JP2000014926A - Image display control method and game device applying the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display method enabling high speed processing that can cope with a fighting game by increasing the speed of stage state processing and to provide a game device using the same. SOLUTION: A stage displayed on a display device is divided into a plurality of predetermined units and a database given a code for identifying a corresponding structural body for display is stored in each unit. From the code identifying the structural body of the database, a structural body corresponding to a position where a character displayed is present is determined and the travel distance of the character is calculated on the basis of a function corresponding to the structural body calculated. The display of the character is renewed for each frame in accordance with the calculated travel distance of the character.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an image display control method and a game apparatus to which the method is applied. In particular, the present invention relates to an image display control method for displaying the movement of a character on the stage together with the stage when displaying the moving stage.

[0002]

2. Description of the Related Art Heretofore, in an image display device such as a game device, which converts an object or a character having virtual three-dimensional space coordinates into a two-dimensional coordinate and displays an image on a monitor, for example, on a rotating stage or the like When displaying the character to be placed, move the background image,
It is as if the entire stage is moving. Alternatively, when displaying a state in which a stage such as an elevator changes up and down, display control is performed by changing the height of the stage and adjusting the display position of the character to the stage height. On the other hand, in response to faster image processing devices and lower prices of memories, game devices are also required to display more complex images to display more realistic images. However, in response to such a request,
For example, in a large field, that is, in a three-dimensional space having a stage, when there are a plurality of different moving directions depending on the position of the stage, it is difficult to reproduce the information by the above-described conventional display method. In particular, it is difficult to apply the present invention to a game device that requires high-speed character display processing such as a fighting game.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an image display method which solves the above-mentioned conventional problems, and a game apparatus using the same. further,
SUMMARY OF THE INVENTION An object of the present invention is to provide an image display method that speeds up stage state processing and enables high-speed processing that can support a fighting game, and a game apparatus using the same. Another object of the present invention is to provide an image display method that enables programming without being conscious of the state of the stage, and a game device using the same.

[0004]

According to the present invention, a stage to be displayed on a display device is divided into a plurality of units in predetermined units, and each stage is provided with a corresponding unit. Stores a database with a code identifying the displayed structure. The structure corresponding to the position where the character to be displayed exists is obtained from the code for identifying the structure of the database, and the amount of movement of the character is calculated based on the parameter corresponding to the obtained structure. The display of the character is updated for each frame based on the moving amount of the character.

As a more specific mode, the angle of the character is calculated based on the parameters corresponding to the obtained structure, and the display of the character is updated for each frame based on the calculated movement amount and angle of the character.

Further, as one aspect, the display of the character is updated for each frame based on the calculated movement amount of the character, and the display of the structure is performed based on the parameters corresponding to the obtained structure. To update.

[0007] In one aspect, the parameter wave is a function corresponding to the structure.

[0008] Further objects and features of the present invention will become apparent from the following description of embodiments.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar components will be described with the same reference numerals or reference symbols.

FIG. 1 is a block diagram showing a configuration example of a game apparatus to which the present invention is applied. A game program to be executed is stored in a large-capacity memory 1 such as a CD-ROM. The game program includes stage data and polygon data for displaying a character displayed on the stage.

When the game device is started, a main CPU 2 as a control means reads out a game program such as a battle game from the large-capacity memory 1 and controls its execution. Further, necessary polygon data is read from the large-capacity memory 1 by the main CPU 2 and transferred to the view conversion circuit 4.

The main memory 3 temporarily stores a battle game program read from the large-capacity memory 1, polygon data, and a stage data table described later. Therefore, in the process of control, the main CPU 2 accesses the main memory 3 and proceeds with the process.

The view conversion circuit 4 converts polygon data having three-dimensional local coordinate data transferred from the main CPU 2 into a world coordinate system, and further performs coordinate conversion into a viewpoint coordinate system having a viewpoint as an origin. Furthermore, by projecting a polygon onto a two-dimensional plane in the viewpoint coordinate system,
Convert to two-dimensional coordinate data. The buffer memory 5 buffers data in the calculation process for such coordinate conversion.

The polygon data converted into two-dimensional coordinates is input to the rendering processing circuit 6. A Z buffer memory and a texture memory 7 are connected to the rendering processing circuit 6. The polygon data has a depth in the Z-axis direction, that is, a size in a depth direction of a two-dimensional plane,
For an opaque polygon, display of a polygon having a small depth in the Z-axis direction is effective.

The texture memory stores texture data. The polygon data has an address of a texture memory for reading a texture to be attached to each polygon from the texture memory.

Therefore, the rendering processing circuit 6
Based on the depth data in the Z-axis direction of the polygon data output from the view conversion circuit 4 and the texture memory address, the polygon is validated, the texture data is pasted, and written into the video RAM 8 as image data.

Each of the video RAMs 8 has a capacity of one frame and is composed of a pair of frame memories. When one frame memory is in a state of writing image data,
The other frame memory is in a state of reading image data.

The image data read from the video RAM 8 is converted into an analog video signal on a monitor 9 and the image is displayed on a monitor screen.

According to the present invention, in the configuration of the above-described game apparatus, in execution of the game program controlled by the main CPU 2, the present invention is characterized in that data of a stage on which a character is placed is retained and the character is moved and displayed.

FIG. 2 is a conceptual diagram showing an example of a game scene displayed on the game apparatus shown in FIG. 1 according to the present invention. The display screen 10 shows the escalator 11 and the merry-go-round 12 rotating in the arrow direction 13. Then, the character who is a warrior in the battle game moves on the escalator 11 or
I move on the merry-go-round 12. Alternatively, it may be present on a flat ground other than the escalator 11 and the merry-go-round 12.

The stage area of such a game scene is continuous. For example, in a three-dimensional virtual space, the size of all stages has a size of 400 m × 300 m.
Then, the size of all stages is set to 0.5 m square and a database corresponding to a code corresponding to the state of the stage is prepared. Such a database
Attached to the game program, it is stored in the memory 1.

FIG. 3 is an operation flowchart according to the present invention. When displaying an image of a stage as shown in FIG.
First, the stage database is read from the main memory 3 by the CPU 2 (step S1). Next, the number of the structure data corresponding to the location of the character A to be displayed is determined (step S2).

That is, FIG. 4 shows 3.0 as a 6 × 5 unit for facilitating understanding of the database.
It is a figure which assumes a size of mx2.5m as a stage and shows it. FIG. 5 is a diagram showing a table in which the database of FIG. 4 is represented by X coordinates and Z coordinates, and the table is composed of 30 pieces of data.

4 and 5, a code 00 corresponding to the state of the stage indicates a level ground, 01 indicates an escalator,
02 indicates a merry-go-round. Therefore, as shown in FIG. 4, the character A is (1.8 m,
(0.6 m), the coordinates (ux, uz) where the character A exists in unit units are as follows.

Ux = int (1.8 m / 0.5 m) = 3 uz = int (0.6 m / 0.5 m) = 1 (int is rounded down to the nearest whole number.) Further, FIG. Assuming that the coordinates of the unit at the upper left position are (0, 0), it can be understood that the character A exists at the unit coordinates (3, 1). 02), it can also be understood that it is on the merry-go-round 12.

Returning to FIG. 3, in the determination processing in step S2, the number of the structural data corresponding to the place where the character A is located from the database is uz * (the number of units in the x direction of the stage). + Ux.

That is, taking the character A as an example, ux = 3, uz = 1 from the above calculation, and the number of units in the x direction = 3.0 m / 0.5 m = 6, so that 1 * 6 + 3
It can be seen that it corresponds to the ninth structure data.

It can be understood that the ninth structure data may be used even if the database is not an x, z coordinate table but arranged in a straight line.

Next, in the operation flow of FIG. 3, the moving distance and angle of the character are calculated based on the parameters or functions corresponding to the obtained structure data (step S3).

Such parameters or functions are defined corresponding to the code of the structure at the position where the character A exists. The movement display of the structure and the movement display of the character are controlled by these parameters or functions.

Assume that the escalator 11 shown in FIG. 2 is a structure having a character. The code is 01
Where the coordinates of the character A at the timing of execution of the program are (x, y, z) and the direction is Ang.
Then, the function of the escalator 11 is as follows: SpdX = constant (movement in the X direction of the escalator) SpdY = constant (movement in the Y direction of the escalator) SpdZ = constant (movement in the Z direction of the escalator) Represents the movement of the character standing on the. At this time, the coordinates (X, Y, Z) change as follows.

X = X + SpdX Y = Y + SpdYZ Z = Z + SpdZ Therefore, the escalator 1 which is a structure for each frame
1 is the size of the constants (SpdX, SpdY, SpdZ) and is updated every frame as shown in FIG. In FIG. 6, ΔX is Spdx, and ΔY is Spdy.

The coordinate position of the character A is updated accordingly. Thereby, the character A is displayed as if it moves on the escalator 11.

The merry-go-round 12 shown in FIG.
Is a structure with a character, its code is 02. As a function corresponding to code 02,
The movement of the character standing on the "disk rotating at the angular velocity Rspd (constant) around the point (ox, oz)" is shown. FIG. 7 is a diagram for explaining this. * Mx + mz * mz) (distance between the center and the character), x
The change amounts in the direction and the y direction are respectively SpdX = dis * cos (Ang + Rspd) -di
s * cos (Ang) SpdZ = dis * sin (Ang + Rspd) -di
Since s * sin (Ang), the coordinates of the character are calculated by X =
X + SpdX, Z = Z + SpdZ.

Also, the direction of the character is Ang = An
Updated by g + Rspd. Thereby, the direction of the character corresponding to the surface of the merry-go-round 12 becomes constant.

The above description relates to the movement of the character and the control of the orientation corresponding to the structure in which the character exists. By moving the structure itself in accordance with the function of the corresponding structure, It is possible to display an image as if the character moves on a structure that moves, that is, on a stage.

Here, the movement control of the character according to the present invention is processed only by the "coordinates where the character is present" irrespective of the input by operating the input lever of the game device or the motion of the character. If the control according to the present invention is executed between the input processing by the input lever operation and the display of the image of the corresponding character, the two characters are different from each other in a stage like a martial arts game. Even when placed in a state, programming is possible without being aware of the state of the stage.

[0038]

As described above with reference to the drawings, the present invention makes it possible to easily display an image in which a part of the stage moves like an escalator or a merry-go-round. Further, according to the present invention, since the state of the stage is stored in a database in advance, high-speed processing is possible.

Further, even when two characters are placed in different stage states as in a fighting game, programming can be performed without being aware of the stage state.

Furthermore, in reality, it is possible to make a player feel as if the stage is moving by merely moving the character and the background object, that is, the structure, and to give a strong impact. Execution of the game program can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a game device to which the present invention is applied.

FIG. 2 is a conceptual diagram showing an example of a game scene displayed as an image in the game device of FIG. 1 according to the present invention.

FIG. 3 is an operation flow diagram according to the present invention.

FIG. 4 is a diagram supposing a size of 3.0mx2.5m as a stage as a 6x5 unit for easy understanding of a database.

5 is a diagram showing a table in which the database of FIG. 4 is represented by X coordinates and Z coordinates, and the table is composed of 30 pieces of data.

FIG. 6 shows that the escalator 11 has constants (SpdX, Spd
FIG. 9 is a diagram for explaining that the size is updated for each frame with a size of (Y, SpdZ).

FIG. 7 shows an angular velocity Rspd about a point (ox, oz).
It is a figure explaining the movement of the character standing on the disk which is rotating by (constant).

[Explanation of symbols]

 1 Large-capacity memory 2 Main CPU 3 Main memory 4 View conversion circuit 5 Buffer memory 6 Rendering processing circuit 7 Z buffer / texture memory 8 Video RAM 9 Monitor

Claims (12)

[Claims] 1. A stage displayed on a display device is divided into a plurality of units in predetermined units.
A database to which a code for identifying a corresponding displayed structure is added is stored. From the code for identifying the structure of the database, a structure corresponding to a position where a displayed character is present is obtained. An image display control method, comprising: calculating a movement amount of a character based on a parameter corresponding to a structure; and updating a character display for each frame based on the calculated movement amount of the character. 2. The character display device according to claim 1, further comprising calculating a character angle based on a parameter corresponding to the obtained structure, and displaying the character for each frame based on the calculated movement amount and angle of the character. Updating the image display. 3. The display according to claim 1, wherein the display of the character is updated for each frame based on the calculated amount of movement of the character, and the display of the structure is displayed based on a parameter corresponding to the obtained structure. An image display control method characterized by updating. 4. The image display control method according to claim 1, wherein the parameter corresponding to the structure is a predetermined function. 5. A stage displayed on a display device is divided into a plurality of units in a predetermined unit.
A memory for storing a database provided with a code for identifying a corresponding structure to be displayed, and control means for controlling execution of a game program stored in the memory, wherein the control means A structure corresponding to the position where the displayed character is located is obtained from a code for identifying the structure of the database stored in the memory, and a movement amount of the character is calculated based on a parameter corresponding to the obtained structure. A game apparatus characterized in that the display of a character is updated and controlled for each frame based on the calculated movement amount of the character. 6. The apparatus according to claim 5, wherein the control means calculates an angle of the character based on a parameter corresponding to the obtained structure.
A game apparatus, wherein the display of a character is updated and controlled for each frame based on the calculated movement amount and angle of the character. 7. The apparatus according to claim 5, wherein the control means updates the display of the character for each frame based on the calculated movement amount of the character, and based on a parameter corresponding to the obtained structure. A game device for controlling updating of a display of a structure. 8. The game device according to claim 5, wherein the parameter corresponding to the structure is a predetermined function. 9. A stage displayed on a display device is divided into a plurality of units in a predetermined unit.
A database provided with a code for identifying a corresponding structure to be displayed, and a storage medium storing a game program, wherein the game program is displayed from a code for identifying the structure of the database by executing the game program. A structure corresponding to the position where the character exists is calculated, a movement amount of the character is calculated based on the parameters corresponding to the obtained structure, and the calculated movement amount of the character is used for each frame based on the calculated movement amount of the character. A recording medium storing a game program characterized by updating a display. 10. The method according to claim 9, further comprising calculating an angle of the character based on a parameter corresponding to the obtained structure, and displaying the character for each frame based on the calculated movement amount and angle of the character. A storage medium storing a game program characterized by updating a game program. 11. The display device according to claim 9, wherein the display of the character is updated for each frame based on the calculated moving amount of the character, and the display of the structure is displayed based on the parameter corresponding to the obtained structure. A recording medium storing a game program to be updated. 12. The game device according to claim 9, wherein the parameter corresponding to the structure is a predetermined function.