JP2004148111A - Image generating system, program, and information storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image generating system, program and information storage medium capable of enhancing the feeling of virtual reality on mental factors etc. <P>SOLUTION: When moving objects OB1 and OB2 get in a close relation (in a pressure relation), the value of pressure parameter (first parameter) is changed, and an action changing event (spinning, off course, etc.) is generated when the pressure parameter reaches a threshold. A parameter display object POB (pressure meter) is displayed for visually displaying the change of the pressure parameter value. The parameter display object is displayed corresponding to each of the plurality of moving objects. The threshold and the rate of change of the pressure parameter value are set for each moving object, and the length of the parameter display object is changed according to the threshold. <P>COPYRIGHT: (C)2004,JPO

Description

  The present invention relates to an image generation system, a program, and an information storage medium.

  Conventionally, an image generation system (game system) that generates an image that can be seen from a given viewpoint (virtual camera) in an object space, which is a virtual three-dimensional space, is known. Popular. Taking an image generation system capable of enjoying a competitive game (car game) as an example, a player uses a control unit (steering, shift lever, accelerator pedal, brake pedal, etc.) to move a moving object (own player moving object, own game object). A game is enjoyed by operating a car and competing with a moving object (another player moving object, another car) operated by another player (a computer player or another human player).

  However, conventional competitive games have not considered the effects of psychological factors such as pressure on the game. For this reason, psychological warfare elements that play an important role in the competition are not taken into consideration, the humanistic and emotional game production cannot be realized, and the virtual reality of the player cannot be improved.

  In this case, for example, a method of measuring the distance between the computer car operated by the computer and the player car operated by the player and the time during which the distance is maintained to put pressure on the computer car can be considered.

However, this method does not depend on the course shape such as a curve or a straight line, and the computer car is always pressured at the same fixed distance, so that it is not possible to realize a game effect that the player can be satisfied with.
JP-A-11-137743

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an image generation system, a program, and an information storage medium capable of enhancing virtual reality about psychological elements and the like. It is to provide.

  The present invention is an image generation system that generates an image, and includes a movement processing unit that performs processing for moving the first and second moving objects in the object space, and an image that can be viewed from a given viewpoint in the object space. A parameter for performing processing for changing the value of the first parameter of the second moving object when it is determined that the image generating unit to be generated, and the first moving object and the second moving object are in an approaching relationship. And a behavior change processing unit that generates a behavior change event that changes the behavior of the second moving object when it is determined that the value of the first parameter of the second moving object has reached a threshold value. And a parameter for performing a process of displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object. Relating to an image generation system that includes a display processing unit. The present invention also relates to a program that causes a computer to function as each of the above-described units. The present invention also relates to a computer-readable information storage medium that stores (records) a program that causes a computer to function as each unit.

  In the present invention, when the first and second moving objects are in an approaching relationship, the value of the first parameter changes, and when the value of the first parameter reaches a threshold value, the behavior change of the second moving object changes. An event (an event for changing behavior) occurs. Thereby, it becomes possible to improve the virtual reality about psychological elements. Further, in the present invention, when the first and second moving objects are in an approaching relationship, the value of the first parameter changes, and a parameter display object that visually indicates the change in the value of the first parameter is displayed. . Thus, the player can visually recognize the value of the first parameter that changes due to the approaching relationship.

  The shape of the parameter display object is arbitrary, and may be arranged in the object space, or may be displayed (arranged) on the two-dimensional screen as a sprite. The approach relationship can be determined in consideration of not only the position information (position relationship and direction relationship) of the moving object but also the speed information and acceleration information of the moving object. The behavior change event may be, for example, changing behavior control (movement or motion control) of the second moving object, or parameters of the second moving object (parameters other than the first parameter, behavior control parameters, ability parameters). ) Can be realized.

  In the image generation system, the program, and the information storage medium according to the present invention, when the parameter processing unit detects that the time difference between the first and second moving objects is smaller than a given set time difference, It may be determined that the second moving object is in an approaching relationship. In this way, although the time difference is small, it is possible to prevent a situation in which it is determined that the relationship is not close because the speed is high and the distance is long. In addition, although the time difference is large, the speed is slow and the distance is short, so that it is possible to prevent a situation in which it is determined that there is an approaching relationship. Therefore, it is possible to provide a method for determining an approach relationship in which a player is less likely to feel unnaturalness than a method for determining an approach relationship based on only a distance or time.

  In the image generation system, program, and information storage medium according to the present invention, the first moving object is positioned within a given distance range in which the parameter processing unit becomes longer as the speed of the second moving object increases. In this case, it may be determined that the time difference between the first and second moving objects is smaller than a given set time difference. If the approach relation is determined based on the pseudo time difference in this way, the processing load can be reduced.

  In the image generation system, the program, and the information storage medium according to the present invention, the parameter processing unit is configured such that the first moving object is located within a given distance range that increases as the speed of the second moving object increases. In addition, when the ratio of the speed of the first moving object to the speed of the second moving object is equal to or greater than a given setting ratio, the value of the first parameter of the second moving object may be changed. Good. In this way, since the approach relationship can be determined in consideration of the speed of the first moving object, a judgment criterion close to that when using a strict time difference is used while using a pseudo time difference. , Can determine the approach relationship.

  In the image generation system, the program, and the information storage medium according to the present invention, the parameter processing unit has a larger rate of change as the time difference between the first and second moving objects becomes smaller, and the first moving object has the first moving object. The parameter value may be changed.

  In the image generation system, the program, and the information storage medium according to the present invention, the parameter processing unit causes the time difference between the first and second moving objects to be smaller than an intermediate set time difference that is smaller than the given set time difference. Is also smaller, the value of the first parameter of the second moving object is changed until the threshold value is reached, and the time difference between the first and second moving objects is greater than the intermediate set time difference. When the difference is smaller than a given set time difference, the value of the first parameter of the second moving object may be changed only to an intermediate value smaller than the threshold value. In this way, when the first moving object is not so close to the second moving object, the value of the first parameter does not reach the threshold value, and the behavior change event does not occur. Become. As a result, it is possible to provide a method for determining an approach relationship that makes it difficult for the player to feel unnaturalness.

  In the image generation system, the program, and the information storage medium according to the present invention, the parameter processing unit performs the first movement outside the first and second distance ranges set in front and behind the second moving object. When the object is located, the value of the first parameter of the second moving object that has changed due to the approach relation is reset or decreased, and the first parameter set in front of the second moving object is set. When the first moving object is located within the distance range, the value of the first parameter may not be changed. In this way, when the first moving object is located in the first distance range ahead, the competition between the first and second moving objects can be continued as it is. The first and second distance ranges may be distance ranges representing time differences (first and second time differences), or may be constant distance ranges.

  In the image generation system, the program, and the information storage medium according to the present invention, the first and second distance ranges may be distance ranges that increase as the speed of the second moving object increases.

  In the image generation system, the program, and the information storage medium according to the present invention, when the parameter processing unit is located in the third distance range set behind the second moving object, The value of the first parameter of the second moving object may be changed with a larger change rate as the distance between the first and second moving objects in the direction orthogonal to the traveling direction becomes longer. According to the present invention, when the first moving object is located in the third distance range, the first moving object is changed at a rate of change according to the distance in the direction orthogonal to the traveling direction (horizontal direction, vertical direction). The parameter value will change. Therefore, when the first moving object moves in a direction orthogonal to the traveling direction, the rate of change of the first parameter increases, and the occurrence of a behavior change event of the second moving object is accelerated, which is a realistic competitive game. Can be realized. The third distance range may be a distance range representing a time difference (third time difference) or may be a constant distance range.

  In the image generation system, program, and information storage medium according to the present invention, the third distance range may be a distance range that increases as the speed of the second moving object increases.

  In the image generation system, the program, and the information storage medium according to the present invention, when the plurality of second moving objects move in the object space, at least one of the threshold value and the change rate of the first parameter is the first parameter. It may be set for every two moving objects. When at least one of the threshold value and the change rate is changed for each second moving object, the shape and color (property) of the parameter display object that visually indicates the change in the value of the first parameter. At least one of them may be different for each second moving object.

  In the image generation system, the program, and the information storage medium according to the present invention, the first of each second moving object is determined according to the relative relationship between the first moving object and each of the plurality of second moving objects. At least one of the threshold value and the change rate of the parameter may be set. Here, the relative relationship is, for example, a capability difference between moving objects, a type difference relationship, or the like.

  In the image generation system, the program, and the information storage medium according to the present invention, the parameter display processing unit increases the second moving threshold as the first parameter threshold value set for each second moving object increases. You may make it lengthen the length of the parameter display object displayed corresponding to each of objects. In this way, the player can easily determine how much the first parameter can be changed to generate the action change event of the second moving object by looking at the length of the parameter display object. Can grasp.

  In addition, the present invention is an image generation system that performs image generation, and includes a movement processing unit that performs processing for moving the first and second moving objects in the object space, and an image that can be seen from a given viewpoint in the object space. When it is determined that the image generation unit that generates the image and the first moving object and the second moving object are in an approach relationship, a process of changing the value of the first parameter of the second moving object is performed. The present invention relates to an image generation system including a parameter processing unit and a parameter display processing unit that performs a process of displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object. The present invention also relates to a program that causes a computer to function as each of the above-described units. The present invention also relates to a computer-readable information storage medium that stores (records) a program that causes a computer to function as each unit.

  In the present invention, when the first and second moving objects are in an approaching relationship, the value of the first parameter changes, and a parameter display object that visually indicates the change in the value of the first parameter is displayed. Thus, the player can visually recognize the value of the first parameter that changes due to the approaching relationship.

  In the image generation system, the program, and the information storage medium according to the present invention, when the plurality of second moving objects move in the object space, the parameter display processing unit performs each of the plurality of second moving objects. You may make it perform the process which displays the parameter display object which shows the change of a 1st parameter corresponding to each of a 2nd moving object.

  In the image generation system, the program, and the information storage medium according to the present invention, even if the first parameter of the second moving object is a pressure parameter that virtually represents the degree of pressure applied to the second moving object. Good. Note that the first parameter is not limited to the pressure parameter. For example, as the first parameter, another parameter representing a psychological element or the like can be adopted.

  Hereinafter, the present embodiment will be described with reference to the drawings. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

1. Configuration FIG. 1 shows an example of a functional block diagram of an image generation system (game system) of the present embodiment. Note that the image generation system according to the present embodiment does not need to include all the units (functional blocks) in FIG. 1 and omits some of them (for example, the operation unit 160, the portable information storage device 194, or the communication unit 196). It is good also as a structure.

  The operation unit 160 is used by a player to input operation data, and functions thereof are hardware such as a lever, button, steering, shift lever, accelerator pedal, brake pedal, microphone, sensor, touch panel, or chassis. realizable.

  The storage unit 170 serves as a work area such as the processing unit 100 or the communication unit 196, and its function can be realized by hardware such as a RAM.

  The information storage medium 180 (computer-readable medium) stores programs, data, and the like, and functions as an optical disk (CD, DVD), magneto-optical disk (MO), magnetic disk, hard disk, and magnetic tape. Alternatively, it can be realized by hardware such as a memory (ROM). The processing unit 100 performs various processes of this embodiment based on a program (data) stored in the information storage medium 180. That is, the information storage medium 180 stores (records and stores) a program for causing the computer to function as each unit of the present embodiment (a program for causing the computer to implement each unit).

  The display unit 190 outputs an image generated according to the present embodiment, and its function can be realized by hardware such as a CRT, LCD, touch panel, or HMD (head mounted display).

  The sound output unit 192 outputs the sound generated by the present embodiment, and its function can be realized by hardware such as a speaker or headphones.

  The portable information storage device 194 stores player personal data, game save data, and the like. As the portable information storage device 194, a memory card, a portable game device, and the like can be considered.

  The communication unit 196 performs various controls for communicating with the outside (for example, a host device or other image generation system), and functions thereof are hardware such as various processors or a communication ASIC, It can be realized by a program.

  Note that a program (data) for causing a computer to function as each unit of this embodiment is distributed from the information storage medium of the host device (server) to the information storage medium 180 (storage unit 170) via the network and the communication unit 196. You may do it. Use of such an information storage medium of the host device (server) is also included in the scope of the present invention.

  The processing unit 100 (processor) performs various processes such as a game process, an image generation process, and a sound generation process based on operation data from the operation unit 160, a program, and the like. In this case, the processing unit 100 performs various processes using the main storage unit 172 in the storage unit 170 as a work area. The function of the processing unit 100 can be realized by hardware such as various processors (CPU, DSP, etc.) or ASIC (gate array, etc.) and a program (game program).

  The processing unit 100 includes a movement processing unit 110, an operation processing unit 112, a parameter processing unit 114, a behavior change processing unit 116, a parameter display processing unit 118, an image generation unit 120, and a sound generation unit 130. Note that the processing unit 100 does not need to include all these units (functional blocks), and some of them may be omitted.

  The movement processing unit 110 performs processing for obtaining movement information (position information, direction information, speed information, or acceleration information) of a moving object (object). That is, a process of moving the moving object in the object space is performed based on operation data input by the player through the operation unit 160, a game program, or the like.

  More specifically, the movement processing unit 110 changes the position and rotation angle (direction) of the moving object, for example, every frame (1/60 seconds, 1/30 seconds, etc.). For example, the position (X, Y or Z coordinate) of the moving object in the (k-1) frame and the rotation angle (rotation angle about the X, Y or Z axis) are Pk-1, θk-1, and one frame of the object The position change amount (speed) and the rotation change amount (rotation speed) at. Then, the position Pk and the rotation angle θk of the moving object in the k frame can be obtained by, for example, the following expressions (1) and (2).

Pk = Pk-1 + ΔP (1)
θk = θk-1 + △ θ (2)
The motion processing unit 112 performs processing for obtaining motion information of the moving object (position information and direction information of each part of the moving object). That is, based on operation data input by the player through the operation unit 160, a game program, or the like, a process of moving (moving or animation) the moving object is performed.

  More specifically, the motion processing unit 112 performs processing for reproducing the motion of the moving object based on the motion data. That is, motion data including the position or rotation angle (direction) of each part object (bone constituting the skeleton) constituting the moving object (model object, skeleton, character) is stored from the storage unit 170 (motion data storage unit). read out. Then, by moving each part object (bone) of the moving object (by deforming the skeleton shape), the motion of the moving object is reproduced.

  The parameter processing unit 114 performs a process of changing (increasing or decreasing) the value of the parameter (status parameter) of the moving object (first and second moving objects).

  More specifically, the first parameter of the second moving object is determined when it is determined that the first moving object (viewpoint) and the second moving object are in the close relationship (given positional relationship). Change the value of. In other words, the position information (position coordinates) of the first and second moving objects, the speed information of the first moving object (the relative speed difference between the first and second moving objects), and the first The value of the first parameter is changed based on at least one of acceleration information of one moving object (relative acceleration difference between the first and second moving objects). In other words, when it is determined that the first moving object has a relationship of giving pressure (virtual pressure) to the second moving object, the pressure parameter of the second moving object Change the value.

  Here, the first and second moving objects are objects that move in an object space (game space) when operated by a player (human player, computer player), for example.

  The first moving object and the second moving object are close to each other when the first and second moving objects are close to each other. For example, the position information of the first and second moving objects (first Based on the distance between the first and second moving objects, this approach relationship (a relationship determined by the position and direction) can be determined. Alternatively, the approach relationship (position relationship) may be determined based on the position information of the first and second moving objects and at least one of the speed information and acceleration information of the first moving object. Alternatively, based on the position information of the first and second moving objects, at least one of speed information and acceleration information of the first moving object, and at least one of speed information and acceleration information of the second moving object A relationship (positional relationship) may be determined. Alternatively, the approach relationship (positional relationship) may be determined in consideration of the direction relationship between the first and second moving objects.

  More specifically, the parameter processing unit 114 can determine whether or not the first and second moving objects are in the close relationship based on the time difference between the first and second moving objects. For example, when the time difference TD of the first moving object relative to the preceding second moving object in the competitive game becomes smaller than a given set time difference TS (which may be variable), the first and second moving objects Is determined to be in an approaching relationship, and processing for changing the parameter of the second moving object is performed.

  Strictly speaking, the time difference is a difference between the passing times of the first and second moving objects at each point (first to Jth points) on the course. For example, the passing time of the second moving object at the point I (1 ≦ I ≦ J) on the course is TI2 (for example, 30 seconds), and the passing time of the first moving object behind is TI1 (for example, 31). Second), the time difference at the first point is TD = TI1-TI2 (for example, 1 second). However, the time difference is not limited to a time difference in a strict sense, and may be a pseudo time difference. For example, when the first moving object is located within a distance range that increases as the speed of the second moving object increases, the time difference TD between the first and second moving objects becomes smaller than the set time difference TS. You may decide that Further, the first moving object is located within such a distance range, and the ratio of the speed of the first moving object to the speed of the second moving object is equal to or higher than a set ratio (for example, 1.0 or higher, or 0. (8 to 0.9 or more), the value of the first parameter may be changed. In this way, it is possible to determine the approach relationship between the first and second moving objects using the pseudo time difference without calculating the passing time difference at each point on the course.

  The parameter processing unit 114 also includes the first moving object outside the first and second distance ranges (the distance range that increases as the speed of the second moving object increases) ahead and behind the second moving object. If it is located, a process of resetting (decreasing) the value of the first parameter is performed. On the other hand, when the first moving object is located in the first distance range (distance range narrower than the second distance range), the resetting (decreasing) process of the first parameter value is not performed, but simply The first parameter is not changed from the previous value.

  Further, the parameter processing unit 114 sets the first distance in the third distance range behind the second moving object (the distance range that is narrower than the second distance range and increases as the speed of the second moving object increases). When the moving object is located, the following processing can be performed. That is, the distance (relative distance) between the first and second moving objects in the direction (X direction and Y direction in the course coordinate system) orthogonal to the traveling direction (the direction along the course; the Z direction in the course coordinate system). The longer the value is, the larger the rate of change is, and the value of the first parameter is changed.

  Note that the first parameter is a parameter (a parameter for determining whether or not to generate a behavior change event) that affects the behavior change of the moving object (second moving object). More specifically, the first parameter is a parameter that virtually represents a psychological element of the moving object (a human player or a computer player who operates the moving object). More specifically, the first parameter is a pressure parameter that virtually represents the degree of pressure (tension) applied to the moving object (a human player or a computer player who operates the moving object).

  The behavior change processing unit 116 performs processing for changing the behavior of the moving object. More specifically, when it is determined that the value of the first parameter of the moving object (second moving object) has reached the threshold value (exceeded the threshold value), the action (movement) of the moving object Behavior change event (event for changing the behavior of the moving object) is generated.

  Here, when a behavior change event occurs, behavior control (movement control and motion control by the movement processing unit 110 and the movement processing unit 112) different from that before the occurrence of the behavior change event is performed on the moving object. . For example, normal behavior control was performed on a moving object before the behavior change event occurred, but when a behavior change event occurs, special behavior control (control for behavior change) is applied to the moving object. Against. And a moving object comes to move or operate | move by this special action control.

  Further, when a behavior change event occurs, a parameter (parameter other than the first parameter, behavior control parameter, ability parameter) of the moving object (second moving object) may be changed. For example, when a behavior change event occurs, a speed control parameter, an acceleration control parameter, a deceleration control parameter, a direction control parameter, a stability parameter, an attack power parameter, a defensive power parameter, or the like of the moving object may be changed. More specifically, when a behavior change event occurs, the maximum speed (speed control parameter) of the moving object is slowed, the engine power (acceleration control parameter) is decreased, the brake performance (deceleration control parameter) is decreased, Steering performance (direction control parameter) may be taken. Alternatively, when a behavior change event occurs, the weapon performance (attack power parameter) of the moving object may be decreased, or the shield performance or radar performance (defense power parameter) may be decreased.

  The parameter display processing unit 118 performs processing for displaying the parameters of the moving object.

  More specifically, a process of displaying a parameter display object (parameter gauge) that visually indicates a change in the value of the first parameter of the moving object (second moving object) is performed. Here, the parameter display object may be arranged three-dimensionally in the object space, or may be arranged (displayed) as a sprite on the two-dimensional screen. In addition, the shape of the parameter display object may be various shapes such as a rectangle and a circle.

  The parameter display object may be displayed in association with each of a plurality of moving objects (second moving objects). In this case, a parameter display object may be arranged near the position of each moving object. For example, a parameter display object for moving object A is arranged near the position of moving object A for moving object A, and a parameter display object for moving object B is arranged near the position of moving object B for moving object B. Deploy.

  The parameter display processing unit 118 displays the parameter display object displayed in association with each of the second moving objects in accordance with the threshold value of the first parameter set for each of the second moving objects. Change aspects. More specifically, the larger the threshold value of the first parameter, the longer the parameter display object.

  The image generation unit 120 performs drawing processing based on the results of various processes performed by the processing unit 100, thereby generating an image and outputting the image to the display unit 190. That is, when generating a so-called three-dimensional game image, first, geometric processing such as coordinate transformation, clipping processing, perspective transformation, or light source processing is performed, and based on the processing result, drawing data (the vertex of the primitive surface) Position coordinates, texture coordinates, color data, normal vector, α value, etc.) are created. Then, based on the drawing data (primitive surface data), the object (one or a plurality of primitive surfaces) after the perspective transformation (after the geometry processing) has the image information in pixel units such as a drawing buffer 174 (frame buffer, work buffer, etc.). It is drawn in a buffer that can be stored. Thereby, an image that can be seen from the virtual camera (given viewpoint) in the object space is generated.

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

  Note that the image generation system of the present embodiment may be a system dedicated to the single player mode in which only one player can play, or not only the single player mode but also a multiplayer mode in which a plurality of players can play. The system may also be provided.

  Further, when a plurality of players play, game images and game sounds to be provided to the plurality of players may be generated using one terminal, or connected via a network (transmission line, communication line) or the like. Alternatively, it may be generated using a plurality of terminals (game machine, mobile phone).

2. Next, the method of this embodiment will be described with reference to the drawings.

2.1 Pressure Parameter In this embodiment, a pressure parameter (first parameter in a broad sense; the same applies to the following description) that virtually represents the degree of pressure is newly introduced.

  For example, in FIG. 2A, the moving object OB1 (first moving object, viewpoint) and the moving object OB2 (second moving object) are moving in the object space (on the course). In FIG. 2A, OB1 and OB2 are not in an approaching relationship. For example, the distance between OB1 and OB2 (straight distance, distance along the course, etc.) is long. More specifically, the time difference between OB1 and OB2 (the time difference obtained by dividing the distance by the speed) is large. In this case, the value of the pressure parameter is not changed as indicated by A1 in FIG.

  On the other hand, in FIG. 2B, the moving objects OB1 and OB2 are close to each other. For example, the distance between OB1 and OB2 is short. More specifically, the time difference between OB1 and OB2 is small. In this case, the value of the pressure parameter (psychological parameter) is changed (increased) as indicated by A2 in FIG. As a result, it is possible to simulate that pressure is applied to the player of the moving object OB2.

  In FIG. 2C, the approaching relationship between the moving objects OB1 and OB2 is continuously maintained, so that the value of the pressure parameter reaches its threshold value (maximum value) as indicated by A3. Then, as shown in FIG. 2 (D), an action change event of the moving object OB2 subjected to pressure occurs. More specifically, OB2 performs a reaction due to pressure being applied. In other words, OB2 takes a mistake (operation mistake) action (movement, movement). More specifically, the accelerator is opened too early and OB2 spins. Alternatively, the brake operation is delayed too much and OB2 greatly disengages the line. Or the entry speed to the corner is too fast and OB2 goes out of the course (collises with the wall). Or OB2 does not pass the corner well and OB2 shortcuts the corner. Or the tire of OB2 will lock by performing excessive brake operation.

  These behavior changes of the moving object OB2 can be realized, for example, by causing an operation error of a player (computer player, human player) who operates the OB2. For example, when the player who operates OB2 is a computer player, an operation error may be generated by changing the operation (accelerator operation, brake operation, steering operation, etc.) based on the algorithm. Further, when the player who operates OB2 is a human player, even if the player performs a correct operation, an operation error may be generated by changing the operation of the player.

  According to the method of the present embodiment as described above, an element of psychological warfare in motor sports that applies pressure to a player of a moving object that runs ahead can be introduced into the game. For example, it is possible to create a situation where a player (computer player) of a moving object in front is psychologically caught up and finally makes a mistake by running closely behind a moving object (computer car) that runs in front. it can. Thereby, the range of play of a player can be expanded and an emotional race can be produced.

  In a special situation or the like, even if the value of the pressure parameter reaches a threshold value (maximum value), a behavior change may not be caused.

2.2 Display of pressure parameters In this embodiment, parameter display objects (pressure meter, pressure gauge, pressure bar in a narrow sense) indicating changes in the value of the pressure parameter (first parameter) of the moving object are displayed. .

  For example, in FIG. 3A, a parameter display object POB (changed in pressure parameter value of the moving object OB2 (second moving object) running in front of the player moving object (first moving object, player viewpoint) is displayed. Pressure meter) is displayed (arranged). The POB in this case can be expressed by, for example, a two-dimensional sprite used for displaying a score or a speedometer on a two-dimensional screen. The POB represented by the two-dimensional sprite is displayed at a fixed position on the screen without following the moving object OB2 even if it moves.

  On the other hand, in FIG. 3B, parameter display objects POB-A and POB-B indicating changes in the value of the pressure parameter (first parameter) of each of the plurality of moving objects OB2-A and OB2-B are represented by OB2. -A and OB2-B are displayed (arranged) in association with each other. That is, POB-A represents a change in the value of the pressure parameter of OB2-A, POB-B represents a change in the value of the pressure parameter of OB2-B, and these POB-A and POB-B represent OB2- Move following A and OB2-B. Similarly to OB2-A and OB2-B, POB-A and POB-B increase as they approach the viewpoint, and decrease as they move away from the viewpoint (perspective projection conversion). In this case, POB-A and POB-B may be represented by objects composed of polygons (primitives in a broad sense), etc., as in OB2-A and OB2-B, and the size depends on the distance from the viewpoint. It may be expressed by a three-dimensional sprite that changes. In FIG. 3B, two parameter display objects POB-A and POB-B are displayed in association with two moving objects OB2-A and OB2-B, but three or more moving objects are displayed. Three or more parameter display objects may be displayed in association with each other.

  If such a parameter display object is displayed, the player can visually see how other players (computer players and other human players) who operate moving objects running forward are being psychologically driven by pressure. Can be recognized. That is, it can be recognized that other players are chased by looking at the increase in the pressure parameter value of the parameter display object. Accordingly, psychological warfare elements can be included in the game, and the degree of immersion of the player in the game can be increased.

  When the pressure parameter value of the parameter display object (first parameter value in a broad sense) reaches the threshold value (maximum value), the entire parameter display object (bar) blinks, etc. The player may easily recognize that the threshold value has been reached. In this way, the player can predict that the moving object in front will make an operation error, and it becomes easy to avoid or overtake the moving object in front.

  Further, the color or shape of the parameter display object may be changed according to the value of the pressure parameter.

  The parameter display object is not limited to the rectangular shape as shown in FIGS. 3A and 3B, and may be a circular shape (pie graph) or the like.

  Further, the name of the moving object, the name of the player who operates the moving object, and the like may be displayed in association with the parameter display object.

  Further, when a plurality of moving objects are running, not only the parameter display objects of all the moving objects are displayed, but only the parameter display objects of the closest moving object (the closest moving object) may be displayed. . In other words, the parameter display object may not be always displayed, but may be displayed only when another moving object approaches. In this case, the parameter display object may be displayed at a fixed position on the screen regardless of the position of the moving object as shown in FIG. 3A, or the moving object as shown in FIG. It may be displayed so as to follow the movement. 3A and 3B, when the pressure parameter (first parameter) reaches a threshold value, an event different from the behavior change event may be generated. .

  Further, the state of change in the value of the pressure parameter (first parameter) may be expressed not by a parameter display object but by sound or the like. That is, in response to a change in the value of the pressure parameter (first parameter) (when the first and second moving objects are in an approaching relationship), an image generation system such as a game sound (BGM, sound effect, or sound) outputs Sound).

  For example, according to the change in the value of the pressure parameter (first parameter) (when OB1 and OB2 are close to each other), the voice of the character (pseudo player) riding on the moving object OB2 or the moving object OB2 is changed. In other words, the voice of the character riding on the moving object OB2 or OB2 is changed to a voice that feels irritated, is changed to a provocative voice, or the volume, tone, etc. of the voice are changed. More specifically, a voice (voice pattern) such as “dangerous” or “whether it is extracted” is generated, the volume of the voice is increased, or the tone of the voice is increased.

  Or, according to the change of the value of the pressure parameter (first parameter) (when OB1 and OB2 are close to each other), the sound effect (engine sound, exhaust sound, moving sound, operating sound or wind noise) generated by the moving object OB2 is generated. Sound etc.) may be changed. That is, as the moving object OB1 approaches OB2, the sound effect volume is increased or the sound effect tone is increased.

  Alternatively, BGM (background music) flowing during the game may be changed in accordance with the change in the value of the pressure parameter (first parameter) (when OB1 and OB2 are in an approaching relationship). That is, the BGM is switched to another BGM (different musical score), or the BGM volume, tone, tempo, or the like is changed. More specifically, the normal BGM is switched to a BGM with a sense of tension or an up-tempo BGM, the volume of the BGM is increased, the tone of the BGM is increased, or the BGM tempo is increased.

  By doing as described above, the psychological state of the player who is being caught up by pressure can be expressed more realistically.

2.3 Setting of threshold value and change rate for each moving object In the present embodiment, at least the threshold value (maximum value) and the change rate (reference increase value, reference decrease value) of the pressure parameter (first parameter) are set. One can be set for each moving object. That is, the threshold value of the pressure parameter and the change rate can be set differently for each moving object.

  For example, in FIG. 4A, the moving objects OB1 and OB2-A are close to each other, and the threshold value of the pressure parameter in this case is set to the threshold value VTA for OB2-A, and the rate of change is OB2. -Change rate RCA for A is set. On the other hand, in FIG. 4B, the moving objects OB1 and OB2-B are close to each other, and the threshold value of the pressure parameter in this case is set to the threshold value VTB for OB2-B, and the rate of change is The change rate RCB for OB2-B is set. Therefore, for example, the threshold value of the pressure parameter can be increased (or decreased) for OB2-A, while the threshold value can be decreased (or increased) for OB2-B. Alternatively, the change rate of the pressure parameter can be increased (or decreased) for OB2-A, while the change rate can be decreased (or increased) for OB2-B.

  In this way, for example, by setting the threshold value small or setting the change rate large, it is possible to provide a moving object that easily makes an operation error due to pressure. On the other hand, by setting the threshold value large or setting the change rate small, it is possible to provide a moving object that does not easily cause an operation error even when pressure is applied. As a result, it is possible to simulate a mentally weak driver and a strong driver, and to give diversity to a psychological battle of a competitive game.

  Note that the threshold and rate of change of the pressure parameter (first parameter) of the moving object are set according to the relative relationship between the moving objects (difference in ability, type, or size). May be.

  For example, in FIG. 5A, the moving object OB1 chasing the moving object OB2 is a light vehicle, whereas in FIG. 5B, OB1 is a truck. In this case, while being chased by the same moving object OB1, in FIG. 5A, while the threshold value of the pressure parameter of the moving object OB2 is set large or the rate of change is set small, FIG. In B), the threshold value of OB2 is set small or the change rate is set large. By doing so, it is possible to create a situation in which the pressure is higher when chased by a truck than when chased by a light vehicle, and the diversity of psychological warfare can be increased.

  Note that various modes are conceivable for setting the threshold and change rate based on the relative relationship between moving objects. For example, when a sports car with good performance or a police car is chased, the threshold value may be set small or the rate of change may be set large to express a large pressure.

  4A to 5B, threshold values and change rates are set for each moving object or for each relationship between moving objects. It can be realized by using.

  In addition, when the threshold value of the pressure parameter (first parameter) is varied for each moving object, it is desirable that the shape or color of the parameter display object is varied accordingly.

  Specifically, for example, as shown in FIGS. 4A to 5B, for a moving object having a large threshold value, the length of the parameter display object POB (bar) is increased to move the threshold value to a small value. For the object, the length of the parameter display object POB is shortened. In this way, the chasing player can easily recognize whether the chasing moving object is a moving object (driver) weak against pressure or a strong moving object, further increasing the fun of psychological warfare. Can do. Note that the shape or color of the parameter display object may be changed according to the difference in the change rate of the pressure parameter (first parameter).

2.4 Pressure Parameter Reset The value of the pressure parameter (first parameter) of this embodiment is reset (decreased) under a given condition. More specifically, the value of the pressure parameter is reset (or decreased) when the moving objects are no longer in the close relationship (given positional relationship).

  For example, in FIG. 6A, since the moving objects OB1 and OB2 are in an approach relationship (a given positional relationship), the value of the pressure parameter changes (increases). On the other hand, in FIG. 6B, since the moving objects OB1 and OB2 are in the non-approaching relationship (they are no longer in the given positional relationship), the change (increase) is obtained due to the approaching relationship (FIG. 6A). The value of the pressure parameter) is reset (or decreased). Specifically, the value of the pressure parameter becomes zero. As a result, the pressure caused by being chased by the moving object OB1 disappears as the OB1 moves away, and the psychological state released from the pressure can be expressed in a pseudo manner.

  Also, from the side of the moving object OB1, which is the chasing side, an operation error (behavior change in a broad sense) of OB2 cannot be induced unless the close relationship with the moving object OB2 is maintained. Therefore, the difficulty of applying pressure increases, and the fun of the game can be increased.

  If the moving object OB1 approaches the OB2 again after the pressure parameter value is reset, the pressure parameter changes (increases) again.

  Further, when the moving objects OB1 and OB2 are in the non-approaching relationship, the value of the pressure parameter may be decreased at a large change rate without immediately resetting.

  Further, when there are a plurality of moving objects OB2, it may be determined for each moving object whether or not a non-approaching relationship has been established, and the value of the pressure parameter may be reset (or decreased).

  2.5 Consideration of speed information and acceleration information

  In the present embodiment, not only the position information of the moving object but also the speed information or acceleration information of the moving object is taken into account, and the approach relationship between the moving objects (whether or not the given position relationship is reached) is determined. Can do.

  For example, in FIGS. 7A and 7B, the speed (or acceleration) of the moving object OB1 chasing the moving object OB2 is small, and in FIGS. 7C and 7D, the speed (or acceleration) of OB1 is large. In this case, in FIGS. 7C and 7D, even if the distance between the moving objects OB1 and OB2 is longer than in FIGS. 7A and 7B, it is determined that OB1 and OB2 are close to each other. Then, the value of the pressure parameter is changed. In other words, the distance at which the pressure parameter value is determined to be close and the pressure parameter value starts to change becomes longer as the speed (or acceleration) of OB1 increases. Therefore, the higher the speed (or acceleration) of the chasing moving object OB1, the earlier the time when pressure is applied to OB2, thereby realizing a real psychological warfare.

  Note that not only the speed information and acceleration information of the moving object OB1 (first moving object) but also the speed information and acceleration information of the moving object OB2 (second moving object) are considered, and the approach relationship between OB1 and OB2 ( (Positional relationship) may be determined. That is, the pressure parameter value may be changed by determining whether or not OB1 and OB2 are close to each other according to the relative speed difference or acceleration difference between OB1 and OB2. For example, the approach relationship between OB1 and OB2 may be determined based on speed information and acceleration information without considering position information.

  Further, the threshold value and the change rate of the pressure parameter (first parameter) may be changed based on the speed information and acceleration information of the moving object. For example, as the speed or acceleration of the moving object increases, the threshold value of the pressure parameter is decreased or the rate of change is increased. In this way, more realistic and diverse psychological warfare can be realized.

  Further, the threshold value and rate of change of the pressure parameter (first parameter) may be changed based on the positional relationship between the moving objects (position information, distance between the moving objects, approaching relationship). For example, the change rate of the pressure parameter is increased as the distance between the moving objects is shorter. In this way, it is possible to create a situation where the pressure increases as the moving objects approach each other.

  Note that the method of the present embodiment can be applied not only to a competitive game such as a car game but also to various games.

  For example, FIG. 8A shows an example in which the method of the present embodiment is applied to a basket game. In the case of the competitive game described with reference to FIGS. 2A to 2D, when the rear moving object OB1 approaches the front moving object OB2, pressure is applied to the front moving object OB2.

  On the other hand, in the basket game as shown in FIG. 8A, even when the moving object (character) OB1 is positioned in front of the moving object OB2, pressure is applied to OB2. When the value of the pressure parameter (POB) reaches the threshold value, an action change event of the moving object OB2 occurs, and it becomes easy to make a mistake. Specifically, the moving object OB2 loses the ball. Or it becomes easy to make a pass mistake and a shot mistake. Or, it becomes easy for another moving object to take the ball. Alternatively, the moving object OB2 falls. The behavior change of these moving objects OB2 can be realized by controlling the motion of OB2.

  FIG. 8B shows an example in which the method of the present embodiment is applied to a soccer game. In the case of FIG. 8B as well, when the moving objects OB1 and OB2 are in an approaching relationship, a behavior change event of OB2 occurs, and it becomes easy to make a mistake. Specifically, it loses the ball, makes a dribble mistake, a pass mistake or a shot mistake, makes it easy to take the ball, or falls.

  Note that the method of the present embodiment can be applied to various games such as sports games other than basket games and soccer games, fighting games, and shooting games.

2.6 Determination of Approach Relationship Based on Time Difference As described above, whether or not the moving objects OB1 and OB2 are in an approach relationship can be determined by the distance between OB1 and OB2, or by a time difference. You can also. However, in a competitive game such as a car game in which the moving objects OB1 and OB2 compete, the following problem arises when the approaching relationship between OB1 and OB2 is determined based only on the distance.

  For example, when the operating skill of the driver (human or computer) operating the moving objects OB1 and OB2 is the same, the time difference (lap difference) between OB1 and OB2 is substantially constant. When the time difference is constant, as shown in FIG. 9, since the speed is high on the course straight line, the distance DL between OB1 and OB2 is long, and the speed is slow at the corner of the course. Should be shorter.

  However, if the approach relationship between the moving objects OB1 and OB2 is determined based only on the distance DL, it is determined that the time difference is small but not the approach relationship on the straight line of the course. There is a risk that it will be judged. In the worst case, although the time difference between OB1 and OB2 is small and still in the close relationship, the value of the pressure parameter is reset on the straight line at the corner (see FIGS. 6A and 6B), and the player Causes unsatisfactory results.

  Therefore, it is desirable to determine the approach relationship between the moving objects OB1 and OB2 based on the time difference. That is, when the time difference TD becomes smaller than the set time difference TS, it is determined that OB1 and OB2 are in an approaching relationship, and the value of the pressure parameter of OB2 is changed. More specifically, the value of the pressure parameter is changed (increased) at a larger change rate (increase rate) as the time difference between OB1 and OB2 becomes smaller.

  However, it is difficult in the game processing to obtain a strict time difference (a difference in passing time at each point of the course). That is, if it is attempted to sequentially calculate the passing time of each point of the course, the calculation result data becomes enormous and the capacity of the storage unit for storing it becomes insufficient. Further, if the number of measurement points in the course is increased in order to obtain an accurate passage time, the processing load of calculation becomes excessive.

  Therefore, it is desirable to determine the approach relationship using a pseudo time difference instead of a strict time difference. Specifically, when the moving object OB1 is located within a distance range that increases as the speed of the moving object OB2 increases (a distance range following the movement of OB2), the time difference between OB1 and OB2 is greater than the set time difference. Judge that it has become smaller. In other words, the distance range that increases as the speed of the moving object OB2 increases is set to a range in which pressure is applied to OB2.

  For example, in FIGS. 10A and 10B, the distance range DR is a distance (distance distance) range that is short when the speed of the moving object OB2 is slow and long when it is fast. When the moving object OB1 is located within the distance range DR, it is determined that OB1 and OB2 are close to each other and pressure is applied to OB2. On the other hand, when the moving object OB1 is located outside the distance range DR, it is determined that OB1 and OB2 are in a non-approaching relationship, and pressure is not applied to OB2.

  In this way, the distance range DR, which is the pressure range, becomes longer on the straight line of the course in FIG. 9, and the distance range DR becomes shorter at the corner. Accordingly, in the straight line of the course, even if the distance DL is increased by increasing the speeds of OB1 and OB2, it is determined that OB1 and OB2 are in an approaching relationship. Therefore, it is possible to express the approach relationship based on the pseudo time difference with a small processing load.

  The time difference in a strict sense reflects not only the moving object OB2 but also the speed of OB1. Therefore, when OB1 is located in the DR within the distance range that becomes longer as the speed of OB2 increases, and the speed ratio (percentage) of OB1 and OB2 is equal to or higher than the set ratio, the value of the pressure parameter of OB2 is changed (increased). ) For example, in FIG. 10C, since the ratio VR = V1 / V2 of the speed V1 of OB1 to the speed V2 of OB2 is equal to or higher than the set ratio VRS, the value of the pressure parameter changes (increases). On the other hand, in FIG. 10D, since the speed ratio VR is smaller than the set ratio VRS, the value of the pressure parameter does not change.

  In this way, the approach relationship between OB1 and OB2 can be determined by reflecting not only the speed of the moving object OB2 but also the speed of OB1. Therefore, it is possible to determine the approach relationship based on a criterion that is close to the case of using a strict time difference while using a pseudo time difference based on the distance range DR.

  10C and 10D can be set to VRS = 1.0, for example. In this way, when OB1 located within the distance range DR is relatively close to OB2, the value of the pressure parameter of OB2 changes, and the time difference in a strict sense is reduced. The approach relationship can be determined based on a criterion that is close to that used.

  However, even if the skill of the driver is the same and the time difference is constant, the speed ratio VR of the moving objects OB1 and OB2 slightly changes due to a change in the operation of the driver and a change in the operation environment. Therefore, if the setting ratio is VRS = 1.0, the pressure parameter value does not change even when OB1 is relatively distant from OB2 due to operational fluctuations, etc., which makes the player unnatural. I feel it. Therefore, it is desirable that the setting ratio is, for example, about VRS = 0.8 to 0.9. In this way, even when OB1 is away from OB2 due to operational fluctuations or the like, the value of the pressure parameter continues to change, thereby preventing the player from feeling unnatural.

2.7 Intermediate Setting Time Difference If the moving object OB2 is not so close to OB1, but the approach relationship is maintained for a long time and the pressure parameter value reaches the threshold value, the player becomes unnatural. I can't realize realistic pressure expression.

  Therefore, it is desirable to change the value of the pressure parameter by the method shown in FIGS. That is, as shown in FIG. 11A, when the time difference TD between the moving objects OB1 and OB2 is smaller than the intermediate set time difference TSM, the value of the pressure parameter is changed until the threshold value is reached. On the other hand, as shown in FIG. 11B, when the time difference TD between the moving objects OB1 and OB2 is larger than the intermediate set time difference TSM and smaller than the set time difference TS, the value of the pressure parameter is set to the threshold value. Only change to an intermediate value smaller than the value. That is, the reach value of the pressure parameter is set to an intermediate value instead of the threshold value.

  In this way, the pressure parameter value reaches the threshold value only when the moving distance of OB1 is close to moving object OB2, as shown in FIG. 11A, and the driver of OB2 makes an operation error. The behavior change event will occur. As shown in FIG. 11B, when OB1 is not so close to OB2, the value of the pressure parameter does not reach the threshold value, and the behavior change event of OB2 does not occur. This can prevent the player from feeling unnatural.

  The intermediate set time difference TSM can be set to a value that is ½ of the set time difference TS, for example, but may be set to other values. Similarly, the intermediate value can be a value that is ½ of the threshold value, but may be other values. A plurality of intermediate values may be set.

2.8 Distance Range Before and Back In FIGS. 10A to 10D, the distance range DR for realizing a pseudo time difference is set behind the moving object OB2, but the DR is set to OB2. You may make it also set ahead. For example, in FIG. 12A, the first distance range DR1 (first time difference TS1) is set in front of OB2, and the second distance range DR2 (second time difference TS2) is set behind OB2. Has been.

  Then, as shown in FIGS. 12B and 12C, when the moving object OB1 is located outside the distance ranges DR1 and DR2 set in front of and behind the moving object OB2, FIGS. The pressure meter parameter reset (decrease) process is performed as described in (1).

  On the other hand, as shown in FIG. 12D, when the moving object OB1 is located in the distance range DR1 set in front of the moving object OB2, the reset (decrease) process is not performed and the pressure meter is changed to the previous one. It will only be kept unchanged from the value.

  That is, the state in which the moving object OB1 is located in the distance range DR1 in front of OB2 is a state in which OB1 approaching from the rear has removed OB2 and has come out in front of OB2. At this time, if the speeds of the moving objects OB1 and OB2 are not so different, OB1 is still subject to competition for OB2, and OB2 may extract OB1 again. Therefore, if the pressure parameter of the moving object OB2 is reset in such a case, the player will feel unnatural.

  Therefore, as shown in FIG. 12D, when the moving object OB1 is out of OB2 and is positioned in the distance range DR1 in front of OB2, the pressure parameter is not reset and neither increases nor decreases. Thereby, the state in which the moving object OB1 puts pressure on OB2 is maintained, and the battle due to competition between OB1 and OB2 is continued.

  The distance ranges DR1 and DR2 can be distance ranges that increase as the speed of the moving object OB2 increases, as in FIGS. 10A and 10B. In this way, it is possible to determine the approach relationship based on a pseudo time difference, instead of determining the approach relationship based only on the distance. The distance range DR1 is preferably a shorter distance range than DR2. By doing in this way, the moving object OB1 which has been far away forward can be excluded from the competition target of OB2. In other words, when viewed from OB1, OB2 that is far away backward can be excluded from the competition.

2.9 Change in pressure parameter value based on lateral displacement When moving object OB1 pulls forward moving object OB2 in a competitive game, it collides as it approaches from behind, so it moves horizontally and moves horizontally It is normal to pull it out of it. For example, in the straight line of the course as shown in FIG. 13A, when the moving object OB2 traveling along the traveling direction (Z direction) is pulled out, OB1 is a lateral direction (direction perpendicular to the traveling direction) ( Move in the X direction) and remove OB2. Further, at the corner of the course shown in FIG. 13B, since the moving object OB1 travels further inward than OB2, OB1 moves in the horizontal direction (X direction) and pulls out OB2. Then, the driver of the moving object OB2 should feel the most pressure when OB1 reflected in the mirror moves in the horizontal direction to pull out OB2. Therefore, in order to realize such a situation, the following method is adopted in the present embodiment.

  For example, in FIG. 13C, the third distance range DR3 is set behind the moving object OB2 traveling along the traveling direction (Z direction), and the moving object OB1 is located within the distance range DR3. Yes. This distance range DR3 is a shorter distance range than the distance range DR2 in FIG. Therefore, the state where the moving object OB1 is located in the distance range DR3 as shown in FIG. 13C represents a state where OB1 is quite close to OB2. The distance range DR3 represents a pseudo time difference (TS3), and is a distance range that increases as the speed of the moving object OB2 increases.

  When OB1 is thus positioned within the distance range DR3, in FIG. 13D, the distance (relative) between OB1 and OB2 in the direction (X direction) orthogonal to (crossing) the traveling direction (Z direction). When the distance is longer, the pressure parameter value of the moving object OB2 is changed (increased) at a rate of change that increases with the distance (deviation). That is, in this embodiment, the rate of change of the pressure parameter increases as the distance (time difference) between the moving objects OB1 and OB2 in the traveling direction becomes shorter. In addition, OB1 and OB2 in the direction orthogonal to the traveling direction are added. As the distance increases, the rate of change of the pressure parameter is increased. In this way, it is possible to reproduce the situation in which the driver of OB2 feels pressure by moving OB1 reflected in the mirror in the horizontal direction, and the realism of the game can be increased.

  In FIG. 13D, the rate of change of the pressure parameter is increased according to the relative moving distance of the moving object OB1 in the X direction (lateral direction). However, in a competitive game such as an airplane or a spaceship, The rate of change of the pressure parameter may be increased according to the relative movement distance in the Y direction (vertical direction) orthogonal to the traveling direction (Z direction).

  Further, the traveling direction is, for example, a direction along the course, and the traveling direction can be acquired from the course information, for example. That is, the traveling direction, course width, and position coordinates of each point at each point (each area) of the course are stored in the storage unit as course information in association with each point (each area) of the course. Accordingly, the traveling direction can be acquired by reading the traveling direction information in the course information associated with the point where the moving object is located. In addition, in order to perform a hit check between the course wall and the moving object, the distance in the direction orthogonal to the traveling direction is calculated. Therefore, even if the rate of change of the pressure parameter is controlled based on the calculated distance. Good. Further, whether or not the moving object OB1 is located in the distance range DR (DR1 to DR3) shown in FIGS. 10A to 10D can be determined based on the course information. Specifically, the position coordinates (point numbers) of course points corresponding to the moving objects OB1 and OB2 are acquired, and the distance between OB1 and OB2 is obtained based on the acquired position coordinates (point numbers). , It is determined whether or not OB1 is located within the distance range DR set behind OB2.

3. Processing of the present embodiment Next, processing of the present embodiment will be described using the flowcharts of FIGS.

  First, as shown in FIG. 14, it is determined whether all other player moving objects (moving objects operated by a computer player or another human player) have been processed (step S1), and other player moving objects that have not been processed are processed. Is present, a distance / time difference calculation process for other player moving objects is performed (step S2). Next, a pressure threshold value determination process for other player moving objects is performed (step S3), and a behavior change process is performed (step S4).

  FIG. 15 is a flowchart of the distance / time difference calculation process in step S2 of FIG. First, the distance between the player moving object (moving object operated by the player) and the other player moving object is obtained (step S11). This distance may be a linear distance between the player moving object and the other player moving object, a road distance along the course, or a distance in the depth direction.

  Next, a time difference TD is obtained from the distance and speed (step S12). For example, the time difference TD is obtained by dividing the distance obtained in step S11 by the speed of the player moving object. Note that the time difference TD may be obtained in consideration of not only the distance but also the acceleration of the own player moving object and the speed and acceleration of the other player moving object.

  FIG. 16 is a flowchart of the pressure threshold value determination process (parameter process) in step S3 of FIG. First, the time difference TD obtained in step S12 of FIG. 15 is compared with a given set time difference TS (a time difference serving as a reference for determining an approach relationship) (step S21). If TD ≧ TS, as described with reference to FIGS. 6A and 6B, the pressure parameter value PV is reset (step S22). Note that PV may be decreased at a large change rate.

  On the other hand, in the case of TD <TS, as described with reference to FIGS. 4A to 5B, the reference increase value RIV of the pressure parameter set for each other player moving object (reference change rate in a broad sense). Is acquired (step S23). Specifically, for example, the reference increase value RIV of the other player moving object is acquired based on a table in which the other player moving object is associated with the reference increase value.

  Next, an increase value IV (change rate in a broad sense) of the pressure parameter is obtained based on the difference between TS and TD and RIV (step S24). For example, the increase value IV is obtained so that the larger the difference between TS and TD, the larger the value. By doing so, it is possible to express the phenomenon that the pressure increases as the time difference decreases.

  Next, the obtained increase value IV is added to the pressure parameter value PV (step S25). Then, as described with reference to FIGS. 4A to 5B, the threshold VT (maximum value) of the pressure parameter set for each other player moving object is acquired (step S26). Specifically, for example, the threshold value VT of the other player moving object is acquired based on a table in which the other player moving object is associated with the threshold value.

  Next, it is determined whether or not the pressure parameter value PV has reached the threshold value VT (step S27). If it has been reached, the action change standby flag FST is set (step S28).

  FIG. 17 is a flowchart of the behavior change process in step S4 of FIG. First, it is determined whether or not the behavior change standby flag FST is set (step S31). If FST is set, it is determined that a behavior change event has occurred, and a behavior suitable for the current situation is searched from the behavior change pattern table (step S32). And, for example, the action of opening the accelerator too early at the exit of the corner (step S33), the action of spinning at an overspeed when entering the corner (step S34), the action of making a time mistake due to missed line ( Step S35) is selected. Then, the selected action is executed (step S36), and the action standby flag FST is reset (step S37).

  18 and 19 are flowcharts showing a detailed example of the approach relationship determination process based on the time difference. First, a distance D1 at which the moving object OB2 (computer car) can run in 0.5 seconds is obtained (step S41). Further, a distance D2 that the moving object OB2 can run in one second is obtained (step S42). These distances D1 and D2 correspond to the distance ranges DR1 and DR2 in FIG.

  Next, the relative distance D in the Z direction (traveling direction) of the course coordinate system (course information coordinate system, road coordinate system) of the moving objects OB1 (player car) and OB2 is obtained (step S43). Then, it is determined whether or not the distance D is -D1 <D <D2 (step S44). If -D1 <D <D2 is not satisfied, the pressure parameter value PV is reset (step S45), and the process is terminated. On the other hand, if -D1 <D <D2, it is determined whether or not the moving object OB1 is located behind OB2 (step S46). If the object is located behind but not behind, the pressure parameter value PV Is kept unchanged (step S47), and the process is terminated. As described above, the method described with reference to FIGS. 12A to 12D can be realized.

  Next, a pressure application rate R is obtained (step S48). Specifically, for example, the application rate R is obtained as in the following equation.

R = (D2-D) / (D2-D2 × 0.1) (3)
However, when R> 1, R = 1
As shown in FIG. 20A, the application rate R is R = 0.0 when D = D2 (1 second), and R = 1.0 when D is 0.1 seconds or less. As the application rate R increases, the degree of pressure applied to the driver of the moving object OB2 increases.

  Next, an increase value (increase amount) IV of the pressure parameter value PV corresponding to the application rate R is obtained (step S49). Specifically, for example, the increase value IV is obtained by the following equation.

IV = (MAX−MIN) × R ² + MIN (4)
As shown in FIG. 20B, the increase value IV becomes the minimum value MIN when R = 0.0, and becomes the maximum value MAX when R = 1.0. Further, when R is changed from 1.0 to 0.0, an increase value IV in proportion to ^{R 2} increases. By doing in this way, the increase value IV (PV change rate) of the pressure parameter value PV can be increased as the time difference between the moving objects OB1 and OB2 becomes smaller (R becomes larger).

  Next, it is determined whether or not the application rate R is greater than 0.8 (step S50). When R> 0.8, the increase value IV is recalculated based on the parameter DX set based on the relative distance X of the moving objects OB1 and OB2 in the course coordinate system X direction and the application rate R. (Step S51). Specifically, for example, the increase value IV is recalculated as follows. The relationship between the distance X and the parameter DX is as shown in FIG.

IV = IV + {IV × DX × (R−0.8)} / 0.2 (5)
If recalculation as described above is performed, for example, when DX = 1.0 and R = 1.0, the increase value IV becomes twice the original value, which has been described with reference to FIGS. The method can be realized.

  Next, the increase value IV (change rate) is multiplied by the pressure resistance rate TR (standard: 1, weak: 2, strong: 0.67) set for each driver (OB2) (step S52). By doing in this way, the method demonstrated in FIG. 5 (A) (B) is realizable.

  Next, a ratio VR = V1 / V2 between the speed V1 of the moving object OB1 and the speed V2 of OB2 is obtained (step S53). Then, it is determined whether or not the speed ratio VR is greater than or equal to the set ratio VRS (step S54). This setting ratio can be VRS = 0.9, for example. If VR <VRS, the process ends without performing the process of adding the increase value IV to the pressure parameter value PV (step S57). By performing the processing as described above, the method described in FIGS. 10C and 10D can be realized.

  On the other hand, if VR ≧ VRS, it is determined whether the application rate R is greater than 0.5 (application rate corresponding to the intermediate set time difference) (step S55). If R> 0.5, the increase rate IV is added to the pressure parameter value PV to obtain PV = PV + IV (step S57). On the other hand, if R ≦ 0.5, it is determined whether or not the pressure parameter value PV is smaller than 0.5 (intermediate value) (step S56). If PV <0.5, the increase rate IV is added to the pressure parameter value PV (step S57). On the other hand, if PV ≧ 0.5, the process ends without performing the process of adding the increase value IV to the pressure parameter value PV (step S57). By performing the processing as described above, the method described with reference to FIGS. 11A and 11B can be realized.

4). Hardware Configuration Next, an example of a hardware configuration capable of realizing the present embodiment will be described with reference to FIG.

  The main processor 900 operates based on a program stored in the CD 982 (information storage medium), a program transferred via the communication interface 990, or a program stored in the ROM 950 (one of information storage media). Various processes such as processing, image processing, and sound processing are executed.

  The coprocessor 902 assists the processing of the main processor 900, has a product-sum calculator and a divider capable of high-speed parallel calculation, and executes matrix calculation (vector calculation) at high speed. For example, if a physical simulation for moving or moving an object requires processing such as matrix operation, a program operating on the main processor 900 instructs (requests) the processing to the coprocessor 902. )

  The geometry processor 904 performs geometry processing such as coordinate transformation, perspective transformation, light source calculation, and curved surface generation, has a product-sum calculator and a divider capable of high-speed parallel computation, and performs matrix computation (vector computation). Run fast. For example, when processing such as coordinate transformation, perspective transformation, and light source calculation is performed, a program operating on the main processor 900 instructs the geometry processor 904 to perform the processing.

  The data decompression processor 906 performs a decoding process for decompressing the compressed image data and sound data, and a process for accelerating the decoding process of the main processor 900. As a result, a moving image compressed by the MPEG method or the like can be displayed on the opening screen, the intermission screen, the ending screen, or the game screen. Note that the image data and sound data to be decoded are stored in the ROM 950 and the CD 982 or transferred from the outside via the communication interface 990.

  The drawing processor 910 performs drawing (rendering) processing of an object composed of primitives (primitive surfaces) such as polygons and curved surfaces at high speed. When drawing an object, the main processor 900 uses the function of the DMA controller 970 to pass the object data to the drawing processor 910 and transfer the texture to the texture storage unit 924 if necessary. Then, the drawing processor 910 draws the object in the frame buffer 922 at high speed while performing hidden surface removal using a Z buffer or the like based on the object data and texture. The drawing processor 910 can also perform α blending (translucent processing), depth cueing, mip mapping, fog processing, bilinear filtering, trilinear filtering, anti-aliasing, shading processing, and the like. When an image for one frame is written in the frame buffer 922, the image is displayed on the display 912.

  The sound processor 930 includes a multi-channel ADPCM sound source and the like, and generates high-quality game sounds such as BGM, sound effects, and sounds. The generated game sound is output from the speaker 932.

  Operation data from the game controller 942 (lever, button, chassis, pad type controller, gun type controller, etc.), save data from the memory card 944, and personal data are transferred via the serial interface 940.

  The ROM 950 stores system programs and the like. In the case of an arcade game system, the ROM 950 functions as an information storage medium, and various programs are stored in the ROM 950. A hard disk may be used instead of the ROM 950.

  The RAM 960 is used as a work area for various processors.

  The DMA controller 970 controls DMA transfer between the processor and memory (RAM, VRAM, ROM, etc.).

  The CD drive 980 drives a CD 982 (information storage medium) in which programs, image data, sound data, and the like are stored, and enables access to these programs and data.

  The communication interface 990 is an interface for transferring data to and from the outside via a network. In this case, as a network connected to the communication interface 990, a communication line (analog telephone line, ISDN), a high-speed serial bus, or the like can be considered. By using a communication line, data transfer via the Internet becomes possible. Further, by using the high-speed serial bus, data transfer with other image generation systems becomes possible.

  Note that all the units (units) of the present embodiment may be realized only by hardware, or only by a program stored in an information storage medium or a program distributed via a communication interface. May be. Alternatively, it may be realized by both hardware and a program.

  And when each part of this embodiment is implement | achieved by both hardware and a program, the program for functioning hardware (computer) as each part of this embodiment is stored in an information storage medium. Become. More specifically, the program instructs each processor 902, 904, 906, 910, 930, etc., which is hardware, and passes data if necessary. Each of the processors 902, 904, 906, 910, 930 and the like implements each unit of the present invention based on the instruction and the passed data.

  FIG. 22A shows an example in which the present embodiment is applied to an arcade game system (image generation system). The player enjoys the game by operating the operation unit 1102 (lever, button) while watching the game image displayed on the display 1100. Various processors and various memories are mounted on the built-in system board (circuit board) 1106. A program (data) for realizing each unit of the present embodiment is stored in a memory 1108 that is an information storage medium on the system board 1106. Hereinafter, this program is referred to as a storage program (storage information).

  FIG. 22B shows an example in which the present embodiment is applied to a home game system (image generation system). The player enjoys the game by operating the controllers 1202 and 1204 while viewing the game image displayed on the display 1200. In this case, the stored program (stored information) is stored in a CD 1206, which is an information storage medium that is detachable from the main system, or in memory cards 1208, 1209, and the like.

  FIG. 22C shows a host device 1300 and terminals 1304-1 to 1304-n connected to the host device 1300 via a network 1302 (a small-scale network such as a LAN or a wide area network such as the Internet). An example in which the present embodiment is applied to a system including (game machine, mobile phone) is shown. In this case, the storage program (storage information) is stored in an information storage medium 1306 such as a magnetic disk device, a magnetic tape device, or a memory that can be controlled by the host device 1300, for example. When the terminals 1304-1 to 1304-n can generate game images and game sounds stand-alone, the host device 1300 receives a game program and the like for generating game images and game sounds from the terminal 1304-. 1 to 1304-n. On the other hand, if it cannot be generated stand-alone, the host device 1300 generates game images and game sounds, which are transmitted to the terminals 1304-1 to 1304-n and output at the terminals.

  In the case of the configuration of FIG. 22C, each unit of the present embodiment may be realized by being distributed between a host device (server) and a terminal. Further, the storage program (storage information) for realizing each unit of the present embodiment may be distributed and stored in the information storage medium of the host device (server) and the information storage medium of the terminal.

  The terminal connected to the network may be a home game system or an arcade game system.

  The present invention is not limited to that described in the above embodiment, and various modifications can be made.

  For example, terms (pressure parameters, pressure meters, movement / movement) cited as broad terms (first parameter, parameter display object, behavior, behavior change, change rate, reference change rate, etc.) in the description or drawings. Operation, operation error, increase value, reference increase value, etc.) can be replaced by broad terms in the description or other description in the drawings.

  In the present embodiment, the approach relationship (positional relationship) is described as an example of the relationship that gives the pressure, but the relationship that gives the pressure may be a relationship other than the approach relationship. For example, a given relationship is determined based on at least one of position (direction) information, velocity information, and acceleration information as to whether or not the first moving object is in a relationship that gives pressure to the second moving object. You may judge based on.

  In addition, the approach (pressure) determination method, the parameter display object display method, the parameter processing method, the behavior change event generation method, and the like are not limited to the method described in this embodiment, and various modifications can be made. It is.

  In the invention according to the dependent claims of the present invention, a part of the constituent features of the dependent claims can be omitted. Moreover, the principal part of the invention according to one independent claim of the present invention may be made dependent on another independent claim.

  Further, the present invention can be applied to various games (such as fighting games, competitive games, shooting games, robot battle games, sports games, role playing games, etc.).

  The present invention is also applicable to various image generation systems (game systems) such as a business game system, a home game system, a large attraction system in which a large number of players participate, a simulator, a multimedia terminal, and a system board for generating game images. Applicable.

It is a functional block diagram of the image generation system of this embodiment. 2A to 2D are explanatory diagrams of the parameter changing method. 3A and 3B are explanatory views of the pressure display object. FIGS. 4A and 4B are explanatory diagrams of threshold value and change rate setting methods. FIGS. 5A and 5B are also explanatory diagrams of the threshold value and change rate setting method. 6A and 6B are explanatory diagrams of a parameter value resetting method. FIGS. 7A to 7D are explanatory diagrams of approach relation determination in consideration of speed. 8A and 8B show application examples to various games. It is a figure explaining a time difference. FIGS. 10A to 10D are explanatory diagrams of a method for determining an approach relationship based on a time difference. FIGS. 11A and 11B are explanatory diagrams of a technique for not changing the parameter value to the threshold value when moving objects are separated from each other. 12A to 12D are explanatory diagrams of a method for setting a distance range before and after a moving object. FIGS. 13A to 13D are explanatory diagrams of a method of changing the change rate of the pressure parameter in accordance with the movement distance in the horizontal direction. It is an example of the flowchart of the process of this embodiment. It is an example of the flowchart of the process of this embodiment. It is an example of the flowchart of the process of this embodiment. It is an example of the flowchart of the process of this embodiment. It is an example of the flowchart of the process of this embodiment. It is an example of the flowchart of the process of this embodiment. 20A to 20D are diagrams for explaining the processing of the present embodiment. It is a hardware structural example. 22A to 22C show various types of system examples.

Explanation of symbols

OB1 first moving object, OB2 second moving object POB parameter display object, TD time difference, TS setting time difference,
100 processing unit, 110 movement processing unit, 112 motion processing unit,
114 parameter processing units, 116 behavior change processing units,
118 Parameter display processing unit, 120 Image generation unit, 130 Sound generation unit 160 Operation unit, 170 Storage unit, 172 Main storage unit, 174 Drawing buffer 176 Texture storage unit, 180 Information storage medium, 190 Display unit 192 Sound output unit, 194 Portable information storage device, 196 communication unit

Claims (29)

An image generation system for generating an image,
A movement processing unit for performing a process of moving the first and second moving objects in the object space;
An image generator that generates an image that can be seen from a given viewpoint in the object space;
A parameter processing unit that performs a process of changing the value of the first parameter of the second moving object when it is determined that the first moving object and the second moving object are in an approaching relationship;
A behavior change processing unit that generates a behavior change event that changes the behavior of the second moving object when it is determined that the value of the first parameter of the second moving object has reached a threshold;
A parameter display processing unit that performs a process of displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object;
An image generation system comprising: In claim 1,
The parameter processing unit
An image generation system, wherein when the time difference between the first and second moving objects becomes smaller than a given set time difference, it is determined that the first and second moving objects are in an approaching relationship. In claim 2,
The parameter processing unit
When the first moving object is located within a given distance range that increases as the speed of the second moving object increases, the time difference between the first and second moving objects is greater than the given set time difference. An image generation system characterized by determining that the size has become smaller. In claim 3,
The parameter processing unit
The first moving object is located within a given distance range that increases as the speed of the second moving object increases, and the ratio of the speed of the first moving object to the speed of the second moving object is given An image generation system characterized by changing the value of the first parameter of the second moving object when the ratio is equal to or greater than the set ratio. In any of claims 2 to 4,
The parameter processing unit
An image generation system characterized in that the value of the first parameter of the second moving object is changed at a larger change rate as the time difference between the first and second moving objects becomes smaller. In any of claims 2 to 5,
The parameter processing unit
When the time difference between the first and second moving objects is smaller than the intermediate setting time difference which is smaller than the given setting time difference, the value of the first parameter of the second moving object is set as a threshold. When the time difference between the first and second moving objects is larger than the intermediate setting time difference and smaller than the given setting time difference, the first moving object first An image generation system characterized by changing a parameter value only to an intermediate value smaller than a threshold value. In any one of Claims 1 thru | or 6.
The parameter processing unit
When the first moving object is located outside the first and second distance ranges set in front of and behind the second moving object, the second moving object changed due to the close relationship. When the first moving object is located in the first distance range set in front of the second moving object, the value of the first parameter is reset or decreased. An image generation system characterized by making the image non-changeable. In any one of Claims 1 thru | or 7,
The parameter processing unit
When the first moving object is located in the third distance range set behind the second moving object, the distance between the first and second moving objects in the direction orthogonal to the traveling direction increases. An image generation system characterized in that the value of the first parameter of the second moving object is changed at a large change rate. In any one of Claims 1 thru | or 8.
Image generation characterized in that, when a plurality of second moving objects move in the object space, at least one of the threshold value and the change rate of the first parameter is set for each second moving object. system. In claim 9,
According to the relative relationship between the first moving object and each of the plurality of second moving objects, at least one of the threshold value and the change rate of the first parameter of each second moving object is set. An image generation system characterized by that. In claim 9 or 10,
The parameter display processing unit
The length of the parameter display object displayed in association with each of the second moving objects is increased as the threshold value of the first parameter set for each of the second moving objects is increased. Image generation system. An image generation system for generating an image,
A movement processing unit for performing a process of moving the first and second moving objects in the object space;
An image generator that generates an image that can be seen from a given viewpoint in the object space;
A parameter processing unit that performs a process of changing the value of the first parameter of the second moving object when it is determined that the first moving object and the second moving object are in an approaching relationship;
A parameter display processing unit that performs a process of displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object;
An image generation system comprising: In any one of Claims 1 to 12,
The parameter display processing unit
When the plurality of second moving objects move in the object space, a parameter display object that visually indicates a change in the first parameter of each of the plurality of second moving objects is displayed on each of the second moving objects. An image generation system characterized by performing a process of displaying in association with each other. In any one of Claims 1 thru | or 13.
An image generation system, wherein the first parameter of the second moving object is a pressure parameter that virtually represents a degree of pressure applied to the second moving object. A program for generating an image,
A movement processing unit for performing a process of moving the first and second moving objects in the object space;
An image generator that generates an image that can be seen from a given viewpoint in the object space;
A parameter processing unit that performs a process of changing the value of the first parameter of the second moving object when it is determined that the first moving object and the second moving object are in an approaching relationship;
A behavior change processing unit that generates a behavior change event that changes the behavior of the second moving object when it is determined that the value of the first parameter of the second moving object has reached a threshold;
As a parameter display processing unit that performs processing for displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object,
A program characterized by causing a computer to function. In claim 15,
The parameter processing unit
A program characterized in that when the time difference between the first and second moving objects becomes smaller than a given set time difference, it is determined that the first and second moving objects are in an approaching relationship. In claim 16,
The parameter processing unit
When the first moving object is located within a given distance range that increases as the speed of the second moving object increases, the time difference between the first and second moving objects is greater than the given set time difference. A program characterized by judging that it has become smaller. In claim 17,
The parameter processing unit
The first moving object is located within a given distance range that increases as the speed of the second moving object increases, and the ratio of the speed of the first moving object to the speed of the second moving object is given A program for changing the value of the first parameter of the second moving object when the ratio is equal to or greater than the set ratio. In any of claims 16 to 18,
The parameter processing unit
A program that changes the value of the first parameter of the second moving object at a larger change rate as the time difference between the first and second moving objects becomes smaller. In any of claims 16 to 19,
The parameter processing unit
When the time difference between the first and second moving objects is smaller than the intermediate setting time difference which is smaller than the given setting time difference, the value of the first parameter of the second moving object is set as a threshold. When the time difference between the first and second moving objects is greater than the intermediate set time difference and less than the given set time difference, the first moving object first A program characterized by changing a parameter value only to an intermediate value smaller than a threshold value. In any one of claims 15 to 20,
The parameter processing unit
When the first moving object is located outside the first and second distance ranges set in front of and behind the second moving object, the second moving object changed due to the close relationship. When the first moving object is located in the first distance range set in front of the second moving object, the value of the first parameter is reset or decreased. A program characterized by making non-changeable. Any one of claims 15 to 21
The parameter processing unit
When the first moving object is located in the third distance range set behind the second moving object, the distance between the first and second moving objects in the direction orthogonal to the traveling direction increases. A program for changing a value of a first parameter of a second moving object at a large change rate. In any of claims 15 to 22,
A program characterized in that, when a plurality of second moving objects move in an object space, at least one of a threshold value and a change rate of the first parameter is set for each second moving object. In claim 23,
In accordance with the relative relationship between the first moving object and each of the plurality of second moving objects, at least one of a threshold value and a change rate of the first parameter of each second moving object is set. A program characterized by that. In claim 23 or 24,
The parameter display processing unit
The length of the parameter display object displayed in association with each of the second moving objects is increased as the threshold value of the first parameter set for each of the second moving objects is increased. program. A program for generating an image,
A movement processing unit for performing a process of moving the first and second moving objects in the object space;
An image generator that generates an image that can be seen from a given viewpoint in the object space;
A parameter processing unit that performs a process of changing the value of the first parameter of the second moving object when it is determined that the first moving object and the second moving object are in an approaching relationship;
As a parameter display processing unit that performs processing for displaying a parameter display object that visually indicates a change in the value of the first parameter of the second moving object,
A program characterized by causing a computer to function. In any of claims 15 to 26,
The parameter display processing unit
When the plurality of second moving objects move in the object space, a parameter display object that visually indicates a change in the first parameter of each of the plurality of second moving objects is displayed on each of the second moving objects. A program characterized by performing processing to display in association with. A device according to any one of claims 15 to 27.
A program characterized in that the first parameter of the second moving object is a pressure parameter that virtually represents the degree of pressure applied to the second moving object.   A computer-readable information storage medium, wherein the program according to any one of claims 15 to 28 is stored.

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