JPH10216357A - Recording medium on which game program having game replay function is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely perform a replay according to an instruction signal at the time of performing a replay by providing a computer having a function of generating image data of an object displayed by conducting perspective conversion process and a function of controlling to display generated image data. SOLUTION: When a replay request is generated from an input device 5, CPU 3 selects and reads out a scene according to a player's select from an absolute coordinate, for example, 10 seconds of all of players concerning plural scenes stored in a storage device 7, works the same according to work information from the input device 5, and generates display data different from game progression. For example, a camera control means 10 selects camera angle data at the time of designated reproduction, selects character data 12 according to the above data to be transferred to a display screen generating means 9, and transfers the same from the display screen generating means 9 through VRAM 4 to display a shoot scene from a different view point on a CRT 2 screen by rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording medium recording a game program for displaying a moving object moving within a predetermined area on a display screen.

More specifically, the present invention displays an object moving in a predetermined area on a display screen in accordance with an operation signal of an operator and a predetermined game program, and displays the object under a reproduction condition designated according to a reproduction command. The present invention relates to a recording medium that stores a game program that enables the movement of a game to be reproduced and displayed on a screen.

[0003]

2. Description of the Related Art Various types of video games have been conventionally known. For example, sports games such as soccer games, hockey games, basketball games, tennis games, golf games, etc. are performed within a predetermined competition area. This is a game in which a player moves and manipulates and moves a ball (or puck) to determine a shot at a goal at a predetermined position, hit a ball into a court, or make a cup-in to compete to enjoy a score. Further, the fighting action game is a game in which a fighter moves in a predetermined fighting area and exchanges skills to enjoy winning and losing.

[0004] Some game machines for enjoying these sports games and fighting action games are provided with a save function and a replay function.

[0005] This save function is to store the data state at the time when the operator interrupts the game in the memory (R).
AM), so that when the game is restarted, the stored data is read out so that the game can be continuously executed.

[0006] The replay function stores data in the RAM while constantly updating data for a certain time during the progress of the game, so that a wonderful goal scene or a splendid technique is determined during the progress of the game. When a problem occurs, several scenes can be stored in another RAM by pausing appropriately according to preference.
This is a function that allows the user to select and reproduce a favorite name / rare scene from these scenes after the game is over.

[0007]

However, the replay screen by the replay function of the above-mentioned conventional game device merely displays the same size screen from the same viewpoint as the screen during the game in the same sequence. However, there was a problem that it was not possible to reproduce the name / rare scene from a different viewpoint than during the game. In addition, there is a problem that it is not possible to enlarge or reduce a scene to be viewed. Further, in the first place, with the conventional game device, the operator cannot freely change the viewpoint position itself of the game display during the progress of the game, and the display at a predetermined angle is simply prepared in a fixed manner. Was only being done.

In a conventional game device, the replay function is realized by storing a history of operation signals from a control pad operated by an operator during a game. Therefore, when a replay command is issued, the game device performs the same image processing as during the game while reading out the stored history of the operation signals, thereby reproducing the game scene. This is probably the simplest storage means.

For this reason, the reproduction scene cannot be reproduced in the reverse direction in the direction opposite to the progress of the game. That is, the operation signal from the control pad is selected and input according to the situation before the game, so if there is no information about the situation before the game, the operation signal from the control pad alone will make the game This is because they cannot be reproduced.

[0010] In the game device, display data is generated by calculating the position of an object to be displayed next according to an algorithm of a predetermined game program from an operation signal from a control pad and a situation before the game. And displayed on the monitor. Therefore, depending on the method of the arithmetic processing, it may not be possible to perform fast-forward or slow-motion reproduction. Further, in some cases, it is not possible to perform playback while moving the viewpoint of the display screen (corresponding to the viewpoint of the camera), or to perform playback while further enlarging or reducing the screen such as zoom-up or widening.

Therefore, an object of the present invention is to provide a recording medium on which a game program that solves the above problem is recorded.

An object of the present invention is to provide a recording medium on which a game program is recorded in which a replay of a game can be freely performed in response to an instruction signal such as reverse reproduction, fast forward, and slow motion when replaying a game. It is in.

Another object of the present invention is to provide a game program capable of replaying a game while moving a viewpoint (camera viewpoint) of a display screen or zooming up or widening when replaying a game. An object of the present invention is to provide a recorded recording medium.

[0014]

The above problem is solved by the following constitution.

That is, in a recording medium storing a game program for causing a computer to realize a function of moving a predetermined object within a predetermined area in accordance with an operation input by an operator during the progress of the game, the program is set in the predetermined area. A function of storing the history of the absolute coordinates of the object in the absolute coordinate space in a memory, a function of reading the history of the absolute coordinates of the object stored in the memory in response to a replay instruction input from the operator, A computer realizes a function of generating image data of a displayed object by performing perspective transformation processing according to input information indicating a mode of replay and the read absolute coordinates, and a function of controlling display of the generated image data. To record a game program It is solved by a recording medium.

According to the present invention having the above-described structure, the absolute coordinates of a moving body that moves within a predetermined area in response to an operation of a player (operator) during a game are stored in a memory for a predetermined time in response to a storage request. It is memorized. In addition, the absolute coordinates are read from the memory in response to the replay request, and the absolute coordinates are converted into coordinates in the display space in accordance with the processing information from the input device, and further processed into data for a display screen. Different display data can be generated than in progress.
Therefore, in response to the replay request, the moving object is displayed on the display screen based on display data different from that during the progress of the game (for example, display data that has been rotated, enlarged, or reduced).

Further, the object of the present invention is to provide a recording medium storing a game program for realizing a function of causing a computer to move a predetermined object within a predetermined area in accordance with an operation input of an opter while the game is in progress, A function of obtaining absolute coordinates and motion data of a first object in an absolute coordinate space set in the predetermined area according to the operation input signal input by the operator with reference to a display screen during game progress;
Based on the absolute coordinates of the first object and the motion data, according to a predetermined algorithm of the game program,
A function for obtaining the absolute coordinates and motion data of the second object in the absolute coordinate space, a function for storing the history of the absolute coordinates and motion data of the first and second objects in a memory, and a replay instruction from the operator In response to the input information indicating the replay mode, the function of reading the absolute coordinates and the operation data of the first and second objects stored in the memory, and the input information indicating the replay mode and the read It has a function of performing perspective transformation processing according to absolute coordinates and motion data, generating image data of first and second objects to be displayed, and a function of controlling the generated image data to be displayed. This is achieved by providing a recording medium on which a game program to be recorded is recorded.

According to the above configuration, when a replay request is issued, the history of data on the movement locations and actions of the plurality of objects in the game in the absolute coordinate space has already been stored in the memory. By inputting the order of reading out the data, the viewpoint and the direction of the field of view, the enlargement or reduction, which are factors used in the arithmetic processing of the perspective change, as information on the replay mode from the operator, the game can be replayed in any mode. It can be carried out. In addition, since the data of the object generated during the game is used by the complicated calculation processing, there is no need to perform the calculation processing again at the time of replay. By doing, especially CPU
Any replay can be performed without imposing a burden on the player.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. However, the technical scope of the present invention is not limited to the embodiment.

[First Embodiment] Next, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a game apparatus 1 according to one embodiment of the present invention.
This is realized by the hardware configuration shown in FIG. 1 and 2
Are almost the same configuration diagrams, but FIG. 1 omits a part (21, 22, 25, 26, 27) of FIG. 2 for simplicity, and additionally displays 8, 9, and 14 which are not shown in FIG. doing.

Referring to FIG. 2, the game apparatus 1 shown in FIG. 2 shows an example of a soccer game.
The game apparatus 1 includes an input device 5 operated by a player (operator) to freely control the movement of a player (player) and kick a ball, and a C for displaying a screen.
RT2 and an output device 21 including a sound generator and a speaker for generating sound effects such as kicking a ball and cheering of a crowd.

Further, a CPU (Central Processing Unit) 3 and a VRAM
(Video random access memory) 4, color RAM 22, work RAM 23 for game calculation, R
OM (read only memory) 25 and oscillation circuit 26
And are connected. The VRAM 4 includes a character generator 41, a scroll memory 42, and a frame memory 43.
And generates one frame of image data.

That is, the character generator 41
Generates foreground image (non-scrolling player) data from character data stored in the ROM 25.
This player corresponds to the moving object. On the other hand, the scroll memory 42 has a CPU according to an input signal from the input device 5.
The scroll amount of the background image is calculated based on the instruction of No. 3, and the background image data to be scrolled is generated.

Each of these data is supplied to the frame memory 43, and the player who moves freely on the ground scroll-displayed on the CRT 2 in response to an input signal from the input device 5 is displayed on the CRT 2 along with the ground and background images including members of the opponent team. , So that a soccer game can be enjoyed.

The color RAM 22 adds color data to the frame image, so that the displayed image is colored. The CPU 3 performs the following processing based on the soccer game program stored in the ROM 25. It is preferable that the ROM 25 be a cartridge type that can be freely inserted and removed, or a CD (compact disk) -ROM in the case of a home device. That is, the game software is configured to be able to enjoy game software other than the soccer game. The oscillation circuit 26 generates a clock for synchronizing the entire device.

In the case of a business device (arcade machine), a coin I / O 27 is further provided on the data bus B.
When the coin I / O 27 is connected to S and detects that a predetermined amount of coins have been inserted, the game can be started according to a signal from the coin I / O 27.

Further, a partial area of the work RAM 23 is provided with an area for storing the absolute coordinates on the ground of each player who is playing the game for a predetermined time. Here, the absolute coordinates are not the coordinates of the display position of the player on the CRT screen, but the absolute coordinates of the polygon constituting the player in the area where the player moves. For example, 10 seconds of absolute coordinates of each player are constantly stored in the work RAM 23, and old data is updated as the game progresses.

The absolute coordinates for each player for 10 seconds are:
Backup RAM according to storage request from input device 5
24. The backup RAM 24 has a storage capacity enough to perform this transfer a plurality of times.

Returning now to FIG. 1, in FIG.
The same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 1, reference numeral 6 denotes data storage means corresponding to the work RAM 23, 7 denotes storage means corresponding to the backup RAM 24, and 8 denotes game control means for controlling the movement of the entire game. 9 is a display screen generating means, 1
Reference numeral 0 denotes camera control means, 11 denotes camera angle data at the time of reproduction, 12 denotes character data, and 13 denotes an enlargement / reduction processing unit. The above-mentioned display data generating means 14 is composed of the camera control means 10, the camera angle data at the time of reproduction 11, the character data 12, and the scaling processing section 13.

3 is a CPU, and FIG. 3 is a flowchart showing the control by the CPU 3. Hereinafter, FIGS. 2 and 3
It will be described based on.

First, in step S31, the progress of the game is controlled by the game control means 8. The absolute coordinates on the ground of each player (moving body) during the progress of the game are stored in the data storage means 6 at any time in the subsequent step S32.
And the absolute coordinates for a predetermined time (for example, 10 seconds) are stored in the data storage means 6, and old data is updated.

When the absolute coordinates for the predetermined time are accumulated, it is determined in step S33 whether a storage request has been made from the input device 5. The storage request is issued by operating the input device 5 when the player wants to store a name shot scene or the like. If it is determined that there is no storage request (No), the process returns to step S31 and the game is continued.

On the other hand, if it is determined that a storage request has been made (Yes), the absolute coordinates of all the players stored in the data storage means 6 for 10 seconds are transferred to the storage means 7 and stored.

In step S35, it is determined whether the game is over. The game is not over (No)
Returns to step S31, and returns to step S31.
To S35 are repeatedly executed. That is, if the storage request is made a plurality of times, a plurality of 10-second absolute coordinates in a plurality of scenes are stored in the storage means 7.

If it is determined in step S35 that the game has ended (Yes), it is determined in subsequent step S36 whether a reproduction request (replay request) has been received from the input device 5. The reproduction request is issued by operating the input device 5 when the player wants to reproduce (replay) the name shot scene or the like stored by the player and watch it. If it is determined that there is no reproduction request (No), all the processing ends.

On the other hand, if it is determined that there is a reproduction request (replay request) (Yes), in step S37, the absolute coordinates of all the players for a plurality of scenes stored in the storage means 7 for 10 seconds. From, CPU3
Select a scene according to the player's selection and read it out from the storage means 7.

The read absolute coordinates are stored in the following step S
At 38, display data different from that during the game is generated by being processed according to the processing information from the input device 5. For example, when the player arbitrarily operates the input device 5 while viewing the replay display screen, display data for rotation display, enlargement or reduction display is generated.

Here, the rotation display will be described. In the character data 12, a plurality of character data of each character (player; player) viewed from each direction are prepared in advance. Then, the camera control means 10 selects predetermined reproduction-time camera angle data 11 in accordance with the processing information from the input device 5, selects character data 12 corresponding to the camera angle data 11, and displays the display screen generation means 9. Transfer to At this time, the direction of the character data 12 selected according to the operation of the input device 5 changes as needed. That is, the viewpoint of the camera moves.

Therefore, in step S39, the character data is transferred from the display screen generating means 9 to the CRT 2 via the VRAM 4, so that the name shoot scene from the viewpoint different from that during the game is rotated on the CRT 2 screen. Will be displayed.

When one scene is reproduced and displayed by the process in step S39, it is determined in next step S40 whether or not the reproduction is to be ended. When ending (Yes), all the processes are ended. On the other hand, if the process is not to be ended (No), the process returns to the step S37 and the processes of the steps S37 to S40 are repeatedly executed.

At this time, when the player operates the input device 5 so as to enlarge or reduce the display in step S38, dots are inserted evenly in the enlarged display, and the dots are uniformly omitted in the reduced display. In this case, the distance between the camera and the character (player) can be made different from that during the game, so that the magnification of the player can be arbitrarily set. The enlargement / reduction display method is not limited to insertion or omission of dots.

As described above, according to the present embodiment, the famous scenes and unusual scenes of the game are stored, and after the game is over, the rotated display, the enlarged display, and the reduced display are reproduced from a viewpoint different from the viewpoint during the progress of the game. You can enjoy the game many times and double the fun of the game.

[Second Embodiment] Next, a second embodiment of the present invention will be described.

In the second embodiment, a description will be given of a soccer game as an example. However, the present embodiment is not limited to such a soccer game, but can be applied to various kinds of games.

[Outline of Second Embodiment] In the game device of the second embodiment, an operator inputs an operation signal input from a control pad with reference to the direction of the display screen while watching the display screen in progress of the game. In response, the movement of the player (player) and the ball in the soccer game is calculated according to an algorithm in a predetermined game program, thereby determining the position of the player and the ball to be displayed next and the type of picture pattern. . In such a calculation process, by translating an operation signal from the control pad based on the state of the game being displayed, in the absolute coordinate space during the game,
An operation is performed to determine to which position the 22 players and one ball should be moved, and in which direction (movement data).

Here, the absolute coordinates are not coordinates in a space corresponding to the display screen, but are coordinates arbitrarily set in a region where an object such as a player moves. A fixed coordinate system independent of direction.

The operator operates through the control pad by one or two of the 22 players (when there are two operators). This directly operated player is the first object. Then, one ball is operated through the operated player.
Therefore, the game device performs an arithmetic process in accordance with the algorithm of a predetermined game program according to the movement of the ball, thereby determining the movement position of the remaining players (21 or 20 players) and the type of picture pattern to be displayed. The operation data will be determined. Such calculation processing is also performed in the absolute coordinate space during the game. These indirectly operated players are the second objects.

Based on the position of the object of the player or the ball in the absolute coordinate space and the type of the picture pattern obtained in this way, this time, the perspective transformation of each object is performed in accordance with the viewpoint information of the display screen. Operation processing is performed.
Here, the information on the viewpoint on the display screen includes, for example, the position and direction of the camera being relayed. That is, the direction of the viewpoint and the field of view. Further, in the perspective transformation, zoom and wide information (enlargement and reduction information) of the camera are also used. Here, perspective transformation refers to two-dimensional data in which three-dimensional data in which each object exists at various positions in the absolute coordinate space in various forms is determined according to the position and direction of the camera, zoom, and wide. It means that it is converted as two-dimensional data on the display screen.

Therefore, to describe in more detail, the perspective transformation includes a transformation from the absolute coordinate space to a display space based on viewpoint information (mainly a direction transformation), and a transformation from three-dimensional data in the display space to a display screen. Into two-dimensional data.

Information such as the position and direction of the camera, zoom, and wide are input from the control pad by the game operator.

In the second embodiment, the position (coordinate) of an object in the absolute coordinate space and the type of picture pattern (operation data) obtained as a result of the arithmetic processing are always stored in the memory. Then, when a replay command is input from the operator, arithmetic processing for drawing a display image from data accumulated in the memory is performed, and display image data in pixel units is written and stored in the memory of the frame buffer.
Then, the image data is reproduced on the monitor.

At the same time as the replay command, the operator also inputs a replay mode command as to what replay (reverse feed, fast forward, slow motion, etc.) is to be performed, and at what camera angle. According to the instruction of the replay mode, the above-described perspective transformation calculation is performed to create display image data.

The above is the outline of the second embodiment. Hereinafter, this will be described in more detail with reference to the drawings.

[Structure of Game Apparatus] FIG. 4 is a schematic block diagram of the game apparatus of the present embodiment.

In the figure, reference numeral 50 denotes a main CPU which performs image processing and the like according to a game program. Main CP
U50 is provided with a work memory during arithmetic processing, a storage of data obtained as a result of the arithmetic operation, a random access memory 54 for storing external game programs, image data of objects, etc. Program to be executed (IPL, Initial
It is connected to a read-only memory 56 for accumulating Program Load. Further, a system manager and peripheral control device 58 for controlling reset management of the entire system and an interface with an external device such as the control pad 60 is also connected to the CPU bus 52. 62 is an interface circuit.

Reference numeral 64 denotes a system control unit (SCU) which has a role of a coprocessor of the CPU 50, controls the buses 52 and 66, and further has a built-in direct memory access (DMA) controller. During the operation of the main CPU 50, the character data of the object is stored in the image memory (VRAM) 7.
Transfer to 8.

This system controller unit 6
4, a first image display processor (VDP1) 68 and a second image display processor (VDP1)
2) 70, audio processor 72, monitor 74, CDR
An OM (compact disk ROM) 76 is connected. 73 is an encoder, and 75 is an interface for CDROM. When the game device is a home game device, the monitor 74 is externally attached to the game device,
The medium of the ROM 76 is installed in the CD drive of the game device.

The first image display processor 68 is a processor for controlling objects such as players and balls moving in a soccer field. The image processing command and the character data of the object accompanying the image processing are written from the main CPU 50. A memory 78 is connected to two frame buffers 80 and 82 that store image data to be displayed in pixel units. Further, the second image display processor 70 is a processor for controlling display of a background screen, and is connected to an image memory 84 and a color memory 86 for storing color information. Reference numeral 88 denotes a pair of speakers, which are externally attached in the case of a home game device.

The CDROM 76 stores a soccer game program, character data of objects such as players and balls in the game, and necessary image data such as a field and a soccer goal. The data is sequentially loaded into the memory 54.

[Absolute Coordinates] Next, the absolute coordinates in the second embodiment will be described. FIG. 5 is a perspective view of a soccer field for describing absolute coordinates.

Now, it is assumed that a soccer field is provided extending in the east-west direction, and both goals are provided on both sides of the east-west. In such a soccer field, the center O is defined as the origin of the absolute coordinates. Then, from the center O, the X axis extends in the east direction and the Y axis extends in the south direction.
It is defined that there is a Z axis in a direction extending directly above the axis.

A space composed of the XYZ coordinates defined in this way is defined as an absolute coordinate space.

Therefore, in the present embodiment, the game proceeds in this absolute coordinate space. Main CP
The calculation of the image processing in U50 is also performed based on this absolute coordinate space.

The meaning of defining the absolute coordinates is as follows. When the soccer field is viewed from the viewpoint of the camera 90 in FIG. 5, the right side is the east side and the X axis is in the plus direction, and the left side is the west side and the X axis is the minus direction in the camera angle. Further, the far direction is the minus direction of the Y axis, and the position becomes closer when the Y axis changes from 0 to the plus direction. On the other hand, when the soccer field is viewed from the viewpoint of the camera 91, the right side is the west side and the direction of the X axis is minus, and the left side is the east side and the plus side of the X axis within the camera angle. Furthermore, if you capture the soccer field from the camera 93 on the east side,
In the camera angle, the right side is the north side and the minus direction of the Y axis, and the left side is the south side and the plus direction of the Y axis.

Therefore, first, it is necessary to translate the operation signal input by the operator in the direction in the absolute coordinate space with reference to the space corresponding to the display screen.

Second, based on the calculation result of the image data obtained in the absolute coordinate space, the position and the direction in the display screen are converted to the position and the direction of the viewpoint, which is the position of the camera. Must be done. Since the position and direction of the camera are specified by an instruction signal input by the operator from the control panel, the image data in the absolute coordinate space is converted into the coordinate space in the camera angle, that is, in the display screen, accordingly. It is necessary.
While the operator's instruction input regarding the position and direction of the camera is changed each time, the absolute coordinate space is always fixed, and the arithmetic processing relating to the progress of the game is performed in this absolute coordinate space. .

[Image Processing Flow] FIG. 6 is a flowchart of the image processing of the game apparatus of the present embodiment.

The outline of the image processing flow will be described with reference to the block diagram of FIG. 4 and the flowchart of FIG.

First, the operator performs a key input from the control pad (step 100). The operator
While looking at the display image on the monitor where the game is progressing, the control pad gives an instruction on the direction of the player's movement and what kind of movement (standing, running, kicking, etc.). In accordance with the instruction input, the main CPU 50
Performs an arithmetic process in the absolute coordinate axis of the object for one player (step 102). Specifically, calculation of the absolute coordinates of the object (step 103)
And the determination of the type, direction, and pattern number of the motion of the object as motion data (step 104). Details will be described later. This one player is a player operated by the operator, and becomes two players when operated by two operators.

Since the soccer ball object also moves in accordance with the movement of this one player, the calculation is also performed in step 102.

Next, the movement of the object of another player is calculated by the main CPU 50 according to the position information of the ball that has moved in the soccer field. This calculation is performed according to an algorithm of a predetermined game program. For example, a player who is near the ball position moves while approaching the ball while maintaining a predetermined formation, and a player who moves away from the ball moves while moving within the range where the formation is maintained. This process
Due to the large number of objects, the main CPU
It puts a burden on 50.

As will be described later in detail, the arithmetic processing 105 determines the absolute coordinates (position) of other players (objects) operated by the CPU, and their directions and pattern numbers (steps 106 and 107). The data of the object in the absolute coordinate space obtained as described above is stored in the memory 54 by the main CPU 50. The object data obtained for each screen (frame) is sequentially stored in an area in the memory 54. The replay memory area has, for example, a capacity such that a frame corresponding to several seconds is stored. It has become. The address to be written is generated by adding the value of the head address of the memory area to the value from the ring counter. In this way, the memory area for replay always stores data for the latest several seconds. If 60 frames are displayed per second,
For example, to allow 8 seconds of replay, 480
A memory capacity enough to store the data of the object for the frame is secured in the random access memory 54 (step 108).

Next, based on the absolute coordinate value of the object (player or ball) in the absolute coordinate space, the type of motion, the direction, the pattern number, etc. According to the operation signal of the replay mode for the position and the direction, the calculation of the perspective transformation is performed (step 109). That is, it is an operation for converting three-dimensional data in the absolute coordinate space into two-dimensional data in the display screen.

As will be described in detail later, the method comprises a step 110 for again determining the direction and pattern number of the object so as to be adapted to the display screen, and a step 111 for performing a perspective transformation of the object on the display screen.

In accordance with the image data obtained in this manner, the image data in pixel units is converted by the first image display processor 68 into one of the frame buffers 80 and 8.
2 (step 112). Here, the pair of frame buffers 80 and 82 are provided because while the image data is being written into one frame buffer, the image data in the other frame buffer is read out and the monitor 74 is read. This is for the purpose of reproduction. By doing so, it is possible to realize very complicated and time-consuming processing and writing of image data without affecting the game progress.

The calculation 109 of the perspective transformation based on the camera information described above is also performed by the main CPU 50. However, commands and character data according to the calculation result are written into the image memory 78 by the main CPU 50 via the system control unit 64. Then, the first image display processor 68 calculates the command and the character data in the designated order, so that the image data in units of pixels is written into the frame buffers 80 and 82.

For the background image other than the object, similarly, necessary commands and data are written by the main CPU 50 to the image memory 84 via the system control unit 64. In accordance with those commands, the second image display processor 70 generates a background image in pixel units.

Finally, the second image display processor 70 combines (merges) the object image data (pixel unit) and the background image data in the frame buffer according to a predetermined priority. , Monitor 74
To be displayed.

The above is the description of the game apparatus of this embodiment.
It is an outline of an image processing flow.

[Data Structure of Object] Next, objects such as players and balls will be described more specifically.

FIG. 7 is a table for explaining the data structure of an object for a player. Object data includes absolute coordinates within the absolute coordinate axis, motion number, direction,
It consists of a pattern number and the like. As shown in FIG. 7, for example, the operation number 1 is a “kick” operation. This kicking operation has an attribute about the direction and an attribute of each series of pattern numbers. The attribute for the direction is, for example, 8
Consists of three directions, east, southeast, south, southwest, west, northwest, north, and northeast. Of course, directions such as upward, diagonally upward, horizontal, and diagonally downward may be added to this. Then, in the eastward direction of direction number 1, eight character patterns that are performing an eastward kicking operation belong. If these eight patterns are replaced every three frames, the kicking operation will be drawn in 24 frames (24/64 seconds).

Similarly, for the “running” operation of the operation number 2, there are eight patterns directed in eight directions. The operation number 3 is a “stand” operation. In addition, necessary patterns such as a sliding operation and a heading operation are prepared in advance according to the design of the program.

Next, FIG. 8 is a diagram for explaining the absolute coordinates of the data structure of the object.

In the object of this embodiment, eight character patterns are prepared in advance for one operation in one direction. FIG. 8 shows, as an example, a fifth pattern in the east direction of the kicking operation. In this pattern, the point A at the lower center is defined as the origin. Then, the coordinate value (x, y, z) of the origin A in the absolute coordinate space is the absolute coordinate of this pattern.

Therefore, if the data of the absolute coordinates, the operation number, the direction number and the pattern number are defined, the object can be defined in the absolute coordinate space.

FIG. 9 shows a modification as object data. In this example, a certain object is composed of a set of polygons of a head, both hands, both feet, and a body. Also in this example, the origin A of the object has (x0, y0, z0) as the absolute coordinates. Further, each polygon has relative coordinates (x1, y1, z1) from the origin A, (x2,
y2, z2). . . . (X6, y6, z6).

Therefore, when an object is composed of a set of polygons, the data of the object is composed of absolute coordinates, types of polygons to be composed, and relative coordinates from the absolute coordinates of those polygons. By increasing the number of polygons, a more realistic object can be reproduced. Further, if a rotation angle around each axis is further added to the relative coordinates as the position information of the polygon, the drawing can be performed in more detail.

However, if the configuration data of each object is increased in such a manner, on the contrary, the image processing itself becomes complicated and may not be suitable for a low-cost home video game machine.
On the other hand, in the case of an arcade type game machine, a more realistic image is required, and in that case, it can be said that it is suitable.

In any case, the data of the object is composed of its absolute coordinates and additional attribute data which is motion data.

[Calculation of Image Data] Next, referring to the block diagram of FIG. 4 and an example of a display screen, regarding the calculation in the absolute coordinate space of the player (object) operated by the oplator, which is step 102 in FIG. I will explain it.

FIG. 10 is a diagram showing the movement of a player and a ball as objects on the display screen. In this example,
In a state where the player P1 dominating the ball BL is standing (FIG. 10 (1)), the player P1 receives an operation signal from the operator.
1 starts running to the right (FIG. 10 (2)), and the player P
1 shows a state where it is running to the right while dominating the ball BL (FIG. 10 (3)).

For example, suppose that the operator operates the direction lever button on the control panel while the player P1 in FIG. 10A is standing on the ball BL side. The main CPU 50 recognizes such an operation signal, and determines that it is instructed to run toward the right side of the screen based on the current standing state of the player. Young
Assuming that the position of the viewpoint (camera position) is at the position 90 in FIG. 5, the display screen has the same direction as the absolute coordinates.
The main CPU 50 recognizes an operation signal indicating that the vehicle runs east in the absolute coordinate space.

Then, the main CPU 50 calculates the operation number of running, the direction number of eastward, and the running pattern number from the standing pattern by calculation, and further changes the value of the absolute coordinates in the absolute coordinate space. Then, the data (the absolute coordinates and the operation data) of the objects in the absolute coordinate space are stored in the memory 54. This stored information is used for replay when a replay command is issued later.

Next, the main CPU 50 performs conversion into the coordinate space for the display screen according to the input information of the replay mode such as the camera position and direction from the operator. In the above example, since the camera position is at the position 90 in FIG. 5, the direction and coordinates are the same as those in the absolute coordinate space.

When the above operation is performed, the main CP
From U50, a command and a character pattern necessary for drawing the corresponding object are written into the image memory (VRAM) of the first image display processor 68.

Then, the first image display processor 68
Writes a running pattern in the frame buffer 80 or 82 in pixel units according to a command or the like written in the image memory 78. As a result, the image of FIG. 10B is reproduced on the monitor.

FIG. 10C shows the running operation of the next frame, which is calculated and reproduced in the same manner as described above.

Here, if the camera position is on the opposite side as shown at 91 in FIG. 5, the running direction of the player P1 is on the left side, and that direction (the direction corresponding to the west side in the absolute coordinate space).
Will be selected. as a result,
As shown in FIGS. 11 (1), (2), and (3), the display screen is an image that is horizontally inverted from that of FIG.

FIG. 12 is a diagram showing a case where the player P1 kicks the ball BL.

As shown in FIG. 10, when the operator presses the operation button corresponding to the "kicking" operation from the control panel while the player P1 is running east in the absolute coordinate space, the main CPU 50 Recognize that you are kicking toward. Then, a kicking pattern in the east direction of the kicking operation is obtained by calculation. The obtained data of the object in the absolute coordinate space is stored in the memory 54 for replay as described above.

Further, perspective transformation is performed based on data such as the camera position and direction. If the camera position is not changed at the position of 90 in FIG. 5, FIG. 12 (1), (2),
It is reproduced on the display screen as shown in (3).

The above is the image processing for the player and the ball operated by the operator. Next, image processing for another player (21 or 20 players) operated by the CPU will be described.

FIG. 13 is a diagram for explaining players and balls operated by the CPU. Now, FIG.
In (3), it is assumed that the ball BL is kicked east. Ball B determined by main CPU 50
In accordance with the information on the absolute coordinate position of L, the main CPU 50 calculates the motions of the other 21 players under the algorithm of the predetermined game program.

According to FIG. 13A, the outline of the calculation algorithm is understood. That is, it is assumed that the ball BL has moved to the point X in the figure. Then, the players P2 and P3 near the position of the moved ball move so as to approach the ball BL. On the other hand, other players far away from the ball BL move within a range where the predetermined formation is not broken. In the figure, the star is the defensive side, but in this example, 4,
Players P4 and P5 moving in front of the goal while maintaining formations of 2, 4 and players P6 and P7 returning to the goal
It is shown. The triangle indicates the attacking side, but in addition to the player P1 operated by the operator, the player P8
-P11 is moving toward the goal on the east side.

As described above, when the movements of the other athletes are obtained from the algorithm of the program, the same processing as that of the athlete P1 operated by the operator is performed on the respective athlete objects. Then, data of those objects in the absolute coordinate space, the absolute coordinates, the motion, the direction, the motion pattern, and the like are stored in the memory 54.

Then, perspective transformation is performed according to the input information on the camera position and direction. Then, the data is written to the frame buffer. After that, the data of the frame buffer and the data of the background image (scroll image) are combined (merged) by the second image display processor 70 according to a predetermined priority algorithm, and displayed on the monitor 74. FIG. 13 (2) shows the player P
2, a state in which P3 moves toward the ball BL in the running motion is displayed.

[Operation for Perspective Transformation] Next, the main CP
Calculation processing of perspective transformation performed by U50 (Step 10 in FIG. 6)
9) will be described.

FIGS. 14 and 15 are views for explaining perspective transformation.

Now, it is assumed that the player performs the operation of "Keing", and in the east direction, the keeping pattern 5 is derived as a result of the calculation in the absolute coordinate space. In this case, FIG. 14 shows the perspective transformation when the camera position is on the south side, and FIG. 15 shows the perspective transformation when the camera position is on the east side.

In the case of FIG. 14, the camera is located on the south side, and its direction is toward the north side. Therefore, in the perspective transformation, the coordinates and directions in the absolute coordinate space are not changed. Then, the character pattern 120 of the kicking pattern 5 at the position of the coordinates (x, y, z) is projected as a see-through pattern 124 on a display screen 122 determined by a predetermined angle and distance from the camera 90 as a viewpoint.

The specific operation is, for example, the pattern 120
The origin A and its vertical and horizontal widths YB, YA, etc. are calculated based on the viewpoint 126 and the display screen 122 by calculating the similarity of the position and size of the projection.

If the camera 90 has the same position and direction but is wider (reduced), the display screen looks like 128 shown by a broken line, and the calculation is performed based on it.

Now, a case will be described in which a player in the same situation, that is, in the absolute coordinate space, the camera position is on the east side with respect to the pattern 5 to be cut in the east direction by the action of "cut". FIG. 15 illustrates this.

The various data recognized in the absolute coordinate space are converted into data adapted to the display screen by performing various calculations based on the information that the camera 93 is facing west from the east. You. First, the direction corresponding to the coordinate axes (XD, YD, ZD) corresponding to the display screen is calculated. That is, although the east side is the plus side of the X axis in the absolute coordinate space, the direction toward the camera, that is, the plus side of the YD axis is the direction from the camera 93 in FIG. Therefore, the pattern 5 in the direction 3 on the south side in the data configuration shown in FIG. 7 is adopted as the pattern 5 to be cut. The pattern 5 to be made is a picture that the player can go to the front.

Thus, based on the direction information,
Once the pattern number has been defined, this time, from the viewpoint 130 of the camera 93, the display screen 132 determined by the direction, wide and zoom, and the coordinates and size of the origin A of the character pattern 134 of the pattern 5 to be changed, etc. , And the projection pattern 136 are calculated.

[Replay Function] Next, while the game is in progress,
An operation when a replay instruction signal is input from the operator will be described.

FIG. 16 is a flowchart showing a replay processing flow. FIG. 17 is a diagram schematically illustrating an area of the replay data in the memory 54. FIG. 18 is a diagram showing 7 frames of the image when the camera is replayed by changing the position of the camera to the north side in the reverse direction.

For convenience of explanation, FIG.
A case where the game progresses in the order indicated by 0, 12, and 13 will be described.

First, as shown in the flowchart of FIG. 16, in step 140, the operator inputs a replay instruction from the control pad, and inputs a replay type (reverse feed, slow motion, etc.) and camera information as a replay mode. Done.

Before the replay instruction is input, the main CPU 50 stores the absolute coordinates, the motion, the direction, and the pattern number for each object in the replay data storage area of the memory 54 for each frame.

FIG. 17 shows the outline. That is,
The frame 1 stores absolute coordinates: (x, y, z) operation: standing direction: direction pattern number: pattern as data of the player 1 operated by the operator. Similarly, data on the player P2, the ball, and the like is also stored.

The same data is stored in the frame 2 as well. For example, if data for 8 seconds is stored, a total of 48 frames is obtained as 60 frames / second.
Data for 0 frames is stored in this storage area.

In this storage area, for example, data is stored sequentially and cyclically at an address corresponding to the count value of the ring counter 144.

Now, as an aspect of replay, it is assumed that an input has been performed by the operator to instruct replay with the camera (position 91 in FIG. 5) placed on the north side in reverse playback.

Step 142 in the flowchart of FIG.
, The main CPU 50 reads the object data stored in the memory 54 in the absolute coordinate space in the reverse direction from the frame 480 in order.

Data from frame 480 is the main CP
When read by U, based on camera information (point of view, direction of view, magnification, etc. as a mode of replay)
Calculation of perspective transformation is performed. This calculation process is the same as the process at the time of normal game progress, and the flowchart shown in FIG. 16 is assigned the same number as the step number in FIG.

That is, the direction and pattern number of the object corresponding to the space of the display screen are determined again based on the camera information (step 110), and the character pattern of the determined pattern number is perspectively transformed on the display screen. (Step 111). When this calculation is completed, the main CPU 50 stores a command corresponding to the calculation result and necessary pattern data in the image memory 78 of the first image display processor (VDP1) 68 through the system control unit (SCU) 64. Write. Then, in accordance with the written command, the first image display processor converts the object into pixel-based image data and writes the image data to the frame buffers 80 and 82.

A second image display processor (VDP2) 70 for processing background image data, color data, and the like.
Thus, the synthesized image is displayed on the monitor 74 while the image data of the object in the frame buffer and the background image data are synthesized (merged) according to a predetermined priority algorithm.

FIGS. 18 (1) to (7) show the above-mentioned FIGS. 10 (1), (2), (3), FIGS. 12 (1), (2),
It is shown that the scenes of (3) and (2) in FIG. 13 (2) are replayed in the reverse feed and the left-right reversal (mirror image).

As described above, since the data in the absolute coordinate space is perspective-transformed in accordance with the camera information specified for each frame, for example, (1), (2), and (3) in FIG. (4) and (5) in FIG. 18 are displayed by the camera 93 on the east side, and finally (6) and (7) in FIG.
Is displayed by the camera 90 on the south side, so that it is possible to reproduce the image while rotating the camera from the north to the east and the south.

Further, if there is a replay instruction by slow motion, the data for each frame stored in the memory 54 is read twice, for example, twice and perspective-transformed, whereby the replay function can be realized.

Furthermore, if there is a replay instruction by fast-forwarding, the data for each frame stored in the memory 54 is read out, for example, only odd-numbered frames and perspective-transformed, thereby realizing such a replay function. .

The enlargement and reduction of the display screen can be easily realized by changing the factor of the magnification at the time of the perspective transformation. Moreover, it can be changed for each frame.

Therefore, for example, it is also possible to perform a dynamic (dynamic) replay while rotating the camera position in a reverse motion and in a slow motion while gradually expanding the camera position.

[0136]

As described above, according to the present invention, according to a replay request, rotation, enlargement,
Since the game scene is displayed on the display screen based on the display data that has been reduced, etc., the game's famous scenes and unusual scenes can be reproduced from a different viewpoint than when the game is in progress, and the game can be played many times It has the feature that it can be enjoyed and double the fun of the game.

According to the present invention, since image data in the absolute coordinate space which is not affected by the type of replay is stored, when a replay is requested, reverse feed, slow motion, fast forward, enlargement Replay can be performed in response to any type of replay, such as reduction, change of camera position (viewpoint), rotation of camera position, and the like, making the game more enjoyable.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention.

FIG. 2 is a block diagram of a first embodiment of the present invention.

FIG. 3 is a flowchart of the first embodiment of the present invention.

FIG. 4 is a schematic block diagram of a game device according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a soccer field for describing absolute coordinates.

FIG. 6 is a flowchart of image processing of the game device of the second embodiment.

FIG. 7 is a table illustrating a data structure of an object for a player.

FIG. 8 is a diagram for describing absolute coordinates of a data structure of an object.

FIG. 9 is a modification example as data of an object.

FIG. 10 is a diagram showing movement of a player and a ball as objects on a display screen.

11 is a diagram illustrating a case of FIG. 10 and a case of a horizontally inverted image.

FIG. 12 is a diagram illustrating a case where a player P1 kicks a ball BL.

FIG. 13 is a diagram illustrating a player and a ball operated by a CPU.

FIG. 14 is a diagram for explaining perspective transformation.

FIG. 15 is a diagram for explaining perspective transformation.

FIG. 16 is a flowchart showing a replay processing flow.

FIG. 17 is a diagram schematically illustrating an area of replay data.

FIG. 18 is a diagram showing 7 frames of an image when the camera is replayed by changing the position of the camera to the north side in the reverse feed.

[Explanation of symbols]

 54 memory 76 recording medium

Claims (13)

[Claims] 1. A recording medium storing a game program for causing a computer to realize a function of moving a predetermined object within a predetermined area in accordance with an operation input by an operator during a game, wherein the program is set in the predetermined area. A function of storing a history of the absolute coordinates of the object in the absolute coordinate space in a memory, a function of reading a history of the absolute coordinates of the object stored in the memory in response to a replay instruction input from an operator, A computer realizes a function of generating image data of an object to be displayed by performing perspective transformation processing in accordance with input information indicating a mode of replay and the read absolute coordinates, and a function of controlling display of the generated image data. Recording medium on which a game program for causing body. 2. The game program according to claim 2, wherein the input information indicating the mode of the replay includes viewpoint information of a replay display, and the perspective transformation is performed according to the viewpoint information. recoding media. 3. The recording medium according to claim 2, wherein the perspective transformation is performed by making viewpoint information during replay different from that during the game. 4. The storage medium according to claim 2, wherein said perspective transformation is performed while changing viewpoint information at the time of replay for each display screen. 5. The non-transitory computer-readable storage medium according to claim 4, wherein the viewpoint information includes at least the position of the viewpoint and the direction of the visual field, and performs the perspective transformation while changing the position of the viewpoint or the direction of the visual field. Recording medium on which is recorded. 6. The recording medium according to claim 1, wherein the reading of the history of the absolute coordinates of the object is performed in accordance with input information indicating a replay mode from an operator. 7. The game program according to claim 6, wherein the reading of the history of the absolute coordinates is performed in a reverse order to the progress of the game, thereby performing the reverse reproduction. recoding media. 8. The recording medium according to claim 6, wherein the reading of the history of the absolute coordinates is thinned out to perform fast-forward reproduction. 9. The recording medium according to claim 6, wherein the reading of the history of the absolute coordinates is performed repeatedly to perform slow motion reproduction. 10. An object according to claim 1, wherein a moving position of said object in an absolute coordinate space is calculated in accordance with an operation input signal input by an operator with reference to a display screen in progress of the game to obtain absolute coordinates. A recording medium for recording a game program for causing a computer to realize a function of storing the history of the absolute coordinates in a memory. 11. The method according to claim 1, wherein a moving position of the object in an absolute coordinate space is calculated in accordance with an operation input signal input by an operator with reference to a display screen in which a game is in progress to obtain absolute coordinates. Further, motion data in the absolute coordinate space of the object is obtained, the history of the absolute coordinates and the motion data is stored in a memory, and the history of the absolute coordinates and the motion data is stored in a memory in response to a replay instruction input by the operator. A recording medium for storing a game program, characterized by performing a perspective transformation process from the read absolute coordinates and motion data. 12. A game progress display on a recording medium storing a game program for causing a computer to realize a function of moving a predetermined object within a predetermined area in accordance with an operation input of an operator during the progress of the game. A function of obtaining absolute coordinates and motion data of the object in an absolute coordinate space set in the predetermined area according to the operation input signal input by the operator with reference to a screen; A function of storing a history in a memory, a function of reading the absolute coordinates and operation data of the object stored in the memory in response to a replay instruction from the operator and input information indicating a replay mode, Input information indicating a mode, the read absolute coordinates and operation data. A recording medium on which a game program for causing a computer to execute a function of generating image data of an object to be displayed by performing a perspective transformation process in accordance with data and a function of displaying the generated image data is displayed. 13. A recording medium storing a game program for causing a computer to realize a function of moving a predetermined object within a predetermined area in accordance with an operation input of an oplator during the progress of a game, wherein a display screen during the progress of the game is displayed. According to the operation input signal input by the operator as a reference, a function of obtaining absolute coordinates and motion data of a first object in an absolute coordinate space set in the predetermined area, and an absolute coordinate of the first object. Based on the operation data, according to a predetermined algorithm of the game program,
A function for obtaining absolute coordinates and motion data of the second object in the absolute coordinate space; a function for storing the history of the absolute coordinates and motion data of the first and second objects in a memory; and a replay instruction from the operator In response to the input information indicating the replay mode and the function of reading the absolute coordinates and the operation data of the first and second objects stored in the memory; and the input information indicating the replay mode and the read It has a function of performing a perspective transformation process according to the absolute coordinates and the operation data to generate image data of first and second objects to be displayed, and a function of controlling the generated image data to be displayed. A recording medium on which a game program to be recorded is recorded.