JP2018088102A - Program, computer device and determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program capable of performing a collision determination between objects with a low processing load even in a state where it is generally difficult to perform the collision determination.SOLUTION: A program causes a computer device to function as location information acquisition means for acquiring location information on location of a virtual skeleton of an object and collision determination means for determining that the object has collided with another object when the acquired location information on location of the virtual skeleton of the object satisfies prescribed conditions.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a program, a computer apparatus, and a determination method for determining a collision between objects with a low processing load.

  In a video game, as a method of easily creating an animation, there is a method of motion capture in which an actual motion of a human or the like is measured and captured in a computer device, and an object is animated in a virtual space.

  In addition, there is a technique for correcting the motion of a character by computer control in order to depict an animation realistically (for example, Patent Document 1). Examples of techniques for correcting motion include inverse kinematics and procedural animation. These methods realize natural animation by generating motion automatically or semi-automatically by computer control.

  Furthermore, in animation production, there is a technique related to collision determination that determines whether objects collide with each other based on object motion information. When the object collides, an effect such as a change related to the movement of the object occurs.

JP 2001-351124 A

  In order to perform a collision determination using a motion produced by motion capture, it is necessary for the developer to set a range called a hit determination in the collision determination and perform the determination. If the motion is changed, the developer needs to be set again, and the work cost is enormous. Also, the collision determination process uses a physical collision determination method such as ray casting. However, the physical collision determination has a high processing load and requires a computer device having high performance. Furthermore, for example, when creating motion of an object using motion capture in a cut scene, if the origin of motion is the reference coordinate of the object, there is a situation where collision (contact) with the ground in the virtual space cannot be determined. It was.

  While the computer-controlled automatic motion generation technology provides natural animation, it is difficult for developers to grasp the timing of object collision, and it is difficult to naturally express visual effects and sound generated by collision. It was. In addition, in the generated animation, if a foot of a character or the like that should have stood up unexpectedly moves away from the coordinates of the ground, the grounding determination that is a collision determination with the ground cannot be performed, and the footsteps There was an unnatural situation such as not being emitted.

  An object of at least one embodiment of the present invention is to provide a program, a computer device, and a computer program that can perform collision determination even in a situation where the processing load is low and it is generally difficult to perform collision determination between objects. An object is to provide a determination method.

  According to a non-limiting viewpoint, the computer device can acquire position information related to the position of the virtual skeleton of the object, and the object can collide with another object when the acquired position information satisfies a predetermined condition. This is a program that functions as a collision determination unit that determines that a failure has occurred.

  According to a non-limiting viewpoint, position information acquisition means for acquiring position information related to the position of the virtual skeleton possessed by the object, and when the acquired position information satisfies a predetermined condition, it is determined that the object has collided with another object. And a collision determination means.

  According to a non-limiting viewpoint, the determination method is executed in a computer device, and includes a step of acquiring position information related to a position of a virtual skeleton possessed by an object, and an object when the acquired position information satisfies a predetermined condition. Determining that has collided with another object.

  Each embodiment of the present invention solves one or more deficiencies.

It is a block diagram which shows the structure of the computer apparatus corresponding to at least 1 of embodiment of this invention. It is a flowchart of the program execution process corresponding to at least 1 of embodiment of this invention. It is a block diagram which shows the structure of the computer apparatus corresponding to at least 1 of embodiment of this invention. It is a flowchart of the program execution process corresponding to at least 1 of embodiment of this invention. It is a block diagram which shows the structure of the computer apparatus corresponding to at least 1 of embodiment of this invention. It is a flowchart of the program execution process corresponding to at least 1 of embodiment of this invention. It is a figure showing the collision condition master table for determining whether the object collided corresponding to at least 1 of embodiment of this invention. It is a figure explaining the ground-contact determination method in the walking motion of the object corresponding to at least 1 of embodiment of this invention. It is a figure explaining the sounding timing of the object which operate | moves by simulation corresponding to at least 1 of embodiment of this invention. It is a figure showing the pronunciation master table for determining the sound to sound corresponding to at least 1 of embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. Hereinafter, the description regarding the effect is one aspect of the effect of the embodiment of the present invention, and is not limited to what is described here. In addition, the order of the processes constituting the flowchart described below is out of order as long as no contradiction or inconsistency occurs in the process contents.

[First embodiment]
A first embodiment of the present invention will be described. FIG. 1 is a block diagram showing a configuration of a computer apparatus corresponding to at least one of the embodiments of the present invention. The computer apparatus 1 includes at least a position information acquisition unit 101 and a collision determination unit 102.

  The position information acquisition unit 101 has a function of acquiring position information regarding the position of the virtual skeleton of the object. The collision determination unit 102 has a function of determining that an object has collided with another object when the acquired position information satisfies a predetermined condition.

  The program execution process in the first embodiment of the present invention will be described. FIG. 2 is a flowchart of a program execution process corresponding to at least one of the embodiments of the present invention.

  The computer apparatus 1 acquires position information regarding the position of the virtual skeleton that the object has (step S1). If the position information acquired in step S1 satisfies a predetermined condition, it is determined that the object has collided with another object (step S2), and the process ends.

  As one aspect of the first embodiment, by performing collision determination based on the position information of the virtual skeleton possessed by the object, the processing load is low and it is generally difficult to perform collision determination with the ground It is also possible to make a collision determination at.

  In the first embodiment, the “computer device” refers to, for example, a desktop or notebook personal computer, a tablet computer, or a PDA, and may be a portable terminal that includes a touch panel sensor on a display screen. .

  “Object” refers to a tangible object in a virtual space, for example. The “virtual skeleton” is, for example, an object skeleton that is used when defining the motion and posture of an object. “Position information” is information on a position that can be determined based on the coordinates of a coordinate system forming a three-dimensional virtual space, for example.

[Second Embodiment]
Next, the outline of the second embodiment of the present invention will be described. FIG. 3 is a block diagram showing a configuration of a computer apparatus corresponding to at least one of the embodiments of the present invention. The computer apparatus 1 includes at least a position information acquisition unit 111, a collision determination unit 112, and a sound generation unit 113.

  The position information acquisition unit 111 has a function of acquiring position information regarding the position of the virtual skeleton of the object. The collision determination unit 112 has a function of determining that an object has collided with another object when the acquired position information satisfies a predetermined condition. The sound generation unit 113 has a function of executing sound generation processing at the timing when the collision determination unit determines that the object has collided with another object.

  The program execution process in the second embodiment of the present invention will be described. FIG. 4 is a flowchart of the program execution process corresponding to at least one of the embodiments of the present invention.

  The computer apparatus 1 acquires position information related to the position of the virtual skeleton that the object has (step S11). Next, when the position information acquired in step S11 satisfies a predetermined condition, it is determined that the object has collided with another object (step S12). At a timing when it is determined that the object collides with another object (YES in step S12), a sound generation process is executed (step S13), and the process ends.

  As one aspect of the second embodiment, by sounding at a timing when it is determined that an object has collided, it is possible to generate sound at a timing that does not cause a sense of incongruity even in a situation where it is difficult to perform a collision determination.

  In the second embodiment, “computer device”, “object”, “virtual skeleton”, and “position information” are the same as those described in the first embodiment.

  In the second embodiment, “sound generation processing” refers to, for example, processing for generating sound.

[Third embodiment]
Next, the outline of the third embodiment of the present invention will be described. The computer apparatus of the third embodiment can employ the same configuration as that shown in the block diagram of FIG. Further, the flow of the program execution process of the third embodiment can adopt the same configuration as that shown in the flowchart of FIG.

  In the third embodiment, the collision determination unit 102 determines the position, moving speed, and / or acceleration of the virtual skeleton and / or the angle and / or angular velocity of the virtual joint formed from the virtual skeleton and the virtual skeleton. When the predetermined condition is satisfied, it is determined that the object has collided with another object.

  As one aspect of the third embodiment, the collision of the object is determined using any one of the position of the virtual skeleton, the moving speed, the acceleration, the angle of the virtual joint formed from the virtual skeleton and the virtual skeleton, and the angular velocity. Thus, the collision timing according to various states of the object can be set flexibly.

  In the third embodiment, “computer device”, “object”, “virtual skeleton”, and “position information” are the same as those described in the first embodiment. The “sound generation process” is the same as that described in the second embodiment.

  In the third embodiment, “movement speed” refers to, for example, the speed at which an object moves, and represents the direction in which the object moves depending on whether the speed is positive or negative. “Acceleration” refers to, for example, the degree of change in the moving speed of an object. The “virtual joint” refers to, for example, a portion that connects skeletons forming an object and has a role of transmitting movement between the skeletons. “Angular velocity” refers to the speed at which a virtual skeleton forming an object rotates, for example.

[Fourth embodiment]
An outline of the fourth embodiment of the present invention will be described. FIG. 5 is a block diagram showing a configuration of a computer apparatus corresponding to at least one of the embodiments of the present invention.

  The computer apparatus 1 includes a control unit 11, a RAM (Random Access Memory) 12, a storage unit 13, a sound processing unit 14, a graphics processing unit 15, a DVD / CD-ROM drive 16, a communication interface 17, and an interface unit 18. Are connected by an internal bus.

  The control unit 11 includes a CPU (Central Processing Unit) and a ROM (Read Only Memory). The control unit 11 executes a program stored in the storage unit 13 or the recording medium 24 to control the computer device 1. Moreover, the control part 11 is provided with the internal timer which time-measures.

  The RAM 12 is a work area for the control unit 11. The storage unit 13 is a storage area for storing programs and data.

  The DVD / CD-ROM drive 16 can be loaded with a recording medium 24 in which a program such as a DVD-ROM or a CD-ROM is stored. The recording medium 24 stores a program and data for executing a game and reproducing content. The DVD / CD-ROM drive 16 reads programs and data necessary for the progress of the content from the recording medium 24 and loads them into the RAM 12.

  The control unit 11 reads a program and data necessary for the progress of content from the RAM 12 and performs processing. The control unit 11 processes the program and data loaded in the RAM 12 to output a sound output instruction to the sound processing unit 14 and output a drawing command to the graphics processing unit 15.

  The sound processing unit 14 is connected to a sound output device 21 that is a speaker. When the control unit 11 outputs a sound output instruction to the sound processing unit 14, the sound processing unit 14 outputs a sound signal to the sound output device 21.

  The graphics processing unit 15 is connected to the display device 22. The display device 22 has a display screen 23. When the control unit 11 outputs a drawing command to the graphics processing unit 15, the graphics processing unit 15 develops an image in a frame memory (frame buffer) 19 and outputs a video signal for displaying the image on the display screen 23. Output. The graphics processing unit 15 performs drawing of one image for each frame. One frame time of an image is, for example, 1/30 second.

  For example, an input unit 20 such as a controller or a keyboard is connected to the interface unit 18. Information input to the input unit 20 by the user is stored in the RAM 12, and the control unit 11 executes various arithmetic processes based on the input information. Further, an external storage medium such as a memory card can be connected to the interface unit 18. In accordance with an instruction from the control unit 11, the interface unit 18 stores data related to the progress of content stored in the RAM 12 in the external storage medium, reads out data stored in the external storage medium, and stores the data in the RAM 12. Perform the transfer process.

  The communication interface 17 is connected to the communication network 2 wirelessly or by wire, and transmits / receives operation instruction information and information regarding the progress of the content to / from an external computer device as necessary.

  As an example of the fourth embodiment, a role playing game (RPG) program in which a character operated by a user can freely move around in a three-dimensional virtual space is given. The game may be composed of a scene in which a character is operated by a user operation and a scene in which a moving image recorded in advance in the storage unit 13 is reproduced.

  Subsequently, a program execution process in the fourth embodiment of the present invention will be described. FIG. 6 is a flowchart of the program execution process corresponding to at least one of the embodiments of the present invention.

  When the program execution process is started, a collision condition that is a condition for determining whether or not there is a collision recorded in the storage unit 13 is acquired (step S21). The collision condition will be described later.

  Next, the frame displayed on the display screen 23 is calculated (step S22). The frame calculated in step S22 is generated and displayed on the display screen 23 (step S23).

  Next, the virtual skeleton information of the object is acquired from the frame generated in step S23 (step S24). The virtual skeleton information of an object includes information on a character that exists in the virtual space, accessories worn by the character, accessories such as accessories, and other objects formed by the virtual skeleton. Furthermore, the position coordinates set in the virtual skeleton and the virtual joint, the amount of change in the position coordinates between the previous frame and the current frame, the moving speed, the acceleration representing the amount of change in the speed between the previous frame and the current frame, the angle of the virtual joint, Or it is the concept in which the information regarding angular velocity is included. Here, the moving speed may be set for each axis of the coordinate system forming the virtual space, or may be vector information that can know the moving direction.

  Subsequently, it is determined whether the acquired virtual skeleton information satisfies a collision condition (step S25). FIG. 7 is a diagram showing a collision condition master table for determining whether or not an object has collided, corresponding to at least one of the embodiments of the present invention.

  The collision condition master table 30 stores a check target 32 and condition contents 33 in association with the condition NO31. The check target 32 is information related to a target for determining a collision condition. The condition contents 33 are conditions for determining that a collision has occurred when the check target 32 satisfies the conditions described in the condition contents. A plurality of condition contents 33 associated with the same condition NO31 are determined by logical product (AND). That is, when a plurality of condition contents 33 exist in one condition NO31, it is determined that the collision has occurred only when all the condition contents 33 are satisfied.

  The condition contents 33 will be specifically described. For example, when the condition NO31 is “0001”, the movement speed of the virtual skeleton or virtual joint (hereinafter referred to as a virtual skeleton) of the object is compared with the movement speed of the same virtual skeleton in the previous frame. When the sign of speed is reversed, it is determined that a collision has occurred. Here, even if the object does not actually collide with another object, the effect may be generated as a collision.

  Next, a case where the grounding determination is performed in the case where the condition NO31 is “0002” and it is determined whether or not the object has touched the ground will be described. FIG. 8 is a diagram for explaining a ground contact determination method during a walking motion of an object, corresponding to at least one of the embodiments of the present invention.

  The ground contact determination is performed to determine whether or not the humanoid object is grounded based on information on the virtual skeleton of the foot and the leg when the humanoid object walks with both feet. The leg drawn with a solid line is the right leg, and the leg drawn with a broken line is the left leg.

  FIG. 8A shows a frame at the moment when the right foot is in contact with the ground 45. Virtual joints 40a, 40b, and 40c are set on the foot and the leg, respectively. An angle 42 is defined as an angle formed by the virtual skeleton 41a between the virtual joints 40a and 40b and the virtual skeleton 41b between the virtual joints 40b and 40c. Since the right leg is moving, the virtual skeleton 41a of the right foot is moving at a predetermined moving speed.

  FIG. 8B is a diagram illustrating a frame after a predetermined time has elapsed from the state of FIG. When the left leg is advanced forward, the right foot is in contact with the ground 45. At this time, the moving speed of the virtual skeleton 41a of the right foot is 0, that is, it is stationary. The angle 42 maintains an angle within a predetermined range.

  FIG. 8C is a diagram illustrating a frame after a predetermined time has elapsed from the state of FIG. Even when the left leg is advanced forward of the right leg, the right leg remains in contact with the ground 45, and the angle 42 remains within the predetermined range shown in FIG. 8B. It is.

  FIG. 8D shows a frame after a predetermined time has elapsed from the state of FIG. When the left foot touches down, the ground state of the right foot is released, and the moving speed of the virtual skeleton 41a of the right foot becomes greater than zero. Further, the angle 42 is an angle outside the predetermined range shown in FIGS. 8B and 8C.

  That is, it can be determined that the foot is in contact with the ground when the moving speed of the virtual skeleton 41a of the foot portion is not more than a predetermined speed for a plurality of frames. Furthermore, a condition for determining whether or not the angle 42 in the virtual joint 40b is in an angle within a predetermined range may be added to the condition for determining that the ground has been reached. Note that the moving speed of the object may be determined by limiting to only the moving speed in the horizontal direction, for example.

  Similarly, contact determination between an object and a wall object can be performed using information such as a virtual skeleton of the hand part and the arm part. This is a case where the condition NO31 satisfies the condition content 33 of “0003” in FIG. Although not shown, when the moving speed of the virtual skeleton of the hand satisfies a predetermined condition, it can be determined that the hand is in contact with the wall object. Further, other conditions may be added in order to distinguish the movement of the object more finely. The other conditions include, for example, that an angle formed by the virtual skeleton that forms the hand portion and the virtual skeleton that forms the arm portion is within a predetermined range.

  Next, a case where the condition NO31 is “0004” and the timing for sound generation of an object (for example, a bag) worn by the character will be described. FIG. 9 is a diagram illustrating the sound generation timing of an object that operates by simulation, corresponding to at least one of the embodiments of the invention. The object 51 is formed by virtual joints 52a, 52b, and 52c, a virtual skeleton 53a that exists between the virtual joints 52a and 52b, and a virtual skeleton 53b that exists between the virtual joints 52b and 52c. It works by simulation.

  FIG. 9A is a diagram illustrating a state where a character wearing an object is stationary. Since the character wears the object 51, the virtual skeleton 53b that forms the object 51 is positioned so that the character receives a force in the direction of the arrow and is close to the character's body.

  Here, a case will be described in which the object is separated from the character's body due to the movement of the character or the like. FIG. 9B is a diagram illustrating a state in which the object is separated from the character body. Since the object 51 is moving in a direction away from the character's body, the virtual skeleton 53b receives a force in the direction of the arrow, which is a direction away from the character's body. That is, the movement speed of the virtual skeleton 53b is different from the movement speed in FIG.

  In this case, it can be considered that the condition 33 “when the sign of the speed is reversed” in FIG. 7 is satisfied and a collision between the character and the object has occurred. In order to more accurately determine the collision, other conditions may be added. Other conditions include, for example, a condition regarding the relative positional relationship between a specific virtual skeleton forming a character and a specific virtual skeleton constituting an object, a condition regarding a moving direction, a condition regarding an angle of a virtual joint, etc. Is mentioned.

  Next, a description will be given of a scene in which the timing of sound generation is determined when the condition NO31 is “0006” and the character falls due to a motion automatically generated by computer control. Although not shown, for example, the angle formed by the virtual skeleton of the character's spine with respect to the horizontal direction is within a predetermined angle range (0 ° or more and 20 ° or less) over a plurality of frames, and the spine is virtual. When the sign of the moving speed of the skeleton is reversed, it can be determined that the character has fallen and can be pronounced.

  In this way, it is possible to determine the collision determination and the state of the object from the information regarding the virtual skeleton of the object without performing the physical collision determination.

  Returning to FIG. 6, the sound generation process after collision determination will be described. If the collision condition is satisfied in step S25 (YES in step S25), environmental information used for sound generation is acquired (step S26). The environment information is, for example, information including information on a collided object (collision source object) and another object collided (collision destination object) and information on a virtual space in which the object exists. The environment information can be acquired from information included in the frame displayed on the display screen 23 or information used when generating the frame.

  Sound generation processing is performed using the environmental information acquired in step S26 (step S27). FIG. 10 is a diagram showing a pronunciation master table for determining a sound to be generated, corresponding to at least one of the embodiments of the present invention. In the pronunciation master table 60, a sound 65 is stored in association with the condition NO61, the collision source 62, the collision destination 63, and the existence space 64.

  The condition NO61 corresponds to the condition NO31 included in the collision condition master table 30. The collision source 62 is information regarding the collided object. The collision destination 63 is information regarding the collided object. The existence space 64 is information regarding the virtual space in which the object exists. The collision source 62, the collision destination 63, and the existence space 64 correspond to information included in the environment information acquired in step S26.

  The sound 65 is information related to a sound that is emitted when it is determined that a collision has occurred. The sound 65 may be a data file related to the sound source itself, or may be information related to the storage location when the sound source data file is stored in the storage unit 13 or the like.

  The determination of the sound 65 to be pronounced will be described. In step S25, when it is determined that the collision has occurred because the condition NO31 satisfies “0001”, the condition NO61 is “0001”, which will be described later, but the collision source 62, the collision destination 63, and the existence space will be described later. The sound 65 can be determined by specifying 64 from the environment information acquired in step S26.

  For example, in a scene in which a humanoid object wearing leather shoes walks on a sandy ground, the collision source 62 is “leather shoes”, the collision destination 63 is “sand”, and the existence space 64 is “normal” according to the environmental information acquired in step S26. ". Then, the sound 65 “sound on the sand” is determined.

  The existence space 64 includes information representing the surrounding environment in which the object exists, such as “normal”, “underwater”, “cave”, “mountain range”, and the like. For example, it expresses that when the user is in the water rather than in the normal atmosphere, the speed at which the sound is transmitted is high and the way the sound is heard changes.

  Returning to FIG. 6, after sounding in step S27, or if it is determined in step S25 that the collision condition is not satisfied (NO in step S25), a process of updating the current frame next is performed (step S25). S28). The processing from step S22 to step S28 is repeatedly executed while the object is executing a motion. When the motion ends, the program execution process of the present embodiment ends.

  In the fourth embodiment, RPG has been described. However, the present invention is not limited to this. That is, any game that uses the motion of an object is applicable, and may be an action game, a puzzle game, a simulation game, or the like.

  In the fourth embodiment, the method using the pronunciation master table is described for the pronunciation process, but the present invention is not limited to this. The master table may not be used and may be designed to emit a specific sound under specific conditions.

  As one aspect of the fourth embodiment, it is possible to detect the motion of the object by performing collision determination based on information such as the virtual skeleton of the object, and when the motion of the object is changed. However, no developer setting is required, and the work cost can be reduced. In addition, the processing load can be kept lower than when the physical collision determination is performed every frame. Furthermore, footsteps are generated when ground contact is not accurately detected on ground that is undulating up and down due to staircases or natural terrain, etc. Even in an unnatural situation where there is no such thing, it is possible to make a grounding determination, and sound generation processing can be performed without a sense of discomfort. In addition, even when the character is in a special movement situation such as climbing a ladder, it is possible to automatically detect the grounding of the foot (timing when the ladder is stepped on).

  As one aspect of the fourth embodiment, it is possible to emit a sound without a sense of incongruity according to the material of another object at the collision destination. In addition, by generating different sounds according to the collision source object, it is possible to generate a sound with no sense of incongruity according to the material of the collision source object. Furthermore, as one aspect of the fourth embodiment, by generating different sounds according to the other objects of the collision destination, generating a sound without a sense of incongruity according to the material of the other objects of the collision destination Can do.

  As one aspect of the fourth embodiment, by generating different sounds according to the collision source object and the other objects of the collision destination, it is possible to generate a sound according to the colliding object, which is more realistic. Sound can be provided.

  As one aspect of the fourth embodiment, the position, moving speed, and / or acceleration of the virtual skeleton and / or the angle and / or angular velocity of the virtual joint formed from the virtual skeleton and the virtual skeleton are predetermined conditions. By determining that a collision occurs when the condition is satisfied, it is possible to automatically detect the collision timing with respect to a motion whose collision timing is not fixed, such as a motion of an object operating by simulation.

  As one aspect of the fourth embodiment, by determining that the virtual skeleton or the like has collided when the predetermined condition is satisfied, for the motion whose collision timing is not fixed, such as the motion of the object operated by the simulation, The collision timing can be automatically detected.

  In the fourth embodiment, “computer device”, “object”, “virtual skeleton”, and “position information” are the same as those described in the first embodiment. The “sound generation process” is the same as that described in the second embodiment.

  In the fourth embodiment, “movement speed”, “acceleration”, “virtual joint”, and “angular velocity” are the same as those described in the third embodiment.

[Appendix]
The above description of the embodiments described the following invention so that a person having ordinary knowledge in the field to which the invention belongs can carry out the invention.

[1] A computer device
Position information acquisition means for acquiring position information regarding the position of the virtual skeleton possessed by the object;
A collision determination means for determining that the object has collided with another object when the acquired position information satisfies a predetermined condition;
Program to function as.

[2] A computer device
The program according to [1], wherein the program is caused to function as sound generation means for executing sound generation processing at a timing when the object is determined to have collided with another object by the collision determination means.

[3] When the collision determination means satisfies the predetermined condition for the position, moving speed, and / or acceleration of the virtual skeleton and / or the angle and / or angular velocity of the virtual joint formed from the virtual skeleton and the virtual skeleton. The program according to [1] or [2], which determines that the object has collided with another object.

[4] The program according to [2] or [3], wherein the sound generation unit generates different sounds depending on the object determined to have collided.

[5] The program according to any one of [2] to [4], wherein the sound generation unit generates different sounds depending on other objects determined to have collided.

[6] The object is a character's foot,
The collision determination unit calculates the moving speed of the virtual skeleton of the foot and the virtual joint formed by the virtual skeleton of the foot and the virtual skeleton of the leg calculated based on the positional information acquired by the positional information acquiring unit. The program according to any one of [1] to [5], which determines that an object has collided with another object when the angle satisfies a predetermined condition.

[7] The object is the character's hand,
The collision determination means is calculated based on the position information acquired by the position information acquisition means, the moving speed of the virtual skeleton of the hand, and the virtual joint formed by the virtual skeleton of the hand and the virtual skeleton of the arm. The program according to any one of [1] to [6], which determines that an object has collided with another object when the angle satisfies a predetermined condition.

[8] Position information acquisition means for acquiring position information related to the position of the virtual skeleton possessed by the object;
A computer apparatus comprising: a collision determination unit that determines that an object has collided with another object when the acquired position information satisfies a predetermined condition.

[9] A determination method executed in a computer device,
Obtaining position information regarding the position of the virtual skeleton possessed by the object;
And a step of determining that the object has collided with another object when the acquired position information satisfies a predetermined condition.

DESCRIPTION OF SYMBOLS 1 Computer apparatus 11 Control part 12 RAM
DESCRIPTION OF SYMBOLS 13 Storage part 14 Sound processing part 15 Graphics processing part 16 CD-ROM drive 17 Communication interface 18 Interface part 2 Communication network 20 Input part 21 Sound output device 22 Display apparatus 23 Display screen 24 Recording medium 30 Collision condition master table 60 Pronunciation master table

Claims (8)

Computer equipment,
Position information acquisition means for acquiring position information regarding the position of the virtual skeleton possessed by the object;
A program that functions as a collision determination unit that determines that an object has collided with another object when the acquired position information satisfies a predetermined condition. Computer equipment,
The program according to claim 1, wherein the program is caused to function as a sound generation means for executing a sound generation process at a timing when the object is determined to have collided with another object by the collision determination means. When the collision determination means satisfies the predetermined condition for the position, movement speed, and / or acceleration of the virtual skeleton and / or the angle and / or angular velocity of the virtual joint formed from the virtual skeleton and the virtual skeleton, The program according to claim 1, wherein the program determines that has collided with another object. The program according to claim 2 or 3, wherein the sound generation means generates different sounds depending on the object determined to have collided. The program according to any one of claims 2 to 4, wherein the sound generation means generates different sounds according to other objects determined to have collided. The object is the foot of the character,
The collision determination unit calculates the moving speed of the virtual skeleton of the foot and the virtual joint formed by the virtual skeleton of the foot and the virtual skeleton of the leg calculated based on the positional information acquired by the positional information acquiring unit. The program according to claim 1, wherein when the angle satisfies a predetermined condition, it is determined that the object has collided with another object. Position information acquisition means for acquiring position information related to the position of the virtual skeleton possessed by the object;
A computer apparatus comprising: a collision determination unit that determines that an object has collided with another object when the acquired position information satisfies a predetermined condition. A determination method executed in a computer device,
Obtaining position information regarding the position of the virtual skeleton possessed by the object;
And a step of determining that the object has collided with another object when the acquired position information satisfies a predetermined condition.

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