JP6395422B2 - Game program and game system - Google Patents

Description

  The present invention relates to a game program and a game system for a game set in a three-dimensional virtual game space.

  2. Description of the Related Art Conventionally, there is a game that progresses with a player character acting in a virtual game space by a user operation. For example, there is a gun shooting game in which a user operates a player character having a firearm such as a gun or a rifle, and advances the game while shooting and defeating an enemy character encountered (for example, Patent Document 1).

  This patent document 1 discloses a technique for zooming and displaying a shooting target on a display connected to a game system. Specifically, when the gun-type controller operated by the user is pointed at the screen of the game machine, the aiming position in the screen by the gun-type controller is detected. Then, it is determined whether or not this aiming position is within a predetermined range from a point preset for an object existing in the virtual game space. As a result, when it is determined that it is within the predetermined range, zoom processing is performed to enlarge and display the vicinity of the aiming position.

JP2008-93307

  However, in the game of Patent Document 1, the zoom rate is fixed, and the display cannot be enlarged at the zoom rate desired by the user. Further, in an action game such as a gun shooting game, it may be necessary to quickly grasp the presence of an enemy character or accurately snip a distant target. Therefore, it is desirable for the user to enlarge and display at a desired arbitrary zoom rate according to the situation of the game or to quickly perform an operation for that.

  Therefore, the present invention provides a game program and a game system for realizing a game in which a virtual camera that captures a virtual game space can be adjusted to a zoom rate desired by the user and the user can intuitively and quickly adjust the zoom rate. The purpose is to do.

  A game program according to the present invention includes a virtual camera control unit that controls a virtual camera that captures a three-dimensional virtual game space, a game image generation unit that generates a game image based on the captured image, and a user. Functioning as a first operation acquisition unit that acquires a physical and continuous displacement amount of the first operation unit operated by the virtual camera control unit, wherein the virtual camera control unit is adapted to continuously change the displacement amount of the first operation unit. In response, the zoom rate of the virtual camera is continuously changed.

  Accordingly, the zoom ratio desired by the user can be adjusted by displacing the first operation unit. In addition, for example, unlike a long press operation of a button, the zoom rate continuously changes according to the physical and continuous displacement amount of the first operation unit. Therefore, the user can adjust to a desired zoom rate with an intuitive operation in a very short time.

  Further, the computer is caused to function as a second operation acquisition unit that acquires a user operation on the second operation unit, and the game image generation unit displays an aiming mark in the game image, and the user performs the operation The aiming mark is moved in response to an operation on the second operation unit, and the virtual camera control means changes the orientation of the virtual camera following the aiming mark when the second operation unit is operated. The following mode may be changed according to the amount of displacement of the first operation unit when the second operation unit is operated.

  Accordingly, it is possible to realize an operation of changing the orientation of the virtual camera according to the zoom rate of the virtual camera when the second operation unit is operated.

  Further, the virtual camera control means sets a predetermined play area in the game image so as to include the aim mark, and the movement destination of the aim mark by the operation of the second operation unit is within the play area. In this case, the aiming mark is moved while the direction of the virtual camera is fixed, and the aiming mark moved by the operation of the second operation unit is outside the play area, the aiming mark is moved. The movement direction of the virtual camera may be followed, and the play area may be expanded or contracted continuously or stepwise according to the amount of displacement of the first operation unit.

  By setting such a play area, even if the second operation unit is operated, only the aiming mark can be moved without changing the orientation of the virtual camera. In addition, an appropriate play area corresponding to the zoom rate can be set by expanding and contracting the play area according to the displacement amount of the first operation unit.

  The virtual camera control means may increase the zoom ratio of the virtual camera and enlarge the play area as the displacement amount of the first operation unit increases.

  As a result, the larger the zoom rate of the virtual camera, the larger the play area where only the aiming mark moves, and the smaller the zoom rate, the more the position of the aiming mark and the direction of the virtual camera are linked according to the operation of the second operation unit. It becomes easy to do. Therefore, when the zoom rate is high, the virtual camera moves less and it becomes easier to perform precise shooting. When the zoom rate is low, the virtual camera can be quickly changed in response to the user's operation of the second operation unit. , You can quickly see a wide range in the virtual game space.

  Further, the computer is caused to function as an ejection unit that ejects an object to be ejected in the direction in which the virtual camera is directed in the virtual game space, and the ejection unit corresponds to a displacement amount of the first operation unit. Thus, it is possible to continuously change the bullet collection rate indicating the degree of dispersion of the arrival points of the injection target.

  As a result, for example, when the zoom rate is increased, the collection rate can be increased so that precise shooting can be performed. In addition, when the zoom rate is reduced, the bullet collection rate can be lowered so that the bullet can be shot over a wide range. In this way, the zoom rate and the collection rate can be linked.

  The first operation unit may include an operation element that is biased in a predetermined direction.

  Thus, the zoom ratio desired by the user can be adjusted by an intuitive operation that can be performed in a very short time of displacing the operation element.

  In addition, a game system according to the present invention includes a program storage unit that stores any of the above-described game programs, and a computer that executes the program stored in the program storage unit.

  According to the present invention, a game program and a game system for realizing a game in which a virtual camera that captures a virtual game space can be adjusted to a zoom rate desired by the user and the user can intuitively and quickly adjust the zoom rate. Can be provided.

It is a block diagram which shows the hardware constitutions of a game system. It is drawing explaining the structure of a controller. It is a block diagram which shows the functional structure of a game device. FIG. 6 is a flowchart and a schematic diagram for explaining an operation example 1; It is the flowchart and schematic diagram explaining the example 2 of operation. 10 is a flowchart for explaining an operation example 3; FIG. 10 is a schematic diagram for explaining an operation example 3;

  Hereinafter, a game program and a game system according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a gun shooting game in which a user operates an action of a player character in a virtual game space and moves toward a destination while shooting an enemy character will be described as an example. .

(Hardware configuration)
FIG. 1 is a block diagram showing a hardware configuration of the game system 1. The game system 1 includes a game device 2 and a server device 3. The game apparatus 2 can communicate with another game apparatus 2 and the server apparatus 3 via a communication network NW such as the Internet or a LAN. The game apparatus 2 includes a CPU 10 which is a computer for controlling the operation thereof, and the CPU 10 is connected to a disk drive 12, a memory card slot 13, an HDD 14 and a ROM 15 constituting a program storage unit, and a RAM 16 via a bus 11 Has been.

  The disk drive 12 can be loaded with a disk type recording medium 30 such as a DVD-ROM. On the disc-type recording medium 30, a game program 30a and game data 30b according to the present embodiment are recorded. The game data 30b includes various data necessary for the progress of the game, such as data necessary for forming each character and virtual game space. In addition, a card-type recording medium 31 can be loaded in the memory card slot 13, and save data indicating a play status such as a game progress can be recorded in accordance with an instruction from the CPU 10.

  The HDD 14 is a large-capacity recording medium built in the game apparatus 2 and records a game program 30a and game data 30b read from the disk-type recording medium 30, and save data and the like. The ROM 15 is a semiconductor memory such as a mask ROM or PROM, and stores a startup program for starting the game apparatus 2, a program for controlling an operation when the disk type recording medium 30 is loaded, and the like. The RAM 16 is composed of DRAM, SRAM, or the like, and reads a game program 30a to be executed by the CPU 10 or game data 30b necessary for the execution from the disk-type recording medium 30 or the HDD 14 in accordance with the game play status. To record temporarily.

  Further, a graphic processing unit 17, an audio synthesis unit 20, a wireless communication control unit 23, and a network interface 26 are connected to the CPU 10 via the bus 11.

  Among these, the graphic processing unit 17 draws a game image including the virtual game space, each character, and the like according to an instruction from the CPU 10. That is, the position, orientation, zoom rate (view angle), etc. of the virtual camera set in the virtual game space are adjusted, and the virtual game space is photographed. Then, the photographed image is rendered, and a two-dimensional game image for display is generated. In addition, an external display (display unit) 19 is connected to the graphic processing unit 17 via a video conversion unit 18. The game image drawn by the graphic processing unit 17 is converted into a moving image format by the video conversion unit 18 and displayed on the display 19.

  The audio synthesizing unit 20 reproduces and synthesizes digital game sound in accordance with instructions from the CPU 10. An external speaker 22 is connected to the audio synthesis unit 20 via an audio conversion unit 21. Accordingly, the game sound reproduced and synthesized by the audio synthesizing unit 20 is decoded into an analog format by the audio converting unit 21 and outputted from the speaker 22 to the outside.

  The wireless communication control unit 23 has a 2.4 GHz band wireless communication module and is wirelessly connected to the controller 24 attached to the game apparatus 2 so that data can be transmitted and received. The user can input a signal to the game apparatus 2 by operating the operation unit 25 (see FIG. 2) such as a button provided on the controller 24, and can perform the action of the player character displayed on the display 19. Control.

  FIG. 2 is a diagram for explaining the configuration of the controller 24. The controller 24 includes a plurality of operation units 25 (251 to 253) in addition to the communication unit 24a that communicates with the wireless communication control unit 23. More specifically, the operation unit 25 includes a volume switch type first operation unit 251, a stick type second operation unit 252 and an on / off type third operation unit 253.

  The volume switch type first operation unit 251 is configured to be physically and continuously displaced by a user operation. The operation amount by the user (physical displacement amount of the first operation unit 251) and the output signal value (for example, voltage value or frequency) have a one-to-one relationship. Typically, as shown in the graph of FIG. 2, the operation amount of the first operation unit 251 and the output signal value are in a proportional relationship. Therefore, the CPU 10 can uniquely acquire the operation amount of the first operation unit 251 by the user based on the output signal from the first operation unit 251. In the game system 1 according to the present embodiment, at least the zoom rate of the virtual camera continuously changes according to the continuous change in the displacement amount of the first operation unit 251 (details will be described later).

  As a specific configuration example of the first operation unit 251, as shown in FIG. 2, an operation element 251 a urged in the protruding direction by an elastic body or the like can be employed. In the case of such a configuration, when the operating element 251a in the protruding state (non-operating position) is operated to be pressed with, for example, an index finger, the operating element 251a can be pressed to a predetermined position (maximum operating position). Further, when the pushing pressure of the index finger is eased, the operation element 251a returns to the initial state by the urging force. The first operation unit 251 then moves from the non-operation position at an arbitrary position (displacement amount; x%) between the non-operation position (displacement amount; 0%) and the maximum operation position (displacement amount; 100%). The output signal value corresponding to the displacement amount (operation amount) of the operation element 251a is output.

  The stick-type second operation unit 252 includes, for example, a stick-like operation element 252a that is operated with the user's thumb. The operation element 252a can be tilted to 360 ° in all directions around the reference position in the upright state. When the second operation unit 252 is operated, for example, a player character moves, a shooting aim mark displayed in the virtual game space moves, or a virtual image for shooting a virtual game space, depending on the tilt direction. The camera orientation changes.

  The on / off-type third operation unit 253 includes a button-like operation element 253a that is operated with a user's thumb, for example. The third operation unit 253 outputs an on signal when operated by the user, and outputs an off signal when not operated (or does not output an on signal). The third operation unit 253 is used, for example, for determination of various setting items on the configuration screen, execution (determination) of a predetermined action of the player character such as shooting for aiming.

  Note that the number of operation units 251 to 253 of each type is not limited to one, and a plurality of each may be provided. In addition, the configuration of each of the operation units 251 to 253 described above is an example, and the specific configuration is not limited to this, and other configurations can be adopted as appropriate.

  Returning to the description of FIG. 1, the network interface 26 connects the game apparatus 2 to a communication network NW such as the Internet or a LAN, and can communicate with other game apparatuses 2 and the server apparatus 3. . Then, by connecting the game apparatus 2 to another game apparatus 2 via the communication network NW and transmitting / receiving data to / from each other, a plurality of player characters can be displayed in synchronization within the same game space. Therefore, multiplayer in which a plurality of people advance the game together is possible.

(Functional configuration of game device)
FIG. 3 is a block diagram illustrating a functional configuration of the game apparatus 2 included in the game system 1. The game device 2 executes the game program of the present invention, so that a game space generation unit 40, a character control unit 41, a game image generation unit 42, a camera control unit 43, an operation acquisition unit 44, and a game progress control unit 45 Function. Each of these functions is composed of the CPU 10, HDD 14, ROM 15, RAM 16, graphic processing unit 17, video conversion unit 18 and the like shown in FIG.

  The game space generation unit 40 generates a three-dimensional virtual game space as a stage where the player character acts. For example, the virtual game space is generated by determining the position and texture of the object, determining the light source setting, determining the effect settings such as fog and sparks, etc., for each elapse of one frame according to the frame rate. .

  The character control unit 41 generates, in the virtual game space, a player character for which the user operates an action and a non-player character that cannot be operated by the user. Further, the movement of the player character is controlled according to the operation of the operation unit 25 by the user, or the movement of the non-player character is controlled according to the game situation. For example, when the user tilts the second operation unit 252 in a certain direction, the posture of the player character is changed in that direction, or the player character is moved in that direction. Further, when the user depresses the third operation unit 253, the player character is caused to execute a predetermined attack action.

  As an example of the attacking action, the player character can shoot a remote enemy character using a firearm. In order to realize such an attack by a firearm, the character control unit 41 has a firearm injection unit (injection means) 41a. That is, when the user depresses the third operation unit 253, the firearm ejection unit 41a ejects a bullet (a target object) in the direction in which the virtual camera is directed in the virtual game space. Also, the firearm injection unit 41a has a collection rate that indicates the degree of dispersion of the arrival points of the injection target object according to the operation amount (displacement amount) of the first operation unit 251 when the third operation unit 253 is pressed. Is changed (details will be described later).

  In addition, as a firearm, in addition to rifles such as pistols, rifles, and shotguns, any injection-type weapons such as bows and arrows, bow guns, tank cannons and missiles can be employed. In addition, attacking means such as magic that cause some action against a distant target can also be included in the firing weapon. Further, when the player character throws a knife or a grenade, the player character who performs the throwing action can be the ejection means. Depending on the type of firearm, the collection rate or the maximum zoom rate when the first operation unit 251 is operated may be varied.

  The game image generation unit 42 generates a game image to be displayed on the display 19 at a predetermined frame rate based on the image taken by the virtual camera. For example, based on the virtual game space generated by the game space generation unit 40, a rendering process is performed in order to obtain a two-dimensional game image captured by a virtual camera. In this rendering processing, known image processing such as solid processing, extraction processing, transparency processing, effect processing, and screen processing is appropriately performed as necessary. Further, in this game, in order to assist the remote attack of the player character, an aiming mark indicating the aim is displayed in the game image. Therefore, the game image generation unit 42 performs a process of displaying the aim mark on the game image, for example, when the player character holds a firearm.

  The camera control unit 43 controls a virtual camera that captures the virtual game space. For example, when the user operates the first operation unit 251, the zoom rate (view angle) of the virtual camera is changed according to the operation amount (physical displacement amount). When the user tilts the second operation unit 252 in a certain direction, the direction of the virtual camera is changed in that direction.

  The operation acquisition unit 44 includes a first operation acquisition unit 44a, a second operation acquisition unit 44b, and a third operation acquisition unit 44c, and acquires the presence / absence of an operation on each operation unit 25 by the user and the operation amount. That is, the first operation acquisition unit 44a acquires the operation amount (physical displacement amount) by the user for the volume switch type first operation unit 251. The second operation acquisition unit 44b acquires the presence / absence of the stick tilting operation and the tilting direction of the stick-type second operation unit 252. The third operation acquisition unit 44c acquires the presence / absence of a pressing operation for the on / off-type third operation unit 253.

  The game progress control unit 45 controls the progress of the game in accordance with the user's operation and the passage of time in the game. For example, when a player character performs a predetermined action by a user operation, a predetermined event is generated and a predetermined pre-rendering movie is reproduced for a predetermined period. Further, the environment in the virtual game space is changed with the passage of time in the game. Further, enemy characters appear at various locations in the virtual game space in accordance with the location of the player character.

(Game system operation)
Next, the operation of the game system according to the operation of the controller 24 by the user will be described.

[Operation Example 1]
FIG. 4A is a flowchart showing the control contents according to the operation example 1 of the game system 1, and FIG. 4B is a schematic diagram for explaining the operation example 1. In this operation example 1, a mode in which the zoom rate of the virtual camera is continuously changed according to the displacement amount of the first operation unit 251 will be described.

  As shown in FIG. 4A, the game system 1 determines whether or not the first operation unit 251 has been operated by the user (step S1). When operated (step S1: YES), the zoom rate of the virtual camera is continuously changed according to the continuous change of the displacement amount of the first operation unit 251 (step S2).

  More specifically, in this game, a range in which the first operation unit 251 is physically and continuously displaced is associated with a range in which the zoom rate of the virtual camera is continuously changed. A unique zoom ratio is assigned to an arbitrary displacement amount of the first operation unit 251. Specifically, the zoom rate of the virtual camera is set to increase as the displacement amount of the first operation unit 251 increases. Therefore, when the user operates the first operation unit 251 as shown in FIG. 4B, a game image shot at a zoom rate corresponding to the operation amount (displacement amount) is displayed on the display 19.

  Thereby, the user can arbitrarily change the zoom rate of the virtual camera only by changing the displacement amount of the first operation unit 251. Therefore, even when the zoom ratio is greatly changed, the zoom ratio can be changed intuitively and quickly without spending time, for example, when the operation unit is long-pressed. Further, it is possible to further change the zoom ratio after the change only by changing the physical displacement amount of the first operation unit 251.

[Operation example 2]
FIG. 5A is a flowchart showing the control contents according to the operation example 2 of the game system 1, and FIG. 5B is a schematic diagram for explaining the operation example 2. In this operation example 2, a mode in which the zoom rate and the collection rate at the time of shooting are continuously changed according to the displacement amount of the first operation unit 251 will be described.

  The contents of steps S11 to S12 shown in FIG. 5A are the same as the contents of steps S1 to S2 described in the first operation example. In the operation example 2, following step S12, it is determined whether or not the user has operated the third operation unit 253 that causes the player character to execute shooting (step S13). When the user depresses the third operation unit 253, the game system 1 determines that the third operation unit 253 has been operated (step S13: YES). Then, the bullet collection rate (the degree of dispersion of the arrival points of the ejected bullets) is determined according to the displacement amount (operation position) of the first operation unit 251 when the third operation unit 253 is operated (step S14). The shooting based on the collection rate is executed (step S15).

  In this game, the range in which the first operation unit 251 is continuously displaced is associated with a range in which the rate of change in shooting is changed in addition to a range in which the zoom rate is changed. As for the bullet collection rate, a specific bullet collection rate is assigned to an arbitrary displacement amount of the first operation unit 251. Specifically, the collection rate is set to increase as the displacement amount of the first operation unit 251 increases. The zoom rate is set in the same manner as in the first operation example. Therefore, as shown in FIG. 5B, when the user depresses the third operation unit 253, a bullet is ejected based on the bullet collection rate corresponding to the displacement amount (operation position) of the first operation unit 251 at that time. The When the zoom ratio is increased by operating the first operation unit 251, the bullet collection rate increases, and when the zoom ratio is decreased, the bullet collection rate decreases. In FIG. 5B, the range where the landing points are scattered is displayed as a dashed virtual circle 50 in the game image in order to schematically show the level of the bullet collection rate. The larger the virtual circle 50 is, the lower the collecting rate is, and the smaller the virtual circle 50 is, the higher the collecting rate is.

  Thereby, the collection rate at the time of shooting can be arbitrarily changed by an intuitive and quick operation of changing the displacement amount of the first operation unit 251. Further, by changing the collection rate together with the zoom rate, it is possible to realize shooting at a collection rate suitable for an arbitrary zoom rate. For example, it is assumed that the displacement amount of the first operation unit 251 is reduced and the third operation unit 253 is pressed. In this case, since the zoom rate is small (the angle of view is wide) and the collection rate is low, it is suitable for shooting over a wide range. Further, it is assumed that the displacement amount of the first operation unit 251 is increased and the third operation unit 253 is pressed. In this case, since the zoom ratio is large (the angle of view is narrow) and the bullet collection ratio is high, this is suitable for accurately shooting a small target.

[Operation Example 3]
FIG. 6 is a flowchart showing the control content according to the operation example 3 of the game system 1, and FIG. 7 is a schematic diagram for explaining the operation example 3. In this operation example 3, when the second operation unit 252 is operated, the aiming mark displayed in the game image is moved, and the direction of the virtual camera is also moved following this. Further, the tracking mode of the virtual camera is changed according to the displacement amount of the first operation unit 251 when the second operation unit 252 is operated. Details will be described below.

  The contents of steps S21 to S22 shown in FIG. 6 are the same as the contents of steps S1 to S2 described in the first operation example. In Operation Example 3, subsequent to step S22, it is determined whether or not the stick-type second operation unit 252 has been operated by the user in order to move the aim mark in the game image (step S23). That is, as shown in FIG. 7, an aiming mark 51 for assisting shooting is displayed near the center of the game image displayed on the display 19. The user can move the aiming mark 51 in a direction corresponding to the tilt direction in the virtual game space by tilting the second operation unit 252.

  When it is determined that the second operation unit 252 has been operated (step S23: YES), the predetermined play area 52 is included so as to include the aiming mark 51 according to the displacement amount (operation position) of the first operation unit 251 at that time. It is set in the game image (step S24). The play area 52 is set as an area in which only the aiming mark 51 is moved while fixing the orientation of the virtual camera when the second operation unit 252 is operated. Further, the play area 52 is set such that the occupied area with respect to the game image (or the display area of the display 19) is enlarged or reduced according to the displacement amount of the first operation unit 251. In this game, the play area 52 is larger as the displacement amount of the first operation unit 251 is larger (the zoom ratio is larger), and the play area 52 is smaller as the displacement amount is smaller (the zoom ratio is smaller). The deformation of the play area 52 when the first operation unit 251 is changed may be continuous or may be changed stepwise. When the first operation unit 251 is not operated (displacement amount: zero), the play area 52 does not substantially exist. Further, such a play area 52 does not need to be displayed on the game image and visually recognized by the user, but in FIG. 7, for convenience, it is indicated by a rectangular broken line.

  Next, based on the operation of the second operation unit 252 by the user, the movement destination of the aiming mark 51 in the game image is acquired (step S25). More specifically, when the aiming mark 51 is moved in accordance with the operation of the second operation unit 252 with the orientation of the virtual camera unchanged, the aiming mark 51 (for example, its center point) is displayed in the game. Get where it comes in the image. Then, it is determined whether or not the movement destination is within the play area 52 (step S26). If the destination is within the play area 52 (step S26: YES), only the aiming mark 51 is moved while the orientation of the virtual camera is fixed (step S27). On the other hand, when the movement destination is outside the play area 52 (step S26: NO), the direction of the virtual camera is caused to follow as the aim mark 51 is moved (step S28). That is, in step S28, the play area 52 is caused to follow the aiming mark 51 by following the direction of the virtual camera so that the aiming mark 51 does not go out of the play area 52. The game system 1 executes such processing for each frame. Note that “moving the play area 52 following the aiming mark 51” includes a mode in which the aiming mark 51 and the play area 52 move together as a unit.

  Thereby, the play area 52 in which the virtual camera is fixed and only the aiming mark 51 is moved can be enlarged / reduced according to the zoom rate of the virtual camera. In this game, since the play area 52 is small when the zoom rate is small, the direction of the virtual camera can be changed with high responsiveness to the operation of the second operation unit 252. Accordingly, it is possible to quickly view a wide range in the virtual game space. On the other hand, since the play area 52 is large when the zoom rate is large, only the aiming mark 51 can be moved with the game image fixed. Therefore, the aiming mark 51 can be easily aligned with the target, and accurate shooting can be performed.

(Modification 1)
While the player character opens the door and moves to the other side, that is, when the door is in a half-open state, the player character is directed to the posture of the player character or beyond the door according to the displacement amount of the first operation unit 251. The zoom rate of the virtual camera may be continuously changed. In other words, according to the operation amount of the second operation unit 252, the player character is advanced stepwise or steplessly from the near side of the shield (door, fence, etc.) to the far side. Then, when the first operation unit 251 is operated in the middle, the posture of the player character and / or the zoom rate of the virtual camera may be continuously changed according to the amount of displacement.

  For example, the player character is moved to open the door in accordance with the operation of the stick-type second operation unit 252. At this time, the position of the player character and the opening degree of the door corresponding to the position of the player character are multi-staged in advance while changing from the front side of the door to the other side without selectively changing the door fully closed or fully open. (Or stepless). That is, according to an operation on the second operation unit 252, an arbitrary door opening degree and a corresponding position and posture of the player character can be realized. When the first operation unit 251 is operated while the door is being opened, the posture of the player character or the zoom rate of the virtual camera is changed according to the amount of displacement. For example, as the amount of displacement of the first operation unit 251 increases, the player character in front of the door exposes his head beyond the door. Along with this, the zoom rate of the virtual camera facing beyond the door may be increased.

  Thus, when the door is opened as desired by the user, the player character's head can be exposed beyond the door by the amount desired by the user. At the same time, by increasing the zoom ratio of the virtual camera, it is possible to view the other side of the door more widely as the exposure amount of the player character's head increases. As described above, when it is desired to confirm the other side beyond the obstacle provided in the virtual game space, the user can visually recognize the aspect in a desired manner.

  Note that the change of the posture of the player character when the first operation unit 251 is operated can be realized by a known animation or blend technique.

(Modification 2)
Depending on the amount of displacement of the stick-type first operation unit 251, the continuous firing cycle (continuous firing speed) of the bullet at the time of shooting may be continuously changed. For example, if the pressing operation on the on / off type third operation unit 253 is maintained, bullets are ejected in a predetermined cycle. When the first operation unit 251 is operated in this state, bullets are fired in a shorter cycle as the displacement amount increases. Thereby, the user can arbitrarily change the continuous firing cycle according to the situation. For example, when an enemy character suddenly appears in front of the eyes, the displacement amount of the first operation unit 251 can be increased, and a large amount of bullets can be driven toward the enemy character in a short time. Alternatively, when there is a limit to the total number of bullets that can be used, if the remaining number of bullets decreases, the continuous firing cycle can be lengthened to avoid running out of bullets.

  In addition, when the player character uses a weapon that injects an object to be injected over a relatively wide range, such as a shot gun, the injection range is continuously changed in accordance with the displacement amount of the first operation unit 251. May be. For example, the injection range may be expanded as the displacement amount of the first operation unit 251 increases.

  In the above, the volume switch type first operation unit 251 is exemplified as the “first operation unit” according to the present invention, but the present invention is not limited to this. For example, a system that progresses a game based on a user's movement detected by a camera or the like, such as KINECT (registered trademark), is known. In such a system, the operating user is the “first operation unit”, and the means for detecting the user's movement corresponds to the “first operation acquisition means” according to the present invention.

  The present invention is applied to a game program and a game system that realize a game in which a virtual camera that captures a virtual game space can be adjusted to a zoom rate desired by the user and the user can intuitively and quickly adjust the zoom rate. be able to.

1 game system 2 game device 10 CPU (computer)
24 controller 25 operation unit 251 first operation unit 252 second operation unit 253 third operation unit 30a game program 30b game data 40 game space generation unit 41 character control unit 41a firearm injection unit (injection means)
42 game image generation unit (game image generation means)
43 Camera control unit (virtual camera control means)
44 operation acquisition unit 44a first operation acquisition unit (first operation acquisition means)
44b 2nd operation acquisition part (2nd operation acquisition means)
44c 3rd operation acquisition part (3rd operation acquisition means)
45 Game Progress Control Unit 51 Aiming Mark 52 Play Area

Claims (7)

Computer
Virtual camera control means for controlling a virtual camera for photographing a three-dimensional virtual game space;
Game image generation means for generating a game image based on the captured image ;
First operation acquisition means for acquiring a physical and continuous displacement amount of a first operation unit operated by a user;
Third operation acquisition means for acquiring an operation to the on / off-type third operation unit by the user, and
Injecting means for injecting an object to be injected in a direction in which the virtual camera is directed in the virtual game space,
Function as
The virtual camera control means, in response to continuous change in the displacement of the first operating unit, the continuously changing the zoom factor of the virtual camera,
When the operation to the third operation part is maintained, the injection means injects the object to be injected in a predetermined cycle. When the first operation part is operated in this state, the displacement amount of the first operation part is A game program in which the injection cycle of the object is shortened as the number increases . Causing the computer to function as second operation acquisition means for acquiring an operation to the second operation unit by a user;
The game image generation means displays an aiming mark in the game image and moves the aiming mark in accordance with an operation to the second operation unit by a user,
The virtual camera control means changes the orientation of the virtual camera following the aiming mark when the second operation unit is operated, and the first operation unit when the second operation unit is operated. The game program according to claim 1, wherein the follow-up mode is changed in accordance with the amount of displacement. The virtual camera control means includes
A predetermined play area is set in the game image so as to include the aiming mark,
When the movement destination of the aiming mark by the operation of the second operation unit is within the play area, the aiming mark is moved while fixing the orientation of the virtual camera,
When the movement destination of the aiming mark by the operation of the second operation unit is outside the play area, the direction of the virtual camera is made to follow along with the movement of the aiming mark,
The game program according to claim 2, wherein the play area is expanded or contracted continuously or stepwise according to a displacement amount of the first operation unit.   The game program according to claim 3, wherein the virtual camera control unit increases the zoom rate of the virtual camera and enlarges the play area as the displacement amount of the first operation unit increases. Before Symbol injection means, in response to said displacement of the first operating unit, the continuously changing the current bullet ratio indicating a degree scattered the arrival point of the projectile, according to claim 1 Game program.   The game program according to claim 1, wherein the first operation unit includes an operation element biased in a predetermined direction.   A game system comprising: a program storage unit that stores the game program according to claim 1; and a computer that executes the program stored in the program storage unit.

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