WO2010016189A1

WO2010016189A1 - Game program and game device

Info

Publication number: WO2010016189A1
Application number: PCT/JP2009/003292
Authority: WO
Inventors: 関口貴弘
Original assignee: 株式会社セガ
Priority date: 2008-08-08
Filing date: 2009-07-14
Publication date: 2010-02-11
Also published as: JP2010035978A

Abstract

It is possible to reduce a computational load while ensuring the reality of output sound. Simultaneously with display of a game screen, four types of sounds (S1 to S4) corresponding to an object-corresponding position (CP) are multiply reproduced. Correspondingly to the object-corresponding position (CP), for example, the level of the sound (S1) smoothly increases from zero, going beyond the peak, and once falls to zero. Again, the sound level smoothly reaches the peak, and then returns to zero. The changes of the levels of the sounds (S2 to S4) are also respectively set correspondingly to the object-corresponding position (CP). The sounds (S1 to S4 and the like) include environmental sounds such as background music, water sound, voices of creatures, and wind sound.

Description

GAME PROGRAM AND GAME DEVICE

The present invention relates to a game program and a game apparatus for outputting sound according to movement of an object in a virtual space.

Regarding sound output for a game, Patent Document 1 discloses a three-dimensional sound system that sequentially calculates the distance and direction between each polygon center of an object and a sound source and outputs sound according to the distance and direction. .

On the other hand, Patent Document 2 discloses a game apparatus that sequentially calculates the distance between a sound source and a listening position and outputs sound having frequency characteristics corresponding to the distance.

Japanese Patent Laid-Open No. 08-149600 (Japanese Patent No. 3654369) Japanese Patent Laying-Open No. 2005-046270 (Japanese Patent No. 3740518)

In order to execute the sound output according to Patent Document 2, it is necessary to frequently calculate the distance between the sound source and the object, and the calculation load is heavy. Furthermore, the sound output of Patent Document 1 requires calculation of the direction, and the calculation load is even greater. *

The present invention was devised to solve such conventional problems, and aims to reduce the computational load while ensuring the reality of the output sound.

A game program according to the present invention is a game program for a game device including a moving operation means, an acoustic storage means, an acoustic reproduction means, and a control means, and generates the virtual space for the control means. A virtual space generating means, and an object generating means for generating an object in the virtual space, and further causing the control means to move the object in the virtual space based on an input of the moving operation means. The acoustic information stored in the acoustic information storage means is read out in correspondence with the position of the object in the virtual space, and the acoustic information is input to the acoustic reproduction means.

This can reduce the computation load while ensuring the reality of the output sound.

The present invention is a game apparatus comprising a movement operation means, a storage means, a sound reproduction means, and a control means, wherein the control means includes a virtual space generation means for generating a virtual space, and an inside of the virtual space The object generation means for generating the object, the standard path generation means for generating the movement standard path of the object, and the position on the movement standard path (referred to as the object corresponding position) corresponding to the position of the object. An object corresponding position calculating means, and the control means moves the object substantially along the movement standard path in the virtual space based on the input of the moving operation means, and corresponds to the object corresponding position. Then, the sound control information and / or sound information stored in the storage means is read out, and the sound controlled by the sound control information To input the broadcast to the sound reproducing means.

In the game program and the game device according to the present invention, the virtual space is divided into a plurality of areas, for example, and the acoustic control information and / or the acoustic information is set for each area. This facilitates setting the effect for each area.

In the game program and game device according to the present invention, a movement standard path of the object is generated, a position on the movement standard path (referred to as an object corresponding position) corresponding to the position of the object is calculated, and The acoustic control information and / or acoustic information stored in the storage unit may be read in correspondence with the object corresponding position, and the acoustic information controlled by the acoustic control information may be input to the acoustic reproduction unit.

This makes it possible to perform sound settings with a very small calculation load in a game in which a moving standard route is set.

In the game program and the game device according to the present invention, the sound control information may include volume information, and the output volume of the sound reproduction means may be controlled based on the volume information corresponding to the object corresponding position. . As a result, in the game in which the moving standard route is set, the acoustic adjustment based on the distance to the sound source can be realized with a very small calculation load.

In the game program according to the present invention, the acoustic information includes, for example, background music information.

According to the present invention, the calculation load can be reduced while ensuring the reality of the output sound.

It is a front view which shows the Example of the game device which concerns on this invention. It is a block diagram which shows the game device of FIG. It is a figure which shows the movement path | route of a player character in the game performed with the game device of FIG. It is a figure which shows the game screen displayed with the game device of FIG. It is a figure which shows the other game screen displayed with the game device of FIG. It is a graph which shows the example of the acoustic information for the game performed with the game device of FIG. It is a figure which shows a corresponding position calculation method. It is a table | surface which shows the example of the sound volume information. It is a flowchart which shows the process of Example 1 of the game program which concerns on this invention. FIG. 10 is a flowchart illustrating object corresponding position calculation processing in FIG. 9. FIG. It is a top view which shows the virtual space in Example 2 of the game program which concerns on this invention, and a game device. It is a flowchart which shows the process of Example 2 of the game program which concerns on this invention.

Next, embodiments of the game program and the game apparatus according to the present invention will be described with reference to the drawings.

[Game device]
FIG. 1 is a front view showing an embodiment of a game apparatus according to the present invention, and FIG. 2 is a block diagram showing the game apparatus of FIG.

In FIG. 1, a controller 2100 is connected to the game device 2000, and a display device such as a TV monitor 2200 and a keyboard 2300 are connected to the game device 2000.

The display device 2200 has a player character object CH that operates in response to an operation from the player, an object movement path (course) CR, a life gauge LG that indicates the remaining power of the object, and an image that shows a state in the virtual three-dimensional space. Is displayed, and the object CH is moved by the controller 2100. The moving path (course) CR of the object in FIG. 1 may not be displayed along the traveling direction of the object CH. In addition, this movement route (course) CR is located at the approximate center in the width direction of the area where the object CH can travel, and acoustic information to be described later may be determined based on this position.

2, the game apparatus 2000 includes a CPU 1000 that controls the whole, a boot ROM 1010 that stores a program for starting the game apparatus 2000, and a system memory 1020 that stores programs and data executed by the CPU 1000.

The game apparatus 2000 is provided with a video processor 1030 that generates and controls an image to be displayed, and a graphic memory 1040 that stores an image that is a source of the generated image and a generated image. The displayed image is displayed on the display device 2200.

The game apparatus 2000 is provided with an audio processor (sound reproduction means) 1070 for reproducing sound and an audio memory (storage means) 1080 for storing sound information of sound data to be reproduced and sound control information for controlling the sound information. The audio processor 1070 generates a sound digital signal based on the sound information and sound control information stored in the audio memory 1080, and outputs sound by a sound output device 2210 such as a speaker or headphones.

The acoustic information may be single sound data set to flow in a fixed place in the virtual space, or sound data set to flow in a loop. The sound control information is a program that can bring about effect effects on sound volume information and sound information. Examples of effect effects on acoustic information include those that can provide an echo effect and those that intentionally distort sound. By combining these, various sound expressions can be achieved even with a small amount of sound data.

Note that the sound volume information referred to here means the sound output from the audio processor 1070, which is set by a program, and the sound volume actually played is the setting of the speaker or the headphones (sound output device 2210) itself. Played at the set volume.

The game device 2000 is provided with a CD-ROM drive 1090 or the like as a storage device for program data and the like, and the game program and data stored in the storage medium in the storage device are read into the system memory 1020, the graphic memory 1040, and the audio memory 1080. It is.

The game device 2000 is provided with a memory interface 1130, and can read and write to the memory cards A and B held by the player. Thereby, it is possible to register the game results of each player, the state of the game finished halfway, and the like.

The game apparatus 2000 is provided with a modem 1150 via a communication interface 1160, and can execute a network game by a plurality of game apparatuses 2000 via a network. Various information related to the game such as the ranking of the game and various events can be acquired.

The game apparatus 2000 is provided with a controller interface 1140, and the controller 2100 is connected to terminals 1 to 4 of the controller interface 1140.

Next, the moving path of the player character (object) CH, the game screen, and the playback sound in the game executed on the game device 2000 will be described.

3 is a diagram showing a moving path of the player character in the game executed on the game device of FIG. 1, FIG. 4 is a diagram showing a game screen displayed on the game device of FIG. 1, and FIG. FIG. 6 is a graph showing an example of acoustic control information for a game executed by the game apparatus of FIG. 1, and FIG. 7 is a diagram showing a corresponding position calculation method. FIG. 8 and FIG. 8 are tables showing examples of sound volume control information.

3, the movement path CR is formed in the virtual space SP, and the player character CH can move freely within a range that does not deviate from the course CR. Further, although the movement route CR is described as a series in FIG. 3 as a single road, the movement route CR may be interrupted in a range in which the player character CH can move in the actual virtual space. Moreover, a branch point may be provided in the middle of the movement route CR, and the movement route CR may be divided into a plurality of portions. Further, the player may be able to freely select the traveling direction with respect to the branch of the movement route CR, or the movement route based on the determination that the player character CH has acquired an object arranged as an item on the movement route CR. You may branch by satisfying various conditions, such as branching CR.

In the course CR, a movement standard route CR1 indicating a standard movement route of the player character CH is set.

The player can operate the controller 2100 to move the player character CH forward and backward, for example, along the course CR, and move the player character CH in the width direction of the course CR and the vertical direction of the virtual space SP.

In the movement standard route CR1, an object corresponding position CP corresponding to the coordinate position CH (X, Y, Z) in the virtual space SP of the player character CH is determined.

4 and 5, a game screen is generated and displayed on the display device 2200 in response to a change in the object corresponding position CP accompanying the movement of the player character CH.

As shown in FIG. 5, two person objects OB1, OB2 and other objects other than the player character CH are displayed on the game screen. The player character CH When the player character CH comes into contact with the target object, the remaining power of the life gauge LG indicating the remaining power of the player character CH may be changed. In addition, various other effects can be set.

Furthermore, as shown in FIG. 6, simultaneously with the display of the game screen, one or more sound data corresponding to the object corresponding position CP is reproduced as sound.

FIG. 6 schematically shows a combination of the sounds S1 to S4 controlled by the four types of sound control information. For example, corresponding to the object corresponding position CP, the sound S1 smoothly increases in volume from the volume 0, and after exceeding the peak, the volume once becomes 0, smoothly reaches the volume peak again, and then returns to the volume 0. For the sounds S2 to S4, the volume change is set individually corresponding to the object corresponding position CP.

Sounds S1 to S4 and the like include background music, water sounds, living sounds, wind sounds, and other environmental sounds. By combining and reproducing the plurality of sound data managed by each of these, it becomes possible to express not only background music but also the sound of the surrounding environment of the player character CH in the virtual space, which is more realistic. Sound can be provided to the player, and for example, the volume of the waterfall flowing can be increased as the player character CH approaches the waterfall flowing in the virtual space.

[Calculation of object correspondence position]
The object corresponding position CP is, for example, a point on the moving standard route CR1 that is closest to the coordinate position CH (X, Y, Z) of the player character CH. However, the movement standard route CR1 is generally set to a curved line or a complicated broken line, and it may not be easy to find the shortest distance point with respect to any position CH on the movement standard route CR1.

When the calculation of the object corresponding position CP is not easy, in order to simplify the calculation, for example, a plurality of course reference coordinates KF0 to KFn are set on the standard movement route CR1, and each course reference coordinate from the start position KF0 is set in advance. A path length bdist to KFi is calculated, and a distance ndist from KFi to CP is calculated on a line segment connecting adjacent course reference coordinates KFi and KFi + 1. The object corresponding position CP is specified by the path length posld = bdist + ndist measured along the standard movement path CR1 from the first course reference coordinate KF0.

Here, an example of an approximate CP calculation method is shown.

For example, as shown in FIG. 7, when the position CH (X, Y, Z) exists between the course reference coordinates KFi, KFi + 1, the following parameters are defined.
vp0: vector from the position CH to the course reference coordinate KFi vp1: vector from the KFi + 1 to KFi vp2: vector from the KFi + 1 to the CH

The following parameters are set here.
bdist: path length from the course reference coordinate KF0 to the course reference coordinate KFi ndist: path length from the course reference coordinate KFi to CP poslt: path length from the course reference coordinate KF0 to the corresponding position CP c: perpendicular to the course reference coordinate KFi Distance to foot CF θ: Angle formed by vector vp0 and vector vp1

If the vector vp0 + vp2 is a good approximation of vp1, the norm | vp0 | can be regarded as ndist. That is,
ndist = | vp0 | Formula (1)
It is.

Judgment whether the vector vp0 + vp2 is a good approximation of vp1 is executed as follows, for example.

For example, when the inner product of the vectors vp0 and vp1 is negative or the square of the vector vp1 is negative (referred to as condition 1), it is determined as a good approximation, and the norm of vp0 is regarded as ndist. Alternatively, when the inner product of the vectors vp1 and vp2 is negative (referred to as condition 2), it is determined as a good approximation, and the norm of vp2 is regarded as ndist.

Further, when the vector vp0 + vp2 is not a good approximation of vp1, for example, as shown in FIG. 7, a vertical line is dropped from the position CH to the vector vp1, and the distance from KFi to the vertical leg CF is regarded as the path length ndist. , The corresponding position CP (bdist + ndist) is calculated.
At this time, the distance c is calculated as follows.
ndist = | vp0 | × cos θ Formula (2)
cos θ = {| vp0 | 2+ | vp1 | 2- | vp2 | 2}
/ {2 | vp2 | · | vp1 |} Equation (3)

As shown in FIG. 8, the volume information vol for the sounds S1 to S4 is set for each digital value of posld and stored in the audio memory 1080, and the calculated path length posld is a digital value posld (j ), Posld (j + 1) (value (posldt)) (formula (4)), the volume at posld (j), posld (j + 1) is vol (posld (j)), vol (posld). (J + 1)), the volume vol (posldt) is calculated by the interpolation calculation of the equation (5).
posld (j) <posldt <posld (j + 1) Equation (4)
vol (posldt) = vol (posld (j))
+ {Vol (posld (j + 1))-vol (posld (j))}
× {posldt-posld (j)}
/ {Posld (j + 1) -posld (j)} (5)

Course CR can be divided into a plurality of areas, and each area may be changed to a stage with different scenes and situations set. The boundary of each area is set by course reference coordinates KF0 to KFn, for example.

As described above, the object corresponding position CP is set based on the object position CH, and the acoustic control information is set based on the path length of the object corresponding position CP or its approximate value. Therefore, the calculation load for sound reproduction is small. . Furthermore, since the sound volume is set along the moving direction of the object CH, it is easy to set a smooth sound change, and an unnatural sound change at an area boundary can be prevented.

Also, it is possible to determine the sound volume based on the ratio at each distance. In this case, the volume can be actually obtained by multiplying the maximum value of each platform by the ratio according to the ratio. Also, when omitting the calculation of each frame, a stage table that does not presuppose interpolation is generated in advance at the initialization of each stage. It is also possible to use the values of the volume table as they are simply by performing a position search. Thus, it is possible to suppress the load by omitting the complementation when the volume change is not so much. In addition, it is possible to suppress the load by setting not to calculate between points when the set volume is 0.

In the above embodiment, the CPU 1000 and the system memory 1020 function as control means in cooperation.

Further, the CPU 1000, the system memory 1020, the video display processor 1030, and the graphic memory 1040 cooperate to function as a virtual space generation unit that generates the virtual space SP, and as an object generation unit that generates the object CH in the virtual space SP. Function.

Further, the CPU 1000, the system memory 1020, and the controller 2100 cooperate to function as a movement operation unit that moves the object CH substantially along the movement standard route CR1 in the virtual space SP.

Further, the CPU 1000 and the system memory 1020 cooperate to function as a standard route generation unit that generates the movement standard route CR1 of the object CH,
It functions as an object corresponding position calculation means for calculating the object corresponding position CP corresponding to the position CH (X, Y, Z) of the object CH.

[Game program]
A game program executed in the game device 2000 will be described.

FIG. 9 is a flowchart showing the process of the first embodiment of the game program according to the present invention, and FIG. 10 is a flowchart showing the object corresponding position calculation process in FIG.

In FIG. 9, the game program causes the control means to execute the following steps.

Step S1101: First, parameters such as bdist, posld, ndist, CH (X, Y, Z), vp0, vp1, vp2, and θ are initially set, and the process proceeds to step S1102.

Step S1102: It is determined whether or not a control signal for moving the character CH is input from the controller 2100. When the control signal is input, the process proceeds to step S1103. When the control signal is not input, the process jumps to step S1107.

Step S1103: The object CH is moved based on the control signal, and the process proceeds to step S1104.

Step S1104: The object corresponding position CP is calculated, and the process proceeds to step S1105.

Step S1105: A game image to be displayed is generated based on the position CH and the direction of the object CH, and the process proceeds to step S1106.

Step S1106: Based on the object corresponding position CP, the acoustic information is read from the audio memory 1080 and input to the audio processor 1070. As for the sound data input to the audio processor 1070, sound corresponding to the object corresponding position CP is reproduced from the sound output device 2210 via the display device 2200.

Step S1107: It is determined whether or not the object CH has reached the goal of the game. When the goal is reached, the process is terminated as it is, and when the goal is not reached, the process proceeds to step S1108.

Step S1108: It is determined whether or not the game should be terminated due to time out. When the game is to be ended, the processing is ended as it is, and when the time is not expired, the process returns to step S1102.

In FIG. 10, the game program causes the control means to execute the following steps when calculating the object corresponding position in step S1104.

Step S1201: It is determined whether or not the condition 1 is satisfied, that is, whether or not the inner product of the vectors vp0 and vp1 is negative or the square of the vector vp1 is negative. If condition 1 is satisfied, the process jumps to step S1205, and if condition 1 is not satisfied, the process proceeds to step S1202.

Step S1202: It is determined whether or not the condition 2 is satisfied, that is, whether or not the inner product of the vectors vp1 and vp2 is negative. If condition 2 is satisfied, the process jumps to step S1204. If condition 2 is not satisfied, the process proceeds to step S1203.

Step S1203: When the vector vp0 + vp2 is not a good approximation of vp1, as shown in FIG. 7, a vertical line is dropped from the position CH to the vector vp1, and from Equation (2) and (3), from KFi to the vertical foot CF Is calculated as a path length ndist. Thereby, the corresponding position CP (bdist + ndist) is calculated. Thereafter, the process ends.

Step S1204: The corresponding position CP is calculated as ndist = | vp2 |. Thereafter, the process ends.

Step S1205: The corresponding position CP is calculated as ndist = | vp0 |. Thereafter, the process ends.

In the first embodiment, the object corresponding position is defined by the path length for the character moving along the curved course, but the object corresponding position CP may be defined in a two-dimensional area.

FIG. 11 is a plan view showing a virtual space in the game program and game device according to the second embodiment of the present invention, and FIG. 12 is a flowchart showing the processing of the game program according to the second embodiment of the present invention.

As shown in FIG. 11, for example, a plurality of rectangular areas A1, A2, A3, A4, A5, A6, A7 by X coordinate (coordinate in the horizontal direction of the game image) and Z coordinate (coordinate in the depth direction of the game image). ,... Are sequentially connected to set the movement route CR of the character CH, the area A1 is the small areas A11 to A15, the area A2 is the small areas A21 to A22, the area A3 is the small areas A31 to A35, and the area A4. Are divided into small areas A41 to A44, area A5 is divided into small areas A51 to A53, area A6 is divided into small areas A61 to A64,. Each small area is a rectangle or a polygon composed only of sides parallel to the X axis or the Z axis.

That is, the areas A1, A2,... And the small areas A11, A12,... Are defined as plane figures along the XZ coordinates, and the areas A1, A2,. It is provided corresponding to.

The character CH moves so as not to deviate from the areas A1, A2,... By the operation of the controller 2100, and the small area (small area A42 in FIG. 11) is determined by the position CH (X, Z) of the character CH.

The sound data (acoustic information and acoustic control information) for the sounds S1 to S4 is set so as to change for each small area for each area, and the control means selects the small area corresponding to the position CH (X, Z). The object corresponding position CP is specified, and the corresponding sound data is read out. Note that the small area is specified only by evaluation of the X and Z coordinates, so the calculation load is small.

The area and the small area should not be a plane figure along the XZ coordinate, but a plane figure along the XY (game screen height direction) coordinate, or a plane figure along the YZ coordinate. Of course it is also possible.

The game program of the second embodiment is executed by the game device of FIGS. 1 and 2, and the game program causes the control means to execute the following steps (FIG. 12).

Steps S1401 to S1403: Processes similar to steps S1101 to S1103 in FIG. 9 are executed.

Step S1404: The object corresponding position CP (small area) corresponding to the position CH is calculated, and the process proceeds to step S1405.

Step S1405: Processing similar to that in step S1105 in FIG. 9 is executed, and the process proceeds to step S1406.

Step S1406: Based on the object corresponding position CP (small area), the acoustic control information is read from the audio memory 1080 and input to the audio processor 1070. Thereby, the sound corresponding to the object corresponding position CP is reproduced.

Steps S1407 and S1408: The same processing as steps S1107 and S1108 in FIG. 9 is executed.

Also, when the game program is executed by a general-purpose computer, program code for causing the computer to execute the game program is read from a storage medium or a communication medium into the system memory of the general-purpose computer.

The above embodiment has been described mainly for a game in which one object runs along a course, but it can be applied to any game in which one or more objects move in a virtual space. The present invention can be applied to various applications for moving an object, such as a flight simulator, an RPG game, and an action game.

CH object (player character)
CP object correspondence position CR movement route (course)
CR1 Standard travel route SP Virtual space LG Life gauge 1000 CPU
1010 BOOT ROM
1020 System Memory 1030 Video Display Processor 1040 Graphic Memory 1150 Modem 1160 Communication Interface 1070 Audio Processor 1080 Audio Memory 1090 CD-ROM Drive 1130 Memory Interface 1140 Control Interface 1190 Bus Arbiter 2000 Game Device 2100 Controller 2200 Display Device 2210 Sound Output Device 2300 Keyboard

Claims

A game program for a game device comprising a moving operation means, a storage means, a sound reproduction means, and a control means,
In the storage means,
Acoustic information,
Acoustic control information for controlling the acoustic information is stored,
The control means;
Virtual space generation means for generating a virtual space;
Object generating means for generating an object in the virtual space;
To function,
Furthermore, the control means includes
Based on the input of the movement operation means, the object is moved in the virtual space in the virtual space,
Corresponding to the position of the object in the virtual space, the acoustic control information stored in the storage unit is read, and the acoustic information controlled by the acoustic control information is input to the acoustic reproduction unit.
Game program.
The game program according to claim 1, wherein the virtual space is divided into a plurality of areas, and the acoustic information and / or the acoustic control information is set for each area.
The control means,
A standard route generating means for generating a moving standard route of the object;
An object corresponding position calculating means for calculating a position on the movement standard route corresponding to the position of the object (referred to as an object corresponding position);
To function,
Furthermore, the control means includes
Corresponding to the object corresponding position, the acoustic control information stored in the storage means is read, and the acoustic information controlled by the acoustic control information is input to the acoustic reproduction means.
The game program according to claim 1 or 2, characterized in that
The acoustic control information includes volume information,
In the control means,
Based on the volume information corresponding to the object corresponding position, the output volume of the sound reproduction means is controlled.
The game program according to claim 2 or 3, wherein
A game device comprising movement operation means, storage means, sound reproduction means, and control means,
The storage means
Acoustic information,
Storing acoustic control information for controlling acoustic information;
The control means includes
Virtual space generation means for generating a virtual space;
Object generating means for generating an object in the virtual space;
A standard route generating means for generating a moving standard route of the object;
An object corresponding position calculating means for calculating a position on the movement standard route corresponding to the position of the object (referred to as an object corresponding position);
Including
The control means includes
Based on the input of the moving operation means, the object is moved in the virtual space substantially along the moving standard route,
Corresponding to the object corresponding position, the acoustic control information stored in the storage unit is read, and the acoustic information controlled by the acoustic control information is input to the acoustic reproduction unit.
Game device.
The game apparatus according to claim 5, wherein the virtual space is divided into a plurality of areas, and the acoustic information and / or the acoustic control information is set for each area.
The control means further includes
A standard route generating means for generating a moving standard route of the object;
An object corresponding position calculating means for calculating a position on the movement standard route corresponding to the position of the object (referred to as an object corresponding position);
Including
Further, the control means includes
Corresponding to the object corresponding position, the acoustic control information stored in the storage unit is read, and the acoustic information controlled by the acoustic control information is input to the acoustic reproduction unit.
The game device according to claim 5, wherein the game device is a game device.
The acoustic control information includes volume information,
The control means includes
Based on the volume information corresponding to the object corresponding position, the output volume of the sound reproduction means is controlled.
The game device according to claim 7 or 8, wherein
A computer-readable storage medium storing a computer-executable program code of the game program according to claim 1.