JP4891297B2 - GAME PROGRAM, GAME DEVICE, AND GAME CONTROL METHOD - Google Patents

Description

The present invention relates to a game program, a game device, and a game control method for applying an action to a moving object moving in a virtual three-dimensional space using an action object.

  Conventionally, a baseball game (hereinafter, referred to as a first baseball game) is known in which a ball object moving in a virtual three-dimensional space is positioned with a sighting object to determine the hit position of the ball object by a bat. . In such a baseball game, the player moves the aiming object by operating, for example, a cross key of the operation unit.

  As an example of the first baseball game system, an operation unit (controller) is connected to a monitor unit (such as a television) via a game machine (control unit) in a wired manner. There were restrictions on posture. As another example, there is a portable game machine in which a monitor and an operation unit are integrated in the game machine body, but this is based on the premise that the game is played by individuals, for example, together with friends and family members. It is not something you can enjoy.

On the other hand, in recent years, a baseball game (hereinafter referred to as a baseball game) in which a ball object moving in a virtual three-dimensional space is shot by assuming that an operation unit including an acceleration sensor is a bat and the player swings the operation unit itself like a bat. A second baseball game) is known (for example, Patent Document 1). In the case of this game, the operation unit (controller) is wirelessly connected to the game machine (control unit) and the monitor unit (television etc.), and the degree of freedom of the player's game position and the like is high. A plurality of people can enjoy the game without occupying the monitor unit.
JP 2007-167531 A

  However, as described above, the conventional second baseball game is such that the operation unit equipped with the acceleration sensor is regarded as a bat and performs a swinging operation, etc., and there is a problem that it is difficult for beginners to properly hit the ball. . Therefore, as a system for easily performing the batting operation while taking advantage of the second baseball game, the operation unit including the acceleration sensor is not regarded as a bat, but a swing operation is performed, and the tip of the operation unit is moved. Thus, a configuration is conceivable in which a hit is made by aligning the aiming object on the monitor with the ball and pressing a predetermined switch in that state. However, in this case, since the aim is aimed at the ball in a state where the operation unit provided with the acceleration sensor is held by hand, it may be difficult to aim at the target itself due to fine hand movement. Here, it is generally not easy to move the object displayed on the screen by moving the operation unit itself including the acceleration sensor.

  Therefore, simply adopting the configuration in which the aiming object is moved by the operation unit including the acceleration sensor may cause the operation difficulty to be excessive, and the game may not be interesting.

An object of the present invention is to provide a game program, a game device, and a game control method for suppressing an excessively difficult operation in a game that operates an operation unit including an acceleration sensor.

(1) A game program according to the present invention is a game program for causing a computer to execute a game in which a moving object that moves in a virtual three-dimensional space is acted on using an operation object. Storage means for storing in advance a sighting object displayed on the display unit so that the player can specify the position at which the moving object acts on the moving body object, and the operation unit itself is moved by the player from the operation unit including the acceleration sensor. Acquisition means for acquiring a first operation signal output by the operation and a second operation signal output by an operation for determining a timing at which the player exerts an action on the moving object; , based on the first operation signal acquired by the acquisition unit, the irradiation Sighting object display control means for displaying an object as an action area on the display unit; an afterimage display control means for displaying an afterimage of the aiming object previously displayed by the aiming object display control means as an action area on the display part; When the acquisition means receives the second instruction signal, if the moving object passes through any of the action areas, the computer is used as action determination means that determines that the operation object has acted on the moving object. It is made to function.

  A game device according to the present invention is a game device that uses a manipulation object to act on a moving object that moves in a virtual three-dimensional space, and includes an operation unit including an acceleration sensor, a display unit, and the operation described above. The first operation signal output when the operation unit itself is moved by the player, and the first operation signal output when the player performs an operation for determining the timing to act on the moving object. Acquisition means for acquiring the operation signal of 2; storage means for preliminarily storing the aiming object displayed on the display unit for the player to specify a position where the operation object acts on the moving object; Based on the first operation signal acquired by the acquisition means, the display unit with the aiming object as an action area Aiming object display control means for displaying, an afterimage display control means for displaying an afterimage of the aiming object previously displayed by the aiming object display control means on the display unit as an action area, and the acquisition means for the second instruction signal When the mobile object passes through any of the action areas when receiving the action, action determining means for determining that the operation object has acted on the mobile object is provided.

A game control method according to the present invention is a game control method for applying an action to a moving object that moves in a virtual three-dimensional space by using an operation object. The computer controls the operation object to the moving object. Storage means for storing in advance a sighting object displayed on the display unit for the player to specify the position to be acted on, and the computer is moved by the player from the operation unit including the acceleration sensor. An acquisition step of acquiring a first operation signal to be output and a second operation signal to be output by an operation for determining a timing at which the player exerts an action on the moving object; , Based on the first operation signal acquired in the acquisition step. And aim object display control step of displaying on the display unit of the object as a working area, the computer, afterimage display control to display an afterimage of the past is displayed the aim object in the aim object display control step on the display unit as a working area And when the moving object passes through one of the action areas when the second instruction signal is received in the obtaining step , the operation object acts on the moving object. And an action determining step for determining.

  According to these configurations, in addition to the aiming object, an afterimage of the aiming object displayed in the past is also displayed on the display unit as the action area. Then, when the player performs an operation for determining the timing of applying an action to the moving object, and the moving object passes through one of the action areas, the action is given to the moving object by the operating object. Determined.

  That is, even if the player fails to align the aiming object with the moving object, the player determines that the moving object can be affected if the afterimage of the aiming object is aligned with the moving object. Is done.

  Therefore, the action area is enlarged as compared with the configuration in which only the aiming object is positioned as the action area and aligned with the moving object. As a result, the player can easily act on the moving object, the operation is not excessive, and the fun of the game can be increased.

  For example, consider the case where this configuration is applied to a baseball game. As a batting operation system, instead of performing a swing motion etc., assuming that the operation unit equipped with the acceleration sensor is a bat, the aiming object on the monitor is adjusted to the ball by moving the tip of the operation unit. Although it can be configured that hitting is performed by pressing a predetermined switch, in this case, the player places the sighting object on the ball while holding the operation unit equipped with an acceleration sensor with a hand. It is also assumed that difficulty in aiming itself due to hand movements. However, according to the configuration of the present application, since the afterimage of the aiming object is also used as the hitting area, the movement of the camera shake is absorbed, and excessively difficult aiming is eliminated, so that playability as a game can be ensured. .

  (2) The computer further functions as action power setting means for setting the action power of the operation object to the moving object larger as the action area through which the moving object has passed is a new action area of the display time. It is preferable.

  According to this configuration, a player who is better at aligning the aiming object with the moving object can apply more power to the moving object, and can further increase the fun of the game.

  (3) When the passing position of the moving object of the moving object belongs to a plurality of action areas, the action power setting means selects the action area having the latest display time from the plurality of action areas. It is preferable to determine that the object has passed and set the action power based on the action area.

  According to this configuration, when the passing position of the action area of the moving object belongs to a plurality of action areas, the moving object is determined to have passed the action area having the latest display time. Therefore, it is possible to simplify the setting process of the working power.

  (4) It is preferable that the action power setting means sets the action power to be smaller as the passing position of the moving object in the action area through which the moving object has passed moves away from the center of the action area.

  According to this configuration, the player operates the aiming object so that the moving object passes through the center of the aiming object, and the fun of the game can be further increased.

  (5) The aiming object display control means displays the aiming object at regular time intervals, and the afterimage display control means displays a predetermined number of aiming objects as an afterimage from the current aiming object to the past. Is preferred.

  According to this configuration, since the number of afterimages of the aiming object that is the action area is limited to a certain number, it is possible to prevent the game from becoming too easy.

  (6) The afterimage display control means may increase the number of display of the action area as the predetermined ability value for the action character that acts on the moving object using the operation object is higher. preferable.

  According to this configuration, when an action character having a high ability value is used, the number of action areas displayed is increased, and an action can be more easily applied to a moving object.

  (7) The aiming object display control means increases the moving speed of the aiming object as the predetermined ability value for the action character that acts on the moving object using the operation object is higher. Is preferred.

  According to this configuration, when an action character having a high ability value is used, the moving speed of the aiming object is increased, so that the action can be easily applied to the moving object.

  (8) A computer further functions as swing strength setting means for setting swing strength of the operation object by an action character that acts on the moving object using the operation object, and the aiming object display control means It is preferable to set the action area smaller as the strength is higher.

  According to this configuration, since the action area becomes smaller as the swing strength increases, it becomes more difficult to act on the moving object. On the other hand, the smaller the swing strength, the larger the action area, so that it becomes easier to act on the moving object. Therefore, the player can select the swing strength according to his / her operation ability, and the game performance can be improved.

  According to the present invention, the action area is enlarged as compared with the configuration in which only the aiming object is used as the action area and aligned with the moving object. As a result, the player can easily act on the moving object, the operation is not excessive, and the fun of the game can be increased.

  Hereinafter, a game device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a game device according to an embodiment of the present invention. In the following description, a home video game apparatus configured by connecting a home video game machine to a home television will be described as an example of the game apparatus, but the present invention is not particularly limited to this example. The present invention can be similarly applied to a commercial video game apparatus having an integrated monitor, a personal computer functioning as a video game apparatus by executing the game program according to the present invention, and the like.

  The video game apparatus shown in FIG. 1 includes a home game machine 100 and a home television 200. The home-use game machine 100 is loaded with a computer-readable recording medium 300 on which a game program is recorded, and the game program is appropriately read to execute the game.

  A consumer game machine 100 includes a CPU (Central Processing Unit) 1, a bus line 2, a graphics data generation processor 3, an interface circuit (I / F) 4, a main memory 5, a ROM (Read Only Memory) 6, and an expansion circuit 7. , Parallel port 8, serial port 9, drawing processor 10, audio processor 11, decoder 12, interface circuit 13, buffers 14 to 16, recording medium drive 17, memory 18, and controller 19. The home television 200 includes a television monitor 21, an amplifier circuit 22 and a speaker 23.

  The CPU 1 is connected to the bus line 2 and the graphics data generation processor 3. The bus line 2 includes an address bus, a data bus, a control bus, and the like. The CPU 1, interface circuit 4, main memory 5, ROM 6, decompression circuit 7, parallel port 8, serial port 9, drawing processor 10, audio processor 11, decoder 12 And the interface circuit 13 are connected to each other.

  The drawing processor 10 is connected to the buffer 14. The audio processor 11 is connected to the buffer 15 and the amplifier circuit 22. The decoder 12 is connected to the buffer 16 and the recording medium drive 17. The interface circuit 13 is connected to the memory 18 and the controller 19.

  The television monitor 21 of the home television 200 is connected to the drawing processor 10. The speaker 23 is connected to the amplifier circuit 22. In the case of an arcade video game apparatus, the television monitor 21, the amplifier circuit 22, and the speaker 23 may be housed in a single casing together with each block constituting the consumer game machine 100.

  When the video game apparatus is configured with a personal computer, a workstation, or the like as a core, the television monitor 21 or the like corresponds to a computer display. The decompression circuit 7, the drawing processor 10, the audio processor 11, and the like correspond to a part of program data recorded on the recording medium 300 or hardware on an expansion board installed in an expansion slot of a computer. The interface circuit 4, the parallel port 8, the serial port 9, and the interface circuit 13 correspond to hardware on an expansion board mounted in an expansion slot of a computer. The buffers 14 to 16 correspond to the storage areas of the main memory 5 or the expansion memory, respectively.

  Next, each component shown in FIG. 1 will be described. The graphics data generation processor 3 serves as a coprocessor for the CPU 1. That is, the graphics data generation processor 3 performs coordinate conversion and light source calculation, for example, calculation of a fixed point format matrix or vector by parallel processing.

  The main processing performed by the graphics data generation processor 3 includes predetermined data based on the coordinate data, movement amount data, rotation amount data, and the like of each vertex in the two-dimensional or three-dimensional space of the image data supplied from the CPU 1. There are processing for obtaining address data of the processing target image on the display area and returning it to the CPU 1, processing for calculating the luminance of the image according to the distance from the virtually set light source, and the like.

  The interface circuit 4 is used for an interface of a peripheral device such as a pointing device such as a mouse or a trackball. The main memory 5 is composed of a RAM (Random Access Memory) or the like. The ROM 6 stores program data serving as an operating system for the video game apparatus. This program corresponds to a BIOS (Basic Input Output System) of a personal computer.

  The decompression circuit 7 performs decompression processing on a compressed image compressed by intra coding conforming to the MPEG (Moving Picture Experts Group) standard for moving images and the JPEG (Joint Photographic Experts Group) standard for still images. The decompression processing includes decoding processing (decoding of data encoded by VLC: Variable Length Code), inverse quantization processing, IDCT (Inverse Discrete Cosine Transform) processing, intra image restoration processing, and the like.

  The drawing processor 10 performs a drawing process on the buffer 14 based on a drawing command issued by the CPU 1 every predetermined time T (for example, T = 1/60 seconds in one frame).

  The buffer 14 is constituted by a RAM, for example, and is divided into a display area (frame buffer) and a non-display area. The display area is composed of a data development area to be displayed on the display surface of the television monitor 21. The non-display area is composed of storage areas such as data for defining a skeleton, model data for defining polygons, animation data for causing the model to move, pattern data indicating the contents of each animation, texture data, and color palette data.

  Here, the texture data is two-dimensional image data. The color palette data is data for designating a color such as texture data. The CPU 1 records these data in the non-display area of the buffer 14 in advance at a time from the recording medium 300 or in a plurality of times according to the progress of the game.

  The drawing command includes a drawing command for drawing a stereoscopic image using a polygon and a drawing command for drawing a normal two-dimensional image. Here, the polygon is a polygonal two-dimensional virtual figure, and for example, a triangle or a quadrangle is used.

  A drawing command for drawing a stereoscopic image using polygons is polygon vertex address data indicating the storage position of polygon vertex coordinate data on the display area of the buffer 14, and the storage position of the texture to be pasted on the polygon 14 on the buffer 14. Is performed on each of the color address data indicating the storage position on the buffer 14 and the color data indicating the texture brightness.

  Among the above data, the polygon vertex address data on the display area is converted by the graphics data generation processor 3 by performing coordinate conversion of the polygon vertex coordinate data in the three-dimensional space from the CPU 1 based on the movement amount data and the rotation amount data. It is replaced with polygon vertex coordinate data in two dimensions. The luminance data is determined by the graphics data generation processor 3 based on the distance from the position indicated by the polygon vertex coordinate data after the coordinate conversion from the CPU 1 to the light source virtually arranged.

  The polygon vertex address data indicates an address on the display area of the buffer 14. The drawing processor 10 performs a process of writing texture data corresponding to the display area range of the buffer 14 indicated by the three polygon vertex address data.

  An object such as a character in the game space is composed of a plurality of polygons. The CPU 1 stores the coordinate data of each polygon in the three-dimensional space in the buffer 14 in association with the corresponding skeleton vector data. When the character is moved on the display screen of the television monitor 21 by an operation of the controller 19 to be described later or when the viewpoint position where the character is viewed is changed, The following processing is performed.

  That is, the CPU 1 obtains the graphics data generation processor 3 from the three-dimensional coordinate data of the vertices of each polygon held in the non-display area of the buffer 14, the skeleton coordinates, and the rotation amount data. Polygon movement amount data and rotation amount data are given.

  The graphics data generation processor 3 sequentially obtains the three-dimensional coordinate data after moving and rotating each polygon based on the three-dimensional coordinate data of the vertex of each polygon and the movement amount data and rotation amount data of each polygon.

  Of the three-dimensional coordinate data of each polygon thus obtained, the coordinate data in the horizontal and vertical directions are supplied to the drawing processor 10 as address data on the display area of the buffer 14, that is, polygon vertex address data.

  The drawing processor 10 writes the texture data indicated by the texture address data assigned in advance on the display area of the buffer 14 indicated by the three polygon vertex address data. As a result, on the display screen of the television monitor 21, an object in which textures are pasted on a large number of polygons is displayed.

  A drawing command for drawing a normal two-dimensional image indicates vertex address data, texture address data, color palette address data indicating the storage position on the buffer 14 of color palette data indicating the color of the texture data, and luminance of the texture. This is performed on the luminance data. Among these data, the vertex address data is obtained by the coordinate conversion of the vertex coordinate data on the two-dimensional plane from the CPU 1 by the graphics data generation processor 3 based on the movement amount data and the rotation amount data from the CPU 1.

The audio processor 11 reads ADPCM (Adaptive) read from the recording medium 300.
Differential Pulse Code Modulation) data is stored in the buffer 15, and the ADPCM data stored in the buffer 15 becomes a sound source.

  Also, the audio processor 11 reads ADPCM data from the buffer 15 based on, for example, a clock signal having a frequency of 44.1 kHz. The audio processor 11 performs processing such as pitch conversion, noise addition, envelope setting, level setting, and reverb addition on the read ADPCM data.

  When the audio data read from the recording medium 300 is PCM (Pulse Code Modulation) data such as CD-DA (Compact Disk Digital Audio), the audio processor 11 converts the audio data into ADPCM data. Further, the processing for the PCM data by the program is directly performed on the main memory 5. The PCM data processed on the main memory 5 is supplied to the audio processor 11 and converted into ADPCM data. Thereafter, the various processes described above are performed, and sound is output from the speaker 23.

  As the recording medium drive 17, for example, a DVD-ROM drive, a CD-ROM drive, a hard disk drive, an optical disk drive, a flexible disk drive, a silicon disk drive, a cassette medium reader, or the like is used. In this case, as the recording medium 300, a DVD-ROM, a CD-ROM, a hard disk, an optical disk, a flexible disk, a semiconductor memory, or the like is used.

  The recording medium drive 17 reads image data, audio data, and program data from the recording medium 300 and supplies the read data to the decoder 12. The decoder 12 performs error correction processing by ECC (Error Correction Code) on the reproduced data from the recording medium drive 17 and supplies the data subjected to the error correction processing to the main memory 5 or the audio processor 11.

  For example, a card-type memory is used as the memory 18. The card type memory is used for holding various game parameters at the time of interruption, such as holding the state at the time of interruption when the game is interrupted.

  The controller 19 is an operation device used by the player to input various operation commands, and sends an operation signal corresponding to the operation of the player to the CPU 1. The controller 19 is provided with an interface circuit 191, an acceleration sensor 192, an up key 19U, a down key 19D, a left key 19L, a right key 19R, and a button 193. The interface circuit 191 includes, for example, a circuit for transmitting an infrared signal, a wireless signal, and the like. The interface circuit 191 converts an operation signal transmitted from the controller 19 into an infrared signal or a wireless signal and transmits the infrared signal or the wireless signal to the interface circuit 13.

  The acceleration sensor 192 includes a triaxial acceleration sensor, and detects each acceleration in the triaxial direction as an acceleration signal. Here, as the acceleration sensor 192, for example, an acceleration sensor such as a piezoresistive type, a capacitance type, or a magnetic sensor type can be employed.

  The up direction key 19U, the down direction key 19D, the left direction key 19L, and the right direction key 19R, for example, give the CPU 1 a command for moving a character, an object, a cursor, or the like up, down, left, or right on the screen of the television monitor 21. Used for.

  Each button and each key of the controller 19 are configured by an on / off switch that is turned on when pressed from the neutral position by an external pressing force, and that returns to the neutral position and is turned off when the pressing force is released. .

  Next, the general operation of the video game apparatus will be described. When the recording medium 300 is loaded in the recording medium drive 17, when a power switch (not shown) is turned on and the video game apparatus is turned on, the recording medium is recorded based on the operating system stored in the ROM 6. The CPU 1 instructs the recording medium drive 17 to read the game program from 300. As a result, the recording medium drive 17 reads image data, audio data, and program data from the recording medium 300. The read image data, audio data, and program data are supplied to the decoder 12, and the decoder 12 performs error correction processing on each data.

  The image data that has been subjected to error correction processing by the decoder 12 is supplied to the decompression circuit 7 via the bus line 2. The image data that has been subjected to the expansion processing described above by the expansion circuit 7 is supplied to the drawing processor 10, and is written into the non-display area of the buffer 14 by the drawing processor 10. The audio data that has been subjected to the error correction processing by the decoder 12 is written into the buffer 15 via the main memory 5 or the audio processor 11. Program data that has been subjected to error correction processing by the decoder 12 is written into the main memory 5.

  Thereafter, the CPU 1 advances the video game based on the game program stored in the main memory 5 and the content that the player instructs using the controller 19. In other words, the CPU 1 appropriately performs control of image processing, control of sound processing, control of internal processing, and the like based on content that the player instructs using the controller 19.

  As image processing control, for example, the calculation of the coordinates of each skeleton or the calculation of the vertex coordinate data of polygons from the pattern data corresponding to the animation instructed to the character, the obtained three-dimensional coordinate data and the graphics data of the viewpoint position data Supply to the generation processor 3, issue of a rendering command including address data and luminance data on the display area of the buffer 14 obtained by the graphics data generation processor 3 are performed.

  As control of audio processing, for example, issue of an audio output command to the audio processor 11, specification of level, reverb, etc. are performed. As control of the internal processing, for example, calculation according to the operation of the controller 19 is performed.

  FIG. 3 is a diagram showing an example of an image displayed on the television monitor 21 in the video game apparatus. Hereinafter, an outline of a baseball game when a baseball game is played using a video game apparatus will be described. As shown in FIG. 3, in a baseball game, a pitcher character 71 throws a ball object BL1 as a moving object, and a batter character 72 as an action character returns the ball object BL1 with a bat object 73 as an operation object. This is a baseball game that uses the bat object 73 to act on the ball object BL1.

  Here, the player moves the aiming object OB1 on the screen by moving the operation unit 41 itself, and when the ball object BL1 reaches the vicinity of the home base, the display position of the aiming object OB1 is adjusted to the ball object BL1, and the button By depressing 193, the ball object BL1 is hit back.

  Next, main functions of the video game apparatus when a baseball game is played using the video game apparatus configured as described above will be described. FIG. 2 is a main functional block diagram of the video game apparatus shown in FIG.

  As shown in FIG. 2, the video game apparatus functionally includes an operation unit 41, a program execution unit 42, a data storage unit 43, a program storage unit 44, and a display unit 45.

  The operation unit 41 includes a controller 19 and the like, and executes a program of an acceleration signal as a first operation signal detected by the acceleration sensor 192 when the operation unit 41 itself is moved by a player who is a player of the video game apparatus. To the unit 42. Here, the operation unit 41 may output an acceleration signal at regular time intervals, for example, or may output an acceleration signal when acceleration is detected by the acceleration sensor 192.

  Also, the operation unit 41 sends a batting instruction signal as a second operation signal to the program execution unit 42 when a batting command for determining batting timing is input by the player by pressing the button 193, for example. Output.

  The program storage unit 44 includes the recording medium drive 17 and the like, and includes a computer-readable recording medium 62. The recording medium 62 includes a recording medium 300 and stores a game program according to the present invention. When the game program is read from the recording medium 62 and the game program is recorded in the main memory 5, the main memory 5 functions as the program storage unit 44.

  The data storage unit 43 includes the main memory 5 and functions as the image storage unit 61. The image storage unit 61 stores in advance an aiming object displayed on the display unit 45 so that the player can specify the hit position of the ball object by the bat object.

  Furthermore, the image storage unit 61 stores various image data necessary for playing a baseball game such as a batting character, a bat object, an aiming object, a baseball field background image, a pitcher character, and a fielder character. Here, as the image data of the background image of the baseball field, for example, image data created in advance by rendering a virtual three-dimensional model created in advance in a virtual three-dimensional space from a predetermined viewpoint can be adopted. .

  FIG. 4 is a diagram illustrating an example of the aiming object displayed on the display unit 45. As shown in FIG. 4, the aiming object OB <b> 1 has a circular shape, and an area inside the circle becomes a hitting area D <b> 1 that is an example of an action area. The aiming object OB1 is a sweet spot where the center O1 can strike back the ball object with the maximum power.

  Therefore, in the present embodiment, in order to clearly show the sweet spot to the player, two lines L1 and L2 orthogonal to the center O1 are drawn inside the aiming object OB1. In FIG. 4, the line L1 is parallel to the vertical direction of the screen, and the line L2 is parallel to the horizontal direction of the screen. However, this is an example, and the lines L1 and L2 are orthogonal at the center O1. The directions of the lines L1 and L2 may be any direction.

  Further, the sweet spot may be shifted from the center O1 according to the characteristics of the batter character. In this case, the lines L1 and L2 may be drawn so as to intersect at the sweet spot. The aiming object OB1 only needs to have a shape represented by a closed curve. For example, an elliptical shape or a polygon such as a quadrangle or a triangle may be employed.

  A rectangular frame W1 shown in FIG. 4 indicates a strike zone. That is, when the ball object passes through the frame W1, the strike is made, and when the ball object passes outside the frame W1, the ball is made. By displaying the frame W1 in this way, it is possible to clearly indicate the strike zone to the player, and it is possible to provide a judgment material for selecting whether or not to return the ball object to the player.

  Returning to FIG. 2, the program execution unit 42 includes a CPU 1, a graphics data generation processor 3, a drawing processor 10, and the like. The CPU 1 and the like execute a game program stored in the main memory 5 to obtain an acquisition unit. An acquisition unit 51, an aiming object display control unit 52 as an aiming object display control unit, an afterimage display control unit 53 as an afterimage display control unit, an impact determination unit 54 as an action determination unit, and an impact power setting unit as an action power setting unit 55 and a swing strength setting unit 56 as swing strength setting means.

  The acquisition unit 51 acquires the acceleration signal and the hit instruction signal output from the operation unit 41.

  The aiming object display control unit 52 displays the aiming object on the display unit 45 as an impact area based on the acceleration signal acquired by the acquiring unit 51.

  Here, the aiming object display control unit 52 calculates a movement amount indicating the relative movement amount of the operation unit 41 by, for example, integrating the acceleration signal acquired by the acquisition unit 51 twice, and calculates the calculated movement. The amount of movement of the aiming object on the screen is calculated from the amount, and the aiming object is moved.

  Specifically, the following processing is performed. Here, the acceleration signal continuously output from the operation unit 41 and continuously acquired by the acquisition unit 51 is expressed as G (gx, gy, gz, t). Here, gx represents an x-axis component acceleration signal, gy represents a y-axis component acceleration signal, gz represents a z-axis component acceleration signal, and t represents an acceleration signal acquisition time. Here, for example, a clock function provided in the consumer game machine 100 may be used to measure the acquisition time. Note that the z-axis indicates, for example, the vertical direction of the three-dimensional real space, and the x-axis, y-axis, and z-axis are orthogonal to each other.

First, the acceleration signal _G i by the acquisition unit 51 at a certain time _{t i (gx i, gy i} , gz i, t i) is acquired, the acceleration signal _G i _{+ 1} by the acquisition unit 51 at time _{t i + 1 (gx i +} 1, gy i + 1 , Gz _{i + 1} , t _{i + 1} ) are acquired. Then, the aiming object display control unit 52 performs (G _{i + 1} −G _i ) · dt, that is, (gx _{i + 1} −gx _i , gy _{i + 1} −gy _i , gz _{i + 1} −gz _i ) · (t _{i + 1} −t _i ). The velocity data V _i (vx _i , vy _i , vz _i , t _i ) of the operation unit 41 is calculated. Thereby, the speed data of the operation unit 41 at the time t _i is obtained.

Similarly, the aiming object display control unit 52 calculates speed data V _{i + 1} (vx _{i + 1} , vy _{i + 1} , vz _{i + 1} , t _{i + 1} ) from (G _{i + 2} −G _{i + 1} ) · dt.

Then, the aiming object display control unit 52 performs (V _{i + 1} −V _i ) · dt, that is, (vx _{i + 1} −vx _i , vy _{i + 1} −by _i , vz _{i + 1} −vz _i ) · (t _{i + 1} −t _i ). , The movement amount ΔX _i (x _i , y _i , z _i ) is calculated. Thereby, the movement amount in the three-dimensional real space of the operation unit 41 from time t _i to time t _{i + 1} can be obtained.

Similarly, the aiming object display control unit 52 calculates the amount of movement of the operation unit 41 in the three-dimensional real space from time t _{i + 1} to time t _{i + 2} by (V _{i + 2} −V _{i + 1} ) · dt. The aiming object display control unit 52 can obtain the amount of movement ΔX _i in the real space of the operation unit 41 at time dt by repeating this process.

Next, the aiming object display control unit 52 calculates a movement amount ΔX _i ′ in the virtual three-dimensional space from the obtained movement amount ΔX _i . In this case, the aiming object display control unit 52 may calculate ΔX _i ′ using, for example, a predetermined mapping function f that associates the three-dimensional real space with the virtual three-dimensional space.

Then, using the obtained movement amount ΔX _i ′ (Δx _i ′, Δy _i ′, Δz _i ′) and the position X _i ′ (x _{i + 1} ′, y _{i + 1} ′) of the aiming object at time t _i , The position X _{i + 1} ′ of the aiming object at time t _{i + 1} is obtained.

Specifically, the position X _{i + 1} ′ of the aiming object is obtained from X _{i + 1} ′ (x _{i + 1} ′, y _{i + 1} ′) = (x _i ′ + Δx _i ′, y _i ′ + Δy _i ′).

  FIG. 5 is a schematic diagram showing the position of the aiming object in the virtual three-dimensional space. Note that y ′ shown in FIG. 5 indicates a direction parallel to a straight line L3 connecting the center O2 of the pitcher mound and the center O3 of the home base HB in the virtual three-dimensional space, z ′ indicates a vertical direction, and x ′ indicates The direction orthogonal to the vertical direction and the straight line L3 is shown.

In the present embodiment, the aiming object OB1 moves on a plane SF1 that passes through the center O3 and is parallel to the x′-z ′ plane, for example. Therefore, the aiming object display control unit 52 determines the position X _i ′ of the aiming object OB1 using Δx _i ′ and Δy _i ′ out of the movement amounts ΔX _i ′ (Δx _i ′, Δy _i ′, Δz _i ′). Calculated. Note that the afterimage of the aiming object OB1 is also located on the plane SF1 like the aiming object OB1.

  However, this is an example, and the aiming object OB1 may be moved on a plane slightly shifted in the y ′ direction from the plane SF1.

As the initial position X ₁ ′ of the aiming object OB1, for example, a point P1 that is on the straight line L4 parallel to z ′ passing through the center O3 and that is the center position of the strike zone can be employed. The aiming object display control unit 52 then sets the aiming object OB1 to the initial position X ₁ ′ when the acquisition unit 51 first acquires an acceleration signal after the player inputs a pitching command to the operation unit 41, for example. Show it.

Alternatively, the aiming object display control unit 52, for example, after the power is turned on, when the acquisition unit 51 first acquires an acceleration signal, or after the acquisition interval of the acceleration signal by the acquisition unit 51 becomes a certain time or more, Is obtained again, the aiming object OB1 may be displayed at the initial position X ₁ ′. Further, a point other than the point P1, for example, a point such as the center of the screen of the display unit 45 may be employed as the initial position X ₁ ′.

  The aiming object display control unit 52 repeatedly executes the above processing to move and display the aiming object on the display unit 45.

  Here, the aiming object display control unit 52 displays the aiming object at regular time intervals. As the fixed time interval, for example, a time of 3 frames, that is, a value of about 3/60 seconds (0.5 seconds) can be adopted, but is not limited to this, and is shorter than 0.5 seconds. It may be long or long.

  The afterimage display control unit 53 displays an afterimage of the aiming object displayed in the past by the aiming object display control unit 52 on the display unit 45 as an impact area. 6 and 7 show afterimages of the aiming object displayed by the afterimage display control unit 53. FIG. The aiming object OB1 shown in FIGS. 6 and 7 is the latest aiming object displayed by the aiming object display control unit 52, and the afterimages ZN1 and ZN2 are afterimages of the aiming object OB1 displayed by the afterimage display control unit 53. is there.

  Here, the afterimage ZN1 is an aiming object displayed immediately before the aiming object OB1 by the aiming object display control unit 52, and the afterimage ZN2 is displayed before the aiming object OB1 by the aiming object display control unit 52. Aiming object.

  Then, the afterimage display control unit 53 displays the afterimages ZN1 and ZN2 as the hit areas D2 and D3. That is, in addition to the hit area D1 by the aiming object OB1 currently displayed, the hit areas D2 and D3 by the afterimages ZN1 and ZN2 are also displayed as the hit areas. Therefore, if the ball object passes through any one of the hit areas, the player can hit the ball object. Therefore, the hitting area is increased, and it is possible to suppress a decrease in the fun of the game due to the difficulty in positioning the sighting object OB1 by moving the operation unit 41 itself, thereby increasing the fun of the game.

  In the present embodiment, the afterimages ZN1 and ZN2 have the same shape as the aiming object, but the lines L1 and L2 are omitted in order to distinguish from the aiming object OB1, and the brightness of the outer frame Is lower than the aiming object OB1.

  Further, the afterimage display control unit 53 displays a predetermined number of aiming objects as afterimages from the current aiming object OB1 displayed by the aiming object display control unit 52 retroactively. Here, as the predetermined number, a value appropriately set according to the difficulty level of the game can be adopted.

  Further, the aiming object display control unit 52 may increase the number of hit areas displayed as the ability value predetermined for the hit character who hits using the bat object is higher. Here, as the ability value of the batting character, for example, the batting rate of the batting character can be adopted.

  FIG. 8 is a diagram showing a batting area displayed on the display unit 45 in a batting character having a high batting rate. FIG. 9 is a diagram illustrating a batting area displayed on the display unit 45 in a batting character having a batting rate lower than that in FIG. 8.

  As shown in FIG. 8, in the hit character with a high batting rate, seven hit areas D1 to D7 are displayed, whereas in the hit character with a low hit rate, as shown in FIG. Only the striking areas D1 to D4 are displayed. That is, in FIG. 9, the afterimage of the aiming object displayed in the past than in FIG. 8 is displayed.

  In this way, in a batting character with a high batting rate, the number of displayed afterimages increases and the batting area increases, and the player can more easily hit the ball object. As a result, the baseball game can be made closer to an actual baseball game, and the fun of the game can be further increased.

  Moreover, the aiming object display control unit 52 may increase the moving speed of the aiming object as the ability value predetermined for the batting character is higher. Here, examples of the ability value include a batting rate, a good hitting course, and a good ball type.

  The hitting course includes an inner angle, an outer angle, a higher angle, a lower angle, and the like. For example, in a batting character that is good at an inner angle, the movement speed when the aiming object OB1 moves within the area of the predetermined inner angle is set to another area. What is necessary is just to make it faster than the moving speed when moving inside.

  Examples of the ball type include a changing ball such as a curve, a shoot, and a fork, and a straight ball. For a hitting character who is good at a curve, if the ball object's ball type is a curve, the moving speed of the aiming object OB1 is set to other values. What is necessary is just to make it faster than the moving speed of the ball type.

  When changing the moving speed of the aiming object OB1 in accordance with the batting rate, the moving speed is maximized for a batting character with a batting ratio of 30%, and the batting ratio is as follows: It may be set in a stepwise manner so that the moving speed decreases as the speed decreases, or the moving speed may be decreased continuously as the batting rate decreases.

Note that the aiming object display control unit 52, for example, multiplies the movement amount ΔX _i ′ in the virtual three-dimensional space by a coefficient determined in advance according to the moving speed of the aiming object OB1, thereby moving the aiming object OB1. Change the speed.

  FIG. 10 is an explanatory diagram of the moving speed of the aiming object. (A) shows the aiming object before the movement, and (b) shows the aiming object after the movement.

  In the state of FIG. 10A, when the operation unit 41 is moved diagonally downward to the right, the aiming object OB1 moves diagonally downward to the right as shown in FIG. 10B. At this time, in the batting character having a high batting rate, the moving time of the aiming object OB1 is shorter than that of the batting character having a low batting rate. Therefore, when the player uses a batting character with a high batting rate, the player can quickly position the ball object on the aiming object OB1.

  Returning to FIG. 2, when the acquisition unit 51 acquires the hit instruction signal, the hit determination unit 54 determines that the ball object has been hit by the bat object when the ball object passes through one of the hit areas. FIG. 11 is an explanatory diagram of a hit determination process executed by the hit determination unit 54. FIG. 11 shows the virtual three-dimensional space when viewed from the x′-axis direction.

  Specifically, as shown in FIG. 11, when the acquisition unit 51 acquires a hit instruction signal, the hit determination unit 54 determines whether the ball object BL1 intersects or is in contact with the hit area on the plane SF1. It is determined that the ball object BL1 has been hit by the object.

  Here, the hitting area includes a hitting area formed by an afterimage of the aiming object OB1 in addition to the hitting area formed by the aiming object OB1 as shown in FIG. And the hit | judging determination part 54 should just determine with the ball object BL1 having been hit, when the ball object BL1 crosses or touches any one hit | damage area | region among several hit areas.

  However, in this case, the difficulty level of the game becomes extremely high, and it is not interesting. Therefore, in the present embodiment, for example, when the acquisition unit 51 acquires a hit instruction signal, the y ′ component of the ball object BL1 is positioned at a distance d1 away from the plane SF1 in the −y ′ direction, and the plane SF1. The extension line of the ball object BL1 at that time intersects with any one of the striking areas on the plane SF1. In this case, it may be determined that the ball object BL1 has been hit.

  Here, as the extension line of the ball object BL1, for example, a straight line extended from the mass point G1 of the ball object in the direction of the speed of the ball object when the acquisition unit 51 acquires the hit instruction signal can be adopted.

  Alternatively, when the acquisition unit 51 acquires the hit signal, the y ′ component of the ball object BL1 exists between a position that is a distance d1 away from the plane SF1 and a position that is a distance d2 away from the plane SF1. In this case, a plane SF1 ′ that passes through the mass point G1 at that time and is parallel to the plane SF1 is set, the entire hit area on the plane SF1 is projected on the set plane SF1 ′, and any one of all the hit areas projected. When the ball object BL1 exists in one hitting area, it may be determined that the ball object BL1 has been hit.

  As d1 and d2, the same distance as the length of the y ′ component of the strike zone from the plane SF1, or a distance obtained by adding or subtracting some margin can be employed.

  Returning to FIG. 2, the hitting power setting unit 55 sets the hitting power by the bat object larger as the hitting area through which the ball object has passed is the hitting area with the new display time. Here, as the hitting power, for example, the magnitude and direction of the initial velocity of the hit ball object are employed.

  FIG. 12 is an explanatory diagram of the striking power setting process executed when the striking power setting unit 55 sets the striking power. In FIG. 12, the hitting area D1 indicates the latest hitting area, that is, the hitting area by the current aiming object OB1 displayed by the aiming object display control unit 52, and the hitting area D2 is one before the current aiming object. The striking area by the afterimage ZN1 of the aiming object displayed in FIG. 6 is shown, and the striking area D3 shows the striking area by the afterimage ZN2 of the aiming object displayed two times before the current aiming object.

  Here, α1 to α3 are associated in advance as the weighting factors of the hit areas D1 to D3. However, α1> α2> α3. Therefore, when the ball object passes through the hitting area D1, the magnitude of the initial speed of the hit ball object is multiplied by the weight coefficient α1 multiplied by the predetermined reference initial speed Vref of the hit ball object. When the ball object passes through the hitting area D2, the magnitude of the initial speed of the hit ball object is calculated by multiplying the magnitude of the reference initial speed Vref by the weighting coefficient α2, and the ball object When passing the hitting area D3, the magnitude of the initial velocity of the hit ball object is calculated by multiplying the magnitude of the reference initial velocity Vref by the weighting coefficient α3. As a result, the hitting power can be increased as the ball object passes through the new hitting area at the display time.

  On the other hand, the direction of the initial velocity of the ball object is calculated as follows. FIGS. 13A and 13B are diagrams showing the calculation process of the direction of the initial velocity of the hit ball object. FIG. 13A shows the aiming object OB1, and FIG. 13B shows the ball object BL1 immediately after hitting from the x ′ direction. (C) has shown the state which looked at ball object BL1 immediately after hit | damage from z 'direction.

  As shown in FIG. 13A, it is assumed that the ball object BL1 passes a point P4 (u, v) in the hitting area. However, u is a coordinate axis passing through the center O1 and parallel to x ′, and v is a coordinate axis passing through the center O1 and parallel to z ′. If v at the point P4 is negative, the hitting point by the bat object is located below the sweet spot, so that the pitch angle θ1 of the reference initial speed Vref is set according to the value of v as shown in FIG. 13B. To determine the pitch angle of the initial velocity of the ball object BL1. On the other hand, if v at the point P4 is positive, the hitting point by the bat object is positioned above the sweet spot, and therefore the pitch angle θ1 of the reference initial velocity Vref is decreased according to the value of v to reduce the initial value of the ball object BL1. Find the velocity pitch angle.

  If u at point P4 is positive, the hit point by the bat object is located on the tip side opposite to the grip end from the sweet spot, so the right batter has a reference as shown in FIG. 13C. The yaw angle θ2 of the ball object BL1 is obtained by changing the yaw angle θ2 of the initial velocity Vref to the + θ2 side according to the value of u. On the other hand, if the point P4 is negative, the hit point by the bat object is positioned closer to the grip end than the sweet spot. Therefore, in the case of a right batter, the yaw angle θ2 of the reference initial velocity Vref is set to the −θ2 side according to the value of u. To obtain the yaw angle of the initial velocity of the ball object BL1.

  Furthermore, as shown in FIG. 11, when the hit instruction signal is acquired by the acquisition unit 51 when the ball object BL1 is positioned on the −y ′ side from the plane SF1, that is, the hit timing of the ball object BL1 is fast. In this case, as shown in FIG. 13C, in the case of a right batter, the yaw angle θ2 of the reference initial speed Vref is increased to the −θ2 side according to the value of d, so that the yaw angle of the initial speed of the ball object BL1 is increased. Ask. On the other hand, when the hit instruction signal is acquired by the acquisition unit 51 when the ball object BL1 is positioned on the + y ′ side from the plane SF1, that is, when the hit timing of the ball object BL1 is late, FIG. As shown in the figure, in the case of a right batter, the yaw angle θ2 of the reference initial velocity Vref is increased to the + θ2 side according to the value of d to obtain the yaw angle of the initial velocity of the ball object BL1.

  When the ball object BL1 passes the afterimage of the aiming object OB1, for example, the center O1 of the afterimage hitting area is taken as the sweet spot, and u and v of the ball object BL1 are obtained as shown in FIG. What is necessary is just to obtain the yaw angle of the initial velocity of the ball object BL1.

  Further, when the passing position of the ball object hitting area belongs to a plurality of hitting areas, the hitting power setting unit 55 determines that the moving object has passed through the hitting area having the latest display time among the hitting areas. Judgment is made and the hitting power is set based on the hitting area.

  As shown in FIG. 12, it is assumed that the mass point of the ball object has passed the point P3. In this case, the point P3 belongs to the hit area D1 and the hit area D2. In this case, it is determined that the ball object has passed through the new hitting area D1 at the display time, and the hitting power is calculated by the weighting coefficient α1.

  Further, the hitting power setting unit 55 sets the hitting power to be smaller as the passing position of the ball object in the hitting region through which the ball object has passed away from the center of the hitting region. As shown in FIG. 12, it is assumed that the mass point of the ball object has passed a point P4 in the hit area D1. In this case, the weighting factor α1 is corrected so that the weighting factor α1 decreases as the point P4 moves away from the center O1. Thereby, as the passing position of the ball object approaches the sweet spot, the weighting coefficient α1 increases, and the player can hit the ball object with strong power.

  Further, the hitting power setting unit 55 can set the trajectory of the bat object such as the upper swing and the down swing according to the player's operation input received by the operation unit 41 before the ball object is thrown. Here, the player can set the trajectory of the bat object such as the upper swing, the down swing, and the normal swing by operating the up direction key 19U or the down direction key 19D, for example. When the upper swing is selected, the hitting power setting unit 55 sets the pitch angle θ1 of the reference initial speed Vref to be larger than the pitch angle θ1 of the normal swing as shown in FIG. If selected, the pitch angle θ1 of the reference initial speed Vref may be set smaller than the pitch angle θ1 of the normal swing.

  In this embodiment, it is also possible to connect the controller slave unit 20 to the controller 19 shown in FIG. 1 via a cable. FIG. 14 is a diagram showing the controller slave unit 20. The controller slave unit 20 includes a button 21 and an acceleration sensor. The player can also set the trajectory of the bat object by moving the controller slave unit 20 up and down.

  In this case, the impact power setting unit 55 calculates the movement amount of the controller slave unit 20 in the virtual three-dimensional space from the acceleration signal output from the controller slave unit 20, and uses the reference initial speed Vref based on the angle corresponding to the calculated shift amount. The pitch angle θ1 may be set.

  Note that the magnitude and direction of the reference initial speed Vref may be changed as appropriate according to a predetermined ability value for the batting character. For example, a strong batter may increase the value of the reference initial speed Vref as compared to other batters. In addition, for a right batter who is good at sinking, the reference initial speed may be slightly shifted from the y ′ direction to the + θ2 direction.

Specifically, the hitting power setting unit 55 calculates the movement amount ΔX _i ′ in the virtual three-dimensional space in the same manner as the aiming object display control unit 52. Then, a fluctuation amount Δθ1 of the pitch angle θ1 of the reference initial speed Vref determined in advance is obtained according to the value of Δz _i ′ of the obtained movement amount ΔX _i ′ (Δx _i ′, Δy _i ′, Δz _i ′). , by adding the variation amount Δθ1 the pitch angle θ1 of the reference initial velocity Vref at t _i, obtaining the pitch angle θ1 of the reference initial velocity at time t _{i + 1.}

  At this time, the hitting power setting unit 55 moves the bat object 73 up and down in accordance with the change in the pitch angle θ1 of the reference initial speed Vref, as shown in FIG. 15, in order to clearly indicate the trajectory of the bat object to the player. Let Specifically, when the upper swing is set, the bat object 73 is moved and displayed below the normal swing, and when the down swing is set, the bat object 73 is displayed more than the normal swing. Move to the upper side.

  Returning to FIG. 2, the swing strength setting unit 56 sets the swing strength of the bat object by the batting character that strikes using the bat object.

  In this case, the aiming object display control unit 52 sets the hitting area smaller as the swing strength set by the swing strength setting unit 56 is larger.

  Here, the swing strength is set in accordance with, for example, an operation for setting the swing strength by the player before the ball object is thrown. The swing strength may be set stepwise, such as large, medium, and small, or may be set continuously.

  FIG. 16 is a diagram illustrating an aiming object having a small size. As shown in FIG. 16, it can be seen that the size of the aiming object OB1 is smaller than that of the aiming object shown in FIG. It can also be seen that the size of the afterimage ZN1 is reduced with the reduction of the size of the aiming object OB1. This makes it difficult to position the aiming object OB1 on the ball object. However, since the swing strength is set high, the player can hit the ball object with stronger power.

  Specifically, the swing strength setting unit 56 reflects the swing strength on the hitting power by changing the above-described reference initial speed Vref according to the set swing strength.

  Returning to FIG. 2, the display unit 45 includes the television monitor 21 and displays the aiming object and the ball object as described above.

  Next, the operation of the game apparatus will be described using the flowchart of FIG. First, in step S1, the program execution unit 42 reads out image data such as a sighting object, a batting character, a bat object, a baseball field background image, a pitcher character, and a fielder character from the image storage unit 61 on the display unit 45. Display and make initial settings. In this case, an image as shown in FIG. 3 is displayed on the display unit 45, for example.

  The aiming object display control unit 52 appropriately displays the aiming object on the display unit 45 according to the operation input received by the operation unit 41, and the afterimage display control unit 53 displays the afterimage of the aiming object on the display unit 45. Is displayed as appropriate. In this case, the aiming object as shown in FIG. 4 is displayed on the display unit 45, and the afterimage ZN1 is displayed as shown in FIG.

  Next, in step S2, the swing strength setting unit 56 sets the swing strength and trajectory of the bat object by the batting character in accordance with the operation input from the attacking player. In this case, as shown in FIG. 16, the aiming object display control unit 52 displays the size of the aiming object OB1 smaller as the swing strength is set higher.

  Next, in step S3, the operation unit 41 receives an input of a pitching command for pitching a ball object to the pitcher character from the defensive player. Here, as a pitching command, the player can specify a ball type and a hitting course.

  Next, in step S4, the program execution unit 42 sets the initial velocity of the ball object, regards the ball object as a mass point, and sets the initial velocity and the gravity previously given downward in the vertical direction in the virtual three-dimensional space. The ball object trajectory is calculated by repeatedly calculating the position of the ball object in the virtual three-dimensional space by solving the mass equation of motion using acceleration, various external forces such as lift, and the mass of the ball object. Then, the ball object is moved and displayed on the display unit 45 along the calculated trajectory.

  Here, the program execution unit 42 applies a predetermined external force to the ball object so that the ball object moves along a trajectory corresponding to the ball type or course designated by the player. The initial speed is set at a predetermined speed in accordance with the ball type and course designated by the player. In this case, as shown in FIG. 3, the ball object BL1 is moved and displayed from the pitcher character 71 toward the home base so as to draw a trajectory according to the ball type or course designated by the player.

  Next, in step S5, when the operation unit 41 receives an input of a hit command from the player (YES in step S5), the hit determination unit 54 can perform the hit determination process described above and hit the ball object. It is determined whether or not (step S6). In this case, for example, as shown in FIG. 7, when the ball object passes any one of the hit areas D1, D2, and D3 when the player inputs a hit command, it is determined that the ball object has been hit. .

  When the hit determination unit 54 determines that the ball object can be hit (YES in step S6), the hit power setting unit 55 executes the hit power setting process described above, and the hit ball object Is calculated (step S7). In this case, the hit determination unit 54 causes the display unit 45 to display an image that clearly indicates that the ball object has been hit by the bat object, as shown in FIG.

  Next, in step S8, the program execution unit 42 calculates the trajectory of the hit ball object and executes hitting processing for moving and displaying the ball object along the calculated trajectory. In this case, the program execution unit 42 regards the center of gravity of the ball object as a mass point, and solves the motion equation of the mass point using the initial velocity of the ball object calculated in step S7 in the same manner as in step S4. The position is repeatedly calculated, the trajectory of the ball object is calculated, and the ball object is moved and displayed on the display unit 45 along the calculated trajectory.

  On the other hand, in step S5, when the hit command is not accepted by the operation unit 41 (NO in step S5), that is, when the player sees off the ball object, the program execution unit 42, for example, captures the ball object by the catcher character. A see-off process such as displaying an image of a sphere on the display unit 45 is executed (step S10).

  On the other hand, when the hit determination unit 54 determines in step S6 that the hit determination process failed to hit (NO in step S6), that is, when the player flicks the ball object, the pitcher character moves the bat object. After the image to be swung is displayed on the display unit 45, an emptying process such as displaying an image on the display unit 45 where the catcher character catches the ball object that has been swung is executed (step S9).

  As described above, according to the game program according to the present embodiment, even if the player fails to align the aiming object with the ball object, if the afterimage of the aiming object is aligned with the ball object, It is determined that the object could be hit.

  Therefore, the hitting area is expanded as compared with the configuration in which only the aiming object is positioned as the hitting area with the ball object. As a result, the player can easily hit the moving object, the operation is not excessive, and the fun of the game can be increased.

  In the above description, the case where the present game apparatus executes a baseball game is illustrated, but the present invention is not limited to this, and a ball game game in which a ball is repelled by a racket such as tennis, table tennis, squash, etc. is executed. May be. In this case, a racket may be used as an operation object.

  Moreover, you may make this game device perform a clay shooting game. In this case, a rifle and a bullet fired from the rifle may be used as an operation object, and a flying object that is a shooting target may be a moving object.

It is a block diagram which shows the structure of the game device of one embodiment of this invention. It is a main functional block diagram of the video game apparatus shown in FIG. It is the figure which showed an example of the image displayed on a display part in a video game device. It is the figure which showed an example of the aim object displayed on a display part. It is the schematic diagram which showed the position of the aim object in virtual three-dimensional space. The afterimage of the aiming object displayed by the afterimage display control unit is shown. The afterimage of the aiming object displayed by the afterimage display control unit is shown. It is the figure which showed the hit | damage area | region displayed on a display part in the hit character with a high hit rate. It is the figure which showed the hit | damage area | region displayed on a display part in the hit character whose batting rate is lower than FIG. It is explanatory drawing of the moving speed of an aim object. It is explanatory drawing of the hit determination process which a hit determination part performs. It is explanatory drawing of the striking power setting process performed when a striking power setting part sets striking power. It is the figure which showed the calculation process of the direction of the initial velocity of the ball object hit. It is the figure which showed the controller subunit | mobile_unit. It is a screen figure displayed in order to clearly show the track of a bat object to a player. It is the figure which showed the aim object by which the size was set small. It is a flowchart which shows the process of the main functions of the game device by this Embodiment. It is the figure which showed an example of the image which specifies that the ball object was hit with the bat object.

Explanation of symbols

41 operation unit 42 program execution unit 43 data storage unit 44 program storage unit 45 display unit 51 acquisition unit 52 aiming object display control unit 53 afterimage display control unit 54 impact determination unit 55 impact power setting unit 56 swing strength setting unit 61 image storage unit 62 Recording medium OB1 Aiming object

Claims (10)

A game program that causes a computer to execute a game that acts on a moving object moving in a virtual three-dimensional space using an operation object,
The computer includes storage means for storing in advance a sighting object displayed on a display unit so that a player can specify a position where the operation object acts on the moving object.
An operation unit including an acceleration sensor performs an operation for determining a first operation signal output when the operation unit itself is moved by the player and a timing at which the player acts on the moving object. Obtaining means for obtaining a second operation signal output by
Aiming object display control means for displaying the aiming object as an action area on the display unit based on the first operation signal obtained by the obtaining means ;
An afterimage display control means for displaying an afterimage of the aiming object previously displayed by the aiming object display control means on the display unit as an action area;
When the acquisition means receives the second instruction signal, if the moving object passes through any action region, the action determining means determines that the operation object has acted on the moving object. A game program characterized by having the function.   The computer further functions as action power setting means for setting the action power of the operation object to the moving object larger as the action area through which the moving object has passed is a new action area of the display time. The game program according to claim 1.   The action power setting means, when the passing position of the moving area of the moving object belongs to a plurality of action areas, of the plurality of action areas, the moving object passes the action area having the latest display time The game program according to claim 2, wherein the game power is determined based on the action area.   The action power setting means sets the action power to be smaller as the passing position of the moving object in the action area through which the moving object has passed moves away from the center of the action area. 3. The game program according to 3. The aiming object display control means displays the aiming object at a constant time interval,
The game program according to any one of claims 1 to 4, wherein the afterimage display control means displays a predetermined number of aiming objects as an afterimage from the current aiming object.   The afterimage display control means increases the number of display of the action area as the predetermined ability value for an action character that acts on the moving object using the operation object is higher. The game program according to claim 5.   The aiming object display control means increases the moving speed of the aiming object as the predetermined ability value for the action character that acts on the moving object using the operation object is higher. The game program according to claim 1. Further causing a computer to function as swing strength setting means for setting swing strength of the operation object by an action character that acts on the moving object using the operation object;
The game program according to claim 1, wherein the aiming object display control unit sets the action area to be smaller as the swing strength is higher. A game device that uses a manipulation object to act on a moving object that moves in a virtual three-dimensional space,
An operation unit including an acceleration sensor;
A display unit;
The operation unit outputs the first operation signal that is output when the operation unit itself is moved by the player and the operation for determining the timing at which the player acts on the moving object. Obtaining means for obtaining the second operation signal;
Storage means for storing in advance a sighting object displayed on the display unit in order for a player to specify a position where the operation object acts on the moving object;
Aiming object display control means for displaying the aiming object as an action area on the display unit based on the first operation signal obtained by the obtaining means;
An afterimage display control means for displaying an afterimage of the aiming object previously displayed by the aiming object display control means on the display unit as an action area;
Action determining means for determining that the operating object has acted on the moving object when the moving object has passed through any of the action areas when the obtaining means has received the second instruction signal; A game device comprising: A game control method for acting on a moving object that moves in a virtual three-dimensional space using an operation object,
The computer includes storage means for storing in advance a sighting object displayed on the display unit so that a player can specify a position where the operation object acts on the moving object.
The computer has an operation for determining a first operation signal output when the operation unit itself is moved by a player from an operation unit including an acceleration sensor and a timing at which the player applies an action to the moving object. An acquisition step of acquiring a second operation signal output by being performed;
An aiming object display control step in which the computer displays the aiming object on the display unit as an action area based on the first operation signal obtained in the obtaining step;
An afterimage display control step in which the computer displays an afterimage of the aiming object displayed in the past in the aiming object display control step as an action area on the display unit;
When the computer receives the second instruction signal in the obtaining step, the computer determines that the operation object has acted on the moving object when the moving object has passed through any of the action areas. A game control method comprising: a determination step.

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