JP4791514B2 - Image processing apparatus, image processing apparatus control method, and program - Google Patents

Description

  The present invention relates to an image processing apparatus, a control method for the image processing apparatus, and a program.

In the three-dimensional image processing, a state in which a virtual three-dimensional space in which objects are arranged is viewed from a given viewpoint is displayed and output. In the field of such three-dimensional image processing, for example, a technique described in Patent Literature 1 is a technique for suitably expressing a state in which a moving object collides with a collided object that is deformed by the collision of the moving object. There is.
Japanese Patent No. 3768971

  Conventionally, behavior control of a moving object when the moving object collides with a collided object has been realized exclusively on the program side. For this reason, it has been difficult for a person other than the programmer, for example, a person who designs the shape of the collided object to participate in the behavior control of the moving object when the colliding object collides with the collided object.

  The present invention has been made in view of the above problems, and its purpose is to control the behavior of a moving object when the moving object collides with a collided object. It is an object of the present invention to provide an image processing apparatus, a method for controlling the image processing apparatus, and a program that make it easier for a person who designs the image to be involved.

  In order to solve the above problems, an image processing apparatus according to the present invention arranges a moving object and a collided object that is deformed when the moving object collides, in the virtual three-dimensional space, and In an image processing apparatus for displaying an image representing a state in which an object collides with the collided object, a plurality of behavior control units arranged in a space on the back side of a surface of the collided object collided by the moving object Acceleration vector information storage means for storing acceleration vector information for specifying an acceleration vector of the moving object by a force applied to the moving object by the collision object in association with each of the objects, and the moving object Contact between the object and the plurality of behavior control objects A determination means for determining whether or not the mobile object has contacted at least one of the plurality of behavior control objects, and is associated with the at least one behavior control object. Moving object behavior control means for controlling the behavior of the moving object based on an acceleration vector specified by the acceleration vector information.

  In the image processing apparatus control method according to the present invention, a moving object and a collision object that is deformed when the moving object collides are arranged in a virtual three-dimensional space, and the moving object is In a control method of an image processing apparatus for displaying an image representing a state of colliding with a collided object, a plurality of behavior control units arranged in a space on the back side of a surface of the collided object colliding with the moving object Corresponding to each object, the stored content of the acceleration vector information storage means for storing acceleration vector information for specifying the acceleration vector of the moving object by the force applied to the moving object by the colliding object is read. A step, the moving object, and the plurality of behaviors A determination step for determining whether or not the control object has touched; and when it is determined that the mobile object has touched at least one of the plurality of behavior control objects, the at least one behavior control And a moving object behavior control step for controlling the behavior of the moving object based on the acceleration vector specified by the acceleration vector information associated with the object.

  The program according to the present invention arranges a moving object and a collided object that is deformed when the moving object collides, in a virtual three-dimensional space, and the moving object collides with the collided object. As an image processing device that displays an image representing a state of performing, for example, a home game machine, a portable game machine, an arcade game machine, a mobile phone, a personal information terminal (PDA), a program for causing a computer such as a personal computer to function The object to be collided is associated with each of a plurality of behavior control objects arranged in the back side of the surface of the collided object that is collided by the moving object, and the moving object by the collided object. The acceleration vector of the moving object due to the force applied to the Acceleration vector information storage means for storing acceleration vector information for specifying the object, determination means for determining whether or not the moving object and the plurality of behavior control objects have contacted, and the moving object Is determined to have contacted at least one of the plurality of behavior control objects, based on the acceleration vector specified by the acceleration vector information associated with the at least one behavior control object, This is a program for causing the computer to function as a moving object behavior control means for controlling the behavior of a moving object.

  An information storage medium according to the present invention is a computer-readable information storage medium recording the above program. A program distribution apparatus according to the present invention is a program distribution apparatus that includes an information storage medium that records the program, reads the program from the information storage medium, and distributes the program. The program distribution method according to the present invention is a program distribution method for reading and distributing the program from an information storage medium storing the program.

  The present invention arranges a moving object and a collided object that is deformed when the moving object collides, in a virtual three-dimensional space, and displays an image representing a situation in which the moving object collides with the collided object. The present invention relates to an image processing apparatus. In the present invention, acceleration vector information is stored in association with each of a plurality of behavior control objects arranged in a space on the back side of the surface of the collided object that is collided by the moving object. The acceleration vector information is information for specifying the acceleration vector of the moving object by the force applied to the moving object by the collision object. Here, the acceleration vector information may be information indicating the acceleration vector itself, or may be information serving as a basis for calculating the acceleration vector. Further, in the present invention, it is determined whether or not the moving object and the plurality of behavior control objects are in contact with each other. When it is determined that the mobile object has contacted at least one of the plurality of behavior control objects, the acceleration vector specified by the acceleration vector information associated with the at least one behavior control object Based on this, the behavior of the moving object is controlled. According to the present invention, for example, a person who designs the shape or the like of a collided object includes a behavior control object and acceleration vector information associated with the behavior control object in accordance with the shape or the like of the collided object. It is possible to set the data, and the data can be produced as the data of the collided object together with the shape data of the collided object. As a result, for example, a person who designs the shape or the like of the collided object is likely to be involved in behavior control of the moving object when the moving object collides with the collided object.

  Further, in one aspect of the present invention, the bounce control information indicating whether or not the moving object is repelled by the behavior control object is stored in association with each of the plurality of behavior control objects. Control information storage means may be included. Further, the object behavior control means is configured such that the rebound control information associated with the behavior control object determined to have contacted the mobile object is reverted by the behavior control object. In this case, it is possible to include means for controlling the behavior of the moving object, assuming that the moving object is rebounded by the behavior control object with a given bounce coefficient.

  In the aspect of the invention, the determination unit includes a reference position setting unit that sets a reference position by executing a predetermined calculation based on a current position of the moving object, and is set by the reference position setting unit. By determining whether or not the straight line from the determined reference position to the current position of the moving object intersects with the plurality of behavior control objects, the moving object and the plurality of behavior control objects It may be determined whether or not they have contacted each other.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. Here, an example will be described in which the present invention is applied to a game device which is an embodiment of an image processing device. The present invention can also be applied to an image processing apparatus other than a game apparatus.

  FIG. 1 is a diagram showing a configuration of a game device according to an embodiment of the present invention. A game apparatus 10 shown in FIG. 1 is mainly composed of a consumer game machine 11. The consumer game machine 11 is loaded with a DVD-ROM 25 and a memory card 28 as information storage media. Furthermore, a monitor 18 and a speaker 22 are connected to the consumer game machine 11. For example, a home television receiver is used for the monitor 18, and its built-in speaker is used for the speaker 22.

  The home game machine 11 includes a bus 12, a microprocessor 14, an image processing unit 16, an audio processing unit 20, a DVD-ROM playback unit 24, a main memory 26, an input / output processing unit 30, and a controller 32. It is a computer game system. Components other than the controller 32 are accommodated in a housing.

  The bus 12 is for exchanging addresses and data among the units of the consumer game machine 11. The microprocessor 14, the image processing unit 16, the main memory 26, and the input / output processing unit 30 are connected by the bus 12 so that mutual data communication is possible.

  The microprocessor 14 controls each part of the consumer game machine 11 based on an operating system stored in a ROM (not shown), a game program and game data read from the DVD-ROM 25 and the memory card 28. The main memory 26 includes, for example, a RAM, and game programs and game data read from the DVD-ROM 25 and the memory card 28 are written as necessary. The main memory 26 is also used for work of the microprocessor 14.

  The image processing unit 16 includes a VRAM. The image processing unit 16 receives the image data sent from the microprocessor 14, draws a game screen on the VRAM, converts the content into a predetermined video signal, and outputs it to the monitor 18 at a predetermined timing.

  The input / output processing unit 30 is an interface for the microprocessor 14 to access the audio processing unit 20, the DVD-ROM playback unit 24, the memory card 28, and the controller 32. An audio processing unit 20, a DVD-ROM playback unit 24, a memory card 28 and a controller 32 are connected to the input / output processing unit 30.

  The sound processing unit 20 is configured to include a sound buffer, and reproduces various sound data such as game music, game sound effects, and messages read from the DVD-ROM 25 and stored in the sound buffer, from the speaker 22. Output.

  The DVD-ROM playback unit 24 reads game programs and game data recorded on the DVD-ROM 25 in accordance with instructions from the microprocessor 14. Here, the DVD-ROM 25 is used to supply the game program and game data to the consumer game machine 11, but any other information storage medium such as a CD-ROM or a ROM card may be used. Moreover, you may make it supply a game program and game data to the consumer game machine 11 from a remote place via data communication networks, such as the internet.

  The memory card 28 includes a nonvolatile memory (for example, EEPROM). The home game machine 11 includes a plurality of memory card slots for installing the memory card 28. The memory card 28 is used for storing various game data such as saved data.

  The controller 32 is general-purpose operation input means for the player to input various game operations. The input / output processing unit 30 scans the state of each unit of the controller 32 at regular intervals (for example, every 1/60 seconds), and passes an operation signal representing the scan result to the microprocessor 14 via the bus 12. The microprocessor 14 determines the player's game operation based on the operation signal. The home game machine 11 is configured so that a plurality of controllers 32 can be connected.

  In the game device 10 having the above configuration, for example, a soccer game is realized by executing a program read from the DVD-ROM 25.

  In order to realize the soccer game, a virtual three-dimensional space is constructed in the main memory 26. FIG. 2 is a diagram illustrating an example of a virtual three-dimensional space. As shown in FIG. 2, a field object 42 representing a soccer field and a goal object 44 representing a goal are arranged in the virtual three-dimensional space 40 to form a soccer game venue. For example, the goal line 43 is represented in the field object 42. On the field object 42, a player object 46 representing a soccer player and a ball object 48 (moving object) representing a soccer ball are arranged. Although omitted in FIG. 2, 22 player objects 46 are arranged on the field object 42.

  FIG. 3 is a perspective view showing an example of the goal object 44. As shown in FIG. 3, the goal object 44 includes a frame including two goal posts 52 and a crossbar 54, a goal net 56 (a collision object) stretched on the frame, , Including. The goal net 56 is fixed to, for example, the goal post 52, the cross bar 54, and the ground behind the goal object 44 (the field object 42) while giving a certain amount of slack. FIG. 4 is a view showing a part of the goal net 56. Although the mesh structure of the goal net 56 is not illustrated in detail in FIG. 3, the goal net 56 has a hexagonal mesh structure as shown in FIG. In the following, each vertex of the hexagonal mesh is referred to as a “node”.

  A virtual camera 50 (viewpoint and line-of-sight direction) is set in the virtual three-dimensional space 40. The virtual camera 50 follows the ball object 48, for example. A game screen showing the virtual three-dimensional space 40 viewed from the virtual camera 50 is displayed on the monitor 18.

  Hereinafter, a technique for expressing the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56 will be described. That is, when the ball object 48 collides with the goal net 56, the manner in which the movement of the ball object 48 is braked by the goal net 56 and the manner in which the goal net 56 swings due to the collision with the ball object 48 are expressed. The technique for this is demonstrated.

  First, functions realized by the game apparatus 10 will be described. FIG. 5 is a functional block diagram mainly showing functions related to the present invention among the functions realized in the game apparatus 10. As shown in FIG. 5, the game apparatus 10 functionally includes a game data storage unit 60, a determination unit 62, and an object behavior control unit 64. These functions are realized by the program read from the DVD-ROM 25 being executed by the game apparatus 10 (microprocessor 14).

  The game data storage unit 60 is realized mainly by the DVD-ROM 25 and the main memory 26. The game data storage unit 60 stores various data for realizing the soccer game. The game data storage unit 60 stores information indicating the basic shape of each object arranged in the virtual three-dimensional space 40. The game data storage unit 60 stores information indicating the current state of each object placed in the virtual three-dimensional space 40. For example, the game data storage unit 60 stores information indicating the position, posture, and shape of a static object such as the goal object 44 or a behavior control object described later. Further, for example, the game data storage unit 60 stores information indicating the position, posture, and moving speed vector (moving direction and speed) of dynamic objects such as the player objects 46 and the ball objects 48. In addition, the game data storage unit 60 stores information indicating the position (viewpoint position) and posture (gaze direction) of the virtual camera 50.

  The game data storage unit 60 includes a behavior control information storage unit 60a (acceleration vector information storage means, bounce control information storage means). The behavior control information storage unit 60a stores behavior control information. The behavior control information is information serving as a basis for behavior control of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56.

  In the game apparatus 10, a plurality of behavior control objects are arranged in the virtual three-dimensional space 40 in order to control the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56. FIG. 6 is a perspective view showing an example of a behavior control object. As shown in FIG. 6, the behavior control object 70 is a plate-like rectangular object. The behavior control object 70 is an invisible (transparent) object and is not displayed on the game screen. Further, the behavior control object 70 is distinguished from the front side and the back side. 7 and 8 show examples of arrangement of the behavior control objects 70. FIG. 7 and 8, the goal object 44 and the goal line 43 are indicated by dotted lines in order to make the arrangement state of the behavior control object 70 easy to understand.

  FIG. 7 shows a behavior control object arranged to control the behavior of the ball object 48 and the goal net 56 when the ball object 48 enters the goal object 44 and collides with the inner surface of the front surface 56a of the goal net 56. An example of 70 is shown. The behavior control object 70 shown in FIG. 7 is arranged in a space on the outer surface side of the front surface 56 a of the goal net 56. A plurality of behavior control objects 70 shown in FIG. 7 are arranged at regular intervals so as to gradually move away from the goal net 56. The behavior control object 70 shown in FIG. 7 is arranged substantially parallel to the front surface 56 a of the goal net 56. The behavior control object 70 shown in FIG. 7 is arranged so that the front side faces the front surface 56 a of the goal net 56. The area of the behavior control object 70 shown in FIG. 7 is set to be equal to the area of the front surface 56 a of the goal net 56 or wider than the area of the front surface 56 a of the goal net 56.

  FIG. 8 shows a behavior control object arranged to control the behavior of the ball object 48 and the goal net 56 when the ball object 48 enters the goal object 44 and collides with the inner surface side of the side surface 56b of the goal net 56. An example of 70 is shown. The behavior control object 70 shown in FIG. 8 is arranged in a space on the outer surface side of the side surface 56 b of the goal net 56. A plurality of behavior control objects 70 shown in FIG. 8 are also arranged at regular intervals so as to gradually move away from the goal net 56. Further, the behavior control object 70 shown in FIG. 8 is disposed substantially parallel to the side surface 56 b of the goal net 56. The behavior control object 70 shown in FIG. 8 is arranged so that the front side thereof faces the side surface 56 b of the goal net 56. The area of the behavior control object 70 shown in FIG. 8 is set to be equal to the area of the side face 56b of the goal net 56 or wider than the area of the side face 56b of the goal net 56.

  The behavior control information storage unit 60a stores behavior control information in association with each of the behavior control objects 70. FIG. 9 shows an example of a behavior control table stored in the behavior control information storage unit 60a. As shown in FIG. 9, the behavior control table includes an “ID” field, a “reaction force coefficient” field, and a “bounce flag” field. In the “ID” field, an ID (identification information) for uniquely identifying the behavior control object 70 is stored. Here, IDs “1”, “2”, “3”, and “4” are assigned to the behavior control object 70 shown in FIG. 7 in order from the one closest to the goal net 56. Shall. The “reaction force coefficient” field stores a reaction force coefficient (acceleration vector information). The reaction force coefficient is numerical information indicating the strength of the force (reaction force) applied by the goal net 56 to the ball object 48 colliding with the goal net 56. As will be described later, the acceleration vector of the ball object 48 resulting from the force applied to the ball object 48 by the goal net 56 is specified based on this reaction force coefficient (see S205 and S206 in FIG. 11). In the “springback flag” field, a springback flag (springback control information) is stored. The bounce flag is information indicating whether or not the ball object 48 is rebounded by the behavior control object 70 when the ball object 48 contacts the behavior control object 70. When the ball object 48 is rebounded by the behavior control object 70, the value of the “rebound flag” field is set to 1. On the other hand, when the ball object 48 is not rebounded by the behavior control object 70, the value of the “rebound flag” field is set to 0. In the present embodiment, in each of FIGS. 7 and 8, the value of the “bounce flag” field of the behavior control object 70 farthest from the front surface 56a or the side surface 56b of the goal net 56 is set to 1, The value of the “bounce flag” field of the behavior control object 70 is set to 0.

  The determination unit 62 is realized mainly by the microprocessor 14. The determination unit 62 determines whether or not the ball object 48 has contacted the behavior control object 70. Details will be described later (see S202 and S203 in FIG. 11).

  The object behavior control unit 64 is realized mainly by the microprocessor 14. The object behavior control unit 64 controls the behavior of each object arranged in the virtual three-dimensional space 40. That is, the object behavior control unit 64 controls the position, posture, shape, and the like of each object arranged in the virtual three-dimensional space 40. The object behavior control unit 64 includes a ball object behavior control unit 64a and a goal net behavior control unit 64b.

  The ball object behavior control unit 64 a controls the behavior of the ball object 48 when the ball object 48 collides with the goal net 56. When it is determined that the ball object 48 has touched the behavior control object 70, the ball object behavior control unit 64a controls the behavior of the ball object 48 based on the behavior control information associated with the behavior control object 70. Execute. Details will be described later (see S203 to S208 in FIG. 11).

  The goal net behavior control unit 64b executes behavior control (deformation control) of the goal net 56 when the ball object 48 collides with the goal net 56. The goal net behavior control unit 64b executes behavior control of the goal net 56 based on the position of the ball object 48 controlled by the ball object behavior control unit 64a. Details will be described later (see S209 in FIG. 11).

  Next, processing executed by the game apparatus 10 will be described. FIG. 10 is a flowchart showing processing executed by the game apparatus 10 every predetermined time (for example, 1/60 seconds).

  As shown in FIG. 10, the game apparatus 10 first executes a game environment process (S101). In the game environment process, the state (position, posture, moving direction vector, shape, etc.) of each object arranged in the virtual three-dimensional space 40 is calculated. And the information which shows the state of each object memorize | stored in the game data memory | storage part 60 is updated based on the calculation result. In the game environment processing, the position, orientation, and angle of view of the virtual camera 50 are determined, and the visual field range is calculated. Objects that do not belong within the field of view are excluded from the subsequent processing.

  Thereafter, the game apparatus 10 performs geometry processing (S102). In the geometry processing, coordinate conversion from the world coordinate system to the viewpoint coordinate system is performed. Here, the world coordinate system is a coordinate system including the Xw axis, the Yw axis, and the Zw axis shown in FIG. The viewpoint coordinate system is a coordinate system in which the position (viewpoint) of the virtual camera 50 is the origin, the front direction (line-of-sight direction) of the virtual camera 50 is the Z direction, the horizontal direction is the X direction, and the vertical direction is the Y direction. In the geometry processing, clipping processing is also performed.

  Thereafter, the game apparatus 10 performs a rendering process (S103). In the rendering process, a game screen is drawn on the VRAM based on the coordinates, color information, and alpha value of each vertex of each object in the visual field range, and a texture image mapped to the surface of each object in the visual field range. The The game screen drawn on the VRAM is displayed and output on the monitor 18 at a given timing.

  Here, a process executed when the ball object 48 collides with the goal net 56 will be described. FIG. 11 is a flowchart showing processing executed when the ball object 48 collides with the goal net 56. This process is executed as a part of the game environment process (S101 in FIG. 10). Each function block shown in FIG. 5 is realized by reading a program for executing this processing from the DVD-ROM 25 and executing it by the game apparatus 10 (microprocessor 14).

  As shown in FIG. 11, the game apparatus 10 first determines which face (front face 56a and side face 56b) of the goal net 56 the ball object 48 collides with (S201). Next, the game apparatus 10 (determination unit 62: reference position setting means) sets a reference point (S202).

  Here, the setting of the reference point will be described by taking as an example a case where the ball object 48 enters the goal object 44 and collides with the goal net 56. 12 to 14 are diagrams for explaining reference points set when the ball object 48 enters the goal object 44 and collides with the goal net 56. First, the game apparatus 10 obtains the intersection I between the reference line 72 and the perpendicular L1 drawn from the current position B of the ball object 48 with respect to the reference plane 72. As shown in FIG. 12, the reference plane 72 is set on the side opposite to the side where the behavior control object 70 is located across the goal net 56. In the example shown in FIG. 12, the YwZw plane on the goal line 43 is set as the reference plane 72. Next, the game device 10 determines whether or not the intersection point I is within the reference point setting target area 72 a of the reference plane 72. Here, the reference point setting target region 72a is a region where a reference point can be set. In the example shown in FIG. 12, an area near the center of the area surrounded by the goal post 52, the cross bar 54, and the goal line 43 is set as the reference point setting target area 72a. As shown in FIG. 13, when the intersection point I is within the reference point setting target area 72a, the game apparatus 10 sets the intersection point I as the reference point S. On the other hand, as shown in FIG. 14, when the intersection point I is not within the reference point setting target area 72 a, the game device 10 sets a point on the reference point setting target area 72 a closest to the intersection point I as the reference point S.

  After the reference point is set, the game apparatus 10 (determination unit 62), for example, as shown in FIG. 15, the ID of the behavior control object 70 that intersects the straight line L2 from the reference point S to the current position B of the ball object 48. Is acquired (S203). In the case of the example shown in FIG. 15, the IDs of the behavior control object 70 closest to the front surface 56 a of the goal net 56 and the second and third behavior control objects 70 closest to the front surface 56 a of the goal net 56. Is acquired. In FIG. 15, the goal object 44 is represented by a dotted line in order to facilitate understanding of the relationship among the reference point S, the current position B of the ball object 48, the straight line L <b> 2, and the behavior control object 70.

Thereafter, the game device 10 (ball object behavior control unit 64a) determines whether or not all the bounce flags associated with the ID acquired in S203 are 0 (S204). When all the bounce flags associated with the ID acquired in S203 are 0, the game apparatus 10 (ball object behavior control unit 64a) shows a reaction force indicating a reaction force applied to the ball object 48 by the goal net 56. A vector is acquired based on the reaction force coefficient associated with the ID acquired in S203 (S205). First, the game apparatus 10 acquires a reaction force vector corresponding to each ID acquired in S203. The reaction force vector corresponding to each ID is obtained by multiplying the reaction force coefficient associated with the ID by the unit force vector in the normal direction of the surface on the front side of the behavior control object 70 related to the ID. Next, the game apparatus 10 acquires a reaction force vector applied to the ball object 48 by synthesizing the reaction force vectors corresponding to the respective IDs acquired in S203. For example, when the IDs acquired in S203 are 1, 2, and 3, the reaction force vector F applied to the ball object 48 is expressed by the following equation (1). In the following formula (1), F ₁ represents a unit force vector in the normal direction of the surface on the front side of the behavior control object 70 with ID 1. Similarly, F ₂ and F ₃ respectively indicate unit force vectors in the normal direction of the surface on the front side of the behavior control object 70 having IDs ₂ and ₃ .

  Next, the game device 10 (ball object behavior control unit 64a) acquires the acceleration vector of the ball object 48 resulting from the reaction force based on the reaction force vector acquired in S205 (S206). For example, the acceleration vector a of the ball object 48 is obtained by the following equation (2). In the following formula (2), m represents the mass of the ball object 48. The mass of the ball object 48 is set in advance and stored in the game data storage unit 60.

  Next, the game device 10 (ball object behavior control unit 64a) updates the current position, the moving speed vector, and the like of the ball object 48 based on the acceleration vector acquired in S206 (S207). For example, first, the game apparatus 10 calculates a new moving speed vector of the ball object 48 by updating the current moving speed vector of the ball object 48 based on the acceleration vector acquired in S206. Next, the game apparatus 10 moves from the current position of the ball object 48 to the movement direction indicated by the calculated movement speed vector of the ball object 48 for a predetermined time (for example, 1/60 seconds) at the movement speed indicated by the movement speed vector. The moved position is calculated as a new current position of the ball object 48.

  On the other hand, when it is determined in S204 that any one of the bounce flags associated with the ID acquired in S203 is 1, the game apparatus 10 (ball object behavior control unit 64a) has the bounce flag set to 1. Assuming that the ball object 48 has been repulsed by the given bounce coefficient by the behavior control object 70, the current position of the ball object 48, the moving speed vector, etc. are updated (S208). For example, if a given bounce coefficient is e, the game apparatus 10 updates the moving speed vector V of the ball object 48 as shown in the following equation (3). The rebound coefficient is a numerical value greater than 0 and smaller than 1.

  After the current position and moving speed vector of the ball object 48 are updated, the game apparatus 10 (goal net behavior control unit 64b) sets the goal in accordance with the current position of the ball object 48 (the position updated by S207 or S208). The net 56 is deformed (S209). Here, regarding the deformation control (behavior control) of the goal net 56, the technology described in Japanese Patent No. 3768971 can be used.

16 and 17 are diagrams for explaining the deformation control of the goal net 56. FIG. In FIG. 16 and FIG. 17 shows a case where the ball object 48 collides against the goal net 56 move in the direction D ₁ shown in these figures. First, the game device 10 determines whether or not the ball object 48 passes through the goal net 56. When the ball object 48 does not pass through the goal net 56, the goal net 56 is not deformed. When the ball object 48 passes through the goal net 56, the game apparatus 10 selects the ball object 48 from the nodes (N ₁ , N ₂ , N ₃ , N ₄ , N ₅ ,...) Of the goal net 56. Select the node closest to. For example, the game device 10, to the plane of the goal net 56 the ball object 48 collides against (e.g. the front surface 56a or the side surface 56b), projects a leading end position _{B 1} of the ball object 48. The game apparatus 10, selects the closest node to the projection position B _2. Next, the game apparatus 10 calculates the distance r from the position of the selected node (N _{3 in the} example shown in FIG. 16) to the tip position B ₁ of the ball object 48. Here, the distance r is a distance corresponding to the projection direction D ₂ (or the opposite direction D ₃ ) of the tip position B ₁ of the ball object 48. The game device 10, the position of the selected node is moved by a distance r in the direction D _3. The game device 10, the position of the nodes around the selected node in the direction D _3, a distance is determined based on the distance r to move. For example the game device 10 moves the position of the nodes adjacent to the selected node in the direction D ₃ distance (r * 3/4). Note that “*” indicates a multiplication operator.

  The process when the ball object 48 collides with the goal net 56 is thus completed. Here, mainly the behavior control of the ball object 48 and the goal net 56 when the ball object 48 enters the goal object 44 and collides with the inside of the goal net 56 has been described. The behavior control of the ball object 48 and the goal net 56 when the vehicle collides outside can be performed in the same manner.

  FIGS. 18 and 19 show examples of arrangement of the behavior control object 70 for controlling the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the outside of the goal net 56. 18 and 19, the goal object 44 and the goal line 43 are indicated by dotted lines in order to make the arrangement state of the behavior control object 70 easier to understand.

  FIG. 18 shows an example of a behavior control object 70 arranged to control the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the outer surface side of the front surface 56 a of the goal net 56. . The behavior control object 70 shown in FIG. 18 is arranged in the space on the inner surface side of the front surface 56 a of the goal net 56. The behavior control object 70 shown in FIG. 18 is arranged so that its front side faces the front surface 56 a of the goal net 56.

  FIG. 19 shows an example of a behavior control object 70 arranged to control the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the outer surface side of the side surface 56 b of the goal net 56. . The behavior control object 70 shown in FIG. 19 is arranged in the space on the inner surface side of the side surface 56 b of the goal net 56. The behavior control object 70 shown in FIG. 19 is arranged so that the front side thereof faces the side surface 56 b of the goal net 56.

  In each of FIGS. 18 and 19, the value of the “bounce flag” field of the behavior control object 70 farthest from the front surface 56a or the side surface 56b of the goal net 56 is set to 1, and other behavior control objects The value of the “Splash flag” field of 70 is set to 0.

  20 and 21 are diagrams for explaining the processing of S202 and S203 of FIG. 11 when the ball object 48 collides with the outside of the front surface 56a and the side surface 56b of the goal net 56. FIG. In FIG. 21, the goal object 44 is represented by a dotted line for easy understanding of the relationship among the reference point S, the current position B of the ball object 48, the straight line L2, the behavior control object 70, and the like.

  When the ball object 48 collides with the outside of the front face 56a and the side face 56b of the goal net 56, in S202 of FIG. 11, in addition to the reference point setting target area 72a shown in FIGS. A reference point setting target area 72b is set. As shown in FIG. 20, the reference point setting target area 72 b is set in a space outside the goal object 44 so as to surround the goal object 44.

  In this case, first, the game device 10 acquires the reference point S shown in FIG. 13 or FIG. 14 as S0. That is, as in the case where the ball object 48 collides with the inside of the front surface 56a and the side surface 56b of the goal net 56, the perpendicular line L1 dropped from the current position B of the ball object 48 to the reference plane 72, the reference plane 72, Is obtained (see FIGS. 13 and 14). If the intersection point I is within the reference point setting target area 72a, the game apparatus 10 acquires the intersection point I as S0. On the other hand, when the intersection point I is not within the reference point setting target area 72a, the game apparatus 10 acquires a point on the reference point setting target area 72a closest to the intersection point I as S0. When the point S0 is acquired, the game apparatus 10 uses the intersection of the straight line L3 extending from the point S0 in the direction of the current position B of the ball object 48 and the reference point setting target area 72b as shown in FIG. Acquired as point S. In S203 of FIG. 11, the ID of the behavior control object 70 that intersects the straight line L2 from the reference point S to the current position B of the ball object 48 is acquired.

  In S203 of FIG. 11, the game apparatus 10 determines that the straight line L2 only when the straight line L2 from the reference point S to the current position B of the ball object 48 intersects the behavior control object 70 and the behavior control object 70 from the front side. Is preferably determined to intersect with the behavior control object 70. In this way, for example, when the ball object 48 enters the goal object 44 and collides with the inside of the front surface 56a of the goal net 56, the ball object 48 is connected to the behavior control object 70 shown in FIGS. Is determined not to touch. Further, for example, when the ball object 48 collides with the outside of the front surface 56a of the goal net 56, it is determined that the ball object 48 is not in contact (collision) with the behavior control object 70 shown in FIG. become.

  According to the game apparatus 10 described above, it is possible to realize a realistic behavior expression of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56 without performing a complicated simulation calculation or the like. become. That is, it is possible to realize a highly realistic behavior expression of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56 while reducing the processing load.

  Further, according to the game apparatus 10, a person who is in charge of the design of the goal object 44 (a person who is familiar with the shape of the goal object 44) matches the shape of the goal object 48 with the behavior control object 70, The behavior control table can be set, and the data can be produced as the data of the goal object 44 together with the shape data of the goal object 44 and the like. That is, according to the game apparatus 10, the person in charge of the design of the goal object 44 is likely to be involved in behavior control of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56.

  By the way, the shape and structure of the goal used in actual soccer are not constant, and there are goals of various shapes and structures. For this reason, also in a soccer game, the reality of a soccer game can be improved by making a plurality of types of goals having different shapes and structures appear. However, if the shape and structure of the goal object 44 are different, the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56 also differs, so that multiple types of goal objects 48 appear in the game. In this case, in the conventional method, the game programmer, for each goal object 48, has a program that matches the shape and structure of the goal object 44 (the ball object 48 and the goal when the ball object 48 collides with the goal net 56. A program for controlling the behavior of the net 56 must be created. For this reason, if a plurality of types of goal objects 48 are to appear in the game, there is a risk that the time and effort of the game programmer will increase. In this regard, according to the game device 10, the behavior control object 70 can be arranged in accordance with the shape and structure of the goal object 48. Therefore, when a plurality of types of goal objects 48 appear in the game, For each goal object 44, the time and labor of creating a program that matches the shape and structure of the goal object 44 is reduced. That is, according to the game device 10, it is possible to cause a plurality of types of goal objects 48 to appear in the game while suppressing an increase in time and effort of the game programmer.

  In the game apparatus 10, a bounce flag is stored in association with each behavior control object 70. Then, the behavior of the ball object 48 is controlled based on the bounce flag associated with each behavior control object 70. If the ball object 48 colliding with the goal net 56 advances too much, an unnatural state will be displayed on the game screen, and the reality will be lost. In this regard, in the game apparatus 10, the bounce flag of the behavior control object 70 farthest from the front surface 56 a or the side surface 56 b of the goal net 56 in each of FIGS. 7, 8, 18 and 19 is set to 1. The When the ball object 48 comes into contact with these behavior control objects 70, it is assumed that the ball object 48 has been rebounded by the given bounce coefficient by the behavior control objects 70. Is controlled. That is, control is performed so that the ball object 48 does not advance any further. As a result, the game apparatus 10 is designed so that the ball object 48 colliding with the goal net 56 does not advance too much.

  In the game apparatus 10, in a process executed every predetermined time (for example, 1/60 seconds), a reference point is calculated each time based on the current position of the ball object 48, and from the reference point to the current position of the ball object 48. It is determined each time whether or not the ball object 48 is in contact with each behavior control object 70 by determining whether or not the straight line intersects with each behavior control object 70. When performing the behavior control of the ball object 48 or the goal net 56 based on the determination result of whether or not the ball object 48 is in contact with the behavior control object 70, for example, it is associated with each behavior control object 70. It is conceivable that flag information indicating whether or not the ball object 48 has been contacted is stored and behavior control of the ball object 48 and the goal net 56 is executed based on the flag information. However, with this method, flag information indicating whether or not the ball object 48 has already been touched must be stored in association with each behavior control object 70, which increases the amount of data. . For example, when a soccer game has a replay function for reproducing replay data recorded for each scene to be replayed, if this method is used, the behavior of the ball object 48 and the goal net 56 is accurately reproduced on the replay screen ( There is a possibility that it will not be replayed. That is, if the first situation reproduced by the replay data is a situation after the ball object 48 has already collided with at least one behavior control object 70, the behavior control object 70 with which the ball object 48 collided before then. Therefore, the behavior of the ball object 48 and the goal net 56 cannot be accurately reproduced on the replay screen. In this regard, according to the game apparatus 10, it is possible to suppress an increase in the amount of data. In addition, according to the game device 10, even in the replay function as described above, the behavior of the ball object 48 and the goal net 56 when the ball object 48 collides with the goal net 56 is accurately reproduced (replayed). Become.

  The present invention is not limited to the embodiment described above.

  For example, in the behavior control table, instead of the “reaction force coefficient” field, a “repulsion coefficient” field for storing a restitution coefficient (acceleration vector information) and a “coefficient of friction” (acceleration vector information) are stored. And a “coefficient of friction” field. In this way, the behavior of the ball object 48 when the ball object 48 collides with the goal net 56 is divided into the repulsive force component and the frictional force component of the force applied to the ball object 48 by the goal net 56 separately. You may make it control in consideration.

  Further, for example, in the behavior control table, in addition to the “reaction force coefficient” field, a “reaction force vector” field for storing vector information (acceleration vector information) indicating the acting direction of the reaction force may be provided. Good. In this way, a force other than the normal direction of the front surface of the behavior control object 70 may be applied to the ball object 48.

  Further, for example, in the behavior control table, instead of the “reaction coefficient” field, information (acceleration vector information) indicating the acceleration vector of the ball object 48 due to the force with which the goal net 56 pushes back the ball object 48 is stored. An “acceleration vector” field may be provided.

  Further, for example, in the behavior control table, a “bounce coefficient” field for storing a bounce coefficient (bounce control information) may be provided in place of the “bounce flag” field or together with the “bounce flag” field. . In this way, the bounce coefficient may be changed for each behavior control object 70.

  In addition, for example, the present invention is not limited to the case where the state in which the ball object 48 collides with the goal net 56 is expressed. For example, the present invention can also be used to represent a situation in which a ball (flaming cylinder) or the like (moving body) collides with a large flag (object to be collided) swung at a spectator seat in a soccer stadium. At this time, the manner in which the shape of the flag changes as the spectator shakes the flag is represented by animation, for example. In such a case, the position and shape of the behavior control object 70 and the reaction force coefficient (acceleration vector information) associated with the behavior control object 70 are linked to the animation information indicating the change in the shape of the flag due to the waving motion of the spectator. May be changed. As described above, the position and shape of the behavior control object 70 and the reaction force coefficient (acceleration vector information) associated with the behavior control object 70 according to the shape change of the collided object caused by an event other than the collision of the moving object. ) May be changed. In this way, even when the shape of the collided object is changed due to an event other than the collision of the moving object, it is possible to suitably express how the moving object collides with the collided object. When the position and shape of the behavior control object 70 change, it is necessary to change the positions and shapes of the reference point setting target areas 72a and 72b according to the changes. For this reason, for example, data is stored that associates each frame of the animation representing the shape change of the collided object with information for specifying the positions and shapes of the reference point setting target areas 72a and 72b. This data is, for example, data in a table format in which each frame of an animation representing a change in shape of a collided object is associated with information for specifying the coordinates of each vertex of the reference point setting target areas 72a and 72b. It is. Further, for example, the above data is based on the position of each frame of the animation representing the shape change of the collided object (for example, a numerical value indicating the number of frames from the top) of each vertex of the reference point setting target areas 72a and 72b. Data in an arithmetic expression format for calculating coordinates may be used. Based on the data as described above, the positions and shapes of the reference point setting target areas 72a and 72b change according to the shape change of the collided object caused by an event other than the collision of the moving object.

  Also, for example, the present invention can be applied to a game device that executes a game other than a soccer game. For example, by applying the present invention to a game device that executes a volleyball game, it is also possible to suitably express how the ball collides with the net. The present invention can also be applied to image processing devices other than game devices. The present invention can be used to express a situation in which a mobile object collides with a collided object that is deformed by the collision of the mobile object. Examples of the collision object include a sheet-like object such as a net or cloth, a sponge-like object, and the like.

  Further, for example, in the above description, the program is supplied from the DVD-ROM 25 as an information storage medium to the consumer game machine 11, but the program may be distributed to a home or the like via a communication network. FIG. 22 is a diagram showing an overall configuration of a program distribution system using a communication network. A program distribution method according to the present invention will be described with reference to FIG. As shown in FIG. 22, the program distribution system 100 includes a database 102 (information storage medium), a server 104, a communication network 106, a personal computer 108, a consumer game machine 110, and a PDA (personal digital assistant) 112. Among these, the database 102 and the server 104 constitute a program distribution device 114. The communication network 106 includes, for example, the Internet and a cable television network. In this system, a program similar to the storage content of the DVD-ROM 25 is stored in the database 102. Then, when a consumer makes a program distribution request using the personal computer 108, the home game machine 110, the PDA 112, or the like, the request is transmitted to the server 104 via the communication network 106. Then, the server 104 reads the program from the game database 102 in response to the program distribution request, and transmits it to the program distribution request source such as the personal computer 108, the home game machine 110, the PDA 112, and the like. Here, the program is distributed in response to the program distribution request, but may be transmitted unilaterally from the server 104. Further, it is not always necessary to distribute all the programs at once (collective distribution), and a necessary part may be distributed (divided distribution) each time. If the program is distributed via the communication network 106 in this way, the consumer can easily obtain the program.

It is a figure which shows the hardware constitutions of the game device which concerns on this Embodiment. It is a figure which shows an example of virtual three-dimensional space. It is a perspective view which shows an example of a goal object. It is a figure which shows a part of goal net. It is a functional block diagram of the game device concerning this embodiment. It is a perspective view which shows an example of the object for behavior control. It is a figure which shows the example of arrangement | positioning of the object for behavior control. It is a figure which shows the example of arrangement | positioning of the object for behavior control. It is a figure which shows an example of a behavior control table. It is a flowchart which shows the process performed with a game device. It is a flowchart which shows the process performed with a game device. It is a figure for demonstrating the setting of a reference point. It is a figure for demonstrating the setting of a reference point. It is a figure for demonstrating the setting of a reference point. It is a figure for demonstrating the contact determination with a ball object and the object for behavior control. It is a figure for demonstrating the deformation | transformation control of a goal net. It is a figure for demonstrating the deformation | transformation control of a goal net. It is a figure which shows the example of arrangement | positioning of the object for behavior control. It is a figure which shows the example of arrangement | positioning of the object for behavior control. It is a figure for demonstrating the setting of a reference point. It is a figure for demonstrating the setting of a reference point, and the contact determination of a ball object and a behavior control object. It is a figure which shows the whole structure of the program delivery system which concerns on other embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Game device, 11,110 Home-use game machine, 12 bus | bath, 14 Microprocessor, 16 Image processing part, 18 Monitor, 20 Sound processing part, 22 Speaker, 24 DVD-ROM reproduction | regeneration part, 25 DVD-ROM, 26 Main memory , 28 Memory card, 30 Input / output processing unit, 32 Controller, 40 Virtual three-dimensional space, 42 Field object, 43 Goal line, 44 Goal object, 46 Player object, 48 Ball object, 50 Virtual camera, 52 Goal post, 54 Cross Bar, 56 Goal net, 56a Front, 56b Side, 60 Game data storage unit, 60a Behavior control information storage unit, 62 Judgment unit, 64 Object behavior control unit, 64a Ball object behavior control unit, 64b Goal net behavior Control unit, 70 behavior control object, 72 reference plane, 72a, 72b reference point setting target area, 100 program distribution system, 102 database, 104 server, 106 communication network, 108 personal computer, 112 personal digital assistant (PDA), 114 program Distribution device.

Claims (4)

An image that displays a moving object and an object to be deformed when the moving object collides in a virtual three-dimensional space, and displays an image representing a state in which the moving object collides with the collided object In the processing device,
A force applied to the mobile object by the collided object in association with each of a plurality of behavior control objects arranged in a space behind the surface of the collided object that is collided by the mobile object Acceleration vector information storage means for storing acceleration vector information for specifying an acceleration vector of the moving object by
Determining means for determining whether or not the moving object and the plurality of behavior control objects are in contact;
When it is determined that the moving object has contacted at least one of the plurality of behavior control objects, an acceleration vector specified by the acceleration vector information associated with the at least one behavior control object Based on the moving object behavior control means for controlling the behavior of the moving object,
Including
The behavior control object is a plate-like object with a distinction between front and back,
The behavior control object is arranged so that the front side faces the back of the surface of the collided object that is collided by the moving object,
The determination means determines whether or not the moving object has contacted the behavior control object from the front side of the behavior control object,
When it is determined that the moving object touches the behavior controlling object from the front side of the behavior controlling object, the moving object behavior controlling means uses the acceleration vector information associated with the behavior controlling object. Controlling the behavior of the moving object based on the specified acceleration vector;
An image processing apparatus. The image processing apparatus according to claim 1.
Bounce control information storage means for storing bounce control information indicating whether or not the mobile object is bounced by the behavior control object in association with each of the plurality of behavior control objects;
The moving object behavior control means, when it is determined that the moving object has come into contact with the behavior control object from the front side of the behavior control object, bounce control information associated with the behavior control object Indicates that the moving object is rebounded by the behavior controlling object, the moving object is assumed to have been rebounded by the behavior controlling object with a given rebound coefficient. Including means for controlling the behavior of
An image processing apparatus. An image that displays a moving object and an object to be deformed when the moving object collides in a virtual three-dimensional space, and displays an image representing a state in which the moving object collides with the collided object In a control method of a processing device,
A force applied to the mobile object by the collided object in association with each of a plurality of behavior control objects arranged in a space behind the surface of the collided object that is collided by the mobile object Reading stored contents of acceleration vector information storage means for storing acceleration vector information for specifying an acceleration vector of the moving object according to
A determination step of determining whether or not the mobile object and the plurality of behavior control objects are in contact;
When it is determined that the moving object has contacted at least one of the plurality of behavior control objects, an acceleration vector specified by the acceleration vector information associated with the at least one behavior control object Based on the moving object behavior control step for controlling the behavior of the moving object,
Including
The behavior control object is a plate-like object with a distinction between front and back,
The behavior control object is arranged so that the front side faces the back of the surface of the collided object that is collided by the moving object,
The determination step determines whether or not the moving object has contacted the behavior control object from the front side of the behavior control object;
When it is determined that the moving object touches the behavior controlling object from the front side of the behavior controlling object, the moving object behavior controlling step uses acceleration vector information associated with the behavior controlling object. Controlling the behavior of the moving object based on the specified acceleration vector;
And a control method for the image processing apparatus. An image that displays a moving object and an object to be deformed when the moving object collides in a virtual three-dimensional space, and displays an image representing a state in which the moving object collides with the collided object A program for causing a computer to function as a processing device,
A force applied to the mobile object by the collided object in association with each of a plurality of behavior control objects arranged in a space behind the surface of the collided object that is collided by the mobile object Acceleration vector information storage means for storing acceleration vector information for specifying an acceleration vector of the moving object by
Determination means for determining whether or not the moving object and the plurality of behavior control objects are in contact; and
When it is determined that the moving object has contacted at least one of the plurality of behavior control objects, an acceleration vector specified by the acceleration vector information associated with the at least one behavior control object Based on the moving object behavior control means for controlling the behavior of the moving object,
Function the computer as
The behavior control object is a plate-like object with a distinction between front and back,
The behavior control object is arranged so that the front side faces the back of the surface of the collided object that is collided by the moving object,
The determination means determines whether or not the moving object has contacted the behavior control object from the front side of the behavior control object,
When it is determined that the moving object touches the behavior controlling object from the front side of the behavior controlling object, the moving object behavior controlling means uses the acceleration vector information associated with the behavior controlling object. Controlling the behavior of the moving object based on the specified acceleration vector;
A program characterized by that.

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