameter change means (102) changes a game parameter so that the player may become advantageous or disadvantageous in a game on the basis of a present distance between the operation object (64) and the virtual view point (76).

Description

  The present invention relates to a game device, a game device control method, and a program.

  Conventionally, a game using AR (Augmented Reality) is displayed by displaying a screen that combines an image of a real space and an image showing a virtual space viewed from a virtual camera. A game device that executes is known (Patent Document 1).

JP 2010-170316 A

  However, in a game using augmented reality, the virtual camera is not automatically controlled so that the operation target of the player is displayed at a predetermined size at a predetermined position on the screen. The virtual camera is controlled in accordance with the change of. For this reason, depending on the operation of the player, for example, the distance between the virtual camera and the operation target may be increased, and the operation target displayed on the screen may be extremely small. If the player loses sight of the operation target, it becomes difficult to play the game, which may be disadvantageous.

  The present invention has been made in view of the above problems, and an object of the present invention is, for example, a game device and a game capable of reducing the disadvantage of the player due to the distance between the operation target and the virtual camera. An object is to provide an apparatus control method and program.

  In order to solve the above problems, a game apparatus (10) according to the present invention is a game apparatus (10) that executes a game in which a player becomes advantageous or disadvantageous when a given game parameter changes, and the game parameter (10) The game parameter acquisition unit (14) for acquiring the game parameter from the unit (90) for storing the image, and the shooting range changes based on the operation of the player, and the real space where the detection target (50) is arranged is shot. A state (94) of acquiring a real space image indicating the real space from the photographing means (44) and a virtual space (60) where the operation target (64) of the player is arranged as seen from a virtual viewpoint (76) Display control means (96) for synthesizing the virtual space image indicating the above and the real space image and displaying on the display means (22), and included in the real space image Based on the detection target (50), the virtual viewpoint control means (98) for controlling the position and line-of-sight direction of the virtual viewpoint (76), and the operation target (64) is moved based on the movement instruction operation of the player. Based on the current distance between the operation target control means (100) to be operated and the operation target (64) and the virtual viewpoint (76), the game parameters are set so that the player is advantageous or disadvantageous in the game. It includes a game parameter changing means (102) for changing, and a game process executing means (92) for executing a game process based on the changed game parameter.

  In addition, the control method of the game apparatus (10) according to the present invention is a control method of the game apparatus (10) that executes a game in which a player becomes advantageous or disadvantageous when a given game parameter changes, The game parameter acquisition step (14) for acquiring the game parameter from the means (90) for storing the image, and the shooting range is changed based on the operation of the player, and the real space where the detection target (50) is arranged is shot. A step (94) of acquiring a real space image indicating the real space from the photographing means (44), and a state in which the virtual space (60) in which the operation target (64) of the player is arranged is viewed from the virtual viewpoint (76). A display control step (96) for combining the virtual space image indicating the real space image and the real space image to display on the display means (22), and the real space A virtual viewpoint control step (98) for controlling the position and line-of-sight direction of the virtual viewpoint (76) based on the detection target (50) included in the image, and the operation target ( 64) based on the current distance between the operation target control step (100) to move the operation target (64) and the virtual viewpoint (76), so that the player is advantageous or disadvantageous in the game. It includes a game parameter changing step (102) for changing the game parameter, and a game process executing step (92) for executing a game process based on the changed game parameter.

  Further, the program according to the present invention is a program for causing a computer to execute a game that is advantageous or unfavorable to a player when a given game parameter changes, from means (90) for storing the game parameter. From the game parameter acquisition means (14) for acquiring the game parameter, from the shooting means (44) for shooting the real space in which the shooting range is changed and the detection target (50) is arranged based on the operation of the player, the real space A virtual space image showing a virtual space (60) in which the operation target (64) of the player is arranged viewed from a virtual viewpoint (76), and a real space image indicating the real space image indicating the virtual space (60) Display control means (96) for synthesizing and displaying the image on the display means (22), and the detection pair included in the real space image. (50), a virtual viewpoint control means (98) for controlling the position and line-of-sight direction of the virtual viewpoint (76), and an operation object control for moving the operation object (64) based on the movement instruction operation of the player. Means (100), a game parameter change for changing the game parameter based on a current distance between the operation object (64) and the virtual viewpoint (76) so that the player is advantageous or disadvantageous in the game Means (102) cause the computer to function as game processing execution means (92) for executing game processing based on the changed game parameter.

  An information storage medium according to the present invention is a computer-readable information storage medium storing the above program.

  According to the present invention, it is possible to reduce the disadvantage of the player due to the distance between the operation target and the virtual camera.

  Moreover, according to one aspect of the present invention, the game device (10) has moved the operation target (64) when the distance between the operation target (64) and the virtual viewpoint (76) changes. When the distance between the first movement determination means (104) for determining whether or not the distance has changed and the operation target (64) and the virtual viewpoint (76) has changed, the virtual viewpoint (76) And a second movement determining means (106) for determining whether or not the distance has changed due to movement, wherein the game parameter changing means (102) includes the operation object (64) and the operation target (64). When the distance from the virtual viewpoint (76) changes, the current distance between the operation target (64) and the virtual viewpoint (76), the first movement determination means (104), and the second movement determination means ( 106) at least And one of the determination result, based on said changing the game parameter, and wherein the.

  Further, according to one aspect of the present invention, the game device (10) includes the detection target (50) and the photographing unit (44) based on the detection target (50) included in the real space image. Further includes positional relationship information acquisition means (108) for acquiring information related to the current positional relationship, wherein the game parameter changing means (102) is a current distance between the operation target (64) and the virtual viewpoint (76). And changing the game parameter based on the current positional relationship between the detection object (50) and the photographing means (44).

  According to another aspect of the present invention, the positional relationship information acquisition unit (108) is configured to detect the detection target (50) and the imaging unit (108) based on the detection target (50) included in the real space image. 44), the game parameter changing means (102) acquires the current distance between the operation target (64) and the virtual viewpoint (76), the detection target (50), and The game parameter is changed based on the current distance from the photographing means (44).

  Further, according to one aspect of the present invention, the positional relationship information acquisition unit (108) is configured to detect the detection target (50) and the photographing unit (108) based on the detection target (50) included in the real space image. 44), the game parameter changing means (102) obtains information on the angle between the direction connecting the detection target (50) and the reference direction of the detection target (50), and the game parameter changing means (102) The game parameter is changed based on the current distance and the current angle.

  Further, according to one aspect of the present invention, the game apparatus (10) determines whether or not the operation target (64) is displayed in an end area of the screen of the display means (22). (110), and the game parameter changing means (102) changes the game parameter when the operation target (64) is displayed in the end region, and the operation target (64) The game parameter is changed so that the player is more advantageous than the case where the game parameter is changed in a state where the game parameter is displayed outside the edge region.

  Further, according to one aspect of the present invention, the game apparatus (10) includes means (14) for obtaining game situation data from means (90) for storing game situation data indicating the situation of the game being executed. And means (112) for determining whether the current situation of the game is a given situation, wherein the game parameter changing means (102) is configured so that the current situation of the game is the given situation. When the game parameter is changed in the state of the game, the game is advantageous to the player over the case where the game parameter is changed in a state where the current situation of the game is not the given situation. The parameter is changed.

  Further, according to one aspect of the present invention, the game parameter changing means (102) is based on an association between a distance between the operation target and the virtual viewpoint and a change amount or a changed value of the game parameter. Means for acquiring the change amount or the changed value associated with the current distance between the operation target and the virtual viewpoint, and based on the acquired change amount or the changed value, The game parameter is changed.

  Further, according to one aspect of the present invention, the game parameter is a game parameter relating to the ability or state of the operation target, and the game parameter changing means (102) is configured to provide a current relationship between the operation target and the virtual viewpoint. The ability or state of the operation target is changed by changing the game parameter based on a distance.

  Further, according to one aspect of the present invention, the game is a game in which the operation target battles an enemy, the game parameter is a game parameter related to the enemy's ability or state, and the game parameter changing means (102 ) Is characterized in that the enemy's ability or state is changed by changing the game parameter based on the current distance between the operation target and the virtual viewpoint.

  Further, according to one aspect of the present invention, the game parameter is a game parameter related to the difficulty level of the game, and the game parameter changing means (102) sets the current distance between the operation target and the virtual viewpoint. Based on the above, the game difficulty level is changed by changing the game parameter.

  In addition, in the above, although the code | symbol described in drawing is described in parenthesis in order to make an understanding of this invention easy, by this, the game device etc. which concern on this invention are not limited to the aspect of illustration.

It is a figure which shows the hardware constitutions of the game device which concerns on this embodiment. It is a figure which shows a mode that a player plays the game using an augmented reality. It is a figure which shows an example of virtual space. It is a figure which shows an example of the game screen displayed on a display part. It is a functional block diagram which shows the function implement | achieved with a game device. It is a figure for demonstrating the control method of the virtual camera by a virtual viewpoint control part. It is a figure which shows correlation with the distance of an operation target and a virtual viewpoint, and the change amount of a game parameter, or the value after a change. It is a flowchart which shows the process relevant to this invention among the processes which a game device performs. It is a flowchart which shows the process relevant to this invention among the processes which a game device performs. It is a functional block diagram of modification (1). It is a figure which shows the change method of the energy parameter in a modification (1-1). It is a figure which shows the positional relationship of a marker and a camera. It is a figure which shows the change method of the energy parameter in a modification (1-2). It is a figure which shows the detectable range of a marker. It is a figure which shows the edge part area | region of a game screen. It is a figure which shows the change method of the energy parameter in a modification (1-3). It is a figure which shows the change method of the energy parameter in a modification (1-4). It is explanatory drawing for demonstrating a difficulty parameter. It is a figure which shows the change method of the game parameter in a modification (2-3).

[1. Embodiment]
Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The game device according to the present invention is realized by, for example, a home game machine (stationary game machine), a portable game machine, a mobile phone (smart phone), a portable information terminal, a personal computer, or the like. Here, a case where the game device according to the embodiment is realized by a portable game machine will be described.

[2. Hardware configuration of game device]
FIG. 1 is a diagram illustrating a hardware configuration of the game apparatus 10 according to the present embodiment. As shown in FIG. 1, the game apparatus 10 includes a portable game machine 11. The portable game machine 11 includes a control unit 14, a storage unit 16, a main storage 18, an image processing unit 20, a display unit 22, a touch panel 24, an input / output processing unit 26, a memory card slot 28, an operation key unit 32, and a voice processing unit 34. , An audio output unit 36, an audio input unit 38, a communication I / F (interface) 40, a sensor unit 42, a camera 44, and the like.

  The control unit 14 controls each unit of the game apparatus 10 based on an operating system stored in the storage unit 16, a program stored in the memory card 30, and various data. Moreover, the control part 14 is comprised including a real time clock, and functions also as a time measuring means.

  The storage unit 16 includes a nonvolatile storage medium such as a flash memory. The storage unit 16 stores an operating system and the like.

  The main memory 18 includes, for example, a RAM. The program stored in the storage unit 16 and the program read from the memory card 30 via the memory card slot 28 are written into the main memory 18 as necessary. The main memory 18 is also used as a working memory for the control unit 14.

  The bus 12 is used for exchanging addresses and various data between the respective units of the game apparatus 10. The control unit 14, the storage unit 16, the main storage 18, the image processing unit 20, and the input / output processing unit 26 are connected via the bus 12 so that mutual data communication is possible.

  The image processing unit 20 includes a VRAM. The image processing unit 20 draws an image on the VRAM according to an instruction from the control unit 14. The image drawn on the VRAM is displayed on the display unit 22 at a predetermined timing. The display unit 22 is, for example, one or a plurality of known liquid crystal display panels. A touch panel 24 is provided so as to be superimposed on the display unit 22.

  The input / output processing unit 26 is an interface for the control unit 14 to exchange various data with the touch panel 24, the memory card slot 28, the operation key unit 32, the voice processing unit 34, and the communication I / F 40.

  The memory card slot 28 reads out the game program and game data stored in the memory card 30 in accordance with an instruction from the control unit 14. The memory card 30 includes, for example, a nonvolatile storage medium that stores game data such as save data.

  In the present embodiment, a case where a game is executed using a program or data stored in the memory card 30 will be described, but any other information storage medium may be used. Further, a program and data may be supplied to the game apparatus 10 from a remote place via a data communication network such as the Internet.

  The operation key unit 32 functions as input means for the player to perform various operations. The operation key unit 32 includes a cross button, an analog stick, various buttons, and the like. The input / output processing unit 26 scans the state of each part of the operation key unit 32 at regular intervals (for example, every 1/60 seconds). An operation signal representing the scan result is supplied to the control unit 14 via the bus 12. The control unit 14 determines the operation content of the player based on the operation signal.

  The audio processing unit 34 includes a sound buffer. The audio processing unit 34 outputs music and audio from the audio output unit 36 based on the data stored in the sound buffer.

  The voice input unit 38 includes a microphone and the like. The voice input unit 38 detects the player's voice and the like, and inputs a detection signal to the control unit 14 via the input / output processing unit 26. The communication I / F 40 is an interface for connecting the game apparatus 10 to a communication network. The sensor unit 42 includes a gyro sensor that detects angular velocity, an acceleration sensor that detects acceleration, and the like.

  The camera 44 is configured to include a CMOS camera, a CCD camera, and the like, and images a real space. In the present embodiment, the camera 44 is included in the casing of the game apparatus 10, and the shooting range changes when the player changes the position or posture of the camera 44.

[3. Game executed on game device]
The game apparatus 10 executes a game in which the operation target of the player moves in the virtual space. Here, a case where a game using augmented reality (AR) is executed will be described. In a game using augmented reality, a world in which the real world and the virtual world are fused is provided to the player by displaying a screen that combines the real world and the virtual world.

  FIG. 2 is a diagram illustrating how a player plays a game using augmented reality. As shown in FIG. 2, the player plays the game while photographing the marker 50 (detection target) on which the predetermined pattern 54 is drawn with the camera 44 of the game apparatus 10. The marker 50 is a recording medium such as paper or film. For example, the marker 50 is disposed on a desk 56 in the real space.

  In the present embodiment, the marker 50 has a frame 52 (for example, a rectangular frame) having a predetermined size, and a predetermined pattern 54 (for example, an asymmetric pattern 54) is drawn in the frame 52. Explain the case. Here, as shown in FIG. 2, a case where an “L-shaped” pattern 54 is drawn on the marker 50 will be described. However, markers having various patterns used in augmented reality technology are applicable.

  Data for identifying the pattern 54 drawn on the marker 50 is stored in the storage unit 16 or the memory card 30 in advance. The game apparatus 10 is arranged in the real space by comparing the pattern 54 included in the real space image obtained by photographing the real space with the camera 44 and the stored pattern 54 based on a known image comparison algorithm. The information about the type, position, size, and orientation of the pattern 54 of the marker 50 is specified.

  The specified information (for example, the type, position, size, and direction of the pattern 54 of the marker 50) determines where and in what size or direction the object placed in the virtual space is displayed. Used for. That is, the information indicating the type, position, size, and orientation of the pattern 54 of the marker 50 is used to align the real space displayed on the display unit 22 with the virtual space.

  FIG. 3 is a diagram illustrating an example of a virtual space. When the game is started, a game space 60 (virtual three-dimensional space) simulating a battlefield is generated in the main memory 18. In the game space 60, three axes orthogonal to each other (a virtual space coordinate system described later) are set. Each object arranged in the game space 60 and the position of a virtual camera 76 described later are determined based on the three-dimensional coordinates set in the game space 60.

  As shown in FIG. 3, a field 62 that is an object indicating a battlefield is arranged in the game space 60. On the field 62, a tank 64 that is an object indicating the operation target of the player, an enemy 66 that is an object indicating an enemy to be attacked by the tank 64, and an obstacle that is an object indicating an obstacle placed on the battlefield. 68 and a hole 70 which is an object indicating a hole existing on the battlefield are arranged.

  The tank 64 operates according to the player's operation. When the player performs a direction instruction operation, the tank 64 moves or rotates in the direction indicated by the direction instruction operation. In the case where the tank 64 falls into the hole 70, the tank 64 may be disabled. For example, when the player performs an attack instruction operation, the tank 64 fires the bullet 72 in a predetermined direction and attacks the enemy 66 in accordance with the attack instruction operation. The bullet 72 moves under a given movement algorithm. When the bullet 72 and the enemy 66 collide, the enemy 66 can be damaged.

  On the other hand, the enemy 66 operates according to the operation of the computer. For example, when the distance between the tank 64 and the enemy 66 falls within a predetermined distance, the enemy 66 launches a bullet 74 toward the tank 64 and attacks the tank 64. When the bullet 74 and the tank 64 collide, the tank 64 is damaged. In this way, the player aims to destroy the enemy 66 while moving the tank 64 to avoid attacking the enemy 66.

  In the game space 60, a virtual camera 76 (viewpoint) is set. Virtual space images showing the game space 60 viewed from the virtual camera 76 are generated at predetermined time intervals. For example, a virtual space image indicating an object in the field of view (view frustum) of the virtual camera 76 among the objects arranged in the game space 60 is generated. In the present embodiment, since a game using augmented reality is executed, a game screen in which a real space image indicating a real space and a virtual space image are combined is displayed on the display unit 22.

  FIG. 4 is a diagram illustrating an example of a game screen displayed on the display unit 22. As shown in FIG. 4, a real space image and a virtual space image are combined and displayed on the game screen 80. For example, when the marker 50 is arranged on the desk 56 in the real space, the virtual camera 76 is controlled so that the field 62 is arranged on the desk 56 in the real space on the game screen 80.

  When the shooting range (area) of the camera 44 moves, the shooting range (area) of the virtual camera 76 also moves according to the movement. That is, when the player changes the position, orientation, or orientation of the game apparatus 10 to change the shooting range of the camera 44, the shooting range of the virtual camera 76 also changes with this change. For example, in the case of the game screen 80 shown in FIG. 4, when the player rotates the camera 44 leftward, the virtual camera 76 also rotates leftward and the rear side of the tank 64 is displayed widely.

  Also, as shown in FIG. 4, an elapsed time image 82 indicating the elapsed time from the start of the game and an energy guidance image 84 indicating the remaining energy of the tank 64 are displayed on the game screen 80. The elapsed time indicated by the elapsed time image 82 is appropriately updated by the time measured by the control unit 14.

  The energy guide image 84 includes a current value 84a indicating the current energy value of the tank 64, a current value gauge 84b corresponding to the current value 84a, and a consumption amount indicating the energy consumption amount when the tank 64 attacks. And an image 84c. Here, the energy of the tank 64 is reduced not only when the tank 64 attacks, but also when the tank 64 moves and when the tank 64 is damaged by the attack of the enemy 66.

  When the remaining energy of the tank 64 becomes 0, the tank 64 becomes inoperable and the game is over. Therefore, in the game of the embodiment, not only the tank 64 receives damage from the enemy 66 but also the game may be over if the tank 64 moves too much on the field 62 or attacks the enemy 66 too much.

  In the present embodiment, the virtual camera 76 is not automatically controlled according to the position of the tank 64, but the position and line-of-sight direction of the virtual camera 76 are controlled based on the positional relationship between the camera 44 and the marker 50. Therefore, the distance between the tank 64 and the virtual camera 76 is too far, and the tank 64 displayed on the game screen 80 may be extremely small. The game apparatus 10 is configured to change the energy of the tank 64 according to the distance between the tank 64 and the virtual camera 76 and reduce the possibility that the player will be over the game. Hereinafter, the present technology will be described in detail.

[4. Functions realized in game device]
FIG. 5 is a functional block diagram showing functions realized by the game apparatus 10. As shown in FIG. 5, the game apparatus 10 includes a game data storage unit 90, a game process execution unit 92, a real space image acquisition unit 94, a display control unit 96, a virtual viewpoint control unit 98, an operation target control unit 100, and a game. A parameter changing unit 102 is included. Each of these functions is realized, for example, when the control unit 14 executes a program stored in the memory card 30.

[4-1. Game data storage unit]
The game data storage unit 90 is realized mainly by the main memory 18 and the memory card 30. The game data storage unit 90 stores various game parameters necessary for executing the game. Here, the game data storage unit 90 stores game situation data indicating the situation of the game being executed, and augmented reality data necessary for providing the player with augmented reality.

[Game status data]
The game situation data includes, for example, the following data. The game situation data is updated every predetermined time. The game situation data is stored in time series.
(1) A game parameter indicating the state of the operation target (for example, an energy parameter indicating the energy of the tank 64)
(2) Game parameter indicating the ability of the operation target (for example, an ability value parameter indicating the attack power, defense power, etc. of the tank 64)
(3) Game parameters indicating the state of the enemy 66 (for example, physical fitness parameters indicating the physical strength of the enemy 66)
(4) Game parameter indicating the ability of the enemy 66 (for example, an ability value parameter indicating the attack power, defense power, etc. of the enemy 66)
(5) Data indicating the current situation of the game space 60 (for example, the position, posture, orientation, and movement direction of each object, and the position and line-of-sight direction of the virtual camera 76)
(6) Other data indicating the status of the game being executed (e.g., elapsed time from the start of the game)

[Augmented reality data]
The augmented reality data includes, for example, image data indicating the pattern 54 of the marker 50. The image data is used as a comparison target with the marker 50 arranged in the real space (that is, the marker 50 included in the real space image). That is, the augmented reality data is data that defines the pattern 54 of the marker 50 necessary for the player to use augmented reality.

  The control unit 14 functions as a means for acquiring various data stored in the game data storage unit 90. Further, the control unit 14 functions as means for changing (updating) various data stored in the game data storage unit 90. Further, the data stored in the game data storage unit 90 is not limited to the above example, and it is only necessary to store data necessary for the game apparatus 10 to execute the game.

[4-2. Game processing execution unit]
The game process execution unit 92 is realized mainly by the control unit 14. The game process execution unit 92 executes a game in which the player becomes advantageous or disadvantageous when a given game parameter changes.

  Here, the advantage is that the player is less likely to over the game, the player can easily clear the game, and the difficulty of the game is reduced. Here, the state where the energy parameter increases and the game is unlikely to be over (the energy parameter is moved away from the predetermined range) corresponds to “the player is advantageous”.

  On the other hand, the disadvantage is that the player is likely to be over the game, the player is difficult to clear the game, and the difficulty of the game is increased. Here, the state in which the energy parameter decreases and the game is likely to be over (the energy parameter approaches a predetermined range) corresponds to “the player is disadvantaged”.

  The game process execution unit 92 executes a game process based on the game parameter. In this embodiment, this game parameter is a game parameter indicating the ability or state of the operation target (for example, the tank 64). That is, the game process execution unit 92 executes a game that is advantageous or unfavorable to the player when the ability or state of the operation target (for example, the tank 64) changes.

  More specifically, here, the energy parameter of the tank 64 corresponds to a “game parameter”. In this case, as the energy parameter of the tank 64 increases, the state of the tank 64 becomes better (to move away from the range where the game is over), and the player becomes more advantageous. As the energy parameter of the tank 64 decreases, the tank 64 decreases. The player's state becomes worse (because it approaches the range where the game is over), which disadvantages the player.

  “Game processing” refers to processing relating to a game, and includes, for example, processing for generating a given game event. Here, the process of determining whether or not the value of the energy parameter of the tank 64 is within a predetermined range (for example, less than 0) (for example, the process of comparing the energy parameter with a threshold value) corresponds to the “game process”. When it is determined that the value of the energy parameter is within the predetermined range, the game process execution unit 92 suppresses the operation of the tank 64.

  “Suppressing the operation of the tank 64” is to restrict the tank 64 from operating even if the player performs an operation. For example, the game is over for the player, or the tank 64 is disabled. And reducing the remaining number of tanks 64. When the remaining number of tanks 64 decreases, information indicating the remaining number is stored in the game data storage unit 90 and updated as the game progresses. For example, when the number of residues is 0 and the energy parameter is 0, the game is over.

  Note that the game process executed by the game process execution unit 92 may be a process executed based on the game parameters, and the game process is not limited to the above example. In addition, for example, the display control process of the energy guidance image 84 performed based on the energy parameter of the tank 64 may correspond to the game process.

  Further, the game process execution unit 92 may function as an operation subject that executes other various game processes. For example, the game process execution unit 92 may operate the enemy 66 based on a given behavior algorithm. In this case, when the distance between the tank 64 and the enemy 66 falls within a predetermined distance, the game process execution unit 92 performs a process of firing bullets 74 from the enemy 66 toward the tank 64.

  Further, the operation content of the player and the type of operation of the tank 64 are associated in advance, and the game process execution unit 92 causes the tank 64 to perform the type of operation associated with the operation content input by the player. It may be. In this case, data indicating the amount of change (for example, consumption or recovery amount) of the energy parameter when the tank 64 performs each operation is stored in the game data storage unit 90, and the game process execution unit 92 The energy parameter may be changed based on the data. For example, when the tank 64 moves, when the tank 64 attacks, and when the tank 64 is damaged by the attack of the enemy 66, the energy parameter changes (decreases) by the amount of change associated with these actions. Will do.

[4-3. Real space image acquisition unit]
The real space image acquisition unit 94 is realized mainly by the control unit 14 and the camera 44. The real space image acquisition unit 94 changes the shooting range by the player's operation, and the real space showing the real space from the shooting means (for example, the camera 44) for shooting the real space where the detection target (for example, the marker 50) is arranged. Get an image. The shooting range of the camera 44 is determined based on the position of the camera 44 and the viewing direction in the real space. The shooting range of the camera 44 changes as the player changes the position, orientation, and orientation of the housing (that is, the housing of the game apparatus 10) in which the camera 44 is stored.

  Image data of a real space image generated when the camera 44 captures the real space is temporarily stored in the game data storage unit 90, for example. Here, the real space image is generated at predetermined time intervals (for example, at intervals corresponding to the frame rate set in the real space image acquisition unit 94) by the real space image acquisition unit 94 continuously shooting the real space. Is done.

[4-4. Display control unit]
The display control unit 96 is realized mainly by the control unit 14. The display control unit 96 includes a virtual space image showing a virtual space (for example, the game space 60) in which the operation target (for example, the tank 64) of the player is viewed from a virtual viewpoint (for example, the virtual camera 76), The real space image is synthesized and displayed on the display means (for example, the display unit 22).

  The virtual space image is generated by coordinate conversion of the vertex coordinates of the object in the visual field of the virtual camera 76 from the three-dimensional coordinates to the two-dimensional coordinates. The time interval at which the virtual space image is generated may be determined based on the time interval at which the real space image is generated (that is, the frame rate of the camera 44).

  Note that the game screen 80 displayed in the present embodiment may be an image in which a real space image and a virtual space image are combined. For example, the game screen 80 is a combined image in which a virtual space image is superimposed on a real space image. Alternatively, it may be a composite image in which a real space image and a virtual space image are alpha blended at a given ratio.

[4-5. Virtual viewpoint control unit]
The virtual viewpoint control unit 98 is realized mainly by the control unit 14. The virtual viewpoint control unit 98 controls the position and line-of-sight direction of the virtual viewpoint (for example, the virtual camera 76) based on the detection target (for example, the position, size, and direction of the marker 50) included in the real space image. .

  The virtual viewpoint control unit 98 has a positional relationship between the reference position in the real space (for example, the position of the marker 50) and the shooting range of the camera 44, and the reference position in the game space 60 (for example, the position of the origin of the game space 60). The virtual camera 76 is controlled so that the positional relationship with the visual field of the virtual camera 76 corresponds.

  In other words, the virtual viewpoint control unit 98 has a relationship between the coordinate system of the real space (hereinafter referred to as the real space coordinate system) and the coordinate system of the camera 44 (hereinafter referred to as the real viewpoint coordinate system) and the game. The virtual camera 76 is controlled so that the relationship between the coordinate system of the space 60 (hereinafter referred to as the virtual space coordinate system) and the coordinate system of the virtual camera 76 (hereinafter referred to as the virtual viewpoint coordinate system) correspond.

FIG. 6 is a diagram for explaining a method of controlling the virtual camera 76 by the virtual viewpoint control unit 98. As shown in FIG. 6, for example, in the real space, a real space coordinate system (X _RW -Y _RW -Z _RW coordinate system) is set based on the pattern 54 drawn on the marker 50, and the position of the camera 44 is An actual viewpoint coordinate system (X _RC -Y _RC -Z _RC coordinate system) is set based on the line-of-sight direction.

  The real space coordinate system is a coordinate system for representing the position of an object placed in the real space, and is a coordinate system based on the pattern 54 drawn on the marker 50. On the other hand, the real viewpoint coordinate system is a coordinate system for representing the positional relationship between the camera 44 and an object placed in the real space, and is a coordinate system based on the camera 44.

Here, the origin _ORW of the real space coordinate system is set at a predetermined position of the pattern 54 drawn on the marker 50. The X _RW axis direction corresponds to the short direction of the “L-shaped” pattern 54, and the Y _RW axis direction corresponds to the long direction of the “L-shaped” pattern. The Z _RW axis direction is the outer product direction of the X _RW axis direction and the Y _RW axis direction.

On the other hand, the origin O _RC reality viewpoint coordinate system is set to the position of the camera 44. For example, the _XRC axis direction corresponds to the longitudinal direction of the real space image (that is, the horizontal direction when viewed from the camera 44), and the _YRC axis direction corresponds to the short direction of the real space image (that is, when viewed from the camera 44). (Vertical direction). Further, for example, the _ZRC axis direction is set as the viewing direction of the camera 44.

The real space coordinate system (X _RW -Y _RW -Z _RW coordinate system) can be converted into a real viewpoint coordinate system (X _RC -Y _RC -Z _RC coordinate system) by rotating and translating. The virtual viewpoint control unit 98 performs coordinate conversion when converting from the real space coordinate system to the real viewpoint coordinate system based on the display content (position, size, and orientation) of the pattern 54 of the marker 50 in the real space image. An example is calculated.

  Specifically, first, the virtual viewpoint control unit 98 extracts the frame 52 of the marker 50 of the real space image based on a known contour extraction process. When the frame 52 of the marker 50 is extracted, the positions of the four corners of the frame 52 in the real space image are specified, whereby the positions of the markers 50 appearing in the real space image are specified.

  Then, the virtual viewpoint control unit 98 performs pattern matching processing between the pattern 54 drawn in the extracted frame 52 and the image data of the pattern 54 stored in the augmented reality data, so that the type of the marker 50 is determined. The size of the marker 50 appearing in the real space image and the direction of the pattern 54 are specified.

  Based on the position of the marker 50 in the real space image and the deviation between the size and orientation of the marker 50 in the real space image and the size and orientation of the marker 50 stored in the augmented reality data, A coordinate conversion matrix is obtained by calculating a rotation component and a translation component when converting to the real viewpoint coordinate system.

Based on this coordinate transformation matrix, the virtual viewpoint coordinate system (X _VC -Y _VC -Z _VC coordinate system) is set by transforming the virtual space coordinate system (X _VW -Y _VW -Z _VW coordinate system). .

The virtual space coordinate system is a coordinate system for representing the position of each object arranged in the game space 60, and the origin O _VW is at a given position in the game space 60 (for example, a position on the field 62). Is set. The virtual viewpoint coordinate system is a coordinate system for representing the positional relationship between the virtual camera 76 and each object. For example, the position of the virtual camera 76 is the origin O _VC of the virtual viewpoint coordinate system, and the line-of-sight direction of the virtual camera 76 is the Z _VC axis direction of the virtual viewpoint coordinate system. When the virtual space coordinate system is rotated and translated as indicated by the coordinate transformation matrix, the virtual viewpoint coordinate system is determined.

  As described above, a virtual space image showing a state where the game space 60 is viewed from the virtual camera 76 whose position and line-of-sight direction are determined is generated, and the game screen 80 is displayed by the display control unit 96. The method for controlling the position of the virtual camera 76 using the marker 50 is not limited to the above example, and various known methods can be applied. In addition, for example, the position control of the virtual camera 76 may be performed by simultaneously detecting a plurality of markers 50.

[4-6. Operation target control unit]
The operation target control unit 100 is realized mainly by the control unit 14. The operation target control unit 100 moves the operation target (for example, the tank 64) based on the player's movement instruction operation (direction instruction operation). For example, data in which the operation content is associated with the moving direction of the tank 64 is stored in advance, and the operation target control unit 100 moves the tank 64 in the moving direction associated with the operation content of the player. That is, the operation target control unit 100 moves the tank 64 in the direction indicated by the movement instruction operation of the player.

[4-7. Game parameter changing section]
The game parameter changing unit 102 is realized mainly by the control unit 14. The game parameter changing unit 102 changes the game parameters based on the current distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76) so that the player is advantageous or disadvantageous in the game. Let “Change the game parameter” is to increase or decrease the value of the game parameter.

  The game parameter changing unit 102 refers to the game situation data and specifies the position of the tank 64 and the position of the virtual camera 76 to acquire information on the distance between the tank 64 and the virtual camera 76. For example, an interval between the three-dimensional coordinates indicating the position of the tank 64 and the three-dimensional coordinates indicating the position of the virtual camera 76 is calculated.

  Here, the game parameter changing unit 102 changes the ability or state of the operation target (for example, the tank 64) by changing the game parameter based on the distance between the tank 64 and the virtual camera 76.

  FIG. 7 is a diagram illustrating the association between the distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76), and the change amount of the game parameter or the value after the change. The association data is stored in the game data storage unit 90. The association shown in FIG. 7 may be in the form of a table or a mathematical expression.

  Here, as shown in FIG. 7, a case will be described in which a distance condition related to the distance between the tank 64 and the virtual camera 76 is associated with the amount of change in the energy parameter of the tank 64 or the value after the change. As the distance condition, a range of distance between the tank 64 and the virtual camera 76 is stored.

  Based on the association shown in FIG. 7, the game parameter changing unit 102 changes the amount associated with the current distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76) or the value after the change. To get. The game parameter changing unit 102 changes a game parameter (for example, an energy parameter) based on the acquired change amount or the changed value. That is, the game parameter changing unit 102 adds or subtracts the change amount to the current energy parameter, or substitutes the changed value as the energy parameter value.

  Specifically, the game parameter changing unit 102 determines whether or not the distance condition is satisfied by comparing the distance between the tank 64 and the virtual camera 76 with the distance condition. That is, the game parameter changing unit 102 determines whether or not the distance between the tank 64 and the virtual camera 76 is within a predetermined range indicated by the distance condition. The “distance is a predetermined range” is a state where the distance is not less than the reference distance or a state where the distance is less than the reference distance. The game parameter changing unit 102 includes means for acquiring a change amount or a changed value associated with the distance condition determined to be satisfied, and based on the acquired change amount or the changed value, an energy parameter To change.

  As shown in FIG. 7, the game parameter changing unit 102 has a case where the tank 64 has a distance between the tank 64 and the virtual camera 76 within a predetermined range, and a case where the distance between the tank 64 and the virtual camera 76 is not within the predetermined range. The amount of change of the energy parameter or the value of the energy parameter is varied.

  That is, the game parameter changing unit 102 indicates the amount of change in the energy parameter when the distance between the tank 64 and the virtual camera 76 is within a predetermined range, and the energy parameter when the distance between the tank 64 and the virtual camera 76 is not within the predetermined range. Make it larger / smaller than the amount of change. Alternatively, the game parameter changing unit 102 indicates the energy parameter value when the distance between the tank 64 and the virtual camera 76 is within a predetermined range, and the energy parameter value when the distance between the tank 64 and the virtual camera 76 is not within the predetermined range. Larger / smaller than

  In the data storage example shown in FIG. 7, the game parameter changing unit 102 increases the energy parameter by a predetermined value when it is determined that the distance between the tank 64 and the virtual camera 76 is within the predetermined range. On the other hand, the game parameter changing unit 102 does not change the energy parameter when it is determined that the distance between the tank 64 and the virtual camera 76 is not within the predetermined range.

  When it is determined that the distance between the tank 64 and the virtual camera 76 is within the predetermined range, the game parameter changing unit 102 determines that the player is more than when the distance between the tank 64 and the virtual camera 76 is determined not to be within the predetermined range. Change the game parameters to be advantageous. In other words, when it is determined that the distance between the tank 64 and the virtual camera 76 is not within the predetermined range, the game parameter changing unit 102 determines that the distance between the tank 64 and the virtual camera 76 is within the predetermined range. The game parameters are changed so that the player is at a disadvantage compared to the case where the

  The game process execution unit 92 executes the game process based on the energy parameter changed by the game parameter change unit 102. Here, the game parameter changing unit 102 changes the energy parameter, and based on the energy parameter, the game process executing unit 92 determines whether or not the game is over.

  Note that the game parameter changing method by the game parameter changing unit 102 is not limited to the above example. The game parameter changing unit 102 may change the game parameter so that the player becomes more advantageous in the game as the distance between the tank 64 and the virtual camera 76 increases. In other words, the game parameter changing unit 102 may change the game parameter so that the player becomes disadvantageous in the game as the distance between the tank 64 and the virtual camera 76 becomes shorter.

  In the above description, the case where the energy parameter is changed by association in the table format has been described. However, the energy parameter may be changed by association in the formula format. For example, the game parameter changing unit 102 may change the energy parameter based on a value determined by substituting the distance between the tank 64 and the virtual camera 76 into a mathematical expression. In this case, the energy parameter changes by the value or the value itself becomes the energy parameter.

[5. Processing executed in game device]
Next, processing executed by the game apparatus 10 will be described. 8 and 9 are flowcharts showing processes related to the present invention among the processes executed by the game apparatus 10. For example, the control unit 14 executes the processes shown in FIGS. 8 and 9 according to a program stored in the memory card 30. For example, when a game start instruction is input, the processing shown in FIGS. 8 and 9 is executed.

  As shown in FIG. 8, first, the control unit 14 constructs a game space 60 in the main memory 18 (S1). In S1, for example, each object in the game space 60 is placed at a predetermined initial position, and an initial value is set for the energy parameter. Further, the virtual camera 76 may not be arranged in the game space 60 in the stage of S1.

  The control unit 14 causes the camera 44 to photograph the real space and generates a real space image (S2). The camera 44 continuously captures a real space and generates a real space image every predetermined time. The image data of the real space image may be temporarily stored in the main memory 18.

  The control unit 14 determines whether or not the marker 50 is included in the real space image (S3). In S3, the real space image generated in S2 is referred to, and whether or not the marker 50 is included is determined depending on whether or not the frame 52 of the marker 50 is detected. For example, data indicating the pattern of the shape of the frame 52 is stored in the augmented reality data, and the frame 52 is detected by comparing the pattern with the real space image.

  When it is determined that the marker 50 is included (S3; Y), the control unit 14 compares the pattern 54 drawn in the frame 52 of the marker 50 with the pattern 54 stored in the augmented reality data. Thus, it is determined whether or not the pattern 54 indicated by the augmented reality data is detected (S4). In the present embodiment, it is determined whether or not the “L-shaped” marker 50 is detected.

  When it is determined that the pattern 54 indicated by the augmented reality data is detected (S4; Y), the control unit 14 acquires the display position, size, and orientation of the pattern 54 in the real space image (S5). In S5, for example, the display position of the reference point set in the pattern 54 (for example, the point where the short side and the long side of the L shape intersect) is specified. Further, for example, information on the size of the pattern 54 is acquired based on the area of the pixel that matches the pattern 54 stored in the augmented reality data in the real space image. Further, for example, information on the orientation of the marker 50 is acquired based on the difference between the pattern 54 of the marker 50 in the real space image and the pattern 54 stored in the augmented reality data.

The control unit 14 determines the position and line-of-sight direction of the virtual camera 76 based on the display position, size, and orientation of the pattern 54 acquired in S5 (S6). For example, a coordinate transformation matrix from the real space coordinate system to the real viewpoint coordinate system is calculated based on the position, size, and orientation of the marker 50. Then, by applying the coordinate transformation matrix to the virtual space coordinate system, the position of the origin O _VC and the direction of the three axes of the virtual viewpoint coordinate system are determined. For example, the origin O _VC of the virtual viewpoint coordinate system is determined as the position of the virtual camera 76, and the Z _VC axis direction is determined as the viewing direction of the virtual camera 76.

  The control unit 14 combines the real space image generated by the camera 44 with the virtual space image that shows the game space 60 viewed from the virtual camera 76 whose position and line-of-sight direction are determined in S6. 80 is displayed (S7).

  The control unit 14 displays an energy guide image 84 indicating the current value of the energy parameter on the game screen 80 (S8). At the start of the game, an initial value (for example, the maximum value of the energy parameter) is set for the energy parameter, and an energy guide image 84 indicating the initial value is displayed.

  The control unit 14 displays the consumption image 84c indicating the decrease amount of the energy parameter when the tank 64 attacks, side by side on the current value gauge 84b (S9). In the present embodiment, when the tank 64 attacks, the current value gauge 84b contracts in the direction from the right end (first end) to the left end (second end) of the current value gauge 84b. Therefore, the right end position after contraction of the current value gauge 84b when the tank 64 attacks and the left end position of the consumption image 84c correspond to each other and the current right end position of the current value gauge 84b. The consumption image 84c is displayed so that the right end position of the consumption image 84c corresponds to the position (see FIG. 4).

  Moving to FIG. 9, the control unit 14 obtains a signal from the operation key unit 32 and determines the operation content of the player (S10). When the player performs a direction instruction operation (S10; direction instruction operation), the control unit 14 moves the tank 64 in the direction indicated by the direction instruction operation (S11). The control unit 14 decreases the energy parameter of the tank 64 by a value corresponding to the amount of movement of the tank 64 (S12). For example, the energy parameter decreases as the movement amount of the tank 64 increases.

  When the player performs an attack instruction operation (S10; attack instruction operation), the control unit 14 causes the tank 64 to fire the bullet 72 and attack the enemy 66 (S13), and decreases the energy parameter of the tank 64 by a predetermined value. (S14). In S14, bullets 72 are generated in the game space 60 and move based on a movement algorithm defined in the game program. When the bullet 72 comes into contact with the enemy 66, the enemy 66 can be given damage. Further, when the parameter indicating the physical strength of the enemy 66 falls within a predetermined range (for example, a reference value or less), the enemy 66 can be defeated.

  When the player performs another operation (S10; other operation), the control unit 14 executes a game process according to the operation (S15). For example, when an instruction to use an item used in a game is performed, the energy parameter may be changed (recovered).

  The control unit 14 determines whether or not the distance between the tank 64 and the virtual camera 76 is within a predetermined range (S16). In S16, an interval between the three-dimensional coordinates indicating the position of the tank 64 and the three-dimensional coordinates indicating the position of the virtual camera 76 is acquired, and it is determined whether or not the interval is equal to or greater than a threshold value.

  When it is determined that the distance between the tank 64 and the virtual camera 76 is within the predetermined range (S16; Y), the control unit 14 increases the energy parameter by a predetermined value (S17). If S17 has already been executed and the energy parameter has increased, the process of S17 may not be performed.

  On the other hand, when it is determined that the distance between the tank 64 and the virtual camera 76 is not within the predetermined range (S16; N), the control unit 14 determines whether or not the attack of the enemy 66 hits the tank 64 (S18). . In S18, for example, it is determined whether or not the bullet 74 fired by the enemy 66 has contacted the tank 64 based on a known hit determination process. That is, it is determined whether or not the tank 64 has been damaged by the attack of the enemy 66.

  When it is determined that the attack of the enemy 66 hits the tank 64 (S18; Y), the control unit 14 decreases the energy parameter of the tank 64 by a value corresponding to the defense power of the tank 64 and the attack power of the enemy 66. (S19). In S19, for example, the energy parameter changes by a value obtained by substituting the attack power of the tank 64 and the defense power of the enemy 66 into a given mathematical expression.

  In the above description, even when the distance between the tank 64 and the virtual camera 76 is equal to or greater than the threshold value, the process proceeds from S17 to S18, and the tank 64 receives the attack of the enemy 66. When the distance between the virtual camera 76 and the virtual camera 76 is equal to or greater than the threshold, the tank 64 may not accept the attack of the enemy 66. That is, after the process of S17 is executed, the process of S18 and S19 may not be executed and the process may proceed to S20.

  The control unit 14 determines whether or not the energy parameter has become 0 (S20). When it is determined that the energy parameter has become 0 (S20; Y), the control unit 14 displays a game over screen (S21), and the process ends.

  On the other hand, when it is not determined that the energy parameter has become 0 (S20; N), the control unit 14 determines whether or not a given clear condition is satisfied (S22). The clear condition is a predetermined condition for the occurrence of a game clear event, for example, a condition indicating whether or not all enemies 66 have been defeated. In S22, for example, it is determined whether or not the game situation data satisfies a clear condition.

  When it is determined that the given clear condition is satisfied (S22; Y), the control unit 14 displays a game clear screen (S23), and the process ends. If it is not determined that the given clear condition is satisfied (S22; N), the process returns to S2.

  When it is not determined that the marker 50 is included (S3; N), or when it is not determined that the pattern 54 is detected (S4; N), the control unit 14 deletes the virtual space image from the game screen 80 and displays “marker”. A predetermined message such as “cannot be detected” is displayed on the display unit 22 (S24). In this case, the player changes the position and orientation of the game apparatus 10 so that the marker 50 is included in the shooting range of the camera 44 and the marker 50 is displayed at a detectable position.

  According to the game device 10 described above, when the distance between the tank 64 and the virtual camera 76 exceeds a threshold value, the energy parameter increases by a predetermined value. Therefore, when the tank 64 is displayed extremely small, the player can play the game. It is possible to reduce the possibility of being over, and to reduce the disadvantage of the player.

[6. Modified example]
The present invention is not limited to the embodiment described above. Modifications can be made as appropriate without departing from the spirit of the present invention.

  (1) For example, in the embodiment, the case where the energy parameter is changed according to the distance between the tank 64 and the virtual camera 76 has been described. In addition, the energy is based on the distance between the tank 64 and the virtual camera 76. The amount of change or the value after the change of the energy parameter when changing the parameter may be determined based on various factors such as the game situation.

  FIG. 10 is a functional block diagram of Modification Example (1). As shown in FIG. 10, in addition to the functions of the embodiment, the game apparatus 10 of Modification Example (1) includes a first movement determination unit 104, a second movement determination unit 106, a positional relationship information acquisition unit 108, and a display position determination. The unit 110 and the situation determination unit 112 are realized.

  (1-1) For example, when the distance between the tank 64 and the virtual camera 76 changes, when the distance changes due to the movement of the tank 64 and when the distance changes due to the movement of the virtual camera 76 You could think so. In these cases, the method of changing the energy parameter may be different.

  The game apparatus 10 according to the modified example (1-1) includes at least one of a first movement determination unit 104 and a second movement determination unit 106. The first movement determination unit 104 and the second movement determination unit 106 are realized mainly by the control unit 14.

  When the distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76) changes, the first movement determination unit 104 determines whether the distance has changed due to the movement of the operation target. judge.

  “The distance between the tank 64 and the virtual camera 76 changes due to the movement of the tank 64” means that the tank 64 and the virtual camera 76 are caused by the movement of the tank 64 (due to the movement of the tank 64). The distance of the tank 64 and the virtual camera 76 when the distance between the tank 64 and the virtual camera 76 changes, for example, or the distance between the tank 64 and the virtual camera 76 is greater than the reference amount. In this state, the movement amount of the virtual camera 76 when changed is less than the reference amount.

  The above “when the distance between the tank 64 and the virtual camera 76 has changed” means when the distance between the tank 64 and the virtual camera 76 has changed (when the change in the distance in a predetermined period exceeds the threshold). This is a corresponding period (a period determined based on the time point), for example, a period from a predetermined time before the time point when it is determined that the distance between the tank 64 and the virtual camera 76 has changed to the time point.

  The first movement determination unit 104 obtains the position change amount of the tank 64 when the distance between the tank 64 and the virtual camera 76 changes with reference to the time-series change of the game situation data, and the position change amount. Is determined to be greater than or equal to the reference amount. When the position change amount is equal to or larger than the reference amount, it is determined that the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the tank 64. When the position change amount is less than the reference amount, it may be determined that the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the virtual camera 76.

  When the distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76) changes, the second movement determination unit 106 determines whether the distance has changed due to the movement of the virtual viewpoint. judge.

  “The distance between the tank 64 and the virtual camera 76 changes due to the movement of the virtual camera 76” means that the virtual camera 76 has moved (due to the movement of the virtual camera 76) and the virtual The distance from the camera 76 changes. For example, when the distance between the tank 64 and the virtual camera 76 changes, the movement amount of the virtual camera 76 is greater than or equal to the reference amount, or the tank 64 and the virtual camera 76 Is the state where the movement amount of the tank 64 is less than the reference amount.

  The second movement determination unit 106 refers to the time series change of the game situation data, acquires the position change amount of the virtual camera 76 when the distance between the tank 64 and the virtual camera 76 changes, and the position change It is determined whether or not the amount is greater than or equal to a reference amount. When the position change amount is equal to or larger than the reference amount, it is determined that the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the virtual camera 76. When the position change amount is less than the reference amount, it is determined that the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the tank 64.

  When the distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76) changes, the game parameter changing unit 102 of the modification (1-1) changes the current between the operation target and the virtual viewpoint. Based on the distance and the determination result of at least one of the first movement determination unit 104 and the second movement determination unit 106, a game parameter (for example, an energy parameter) is changed.

  FIG. 11 is a diagram illustrating a method of changing the energy parameter in the modified example (1-1). As shown in FIG. 11, information indicating a distance condition, a movement determination condition regarding at least one determination result of the first movement determination unit 104 and the second movement determination unit 106, and a change amount or a value after the change of the game parameter. Are stored in the game data storage unit 90 in association with each other.

  The movement determination condition stores information indicating the cause of the change in the distance between the tank 64 and the virtual camera 76. For example, whether or not the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the tank 64. Alternatively, a condition indicating whether or not the distance between the tank 64 and the virtual camera 76 has changed due to the movement of the virtual camera 76 is stored.

  Whether the game parameter changing unit 102 satisfies the movement determination condition by comparing at least one of the determination result of the first movement determination unit 104 and the determination result of the second movement determination unit 106 with the movement determination condition. Determine whether or not. That is, the game parameter changing unit 102 specifies a movement determination condition that is satisfied when the distance between the tank 64 and the virtual camera 76 changes. Then, the game parameter changing unit 102 acquires a change amount or a value after change associated with the distance condition and the movement determination condition determined to be satisfied, and based on the change amount or the value after change, the energy parameter To change.

  As shown in FIG. 11, the game parameter changing unit 102 changes the distance between the tank 64 and the virtual camera 76 due to the movement of the tank 64, and the tank 64 and the virtual camera 76 due to the movement of the virtual camera 76. When the energy parameter is changed according to the distance between the tank 64 and the virtual camera 76, the amount of change of the energy parameter or the value after the change is changed (that is, the degree to which it is advantageous) Different).

  For example, the game parameter changing unit 102 may change the energy parameter change amount or the value after the change when the distance between the tank 64 and the virtual camera 76 changes due to the movement of the tank 64. The amount of change in the energy parameter when the distance between the tank 64 and the virtual camera 76 changes or a value after the change is made larger / smaller.

  In the example illustrated in FIG. 11, the case where the association in the table format is prepared has been described, but the formula format may be used. That is, a mathematical expression when the distance changes due to the movement of the tank 64 and a mathematical expression when the distance changes due to the movement of the virtual camera 76 are prepared, and the distance between the tank 64 and the virtual camera 76 is prepared. The amount of change in the energy parameter or the numerical value after the change may be calculated by substituting the distance into a mathematical formula corresponding to the cause of the change.

  According to the modified example (1-1), the energy parameter can be changed differently according to the cause of the change in the distance between the tank 64 and the virtual camera 76.

  For example, the player who has mistakenly moved the tank 64 is disadvantageous by making the recovery amount of the energy parameter relatively large when the distance between the tank 64 and the virtual camera 76 changes due to the movement of the tank 64. Can be reduced. In addition, for example, by using a relatively large energy parameter recovery amount when the distance between the tank 64 and the virtual camera 76 changes due to the movement of the virtual camera 76, the user is used to the operation for moving the virtual camera 76. It is possible to alleviate the disadvantage of a non-player.

  (1-2) Further, for example, the energy parameter may be changed according to not only the current distance between the tank 64 and the virtual camera 76 but also the current positional relationship between the camera 44 and the marker 50. For example, when the camera 44 is out of the range in which the marker 50 can be detected, the player has to pay attention not only to game play but also to the operation of the camera 44. Therefore, the recovery amount of the energy parameter is increased. You may make it do.

  The game apparatus 10 according to the modified example (1-2) includes a positional relationship information acquisition unit 108. The positional relationship information acquisition unit 108 is realized mainly by the control unit 14. The positional relationship information acquisition unit 108 acquires information on the current positional relationship between the detection target and the photographing unit (for example, the camera 44) based on the detection target (for example, the marker 50) included in the real space image.

  FIG. 12 is a diagram illustrating the positional relationship between the marker 50 and the camera 44. As illustrated in FIG. 12, “information regarding the current positional relationship between the marker 50 and the camera 44” is information regarding a shift between the position of the marker 50 and the position of the camera 44. Or the information about the angle θ between the direction connecting the marker 50 and the camera 44 and the reference direction of the marker 50.

  FIG. 13 is a diagram illustrating a method for changing the energy parameter in the modified example (1-2). As shown in FIG. 13, the game data storage unit 90 associates the distance between the tank 64 and the virtual camera 76, the positional relationship between the marker 50 and the camera 44, and the amount of change or the value after the change of the energy parameter. Is remembered. Here, the distance condition, the positional relationship condition regarding the positional relationship between the marker 50 and the camera 44, and the amount of change or the value after the change of the energy parameter are associated with each other. As the positional relationship condition, a condition indicating whether or not the positional relationship between the camera 44 and the marker 50 is a given positional relationship is stored.

  The given positional relationship is a positional relationship in which a deviation between the position of the camera 44 and the position of the marker 50 falls within a predetermined range. For example, the positional relationship in which the camera 44 can detect the marker 50 is used. The positional relationship is within 50 detectable ranges. The detectable range of the marker 50 is an area determined based on the marker 50, and is an area where the camera 44 should be positioned in order to detect the marker 50.

FIG. 14 is a diagram showing a detectable range of the marker 50. As shown in FIG. 14, the detectable range is a predetermined range (the first reference distance d ₁ or more and the second reference distance d ₂ or less greater than the first reference distance) with respect to the marker 50, In addition, the angle between the direction connecting the marker 50 and the camera 44 and the surface direction of the marker 50 is a predetermined range (reference angle θ ₀ or more).

For example, it is determined whether the positional relationship between the detection target (for example, the marker 50) and the photographing unit (for example, the camera 44) is a positional relationship in which the distance d between the detection target and the photographing unit is within a predetermined range. . Alternatively, the positional relationship between the detection target (for example, the marker 50) and the photographing unit (for example, the camera 44) is a positional relationship in which the angle θ between the direction connecting the detection target and the photographing unit and the reference direction is within a predetermined range. It is determined whether or not. Reference direction is a direction associated with a marker 50, for example, (in this case, the horizontal direction. In other _words, X RW _{-Y RW} plane horizontal direction.) The surface direction of the marker 50 is.

For example, as shown in FIG. 14, when the camera 44 is at the position P ₀ , the distance d between the camera 44 and the marker 50 is less than the first reference distance d ₁ , and the camera 44 and the marker 50 are too close. 44 is determined to be outside the detectable range. On the other hand, when the camera 44 is at the position P _1, the distance d between the camera 44 and the marker 50 becomes the second reference distance d ₂ or more, since the camera 44 and the marker 50 is too far, the camera 44 is out of the detectable range It is determined that there is.

When the camera 44 is at the position P ₂ or the position P ₃ , the angle θ formed by the straight line connecting the camera 44 and the marker 50 and the surface direction of the marker 50 (X _RW -Y _RW plane direction) is the reference angle θ _0. Since the camera 44 is on the side surface side of the marker 50, it is determined that the camera 44 is outside the detectable range.

On the other hand, when the camera 44 is in the position _{P 4,} the camera 44 and the marker 50 and the distance d is a first reference distance _{d 1} or more, and, the second reference distance _d less than _2. Furthermore, the angle θ formed by the straight line connecting the camera 44 and the marker 50 and the horizontal direction of the marker 50 (X _RW -Y _RW plane direction) is equal to or greater than the reference angle θ ₀ . In this case, it is determined that the camera 44 is within the detectable range of the marker 50.

  That is, the positional relationship condition shown in FIG. 13 is a condition indicating whether or not the deviation between the position of the marker 50 and the position of the camera 44 is within a predetermined range, that is, the distance d between the marker 50 and the camera 44 is a predetermined range. Or a condition indicating whether or not the angle θ between the direction connecting the marker 50 and the camera 44 and the reference direction is within a predetermined range is stored.

  The positional relationship information acquisition unit 108 acquires information on the positional relationship between the marker 50 and the camera 44 (for example, information on deviation) based on the position, size, and orientation of the marker 50 included in the real space image. The game parameter changing unit 102 determines whether or not the positional relationship condition is satisfied by comparing the specified positional relationship and the positional relationship condition. For example, the positional relationship information acquisition unit 108 specifies the distance between the marker 50 and the camera 44 or the direction connecting the marker 50 and the camera 44 and the reference direction by specifying the three-dimensional coordinates between the marker 50 and the camera 44. Specify the angle. The display position determination unit 110 compares the specified distance or angle with the positional relationship condition.

  The game parameter changing unit 102 of the modified example (1-2) captures the current distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76), the detection target (for example, the marker 50), and the photographing. Based on the current positional relationship (for example, the current distance d or the current angle θ) with the means (for example, the camera 44), the game parameter (for example, the energy parameter) is changed. The game parameter changing unit 102 acquires the change amount and the changed value associated with the positional relationship condition determined to be satisfied, and changes the energy parameter based on the change amount and the changed value.

  As shown in FIG. 13, the game parameter changing unit 102 determines whether the camera 44 is within the detectable range of the marker 50 and the tank 64 and the virtual camera when the camera 44 is outside the detectable range of the marker 50. When the energy parameter is changed based on the distance to 76, the amount of change of the energy parameter or the value after the change is varied.

  For example, the game parameter changing unit 102 determines whether or not the energy parameter has changed or changed when the distance d between the marker 50 and the camera 44 is within a predetermined range and when the distance between the marker 50 and the camera 44 is not within the predetermined range. The value of is different. Further, for example, the game parameter changing unit 102 determines that the angle θ between the direction connecting the marker 50 and the camera 44 and the surface direction of the marker 50 is within a predetermined range, the direction connecting the marker 50 and the camera 44, and the marker 50. The amount of change of the energy parameter or the value after the change is made different when the angle with the surface direction is not within the predetermined range.

  That is, the amount of change of the energy parameter when the camera 44 is within the detectable range of the marker 50 or the value after the change, and the amount of change of the energy parameter when the camera 44 is outside the detectable range of the marker 50 or after the change. Larger / smaller than the value of.

  For example, the game parameter changing unit 102 indicates the amount of change or the value after the change in the energy parameter when the distance d between the marker 50 and the camera 44 is within a predetermined range, and the distance d between the marker 50 and the camera 44 is not within the predetermined range. The amount of change in the energy parameter or the value after the change is made larger / smaller. Alternatively, the game parameter changing unit 102 determines the energy parameter change amount or the value after the change when the angle θ between the direction connecting the marker 50 and the camera 44 and the surface direction of the marker 50 is within a predetermined range as the marker 50. The change amount of the energy parameter or the value after the change when the angle θ between the direction connecting the camera 44 and the surface direction of the marker 50 is not within the predetermined range is set to be larger / smaller.

  In the example illustrated in FIG. 13, the case where the association in the table format is prepared has been described, but the formula format may be used. In other words, a mathematical expression when the positional relationship between the marker 50 and the camera 44 is a given positional relationship and a mathematical formula when the positional relationship between the marker 50 and the camera 44 is not a given positional relationship are prepared. The amount of change in the energy parameter or the numerical value after the change may be calculated by substituting the distance between the tank 64 and the virtual camera 76 into the mathematical formula corresponding to the positional relationship between the marker 50 and the camera 44. Good. In addition, for example, a numerical value indicating the positional relationship between the marker 50 and the camera 44 (for example, a numerical value indicating the degree of deviation. That is, the distance d or the angle θ) and the distance between the tank 64 and the virtual camera 76 are expressed as mathematical expressions. By substituting, the amount of change of the energy parameter or the numerical value after the change may be calculated.

  According to the modified example (1-2), the amount or change of the energy parameter when the energy parameter is changed according to the distance between the tank 64 and the virtual camera 76 according to the positional relationship between the marker 50 and the camera 44. Later values can be different. For example, a relatively large energy parameter recovery amount when the camera 44 is out of the detectable range of the marker 50 may further disadvantage the player who cares about the operation of the camera 44. It can be effectively reduced.

  (1-3) For example, when the tank 64 is displayed near the center of the game screen 80, the player can easily check the tank 64, but the tank 64 is displayed near the end of the game screen 80. When the player is present, it is difficult for the player to confirm the tank 64. Therefore, the energy parameter recovery amount when the tank 64 is displayed near the end of the game screen 80 is larger than the energy parameter recovery amount when the tank 64 is displayed near the center of the game screen 80. You may make it do.

  The game apparatus 10 according to the modified example (1-3) includes a display position determination unit 110. The display position determination unit 110 is realized mainly by the control unit 14. The display position determination unit 110 determines whether or not the operation target (for example, the tank 64) is displayed in the end area of the screen (for example, the game screen 80) of the display means (for example, the display unit 22).

  FIG. 15 is a diagram showing an end area of the game screen 80. As shown in FIG. 15, the predetermined area including the end of the game screen 80 becomes the end area 86. That is, an area where the distance from the end of the game screen 80 is within a predetermined range is the end area 86.

For example, when screen coordinates (Xs−Ys) having the origin at the upper left corner of the game screen 80 are set, the position of each pixel on the game screen 80 is represented by the screen coordinates. The display area of the game screen 80 is a rectangle whose diagonal is a line connecting the origin O and the point P (Xmax, Ymax). In the example shown in FIG. 15, the end of the game screen 80 is a position where the Xs coordinate is 0 or Xmax, or a position where the Ys coordinate is 0 or Ymax. The end region 86 is, for example, a region where 0 ≦ Xs ≦ X ₁ or X ₂ ≦ Xs ≦ Xmax, and 0 ≦ Ys ≦ Y ₁ or Y ₂ ≦ Ys ≦ Ymax.

  When the game parameter is changed in a state where the operation target (for example, the tank 64) is displayed in the end region 86, the game parameter changing unit 102 of the modified example (1-3) is the end region 86. The game parameter is changed so that the player has an advantage over the case where the game parameter is changed while being displayed outside.

  FIG. 16 is a diagram illustrating a method of changing the energy parameter in the modified example (1-3). As shown in FIG. 16, the distance between the tank 64 and the virtual camera 76, the determination result of the display position determination unit 110, and the change amount of the game parameter or the value after the change are associated with each other in the game data storage unit 90. Remembered. In the display position condition shown in FIG. 16, information indicating whether or not the tank 64 is displayed in the end region 86 is stored.

  The game parameter change unit 102 determines whether or not the display position condition is satisfied by comparing the determination result of the display position determination unit 110 with the display position condition. Then, the game parameter change unit 102 acquires the change amount or the changed value associated with the distance condition and the display position condition determined to be satisfied, and based on the change amount or the changed value, the energy parameter To change.

  As shown in FIG. 16, the game parameter changing unit 102 uses the tank 64 and the virtual camera when the tank 64 is displayed in the end region 86 and when the tank 64 is not displayed in the end region 86. The amount of change of the energy parameter or the value after the change when the energy parameter is changed based on the distance to 76 is changed.

  For example, the game parameter changing unit 102 may change the energy parameter when the tank 64 is displayed in the end region 86 or a value after the change (that is, based on the distance between the tank 64 and the virtual camera 76). The amount of change in the case where the tank 64 is changed or the value after the change is made larger / smaller than the amount of change or the value after the change in the energy parameter when the tank 64 is not displayed in the end region 86.

  According to the modified example (1-3), the energy parameter can be changed differently when the tank 64 is displayed in the end region 86. For example, when the energy parameter is recovered based on the distance between the tank 64 and the virtual camera 76 in a state where the tank 64 is displayed in the end region 86, the amount of recovery of the energy parameter is relatively large. It is possible to support and assist the game play in a state where it is difficult to see the tank 64.

  (1-4) For example, the energy parameter may be changed in a different manner when the energy parameter is changed based on the distance between the tank 64 and the virtual camera 76 according to the game situation. For example, when the tank 64 is no longer displayed on the game screen 80, the energy parameter is close to 0, and the tank 64 is in a moribund state. The recovery amount may be increased.

  The game apparatus 10 according to the modified example (1-4) includes a situation determination unit 112. The situation determination unit 112 is realized mainly by the control unit 14. The situation determination unit 112 determines whether or not the current situation of the game is a given situation. “The game situation is a given situation” means that the value indicated by the game situation data is within a predetermined range. For example, the state of the tank 64 is a given state (a state where the energy parameter is within a predetermined range). ).

  FIG. 17 is a diagram illustrating a method for changing the energy parameter in the modified example (1-4). As shown in FIG. 17, the distance between the tank 64 and the virtual camera 76, the game situation, and the change amount information indicating the change amount of the game parameter are associated and stored in the game data storage unit 90. The situation condition shown in FIG. 17 is a condition indicating whether or not the game situation is a given situation, and a condition relating to a range of game parameter values is stored, for example, an energy parameter range is stored.

  The situation determination unit 112 determines whether or not the situation condition is satisfied by comparing the game situation data with the situation condition. The situation determination unit 112 determines whether or not the value indicated by the game situation data is within the range indicated by the situation condition. Here, the situation determination unit 112 specifies a situation condition that is satisfied by determining whether or not the energy parameter of the tank 64 is within a range indicated by the situation condition. Then, the game parameter changing unit 102 acquires a change amount or a changed value associated with the distance condition and the situation condition determined to be satisfied, and sets the energy parameter based on the change amount or the changed value. Change.

  When the game parameter changing unit 102 of the modified example (1-4) changes the game parameter in a state where the current situation of the game is a given situation, the game parameter is changed in a state where the current situation of the game is not a given situation. The game parameters are changed so that the player has an advantage over changing the parameters.

  As shown in FIG. 17, the game parameter changing unit 102 determines the distance between the tank 64 and the virtual camera 76 when the game situation is a given situation and when the game situation is not a given situation. Based on this, the amount of change or the value after the change when changing the energy parameter is varied.

  For example, the game parameter changing unit 102 changes the energy parameter when the energy parameter is within a predetermined range or a value after the change (that is, when changing the energy parameter based on the distance between the tank 64 and the virtual camera 76). The amount of change or the value after change) is made larger / smaller than the amount of change or the value after change of the energy parameter when the energy parameter is not within the predetermined range.

  According to the modified example (1-4), the amount of change or the value after the change when changing the energy parameter according to the distance between the tank 64 and the virtual camera 76 can be made different according to the game situation. . For example, it is possible to more effectively reduce the disadvantage of the player by making the energy parameter recovery amount relatively large when the tank 64 is drowned.

  (2) Also, for example, in the embodiment, the case where the player is made advantageous or disadvantageous by changing the energy parameter of the tank 64 has been described. However, the player is made advantageous or disadvantageous by changing other game parameters. You may make it make it.

  (2-1) For example, when the distance between the tank 64 and the virtual camera 76 is relatively large, the ability value parameter indicating the ability of the tank 64 is changed to improve the ability of the tank 64, and the game is not likely to be over. You may make it do.

  In the modified example (2-1), the ability value parameter indicating the ability of the tank 64 corresponds to a “game parameter” that is changed by the game parameter changing unit 102. If the ability value parameter changes so that the ability of the tank 64 is improved, the player becomes advantageous, and if the ability value parameter changes so that the ability of the tank 64 is lowered, the player becomes disadvantageous. For example, if the defensive power of the tank 64 is increased, the ability of the tank 64 is improved to be advantageous, and if the defensive power of the tank 64 is lowered, the ability of the tank 64 is lowered and disadvantageous.

  The game parameter changing unit 102 improves the capability of the tank 64 when the distance between the tank 64 and the virtual camera 76 is relatively far than when the distance between the tank 64 and the virtual camera 76 is not relatively far. As described above, the ability value parameter is changed. In other words, when the distance between the tank 64 and the virtual camera 76 is not relatively far, the game parameter changing unit 102 is more than when the distance between the tank 64 and the virtual camera 76 is relatively far away. The ability value parameter is changed so as to reduce the ability of the tank 64.

  As in the modification (2-1), the ability value parameter of the tank 64 may be changed based on the distance between the tank 64 and the virtual camera 76.

  (2-2) Further, for example, the player may be made advantageous or disadvantageous by changing a game parameter related to the enemy 66.

  In this case, a game parameter related to the ability or state of the enemy 66 (here, a parameter indicating the physical strength of the enemy 66 or an ability value parameter of the enemy 66) corresponds to a “game parameter” that the game parameter changing unit 102 changes. The game parameter changing unit 102 changes the ability or state of the enemy 66 by changing the game parameter based on the current distance between the operation target (for example, the tank 64) and the virtual viewpoint (for example, the virtual camera 76). Let

  In the modified example (2-2), a decrease in the ability of the enemy 66 and a deterioration in the state of the enemy 66 correspond to the player becoming more advantageous. That is, improving the ability of the enemy 66 and improving the state of the enemy 66 correspond to a disadvantage to the player.

  The game parameter changing unit 102 lowers the ability of the enemy 66 when the distance between the tank 64 and the virtual camera 76 is relatively far than when the distance between the tank 64 and the virtual camera 76 is relatively far away. Or, the game parameter is changed so as to deteriorate the state of the enemy 66. In other words, when the distance between the tank 64 and the virtual camera 76 is not relatively far, the game parameter changing unit 102 is more than when the distance between the tank 64 and the virtual camera 76 is relatively far away. The ability value parameter is changed so as to improve the ability of the tank 64.

  As in the modification example (2-2), the parameter related to the enemy 66 may be changed based on the distance between the tank 64 and the virtual camera 76.

  (2-3) Further, for example, when the tank 64 is not displayed on the game screen 80, the game parameter relating to the difficulty level of the game may be changed to make the player advantageous.

  In this case, a game parameter relating to the difficulty level of the game (hereinafter referred to as difficulty parameter) corresponds to a “game parameter” that is changed by the game parameter changing unit 102. The difficulty level parameter is stored in the game data storage unit 90. For example, the player selects from a plurality of difficulty levels when starting the game. The difficulty level parameter indicating the selected difficulty level is stored in the game data storage unit 90.

  FIG. 18 is an explanatory diagram for explaining the difficulty level parameter. The difficulty level parameter is an index indicating the difficulty of the game, and is set, for example, in three stages “EASY”, “NORMAL”, and “HARD”. As shown in FIG. 18, for example, when the difficulty level of the game is improved, the number of enemies 66 increases or the number of bullets 74 emitted by the enemies 66 increases. When the difficulty level of the game decreases, the number of enemies 66 decreases or the number of bullets 74 emitted by the enemies 66 decreases.

  The game parameter changing unit 102 changes the game difficulty by changing the game parameter based on the current distance between the tank 64 and the virtual camera 76. “Difficulty level changes” means that the difficulty level increases or decreases.

  FIG. 19 is a diagram illustrating a game parameter changing method in the modified example (2-3). As shown in FIG. 19, the distance between the tank 64 and the virtual camera 76 and the difficulty level are associated with each other and stored in the game data storage unit 90. The game parameter changing unit 102 sets the difficulty level associated with the satisfied distance condition.

  In the modified example (2-3), the lowering of the difficulty level of the game corresponds to the advantage of the player. That is, increasing the difficulty level of the game corresponds to disadvantages for the player. As shown in FIG. 19, the game parameter changing unit 102 has a greater distance between the tank 64 and the virtual camera 76 than when the distance between the tank 64 and the virtual camera 76 is relatively far from each other. What is necessary is just to make it change a difficulty parameter so that the difficulty of a game may fall.

  As in the modified example (2-3), the difficulty level of the game may be changed based on the distance between the tank 64 and the virtual camera 76.

  (3) For example, in the embodiment, the case where the energy parameter is automatically increased by a predetermined value when the distance between the tank 64 and the virtual camera 76 is within the predetermined range has been described. The method of changing the energy parameter due to is not limited to the example of the embodiment.

  For example, in the game as in the embodiment, the energy parameter is consumed when the tank 64 moves, but the energy parameter when the tank 64 moves based on the distance between the tank 64 and the virtual camera 76. You may make it vary consumption. That is, the game parameter changing unit 102 is configured such that when the distance between the tank 64 and the virtual camera 76 is within a predetermined range, the tank 64 moves more than when the distance between the tank 64 and the virtual camera 76 is not within the predetermined range. You may make it hard to become a game over by reducing energy consumption.

  For example, when the distance between the tank 64 and the virtual camera 76 is within a predetermined range, the game parameter changing unit 102 determines that the tank 64 has moved more than when the distance between the tank 64 and the virtual camera 76 is not within the predetermined range. The amount of change of the energy parameter, the amount of change of the energy parameter when the tank 64 attacks, and the amount of change of the energy parameter when the tank 64 is damaged by the attack from the enemy 66 are reduced. As a result, the player is unlikely to be over the game, so that the state where the distance between the tank 64 and the virtual camera 76 is relatively far is larger than the state where the distance between the tank 64 and the virtual camera 76 is relatively far away. Can be advantageous.

  In the above description, the case where the player becomes advantageous when the change amount of the energy parameter becomes small has been described. However, when the change amount of the energy parameter becomes large, the player may become advantageous. For example, when the player uses the recovery item, the recovery amount of the energy parameter of the tank 64 may correspond to the above “change amount”.

  In this case, the greater the amount of change in the energy parameter, the less likely the game will be over, so the player becomes more advantageous. Therefore, the game parameter changing unit 102 allows the player to recover the recovery item when the distance between the tank 64 and the virtual camera 76 is relatively far than when the distance between the tank 64 and the virtual camera 76 is not relatively far. The amount of recovery of the energy parameter may be increased when using.

  That is, the amount of change may indicate the amount of recovery of the energy parameter of the tank 64 when the player uses the recovery item. When the consumption amount of the energy parameter is increased, the player is disadvantaged. However, when the recovery amount of the energy parameter is increased, the player is advantageous. What is necessary is just to use properly the process which makes a variation | change_quantity large or small according to the game parameter of the object which the game parameter change part 102 changes.

  (4) For example, in the embodiment, the case where the game is cleared when all the enemies 66 are defeated has been described. However, the energy parameter is within a reference range (for example, a reference value or more) after a predetermined time has elapsed since the game started. If there is, the game may be cleared. In addition, for example, in the case of a game played by a plurality of players, a tank 64 operated by each of the plurality of players is arranged on the field so that the player with the highest energy parameter wins after a predetermined time has elapsed. Good.

  (5) Further, for example, in the embodiment, the game parameter that decreases when the tank 64 attacks or the like has been described as an example. However, the game parameter that increases when the tank 64 attacks or the like (for example, the degree of wear) Parameter) may be used. When the tank 64 moves or attacks, the game parameter increases.

  (6) For example, in the embodiment, the case where the tank 64 moves on the horizontal plane has been described, but the range in which the operation target of the player moves is not limited to the example of the embodiment. For example, the operation target may be a ball or a bird, and may be moved in the vertical direction in the virtual three-dimensional space by a player's operation.

  (7) Also, for example, two or more of the above modifications may be combined. For example, two or more functions of the first movement determination unit 104, the second movement determination unit 106, the positional relationship information acquisition unit 108, the display position determination unit 110, and the situation determination unit 112 described in the modification (1). May be combined. For example, the game parameter changing unit 102 may change two or more of an energy parameter, an ability value parameter, and a difficulty level parameter.

  (8) For example, as a method of providing augmented reality to the player, the method using the marker 50 has been described as an example, but the method of providing augmented reality is not limited to the above example. In addition, for example, an object that emits visible light in the real space and a virtual viewpoint is controlled according to the position of the object in the real space image, or the real space image can be displayed without arranging the marker 50 in the real space. A markerless method for extracting feature points from an included object (for example, desk 56) may be used. Further, the position control of the virtual camera 76 may be performed based on information from the sensor unit 42 (for example, information on the attitude of the game apparatus 10 obtained from the gyro sensor).

  (9) Further, for example, what is to be operated by the player is not limited to a tank, and a character may be placed in the virtual space as an operation target. The game executed on the game apparatus 10 may not be a game in which the operation target of the player fights the enemy. Any game may be used as long as the player operates the operation target. For example, a race game or the like may be executed.

  In the embodiment, the case where the terminal operated by the player is a game device has been described. However, the game device according to the present invention is not limited to this. In addition, for example, a game server in a network game may correspond to the game device. In this case, the terminal operated by the player acquires data indicating the result of the game processing by the game server via the network, and the game screen is displayed based on the data. Further, data indicating the operation content of the player is transmitted to the game server via the network. The game server acquires the player's operation via the network and performs various game processes. Thus, the technology according to the present invention may be applied to a network game.

  10 game devices, 11 portable game machines, 12 buses, 14 control units, 16 storage units, 18 main storages, 20 image processing units, 22 display units, 24 touch panels, 26 input / output processing units, 28 memory card slots, 30 memory cards , 32 operation key part, 34 voice processing part, 36 voice output part, 38 voice input part, 40 communication I / F, 42 sensor part, 44 camera, 50 marker, 52 frame, 54 patterns, 56 desks, 60 game space, 62 fields, 64 tanks, 66 enemies, 68 obstacles, 70 holes, 72, 74 bullets, 76 virtual cameras, 80 game screens, 82 elapsed time images, 84 energy guidance images, 84a current value, 84b current value gauge, 84c consumption Quantity image, 86 edge region, 90 game data storage unit, 92 game process execution unit, 94 real sky Inter-image acquisition unit, 96 display control unit, 98 virtual viewpoint control unit, 100 operation target control unit, 102 game parameter change unit, 104 first movement determination unit, 106 second movement determination unit, 108 positional relationship information acquisition unit, 110 Display position determination unit, 112 Situation determination unit.

Claims (13)

A game device for executing a game in which a player becomes advantageous or disadvantageous when a given game parameter changes,
Game parameter acquisition means for acquiring the game parameter from the means for storing the game parameter;
Means for obtaining a real space image indicating the real space from a photographing means for photographing a real space in which a photographing range is changed based on an operation of the player and a detection target is arranged;
Display control means for combining the virtual space image showing the virtual space where the operation target of the player is viewed from a virtual viewpoint and the real space image and displaying the synthesized image on the display means;
Virtual viewpoint control means for controlling the position and line-of-sight direction of the virtual viewpoint based on the detection target included in the real space image;
Operation target control means for moving the operation target based on a movement instruction operation of the player;
Game parameter changing means for changing the game parameter based on the current distance between the operation target and the virtual viewpoint so that the player is advantageous or disadvantageous in the game;
Game process execution means for executing a game process based on the changed game parameter;
A game apparatus comprising: The game device includes:
First movement determination means for determining whether or not the distance has changed due to movement of the operation object when the distance between the operation object and the virtual viewpoint has changed;
When the distance between the operation target and the virtual viewpoint has changed, second movement determination means for determining whether the distance has changed due to the movement of the virtual viewpoint;
At least one of
The game parameter changing means is
When the distance between the operation target and the virtual viewpoint changes, a current distance between the operation target and the virtual viewpoint, and a determination result of at least one of the first movement determination unit and the second movement determination unit Changing the game parameters based on
The game device according to claim 1. The game device includes:
Based on the detection target included in the real space image, further includes positional relationship information acquisition means for acquiring information on the current positional relationship between the detection target and the imaging means,
The game parameter changing means is
Changing the game parameter based on a current distance between the operation target and the virtual viewpoint and a current positional relationship between the detection target and the photographing unit;
The game device according to claim 1, wherein the game device is a game device. The positional relationship information acquisition means includes
Based on the detection target included in the real space image, obtain information on the current distance between the detection target and the imaging unit,
The game parameter changing means is
Changing the game parameter based on a current distance between the operation target and the virtual viewpoint and a current distance between the detection target and the photographing unit;
The game device according to claim 3. The positional relationship information acquisition means includes
Based on the detection target included in the real space image, obtain information on an angle between a direction connecting the detection target and the imaging unit and a reference direction of the detection target;
The game parameter changing means is
Changing the game parameter based on the current distance between the operation target and the virtual viewpoint and the current angle;
The game device according to claim 3, wherein the game device is a game device. The game device includes:
Means for determining whether or not the operation object is displayed within an end region of the screen of the display means;
The game parameter changing means is
When changing the game parameter in a state where the operation target is displayed in the end region, rather than changing the game parameter in a state where the operation target is displayed outside the end region, Changing the game parameters so that the player is advantageous;
The game device according to claim 1, wherein the game device is a game device. The game device includes:
Means for acquiring game situation data from means for storing game situation data indicating the situation of the game being executed;
Means for determining whether the current situation of the game is a given situation;
Further including
The game parameter changing means is
When the game parameter is changed while the current situation of the game is the given situation, the game parameter is changed more than when the game parameter is changed when the current situation of the game is not the given situation. Changing the game parameters so that the player has an advantage,
The game device according to claim 1, wherein the game device is a game device. The game parameter changing means is
The change amount associated with the current distance between the operation target and the virtual viewpoint based on the association between the distance between the operation target and the virtual viewpoint and the change amount of the game parameter or the value after the change. Or a means for acquiring the changed value, and changing the game parameter based on the acquired change amount or the changed value.
The game device according to claim 1, wherein the game device is a game device. The game parameter is a game parameter related to the ability or state of the operation target,
The game parameter changing means is
Changing the ability or state of the operation target by changing the game parameter based on the current distance between the operation target and the virtual viewpoint;
The game device according to claim 1, wherein: The game is a game in which the operation target fights an enemy,
The game parameter is a game parameter related to the ability or state of the enemy,
The game parameter changing means is
Based on the current distance between the operation target and the virtual viewpoint, the ability or state of the enemy is changed by changing the game parameter.
The game device according to claim 1, wherein: The game parameter is a game parameter related to the difficulty level of the game,
The game parameter changing means is
Changing the game difficulty by changing the game parameter based on the current distance between the operation target and the virtual viewpoint;
The game device according to claim 1, wherein: A control method of a game device for executing a game in which a player becomes advantageous or disadvantageous when a given game parameter changes,
A game parameter acquisition step of acquiring the game parameter from the means for storing the game parameter;
Acquiring a real space image indicating the real space from a photographing means for photographing a real space where a photographing range is changed based on an operation of the player and a detection target is arranged;
A display control step of combining the virtual space image showing the virtual space where the operation target of the player is viewed from a virtual viewpoint and the real space image, and displaying the synthesized image on the display means;
A virtual viewpoint control step of controlling the position and line-of-sight direction of the virtual viewpoint based on the detection target included in the real space image;
An operation target control step of moving the operation target based on the movement instruction operation of the player;
A game parameter changing step for changing the game parameter based on a current distance between the operation target and the virtual viewpoint so that the player becomes advantageous or disadvantageous in the game;
A game process execution step for executing a game process based on the changed game parameter;
A method for controlling a game device, comprising: A program for causing a computer to execute a game in which a player becomes advantageous or disadvantageous when a given game parameter changes,
Game parameter obtaining means for obtaining the game parameter from the means for storing the game parameter;
Means for obtaining a real space image showing the real space from a photographing means for photographing a real space in which a photographing range is changed based on an operation of the player and a detection target is arranged;
Display control means for synthesizing a virtual space image showing a virtual space in which the operation target of the player is viewed from a virtual viewpoint and the real space image and displaying the synthesized image on the display means;
Virtual viewpoint control means for controlling the position and line-of-sight direction of the virtual viewpoint based on the detection target included in the real space image;
Operation target control means for moving the operation target based on the movement instruction operation of the player;
Game parameter changing means for changing the game parameter based on a current distance between the operation target and the virtual viewpoint so that the player is advantageous or disadvantageous in the game;
Game process execution means for executing a game process based on the changed game parameter;
A program for causing the computer to function as

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