JP2020054879A - Game machine, game system, and program - Google Patents

Abstract

To provide a game machine allowing each player who plays a fight game to optionally select a basic standing position relative to a match opponent of a character of an own machine within a game image.SOLUTION: First and second virtual cameras 300A, 300B are disposed so as to be symmetrical while sandwiching a reference point M, a reference line L10, or a reference surface S determined by a first position P1 related to a position of a first character OB1 and a second position P2 related to a position of a second character OB2 within an object space, and the first and second virtual cameras are controlled such that positions of the first and second virtual cameras 300A, 300B are symmetrical with respect to a point, a line, or a plane. It is determined whether an object space photographed by one virtual camera from among the first and second virtual cameras 300A, 300B on the basis of basic standing positions determined by a position selection part is displayed as a game image.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a game machine, a game system, and a program.

  2. Description of the Related Art Conventionally, a game system has been known in which first and second characters controlled by the operations of two players fight against each other in an object space (virtual three-dimensional space). On the display of each player, a game image in which the first character and the second character fight against each other in a left-right manner is displayed. , It is possible to enjoy the game by performing attack defense such as performing martial arts while avoiding the opponent's skill.

  For controlling the virtual camera in the object space for generating the game image, various methods (for example, a method described in Patent Literature 1) are adopted according to the content of the game.

JP 2009-237680 A

  In a conventional fighting game, control of a virtual camera in an object space is performed such that the left and right arrangement of a first character and a second character on a game screen is the same for each game machine of two players who are competing. Had been done.

  Therefore, when the initial standing position of one player is set to the right, the initial standing position of the other player is automatically set to the left, and each player selects his or her desired initial standing position. The game could not be played.

  The present invention has been made in view of the above problems, and an object of the present invention is to allow each player who performs a game such as a fighting game to determine a basic standing position of a character of the player's own device with respect to an opponent in a game image. It is to provide a game machine, a game system, and a program that can be arbitrarily selected.

(1) The present invention
A first game machine and a second game machine, in which operation information of a first character controlled by an operation of a first player and operation information of a second character controlled by an operation of a second player are mutually transmitted and received. The game machine in a game system that executes a game in which the first character and the second character compete in the object space, the game machine comprising:
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
A virtual camera control unit that controls a virtual camera that captures at least one of the first character and the second character based on the position of at least one of the first character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
A position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent's character based on the player's selection instruction;
Including
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
The present invention relates to a game machine that determines which one of the first and second virtual cameras is to display an object space captured by a virtual camera as a game image based on the basic standing position determined by the position selection unit.

  Further, the present invention may be the game system or a program that causes a computer to function as the game machine in the game system.

  According to the present invention, a game machine and a game in which each player who plays a game such as a fighting game can enjoy a fighting game by arbitrarily selecting a standing position of a character of the player's own with respect to an opponent in a game screen. Systems and programs can be provided.

  In particular, according to the present invention, the left and right arrangement of each character in the game image can be changed according to the demand of each player without affecting the arrangement of each opponent character in the object space. As a result, each player can select his or her special standing position and play a match while enjoying the game effect in the object space.

  Here, “accept the selection instruction” may be performed prior to the start of the game.

  In addition, as the point symmetry control or the line symmetry control, the first and second virtual points are symmetrically positioned with respect to a reference point or a reference line in XY two-dimensional plane coordinates in an X, Y, Z world coordinate system in an object space. A camera may be arranged, and the first and second virtual cameras may be controlled by point symmetry or line symmetry. As a result, in the images of the first and second virtual cameras, the positions of the first character and the second character to be played are reversed left and right.

  At this time, the height positions (Z coordinate values) of the first and second virtual cameras may be controlled to be the same.

  In the plane symmetry control, a plane that includes the reference line and is perpendicular to the X, Y two-dimensional plane coordinates is defined as a reference plane in the X, Y, Z, and world coordinate systems of the object space. The first and second virtual cameras may be controlled so as to be plane-symmetric with respect to each other.

  Further, the game machine may have a display section for displaying a game image and an operation section for inputting operation information of a character. Each game machine may be formed as a separate body, and may be integrated as necessary. It may be formed as.

(2) In the game machine, the game system and the program according to the present invention,
The virtual camera controller,
The positions of the first and second virtual cameras may be switched between point symmetry, line symmetry, and plane symmetry in accordance with a battle situation between the first character and the second character that compete.

  For example, in a mode in which the first player operates the first character and the second player operates the second character to perform attack and defense, point-symmetric control may be performed.

  In addition, in the production mode in which the player's attack input is successful, for example, in a production mode in which one character automatically produces a motion of attacking the other character, the control is switched from point-symmetric control to line-symmetric control so that the effect of the technique is produced as an image. You may. For example, when the player inputs a continuous technique such as a combo and succeeds, the mode may be switched from the attack / defense mode to the effect mode, and the camera control may be switched from the point symmetric control to the line symmetric control.

(3) In the game machine, the game system and the program according to the present invention,
The operation information of the first character and the operation information of the second character transmitted and received between the first game machine and the second game machine include information of the selection instruction received by each game machine,
The character control unit includes:
The operation information of the first character and the movement instruction information included in the operation information of the second character are converted into movement instruction information in the world coordinate system of the object space based on the selection instruction of the own device and the other device. May be performed.

  According to the present invention, even when each player performing the fighting game arbitrarily selects the basic standing position of the character of the own device with respect to the opponent in the game screen, based on the selection instruction of the own device and the other device, Since the process of converting the operation information of the first character and the movement instruction information included in the operation information of the second character into movement instruction information of the world coordinate system in the object space is performed, each player competing with each other is processed. Can operate his own character without discomfort while watching the game screen.

(4) In the present invention,
In a game system that executes a game in which a first character controlled by an operation of a first player and a second character controlled by an operation of a second player play a match.
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
A virtual camera control unit that controls a virtual camera that captures at least one of the first character and the second character based on the position of at least one of the first character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
A position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent's character based on the player's selection instruction;
Including
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
Based on the basic standing position determined by the position selection unit, it may be determined which of the first and second virtual cameras the object space captured by the virtual camera should be displayed as a game image.

  Further, the present invention may be a program that causes a computer to function as the game system.

FIG. 1 is a schematic external view of a game machine constituting a game system according to the embodiment. FIG. 1 is a schematic explanatory diagram illustrating a network configuration of a game system according to an embodiment. FIG. 1 is a schematic explanatory diagram illustrating a network configuration of a game system according to an embodiment. FIG. 2 is an exemplary functional block diagram of the game machine according to the embodiment. FIG. 4 is an explanatory diagram illustrating an example of camera control of first and second virtual cameras. FIG. 4 is an explanatory diagram illustrating an example of point symmetric control of first and second virtual cameras. FIG. 4 is an explanatory diagram illustrating an example of line symmetry control of first and second virtual cameras. FIG. 4 is an explanatory diagram illustrating an example of point symmetric control of first and second virtual cameras. FIG. 4 is an explanatory diagram of a selection screen for selecting a basic standing position of a player character. Explanatory drawing showing an example of a game screen. 5 is a flowchart illustrating an example of processing of the game system according to the embodiment.

  Hereinafter, the present embodiment will be described. The present embodiment described below does not unduly limit the contents of the present invention described in the claims. Further, all of the configurations described in the present embodiment are not necessarily essential components of the invention.

1. Configuration FIG. 1 is a schematic external view showing the configuration of the game machine of the present embodiment.

  The game machine 10 of the present embodiment includes a first character controlled by an operation of a first player and a second character controlled by an operation of a second player in a given game space (object space). It is configured as a game machine that performs a fighting game in which a character battles.

  The game machine 10 includes a housing 12 for storing a processing unit (computer) for performing game processing and the like, a display 20 for displaying a game screen, a speaker 22 for outputting sound effects and BGM of the game, and a game operation unit. 30 and a coin insertion unit 24 for inserting a coin as a game play fee.

  The game machine 10 has a built-in system board 1000 on which a CPU, an image generation IC, a sound generation IC, etc. are mounted, and a game program or game data read from a memory serving as an information storage medium on the system board 1000, or The fighting game is executed based on an operation signal or the like input from the lever 32 and the button.

  The player of the game machine 10 enjoys the fighting battle game while watching the game screen displayed on the display 20. In detail, the player performs various game operations such as inputting the type of technique and the timing at which the technique is advanced from the lever 32 or the button to move the player character, and the player of another game machine installed in the store or A fight against a player of a game machine installed in another store, or a computer fight against a character controlled by a CPU is performed to enjoy a fighting fighting game.

In the present embodiment, the game operation unit 30 includes a lever 32 and buttons 34, 36, 37, and 38. For example, the right hand button 34 can be operated by "right punch", the left hand button 36 can be operated by "left punch", the right foot button 37 can be operated by "right kick", and the left foot button 38 can be operated by "left kick".

  Further, by simultaneously inputting a plurality of buttons, or by combining the inclination angle of the lever 32 and the input of the buttons, further different types of operation inputs can be performed. For example, by inclining the lever 32 in a direction in which the player character moves forward in combination with the input of the button, it is possible to perform various attack operation inputs. In addition, by inclining the lever 32 in a direction in which the player character moves backward in combination with the input of the button, operation inputs of various defense operations can be performed.

  For example, when the buttons are pressed in the order of the left hand button 36, the right hand button 34, the left hand button 36, and the right hand button 34 (or, in addition, by tilting the lever 32 rightward), the player character on the game screen actually After moving the left hand, the right hand, the left hand, and the right hand (or after walking in the right direction in addition to this), an operation of performing a special technique can be performed, and the sense of realism can be enhanced.

  When the right foot button 37 is pressed immediately after the left hand button 36 is pressed, the player character performs a jab with the left hand and then performs a left kick.

  The game machine 10 of the present embodiment employs a configuration in which the player can select a standing position of the character of the player's own machine with respect to the opponent in the game image when performing the fighting game. The configuration will be described later.

  FIG. 2 shows an example of the overall configuration of the game system 1 in the present embodiment, and FIG. 3 shows an example of the system configuration of each store GS.

  As shown in FIG. 2, in this embodiment, each game machine 10 installed as a game terminal in each store GS (GS-A, GS-B,...) Is connected to the game server 2 via the network N. The constructed game system is constructed. Here, the network N means a communication path through which data can be exchanged.

  When performing a fighting game with another game machine via the network N, each of the game machines 10 sequentially receives operation codes from the partner device in a predetermined cycle during the game, and transmits to the partner device an operation input to the own device. Based on the operation code. Then, based on the operation code received from the opponent device and the operation code based on the operation input to the own device, the motion of the character object in the game space formed in the object space is controlled. An image captured by a virtual camera is generated as a game image and displayed on the display 20. At the same time, BGM and sound effects are generated and output from the speaker 22.

  The game server 2 manages the game machines 10 participating in the network game and controls the entire game system.

2. Functional Block Diagram FIG. 4 shows an example of a functional block diagram of the game machine 10 of the present embodiment. Note that the game machine 10 of the present embodiment may have a configuration in which some of the components (sections) in FIG. 4 are omitted.

  The operation unit 160 is an input device (controller) for inputting input information from a player (operator), and outputs the input information of the player to the processing unit 100. The operation unit 160 includes, for example, an analog lever, a button, a steering wheel, a microphone, a touch panel display, and an acceleration sensor. The lever 32 and the buttons 34, 36, 37, 38 in FIG. 2 correspond to this.

  The card read / write unit 162 reads and writes data from a game card under the control of the processing unit 100.

  The storage unit 170 stores a predefined program and data, and also serves as a work area for the processing unit 100 and the communication unit 196. The storage unit 170 receives a calculation result executed by the processing unit 100 according to various programs and an input from the operation unit 160. The input data and the like to be input are temporarily stored. The function can be realized by a RAM (VRAM) or the like.

  The information storage medium 180 (computer-readable medium) stores programs, data, and the like, and functions as an optical disk (CD, DVD), a magneto-optical disk (MO), a magnetic disk, a hard disk, a magnetic tape. Alternatively, it can be realized by a memory (ROM) or the like.

  The processing unit 100 performs various processes of the present embodiment based on a program (data) stored in the information storage medium 180. The information storage medium 180 can store a program for causing a computer to function as each unit of the present embodiment (a program for causing a computer to execute processing of each unit).

  In particular, the information storage medium 180 according to the present embodiment includes a system program for realizing various functions for causing the processing unit 100 to control the game machine 10 in an integrated manner, and a game program required to execute a competitive fighting game. Stores programs, various data, and the like. When the processing unit 100 reads and executes the game program, the processing unit 100 can realize various functions for the fighting game.

  Further, the information storage medium 180 stores character setting data, stage setting data, and standard virtual camera setting data as data prepared in advance. In addition, as information necessary for executing the processing related to the progress of the game, for example, data such as an angle of view, a line of sight direction, and attitude information for controlling the virtual camera, count data of various time limits, and the like are appropriately stored. .

  In the character setting data, basic information necessary for character display and motion control, such as model data, texture data, and motion data of the character used in the battle game, is stored in association with each character.

  In the stage setting data, information such as model data and texture data for forming a stage to be a battle stage in a three-dimensional virtual space is stored for each stage.

  The standard virtual camera setting data stores the standard settings of the virtual camera that shoots the game space. For example, the position, angle of view, movement route, movement speed, rotation direction and rotation speed, change in zoom, and the like of the virtual camera are set. In particular, in the present embodiment, as described later, the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric, or plane-symmetric in the object space. Is also stored.

  The display unit 190 outputs an image generated according to the present embodiment, and its function can be realized by a CRT, an LCD, a touch panel display, an HMD (head mounted display), or the like. The display 20 in FIG. 2 corresponds to this.

  The sound output unit 192 outputs the sound generated according to the present embodiment, and its function can be realized by a speaker, headphones, or the like.

  The communication unit 196 performs various controls for performing communication with the outside (for example, another terminal or server), and its function is realized by hardware such as various processors or communication ASICs, a program, or the like. it can.

  Note that a program and data for causing a computer to function as each unit of the present embodiment stored in an information storage medium or a storage unit included in the server are received via a network, and the received program or data is stored in the information storage medium 180. Or the storage unit 170. The case where the terminal is made to function by receiving the program or data in this way is also included in the scope of the present invention.

  The processing unit 100 (processor) performs processing such as game processing, image generation processing, or sound generation processing based on input data, programs, and the like from the operation unit 160 and the card read / write unit 162.

  The processing unit 100 performs various processes using the main storage unit 171 in the storage unit 170 as a work area. The function of the processing unit 100 can be realized by hardware such as various processors (CPU, DSP, etc.), ASIC (gate array, etc.), and programs.

  The processing unit 100 includes a standing position selection unit 110, an object space setting unit 111, a movement / motion control unit 112, an operation code transmission / reception control unit 113, a communication control unit 114, a game calculation unit 115, a display control unit 116, and a virtual camera control unit. 117, a drawing unit 120, and a sound processing unit 130. Note that a configuration in which some of these are omitted may be adopted.

  The standing position selection unit 110 performs a process of determining whether the basic standing position of the player character in the game image is to the right or left of the basic standing position of the opponent character based on the player's selection instruction. . Specifically, at the stage where the player has entered the battle game and the opponent has been determined, a selection screen for accepting a selection instruction such as “RIGHT” or “LEFT” as shown in FIG. 9 is displayed on the display unit 190. By operating the lever 32, the player makes a right / left selection input. The input selection instruction data is stored in the selection instruction data storage unit 174 of the storage unit 170 as its own selection instruction data 174a. The selection instruction data transmitted from the opponent is also stored as the opponent selection instruction data 174b. The basic standing position in the present embodiment means an initial standing position.

  The game calculation unit 115 executes a process related to the progress of the fighting fighting game. For example, a process for starting a game when a game start condition is satisfied, a process for proceeding with a game, a process for ending a game when a game end condition is satisfied, and an ending when a final stage is cleared There are processing.

  The object space setting unit 111 performs a process of arranging objects in an object space (virtual three-dimensional space). For example, a process of forming a game space (for example, a stage for characters to wrestle) in a virtual three-dimensional virtual space is performed. In addition to the character, a process of arranging a display object such as a building, a stadium, a car, a tree, a pillar, a wall, a map (terrain) in the object space is performed. Here, the object space is a virtual game space, for example, a space in which objects are arranged in three-dimensional coordinates (X, Y, Z) such as a world coordinate system and a virtual camera coordinate system.

For example, the object space setting unit 111 arranges objects (objects composed of primitives such as polygons, free-form surfaces, and subdivision surfaces) in the world coordinate system. Further, for example, the position and rotation angle (synonymous with direction and direction) of the object in the world coordinate system are determined, and the rotation angle (X, Y, Z axis rotation) is set at the position (X, Y, Z). Place the object at an angle).

  The object space setting unit 111 may perform a process of arranging an instruction object such as a special command input instruction object or a marker on a screen (two-dimensional image, screen, screen coordinate system). Further, the object space setting unit 111 may arrange the pointing object in an object space (three-dimensional space, world coordinate system, virtual camera coordinate system, model coordinate system).

  The movement / motion control unit 112 calculates the movement / motion of an object in the object space. That is, based on input information received from the operation unit 160, a program (movement / movement algorithm), various data (motion data), and the like, the object is moved in the object space, and the object is moved (motion, animation). Or perform a process.

  The character control unit 112a controls the behavior of a character object (character) that is a main object in the object space. More specifically, a process of controlling the movements of the player and the opponent's character based on the operation code based on the operation input to the operation unit 160, the operation code acquired from the opponent's game machine 10, and the data of the selection instruction. When a specific condition is satisfied, an effect display process, an attack technique hit determination process, and a damage process thereof are performed.

  The character control unit 112a performs such processing for each frame (for example, 1/60 second). Note that a frame is a unit of time for performing the object movement / motion processing and the image generation processing.

  The operation code transmission / reception control unit 113 transmits an operation code indicating which input device of the operation unit 160 has been operated to the partner apparatus via the communication control unit 114 and the communication unit 196 in a predetermined cycle (for example, the time for performing the image generation process). (Same cycle as or shorter than the unit), and a process of receiving the operation code transmitted from the partner device is executed.

  The input operation code data is stored in the operation code data storage unit 176 of the storage unit 170 as the operation code data 176a of the own device. The data of the operation code transmitted from the opponent is also stored as the opponent's operation code data 176b.

  The operation code transmission / reception control unit 113 also executes a process of transmitting the selection instruction data 174a of the own device stored in the selection instruction data storage unit 174 to the partner device before starting the game.

  The display control unit 116 performs a process of displaying the image generated by the drawing unit 120 on the display unit 190.

  The virtual camera control unit 117 controls a virtual camera (viewpoint) for generating an image viewed from a given (arbitrary) viewpoint in the object space. Specifically, when generating a three-dimensional image, the position (X, Y, Z) of the virtual camera in the world coordinate system and the rotation angle (for example, from the positive direction of each of the X, Y, Z axes) (A rotation angle when clockwise turning). In short, the virtual camera control unit 117 performs a process of controlling at least one of the viewpoint position, the line-of-sight direction, the angle of view, the moving direction, and the moving speed of the virtual camera.

  In particular, the virtual camera control unit 117 of the present embodiment controls the virtual camera that follows the behavior of the character object (character).

  Further, for example, as shown in FIG. 5, the virtual camera control unit 117 includes a first position P1 associated with the first character OB1 to compete in the object space and a second position P1 associated with the second character OB2. The first and second virtual cameras 300A and 300B are arranged so that the first and second virtual cameras 300A and 300B are symmetrical with respect to a reference point M, a reference line L10, or a reference plane S determined by the position P2. , 300B are controlled to be point-symmetric, line-symmetric, or plane-symmetric. At this time, the directions of the first and second virtual cameras 300A and 300B are controlled so that the line-of-sight directions of the first and second virtual cameras 300A and 300B are directed to the reference point M, and the first and second virtual cameras 300A and 300B are competing. The imaging range 400 of the first and second virtual cameras 300A and 300B is controlled so that the two characters OB1 and OB2 face left and right.

  The point symmetry, line symmetry or plane symmetry control of the first and second virtual cameras 300A and 300B will be described later.

  The communication control unit 114 may perform a process of transmitting and receiving data between itself and another game machine or server via a network.

  Note that the game machine 10 of the present embodiment may perform processing for acquiring network information required for communication control from a server and managing the network information. For example, the game machine 10 associates terminal identification information (data individually assigned for identifying a terminal that can participate in an online game, ID) assigned to each game machine with terminal identification information. A process for acquiring and managing destination information (such as an IP address) specifying the transmission destination of the received packet may be performed.

  The communication control unit 114 generates a packet to be transmitted to another terminal or a server, specifies an IP address or a port number of a terminal to which the packet is to be transmitted, and stores data included in the received packet in the storage unit 170. It performs processing, analysis of received packets, and other control processing related to transmission and reception of packets.

  Further, the communication control unit 114 according to the present embodiment determines data until a connection between a plurality of terminals or a server (a connection between the first terminal and the second terminal) is established and the connection is disconnected. A process of transmitting and receiving each other in a cycle (for example, in a one second cycle) is performed.

  In the case of a network system including a plurality of terminals, a peer-to-peer (so-called P2P) method for executing an online game while transmitting and receiving data between the plurality of terminals may be used, or the server 2 Alternatively, a client-server system in which each terminal executes an online game while transmitting and receiving data (information) may be used. Further, in the network system of the present embodiment, data may be transmitted and received not only by wired communication but also by wireless communication.

  The drawing unit 120 performs a drawing process based on the results of various processes performed by the processing unit 100, thereby generating an image and outputting the image to the display unit 190. In other words, the drawing unit 120 generates an image viewed from the virtual camera in the object space.

For example, the drawing unit 120 receives object data (model data) including vertex data of each vertex of the object (model) (position coordinates of the vertices, texture coordinates, color data, normal vector, α value, etc.), and inputs the data. Vertex processing (shading by a vertex shader) is performed based on the vertex data included in the subjected object data. When performing the vertex processing, vertex generation processing (tessellation, surface division, polygon division) for subdividing the polygon may be performed as necessary.

  In the vertex processing, in accordance with a vertex processing program (vertex shader program, first shader program), vertex movement processing and coordinate conversion, for example, world coordinate conversion, view conversion (camera coordinate conversion), clipping processing, perspective conversion (projection conversion) ), Geometry processing such as viewport conversion is performed, and based on the processing result, vertex data given for a vertex group forming the object is changed (updated and adjusted).

  Then, rasterization (scan conversion) is performed based on the vertex data after the vertex processing, and the surface of the polygon (primitive) is associated with the pixel. Subsequent to the rasterization, pixel processing (shading by a pixel shader, fragment processing) for drawing pixels constituting an image (fragments constituting a display screen) is performed. In the pixel processing, according to a pixel processing program (pixel shader program, second shader program), various processes such as reading of texture (texture mapping), setting / changing of color data, translucent composition, and anti-aliasing are performed, and the image is processed. The final drawing color of the constituent pixels is determined, and the drawing color of the perspective-transformed object is output (drawn) to an image buffer 172 (a buffer capable of storing image information in pixel units; VRAM, rendering target, frame buffer). . That is, in the pixel processing, per-pixel processing for setting or changing image information (color, normal, luminance, α value, etc.) in pixel units is performed. As a result, an image that is viewed from the virtual camera (given viewpoint) in the object space is generated.

  The vertex processing and the pixel processing are realized by hardware that enables a polygon (primitive) drawing process to be programmed by a shader program described in a shading language, a so-called programmable shader (vertex shader or pixel shader). Programmable shaders allow for a high degree of freedom in rendering processing by allowing the processing of vertices and processing of pixels to be programmable, greatly improving the expressive power compared to fixed rendering processing using conventional hardware. Can be.

  Then, when rendering the object, the rendering unit 120 performs geometry processing, texture mapping, hidden surface removal processing, α blending, and the like.

  In the geometry processing, processing such as coordinate conversion, clipping processing, perspective projection conversion, or light source calculation is performed on the object. Then, the object data (the position coordinates of the vertices of the object, the texture coordinates, the color data (luminance data), the normal vector, or the α value, etc.) after the geometry processing (after the perspective projection transformation) are stored in the storage unit 170. .

  Texture mapping is processing for mapping a texture (texel value) stored in the storage unit 170 to an object. Specifically, the texture (surface properties such as color (RGB) and α value) is read from the storage unit 170 using the texture coordinates and the like set (given) to the vertices of the object. Then, the texture that is a two-dimensional image is mapped to the object. In this case, processing for associating pixels with texels and bilinear interpolation are performed as texel interpolation.

As the hidden surface erasing process, a hidden surface erasing process by a Z buffer method (depth comparison method, Z test) using a Z buffer (depth buffer) in which a Z value (depth information) of a drawing pixel is stored can be performed. . That is, when drawing a drawing pixel corresponding to the primitive of the object, the Z value stored in the Z buffer is referred to. Then, the Z value of the referenced Z buffer is compared with the Z value at the rendering pixel of the primitive, and the Z value at the rendering pixel is a Z value (for example, a small Z value) on the near side as viewed from the virtual camera. In some cases, the drawing process of the drawing pixel is performed, and the Z value of the Z buffer is updated to a new Z value.

  α blending (α composition) refers to translucent composition processing (normally α blending, addition α blending, subtraction α blending, etc.) based on the α value (A value).

  For example, in α blending, a drawing color (color to be overwritten) C1 to be drawn in the image buffer 172 and a drawing color (base color) C2 already drawn in the image buffer 172 (render target) are converted into α values. A linear synthesis process is performed based on the results. That is, assuming that the final drawing color is C, it can be obtained by C = C1 * α + C2 * (1−α).

  The α value is information that can be stored in association with each pixel (texel, dot), for example, plus alpha information other than color information. The α value can be used as mask information, translucency (equivalent to transparency and opacity), bump information, and the like.

  Note that when performing a multiplayer online game in which data is transmitted / received to / from another terminal (second terminal) via a network, the drawing unit 120 follows the movement of an operation-symmetric object of the terminal (first terminal). A process of generating an image viewed from a virtual camera (a virtual camera controlled by a terminal (first terminal)). That is, each terminal performs an independent drawing process.

  The sound processing unit 130 performs sound processing based on the results of various processes performed by the processing unit 100, generates game sounds such as BGM, sound effects, and sounds, and outputs the generated game sounds to the sound output unit 192.

  Note that the terminal of the present embodiment may be controlled so that the game can be played in a single player mode in which only one player can play, or in a multi-player mode in which a plurality of players can play. For example, when controlling in the multi-player mode, game processing may be performed by transmitting / receiving data to / from another terminal via a network, or one terminal may receive input information from a plurality of input units. The processing may be performed based on this.

3. Point Symmetry Control, Line Symmetry Control, and Plane Symmetry Control of Virtual Camera Hereinafter, the point symmetry, line symmetry, or plane symmetry control of the first and second virtual cameras 300A and 300B will be described.

  In FIG. 5, the position in the object space is specified by the world coordinate system of X, Y, and Z. X and Y specify the coordinate position on the horizontal plane, and Z specifies the coordinate position in the vertical direction. Further, in the same figure, the coordinates of the first position P1 and the second position P2 associated with the first and second character objects (characters) OB1 and OB2 are as follows, respectively.

P1 = (X1, Y1, Zh),
P2 = (X2, Y2, Zh)
A line connecting P1 and P2 is defined as a reference line L10, and a center point of the reference L10 is defined as a reference point M.

The coordinates of the reference point M are as follows: M = ((X2-X1) / 2, (Y2-Y1) / 2, Zh)
It is represented by

  A plane including the reference line L10 and orthogonal to the X and Y horizontal planes is defined as a reference plane S.

(Point symmetric control of virtual camera)
First, the point symmetry control of the first and second virtual cameras 300A and 300B will be described.

  In FIG. 5, the first and second virtual cameras 300A and 300B are arranged symmetrically with respect to the reference point M. Then, the positions and orientations of the first and second virtual cameras 300A and 300B are controlled such that the positions of the first and second virtual cameras 300A and 300B are point-symmetric via the reference point M.

  The point symmetry control may be performed such that the first and second virtual cameras 300A and 300B are point-symmetric with respect to the reference point M in the XY-dimensional plane including the reference point M. In this case, it is preferable to control the attitude of the first and second virtual cameras 300A and 300B so that the line of sight of each of the virtual cameras 300A and 300B faces the reference point M.

  FIG. 8 shows an example of the point symmetric control. Here, an example will be described in which the point symmetry control is performed while maintaining the Z-axis coordinate value in the height direction of the first and second virtual cameras 300A and 300B at the same value Zh as the Z coordinate value of the reference point M. .

  In the present embodiment, in the XY-dimensional plane including the reference point M, the first and second virtual cameras 300A and 300B are arranged point-symmetrically on a line including the reference point M and orthogonal to the reference line L10. Is done. This arrangement is the basic arrangement for point symmetry control.

  Further, the first and second virtual cameras 300A, 300B are connected to the first and second characters OB1. The imaging range 400 is set and controlled such that OB2 is displayed on the game screen so as to face left and right.

  As a result, on the game screen shot by the first virtual camera 300A, as shown in FIG. 10A, the basic standing position of the first character OB1 is on the left, and the basic standing position of the second character OB2 is on the right. Become.

  In a game image captured by the second virtual camera 300B, as shown in FIG. 10B, the basic standing positions of the characters OB1 and OB2 are opposite to those of the first virtual camera 300A. That is, as shown in FIG. 10B, the basic standing position of the first character OB1 is on the right, and the basic standing position of the second character OB2 is on the left.

  As shown in FIG. 8, the first and second virtual cameras 300A and 300B in the basic arrangement of the above-described point symmetry control are moved along a given movement route with respect to the reference point M as necessary. The movement control may be performed while maintaining the point symmetric state. In this case, it is preferable to control the attitude of the first and second virtual cameras 300A and 300B so that the line of sight of each of the virtual cameras 300A and 300B faces the reference point M.

  For example, when the movement of the first and second virtual cameras 300A and 300B is controlled while maintaining the point-symmetric state at the positions of 300A 'and 300B' in FIG. 8, a game obtained from the first virtual camera 300A ' The image is an image in which the second character OB2 is projected obliquely from the front of the first character OB1 over the shoulder. On the contrary, the game image obtained from the second virtual camera 300B 'is over the shoulder of the second character OB2. This is an image in which the first character OB1 is projected obliquely from the front.

  In this embodiment, the point symmetry control of the virtual camera is performed while maintaining the Z-axis coordinate value Zh of the first and second virtual cameras 300A and 300B at the same value as the Z-axis coordinate value of the reference point M. FIG. 8 shows an example in which the Z-axis coordinate value Zh is changed on condition that both the Z-axis coordinate values of the first and second virtual cameras 300A and 300B are controlled to the same value. As described above, the first and second virtual cameras 300A and 300B may be three-dimensionally symmetrically controlled so that the XY coordinate values in the XY plane are arranged point-symmetrically with respect to the reference point M.

(Linear symmetry control of virtual camera)
Next, the line symmetry control of the first and second virtual cameras 300A and 300B will be described.

  In FIG. 5, the first and second virtual cameras 300A and 300B are arranged at positions that are line-symmetric via the reference line L10. Then, the position and orientation of the first and second virtual cameras 300A and 300B are controlled such that the positions of the first and second virtual cameras 300A and 300B are symmetrical with respect to the reference line L10.

  In the present embodiment, such line symmetry control is performed so that the first and second virtual cameras 300A and 300B are line-symmetric with respect to the reference line L10 in the XY-dimensional plane including the reference line L10. You may. In this case, it is preferable to control the attitude of the first and second virtual cameras 300A and 300B so that the line of sight of each of the virtual cameras 300A and 300B faces the reference point M.

  FIG. 7 shows an example of the line symmetry control. Here, an example will be described in which the line symmetry control is performed while maintaining the Z-axis coordinate value in the height direction of the first and second virtual cameras 300A and 300B at the same value Zh as the Z coordinate value of the reference point M. .

  In the present embodiment, in the XY-dimensional plane including the reference point M, the first and second virtual cameras 300A and 300B are arranged line-symmetrically on a line including the reference point M and orthogonal to the reference line L10. You. This arrangement is the basic arrangement of the line symmetry control.

  Further, the imaging range 400 of the first and second virtual cameras 300 is set and controlled such that the first and second characters OB1 and OB2 are displayed on the game screen so as to face left and right.

  Thus, in the game screen shot by the first virtual camera 300A, the basic standing position of the first character OB1 is on the left, and the basic standing position of the second character OB2 is on the right.

  In the game image captured by the second virtual camera 300B, the basic standing positions of the characters OB1 and OB2 are opposite to those of the first virtual camera 300A. That is, the basic standing position of the first character OB1 is on the right, and the basic standing position of the second character OB2 is on the left.

  In the present embodiment, if necessary, the movement of the first and second virtual cameras 300A and 300B may be controlled along a given movement path while maintaining the line symmetry with respect to the reference line L10. . In this case, it is preferable to control the positions and orientations of the first and second virtual cameras 300A and 300B so that the line of sight of each of the virtual cameras 300A and 300B faces the reference point M.

  For example, when the movement of the first and second virtual cameras 300A and 300B is controlled while maintaining the line symmetric state at the positions of 300A 'and 300B' in FIG. 7, the first virtual camera and the second virtual camera The game images obtained from 300A 'and 300B' are images in which the first character OB1 is projected obliquely from the front over the shoulder of the second character OB2.

In this embodiment, the line symmetry control of the virtual camera is performed while maintaining the Z-axis coordinate value Zh of the first and second virtual cameras 300A and 300B at the same value as the Z-axis coordinate value of the reference point M. Although the case has been described as an example, while changing the Z-axis coordinate value Zh under the condition that the Z-axis coordinate values of the first and second virtual cameras 300A and 300B are controlled to the same value, as shown in FIG. The first and second virtual cameras 300A and 300B may be three-dimensionally symmetrically controlled so that the XY coordinate values in the XY plane are arranged symmetrically about the reference line L10.

(Plane symmetry control of virtual camera)
Next, plane symmetry control of the first and second virtual cameras 300A and 300B will be described.

  In FIG. 5, the first and second virtual cameras 300A and 300B are arranged at positions that are plane-symmetric via the reference plane S. Then, the position and orientation of the first and second virtual cameras 300A, 300B are controlled such that the positions of the first and second virtual cameras 300A, 300B are plane-symmetric via the reference plane S.

  The plane symmetry control of the present embodiment is performed while changing the Z-axis coordinate value Zh on the condition that the Z-axis coordinate values of the first and second virtual cameras 300A and 300B are controlled to the same value. 5 by controlling the first and second virtual cameras 300A and 300B three-dimensionally so that the XY coordinate values in the XY plane are arranged line-symmetrically about the reference line L10 as shown in FIG. Will be This is one mode of the line symmetry control described above.

  Further, if necessary, the movement of the first and second virtual cameras 300A and 300B may be controlled along a given movement path while maintaining the plane-symmetric state with respect to the reference plane S. In this case, it is preferable to control the positions and orientations of the first and second virtual cameras 300A and 300B so that the line of sight of each of the virtual cameras 300A and 300B faces the reference point M.

4. Next, a method according to the present embodiment will be described.

(Selection command)
The game machine 10 of the present embodiment determines whether the basic standing position of the player's character on the game screen is to the right or left of the basic standing position of the opponent's character based on the player's selection instruction. The configuration is adopted.

  The player's own selection instruction is stored as selection instruction data 174a in the selection instruction data storage unit 174, and transmitted to another game machine to be played. Also, selection instruction data selected by the player of the other game machine is received from another game machine to be played, and is stored in the selection instruction data storage unit 174 as opponent selection instruction data 174b.

  Then, any one of the first and second virtual cameras 300A and 300B corresponding to the basic standing position determined by the player's own selection instruction shoots an image on the display 20 of each of the game machines 10 to compete with. The image of the object space is displayed as a game image.

  Thereby, each player who is competing can arbitrarily set the basic standing position of the character OB1 of his own device to either the right side or the left side and display it as a game screen. You can enjoy fighting games.

(Operation code data)
Further, the game machine 10 according to the present embodiment receives an input signal from the operation unit 30, specifically, an input signal from the lever 32 for instructing the movement of the character OB to the front, rear, left and right, and from the buttons 34, 36, and 38. Is written in the operation code data storage unit 176 as the operation code data 176a of the game machine at every predetermined cycle (for example, 1/60 second), and transmitted to another game machine to be an opponent. Similarly, the operation code data 176b of another game machine transmitted from another game machine to be played is written and stored in the operation code data storage unit 176 every predetermined cycle.

  In the present embodiment, as described above, in each of the game machines 10, the player can select the basic standing position of the character OB1 on the right or left side of the game screen. For this reason, when the basic standing position of the player character OB is selected on the right side of the screen and when it is selected on the left side, for example, the direction input instruction of the lever 32 in the left-right direction is reversed.

  For this reason, in the game machine 10 of the present embodiment, the character control unit 112a sends the direction input instructions included in the operation code data 176a and 176b of the own machine and the other machines, in particular, Other device selection instruction data 174a. Based on 174b, the data is converted into data of direction designation in the world coordinate system of the object space, interpreted, and controls the characters OB1, OB2.

  Thereby, each player who fights can operate his or her own character without discomfort while watching the game screen.

(Control of virtual camera)
Furthermore, in the game machine 10 of the present embodiment, the first and second virtual cameras are point-symmetric, line-symmetric, or plane-symmetric with respect to the reference point M, the reference line L10, or the reference plane S in the object space. It controls 300A and 300B. In particular, in the present embodiment, the first and second virtual cameras 300A and 300B are set to one of the point symmetric control mode, the line symmetric control mode, and the plane symmetric control mode according to the progress of the game. Control is performed by appropriately selecting a mode.

  By switching the control mode of the virtual camera as described above, it is possible to provide a game image with a high effect of rendering in accordance with the progress of the game.

5. Next, an example of a process of the game system according to the present embodiment will be described with reference to a flowchart of FIG. 11 (Steps S10 to S20).

  First, when a player applies for a fighting game using the game machine 10 of the present embodiment (step S10), an application signal is transmitted to the game server 2 via the network N, and the game server 2 The other game machine 10 to be the opponent of the machine 10 is determined, and a notification to that effect is sent to both game machines 10 to be competing (step S12).

  At this time, the game server 2 may transmit an ID or the like identifying the two game machines 10 to be played to the two game machines 10, or the two game machines 10 to be played may exchange IDs.

  When the opponent is determined in this way, the game screen of each game machine 10 is displayed on the game screen of each game machine 10 to allow each player to select the basic standing position of the characters OB1 and OB2 of each game machine 10 as shown in FIG. A selection screen is displayed.

  Hereinafter, a case where the player selects the basic standing position of the character OB1 of one game machine 10 will be described as an example.

  The player uses the lever 32 to select either "LEFT" or "RIGHT" (Step S14).

  When “LEFT” in FIG. 9A is selected, the basic standing position of the character OB1 of the game machine 10 is set on the left side of the game screen, and “RIGHT” is set as shown in FIG. When selected, the basic standing position of the player character's OB1 in the game screen is set on the right side of the screen.

  The selection instruction data of each player input as described above is written and stored in the selection instruction data storage unit 174 of the own device as the selection instruction data 174a of the own device, and the other game machine as an opponent is also stored. (Step S16). At this time, the selection instruction data of the other game machine is also received from the other game machine 10 to be competed, and is written and stored in the selection instruction data storage unit 174 as the opponent selection instruction data 174b.

  When the basic standing position of the character OB1 of the own device is input in this way, the virtual camera control unit 117 of each game device 10 performs the first and second virtual camera based on the selection instruction data 174a of the own device. 300A. It is determined which of the virtual cameras of 300B should use the signal (step S18).

  For example, when the player of the game machine 10 gives a selection instruction to set the basic standing position of the character OB1 of the game machine 10 to the left side, the video from the first virtual camera 300A is selected as the game image and displayed on the display 20. For example, as shown in FIG. 10A, a game image in which the basic standing position of the character OB1 is on the left side is displayed.

  In addition, when a selection instruction to display the basic standing position of the character OB1 of the game machine 10 on the right side of the screen is performed, the video from the second virtual camera 300B is selected as the game image, and the game machine 10 On the display 20, for example, as shown in FIG. 10B, a game image in which the basic standing position of the character OB1 is on the right side is displayed.

  When such a series of processing is completed, a fighting game between the respective game machines 10 to compete with each other is started (step S20).

  A character OB1 of the player's own device and a character OB2 of another device are displayed on the game machine 10 of each player who is competing against each other, and the player operates the operation unit 30 while watching this game screen, and The game can be enjoyed by operating the character OB1 or OB2.

  At this time, according to the present embodiment, the player of each game machine 10 selects and displays the basic standing position of the character OB of the game machine 10 at an arbitrary position on the right or left side of the screen according to the player's preference. Therefore, each player can display his or her own character OB1 at the position of his / her best basic standing position and enjoy the game.

  Each game machine 10 transmits and receives an operation signal operated by each player via the operation unit 30 as operation code data 176a and 176b at predetermined cycles (for example, 1/60 second). Using these transmission / reception data, each game machine 10 individually calculates each object space, and displays this as a game screen. As described above, since the operation code data 176a and 176b only need to be transmitted and received between the two game machines 10, the amount of data to be transmitted and received is small, and the competitive game can be enjoyed almost in real time (steps S30 to S60).

  In the present embodiment, when the game is started, the first and second virtual cameras 300A and 300B are switched to one of point symmetry control and plane symmetry control according to the progress of the game.

(Point symmetric control)
For example, in the battle defense mode (step S30) in which both players control the characters OB1 and OB2 of their own devices using the operation unit 30 and play a game while instructing input of attack and defense (step S30). The second virtual cameras 300A and 300B are controlled so as to be point-symmetric with respect to the reference point M (step S40).

  In such an attack and defense mode, the characters OB1 and OB2 fighting each other perform the attack defense while moving two-dimensionally or three-dimensionally in the object space according to the input of each player.

  For example, as shown in FIG. 6, when the first and second characters OB1 and OB2 move to the positions of OB1 ′ and OB2 ′ in the object space, the positions of the reference points and the reference lines are changed accordingly. Move from M, L10 to the position of M ', L10'.

  Following the movement of the first and second characters OB1 and OB2, the first and second virtual cameras 300A and 300B are also controlled to follow the new reference point M 'in a point-symmetrical manner. Is done.

  At this time, if the first and second virtual cameras 300A and 300B are controlled to follow point-symmetric positions completely in synchronization with the movement of each of the characters OB1 and OB2, camera work may be too fast. Occur. For this reason, in the present embodiment, a configuration is employed in which the following control is performed to make the movement and the direction change of the first and second virtual cameras 300A and 300B slow when the characters OB1 and OB2 move. For example, by adopting a configuration in which changes in the movement and direction of the first and second virtual cameras 300A and 300B are moderately controlled using a virtual dambar, a game image that is easy for each player to see can be provided.

  As described above, in the attack / defense mode in which each player controls the characters OB1 and OB2 of the player and inputs the attack / defense, the characters OB1 and OB2 are equally displayed on the left and right in the game screen. As described above, the first and second virtual cameras 300A and 300B are controlled point-symmetrically with respect to the reference point M. As a result, both characters OB1 and OB2 are displayed on the game machine 10 of each player in an easily viewable manner, and each player can easily perform an attack / defense operation on the characters OB1 and OB2 of the player.

  In such an attack defense mode, as described above, the first and second virtual cameras 300A and 300B are basically controlled by point symmetry to a position orthogonal to the reference line L10. Depending on the situation, for example, first and second virtual cameras 300A as shown in FIG. Point symmetric control may be performed at positions 300A 'and 300B' that obliquely intersect 300B with reference line L10.

  Accordingly, for example, an image of the character OB of the player's own device obliquely viewed from the front can be displayed over the shoulder of the character OB of the opponent.

(Line symmetry control)
Further, in one example of the present embodiment, when the attack input of one of the players succeeds, each of the characters OB1 and OB2 in the object space switches to the attack effect mode automatically controlled according to the corresponding attack motion data (step S32). For example, if one player operates the character OB1 of the player's own device and succeeds in a continuous attack input such as a combo, the character OB1 of the player's own device performs a continuous attack corresponding to the character OB2 of the opponent according to a given motion program. Switch to production mode.

  In the attack effect mode (step S32), the first and second virtual cameras 300A and 300B are controlled so as to be symmetric with respect to the reference line L10.

  For example, when one character OB1 switches to the attack effect mode in which the corresponding character OB2 performs a corresponding continuous attack according to a given operation program, the first and second virtual cameras 300A and 300B become as shown in FIG. Then, line-symmetric control is performed from the positions indicated by 300A and 300B in the figure to the positions indicated by 300A 'and 300B'.

  Thereby, a series of motions in which one character OB1 makes a corresponding continuous attack on the opponent character OB2 in accordance with a given motion program is displayed as a game image viewed from the oblique front of one character OB1, and provided. The effect of producing images can be enhanced.

(Camera gaze control)
Further, when one character OB1 completes a series of continuous attacks on the opponent character OB2 and one character OB1 wins the other character OB2, the winning character OB1 poses for victory according to given motion data. Is performed, and an effect in the camera looking mode is performed, in which an expression accompanied by the winning camera looking is performed (step S34). When the effect in the camera look mode is started, camera look control is performed to capture the camera look of one character OB1 that has won the third virtual camera (not shown) (step S60).

  By performing such a winning effect, it is possible to provide a game image with a higher effect.

  In the present embodiment, such a series of processes (steps S30 to S34, S40, S50, and S60) are repeatedly performed until the game ends (step S36).

  As described above, by performing a series of controls of the virtual camera, it is possible to provide a game image in which the player can easily operate the character and has a high effect of rendering.

6. Other Examples The present invention is not limited to the embodiment described above, and various modifications can be made. For example, a term cited as a broad or synonymous term in the description in the specification or the drawings can be replaced with a broad or synonymous term in other descriptions in the specification or the drawings.

  The invention includes substantially the same configuration (for example, a configuration having the same function, method, and result, or a configuration having the same object and effect) as the configuration described in the embodiment. Further, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. Further, the invention includes a configuration having the same function and effect as the configuration described in the embodiment or a configuration capable of achieving the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment. Note that the examples described in the present embodiment can be freely combined.

  In the present invention, the game machine is not limited to a business game machine, but may be a home game machine, a mobile phone, a portable terminal, or a portable game machine.

OB1, OB2 Object character (character), M reference point, L10 reference line, S: Reference plane, P1, P2 First and second positions, 10 game machine, 20 display, 30 operation unit, 32 lever, 34, 36 , 37, 38 buttons, 100 processing unit, 110 standing position selection unit, 111 object space setting unit, 112 movement / motion control unit, 112a character control unit, 113 operation code transmission / reception control unit, 114 communication control unit, 115 game calculation unit , 116 display control section, 117 virtual camera control section, 120 drawing section, 160 operation section, 170 main storage section, 174 selection instruction data storage section, 174a own apparatus selection instruction data, 174b other apparatus selection instruction data, 176 operation Code data storage unit, 176a Operation code data of own machine, 176b Operation code data of other machine Data, 180 information storage medium, 190 display unit, 300A, 300B first and second virtual cameras, 400 imaging range

Claims (6)

A first game machine and a second game machine, in which operation information of a first character controlled by an operation of a first player and operation information of a second character controlled by an operation of a second player are mutually transmitted and received. The game machine in a game system that executes a game in which the first character and the second character compete in the object space, the game machine comprising:
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
A virtual camera control unit that controls a virtual camera that captures at least one of the first character and the second character based on the position of at least one of the first character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
A position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent's character based on the player's selection instruction;
Including
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
A game machine for determining which of the first and second virtual cameras an object space photographed by a virtual camera is to be displayed as a game image based on the basic standing position determined by the position selector. In claim 1,
The virtual camera controller,
A game machine for switching the positions of the first and second virtual cameras to point symmetry, line symmetry, or plane symmetry in accordance with a battle situation between the first character and the second character that compete. In any one of claims 1 and 2,
The operation information of the first character and the operation information of the second character transmitted and received between the first game machine and the second game machine include information of the selection instruction received by each game machine,
The character control unit includes:
The operation information of the first character and the movement instruction information included in the operation information of the second character are converted into movement instruction information in the world coordinate system of the object space based on the selection instruction of the own device and the other device. A game machine that performs processing. In a game system that executes a game in which a first character controlled by an operation of a first player and a second character controlled by an operation of a second player play a match.
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
The first character is set based on the position of at least one of the first character and the second character.
A virtual camera control unit that controls a virtual camera that captures at least one of the character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
A position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent's character based on the player's selection instruction;
Including
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
A game system for determining which of the first and second virtual cameras an object space photographed by a virtual camera is to be displayed as a game image based on the basic standing position determined by the position selector. A first game machine and a second game machine, in which operation information of a first character controlled by an operation of a first player and operation information of a second character controlled by an operation of a second player are mutually transmitted and received. A program that causes a computer to function as the game machine in a game system that executes a game in which the first character and the second character compete in an object space.
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
A virtual camera control unit that controls a virtual camera that captures at least one of the first character and the second character based on the position of at least one of the first character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
The computer functions as a position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent character based on the player's selection instruction,
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
A program for determining which of the first and second virtual cameras an object space photographed by the virtual camera should be displayed as a game image based on the basic standing position determined by the position selector. A program that causes a computer to function as a game system that executes a game in which a first character controlled by an operation of a first player and a second character controlled by an operation of a second player play a match,
A character control unit that controls the first character and the second character in an object space based on the operation information of the first character and the operation information of the second character;
A virtual camera control unit that controls a virtual camera that captures at least one of the first character and the second character based on the position of at least one of the first character and the second character;
A display control unit for displaying the object space captured by the virtual camera as a game image,
The computer functions as a position selection unit that determines whether the basic standing position of the player's character in the game image is on the right side or the left side with respect to the basic standing position of the opponent character based on the player's selection instruction,
The virtual camera controller,
A first and second reference point, a reference line, or a reference plane defined by a first position associated with the first character and a second position associated with the second character in an object space. Are arranged so as to be symmetrical, and the first and second virtual cameras are controlled such that the positions of the first and second virtual cameras are point-symmetric, line-symmetric or plane-symmetric,
A program for determining which of the first and second virtual cameras an object space photographed by the virtual camera should be displayed as a game image based on the basic standing position determined by the position selector.