JPH10179932A - Display device of explosion pattern, its display method and mechane readable recording medium having computer program recorded therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device of an explosion pattern which enables reduction in processing burden on a computer. SOLUTION: When an enemy character 31 is judged to contact a bomb character 32, a model of the enemy character 31 is replaced with an explosion pattern polygon as one sheet of polygon 41 on which is stuck a texture 40 having an explosion image drawn thereon. The explosion pattern polygon is arranged facing the front on a screen. Thus, the explosion image viewed from the front is displayed as pseudo three-dimensional image in a virtual three-dimensional space displayed on a screen of a TV monitor at a position where the enemy character 31 exists.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an explosion pattern display device for displaying an explosion of a character in a virtual three-dimensional space as a pseudo three-dimensional image on a screen, a method of displaying the explosion pattern, and a machine readout recording a computer program. It relates to a possible recording medium.

[0002]

2. Description of the Related Art Conventionally, in a virtual three-dimensional game space displayed on a screen, a game player operates his own character such as a fighter or the like constituted three-dimensionally by polygons, and also three-dimensionally uses polygons. There is a video game machine that executes a video game called a so-called shooting game that destroys an enemy character such as a configured fighter. In this type of video game machine, when the game player presses a button on the controller, a state in which a bullet character such as a missile or a beam is fired from the own character is displayed, and when the bullet character contacts an enemy character, An explosion pattern is displayed instead of the enemy character and the bullet character. Also, this explosion pattern is generally formed three-dimensionally by polygons like the self character and the enemy character, and displayed on a screen.

[0003]

However, the explosion pattern did not play an important role in the progress of the game, and did not draw the attention of the game player. For this reason, even if the explosion pattern is displayed in a realistic expression form, it does not lead to a motivation to purchase a video game machine that executes a shooting game.

On the other hand, since the surface of the explosion pattern has a complicated shape, the polygon model of the explosion pattern has been composed of a solid having many vertices. For this reason, in order to move the explosion pattern displayed on the screen, the coordinates and position vectors of a large number of vertices must be obtained, which puts a unnecessary processing burden on the video game machine.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has an explosion pattern display device capable of displaying an explosion pattern on a screen by simpler processing than in the past and reducing the processing load on a computer. It is an object to provide a method and a machine-readable recording medium on which a computer program is recorded.

[0006]

The present invention employs the following configuration to solve the above-mentioned problems. That is, the invention according to claim 1 is an apparatus for displaying an explosion of a character generated in a virtual three-dimensional space on a screen as a pseudo three-dimensional image, wherein a position for specifying the arrangement position of the character in the virtual three-dimensional space is provided. Storage means for storing specific data; polygon data storage means for storing polygon data of an explosion pattern indicating the explosion of the character; and texture data storage for storing texture data in which an explosion image for the explosion pattern is drawn Means, determining means for determining the explosion of the character, and when the determining means determines the explosion of the character, a polygon is formed using polygon data of the explosion pattern and texture data on which the explosion image is drawn. Generate explosion pattern polygons with textures on which explosion images are drawn Setting means for arranging the explosion pattern polygon at an arrangement position of the character based on the position specifying data in a state where the texture on which the explosion image is drawn faces the front of the screen. .

According to the first aspect of the present invention, when the judging means judges that an explosion has occurred in the character displayed on the screen, the setting means sets an explosion pattern polygon at the position of the character. Since the drawn texture is arranged so as to face the front of the screen, an explosion image viewed from the front is displayed on the screen at the position of the character. Therefore, a realistic explosion pattern can be displayed on the screen even if the explosion pattern polygon has an incomplete three-dimensional shape composed of one to several small polygons.
Therefore, the amount of stored data and the amount of processed data can be reduced.

According to a second aspect of the present invention, the explosion pattern according to the first aspect is constituted by a single polygon, and the polygon has a front surface on which a texture on which the explosion image is drawn is pasted in a body coordinate system. Are stored in the polygon data storage means in a state where they are arranged so that they are specified.

According to the second aspect of the present invention, the storage data amount,
In addition, the amount of processing data can be extremely reduced. Further, the coordinate transformation of the screen coordinate system is simplified, and the processing load can be reduced.

A third aspect of the present invention is a method of displaying an explosion pattern for displaying an explosion of a character in a virtual three-dimensional space on a screen as a pseudo three-dimensional image, wherein the character is arranged in the virtual three-dimensional space. Reading position identification data for identifying a position, reading polygon data of an explosion pattern indicating the explosion of the character, reading texture data on which an explosion image for the explosion pattern is drawn, determining the explosion of the character, When the means determines that the character has exploded, an explosion pattern polygon having a texture on which an explosion image is drawn is attached to the polygon using the polygon data of the explosion pattern and the texture data on which the explosion image is drawn. Generate the explosion pattern polygon based on the position identification data. Serial depicted textures explosive image, characterized in that arranged in the arrangement position of the character in a state facing the front with respect to the screen.

According to a fourth aspect of the present invention, there is provided a machine-readable recording medium storing a computer program for causing a computer to execute a process of displaying a character explosion occurring in a virtual three-dimensional space on a screen as a pseudo three-dimensional image. Reading a position specifying data for specifying the position of the character in the virtual three-dimensional space; reading polygon data of an explosion pattern indicating the explosion of the character; Reading the texture data on which the character has been drawn, determining the explosion of the character, and when the determining means determines the character has exploded, the polygon data of the explosion pattern and the explosion image are drawn. Explosion images are drawn on polygons using texture data An explosion pattern polygon to which a texture is pasted is generated, and based on the position identification data, the explosion pattern polygon is placed in the state where the texture on which the explosion image is drawn faces the front of the screen. And a machine-readable recording medium that records a program for executing the steps of:

Here, the recording medium includes RAM, ROM,
CD-ROM, floppy disk, hard disk,
Or, a magneto-optical disk or the like is included.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating a video game machine including an explosion pattern display device according to the present embodiment. This video game machine includes an apparatus main body and a controller 21. Further, a CD-ROM 23 as a medium on which a game program (computer program) is recorded is mounted on the apparatus main body, and a television monitor 22 is connected to the apparatus main body.

The apparatus main body includes a CPU 1, a graphics data generation processor 3 directly connected to the CPU 1,
An interface circuit 4, a main memory 5, a ROM 6, a decompression circuit 7, a parallel port 8, a serial port 9, and a drawing processor 10, which are mutually connected to the CPU 1 via a bus (address bus, data bus and control bus) 2. , Audio processor 12, decoder 1
4, an interface circuit 19, a buffer 11 connected to the rendering processor 10, and a buffer 13 and an amplifier 17 connected to the audio processor 12.
, A speaker 18 connected to the amplifier circuit 17, a buffer 15 and a CD-ROM connected to the decoder 14.
It comprises a driver 16 and a memory 20 connected to an interface circuit 19. Controller 2 described above
1 is connected to the interface circuit 19. The above-described television monitor 22 is connected to the drawing processor 10.

Here, the graphics data generation processor 3 functions as a so-called coprocessor of the CPU 1. That is, the graphics data generation processor 3 performs coordinate transformation and light source calculation, for example, calculation of a matrix or vector in a fixed-point format by parallel processing.
The main processing executed by the graphics data generation processor 3 is a processing target based on coordinate data, movement amount data and rotation amount data of each vertex in a two-dimensional or three-dimensional plane of image data supplied from the CPU 1. The processing includes obtaining an address on the display area of the image and returning the address data to the CPU 1 again, and calculating the luminance of the image in accordance with the distance and angle from the virtually set light source.

The interface circuit 4 is an interface circuit for a peripheral device, for example, a pointing device such as a mouse or a trackball. ROM
Reference numeral 6 stores program data as an operation system of the apparatus main body. The main memory 5 is a CD
-A memory in which the game program from the ROM 23 is loaded. Programs and data are appropriately paged from the main memory 5 to the CPU 1 and processed by the CPU 1.

In the expansion circuit 7, MPEG (Moving Pictur)
e Engineering Group) and JPEG (Joint Pincture Engi)
A decompression process is performed on a compressed image that has been compressed by intra-coding conforming to the NNering Group. Decompression processing includes decoding processing (decoding of data encoded by VLC: Valid Length Code), inverse quantization processing, ID
These include CT (Inverse Discrete Cosine Transform) processing, intra-image restoration processing, and the like.

The drawing processor 10 performs drawing processing on the buffer 11 based on a drawing command issued by the CPU 1 and outputs an image drawn in the buffer 11 to the television monitor 22. The buffer 11
It consists of a display area and a non-display area. The display area is an area for developing data displayed on the display surface of the television monitor 22. The non-display area is an area for storing texture data, color pallet data, and the like. Here, the texture data is two-dimensional image data. The color pallet data is data for specifying a color such as texture data. The drawing command issued by the CPU 1 includes, for example, a drawing command for displaying a line, a drawing command for drawing a three-dimensional image using polygons, a drawing command for drawing a normal two-dimensional image, and the like. It is.

The audio processor 12 is a CD-ROM
PCM audio data read from
Convert to data. The ADPCM data processed by the audio processor 12 is output from the speaker 18 as audio.

The CD-ROM driver 16 is a CD-RO driver.
The data such as program data and map information and audio data are read from M23, and the read data is supplied to the decoder 14.

The decoder 14 has a CD-ROM driver 1
ECC (Error Correction)
(n Code), and supplies the error-corrected data to the main memory 5 or the audio processor 12.

The memory 20 is a card type memory,
In order to maintain the state at the time of the game interruption, various parameters at the time of the game interruption are stored. Controller 21
Is a cross key 21g integrating a left key, a right key, an up key, and a down key, a left button 21L and a right button 21R.
, Start button 21a, select button 21b
And first to fourth buttons 21c to 21f. The cross key 21g is a key for the game player to give commands indicating up, down, left, and right to the CPU 1. The start button 21a indicates that the game player
-A key for instructing the CPU 1 to start a game program loaded from the ROM 23. The select button 21 b allows the game player to make various selections regarding the game program loaded on the main memory 5.
These are keys for instructing the CPU 1.

In the above-mentioned CD-ROM 23, a fighter (own character) displayed in a virtual three-dimensional game space is operated by a game player, and fighters appearing in the game space are displayed.
A game program of a shooting game for destroying battleships and the like (enemy characters) and data used for executing the game program are recorded.

When the CD-ROM 23 is loaded into the apparatus main body and the power is turned on, the CPU 1 of the video game machine is turned on.
Reads the game programs and data from the CD-ROM 23 one after another and loads them into the main memory 5. When the CPU 1 executes the game program, a game title screen (not shown) is first displayed on the television monitor 22. In this state, when the start button 21b of the controller 21 is pressed, a title screen (not shown) displayed on the television monitor 22 is displayed.
Is switched to the game play screen. Thereby, the above-mentioned shooting game is executed.

FIG. 2 is a diagram showing a display example of a game play screen displayed on the television monitor 22 by executing the game program. In the display example shown in FIG. 2, a three-dimensional virtual game space is formed when viewed from a bird's eye (when photographed by a virtual camera C1 installed at a bird's eye position), and corresponds to the terrain of the game space. The sea surface 24 is displayed at the part where the image is displayed, and the sky 25 is displayed at the upper side of the screen with the horizontal line as a boundary. Above the sea surface 24 in the game space, a fighter (own character) 30 operable by a game player is three-dimensionally formed as an aggregate of a plurality of polygons, and is displayed in a pseudo three-dimensional manner. Also, on the sea surface 24 on the far side of the game space, a battleship that the game player should destroy by operating the player character 30
An enemy character (corresponding to a first character) 31 is three-dimensionally formed as an aggregate of a plurality of polygons and displayed in a pseudo three-dimensional manner. Then, a missile (a bullet character: corresponding to a second character) 32 fired from the own character 30 by the operation of the controller 21 is three-dimensionally configured as an aggregate of a plurality of polygons, and is displayed in a pseudo three-dimensional manner.

The own character 30 moves forward, backward, left and right in the game space when the cross button 21g of the controller 21 is pressed. The enemy character 31 is set to appear from the right side, left side, or upper side of the screen (for example, when the enemy character 31 is a fighter).
Further, the game space is set so as to be forcibly moved (scrolled) toward the near side of the screen, so that the own character 30 flies over a preset terrain (map). Is displayed as an animation.

When a missile launch button (for example, set to the first button 21c) of the controller 21 is pressed, a bullet character 32 is launched from the own character 30. The bullet character 32 lands on the sea surface 24 and then moves toward the far side of the game space. Thus, when the enemy character 31 and the bullet character 32 are simultaneously displayed on the screen, the enemy character 31 and the bullet character 3
2 is determined. When the distance between the enemy character 31 and the bullet character 32 in the game space is reduced to a predetermined value or less, a state in which the enemy character 31 and the bullet character 32 are in contact with each other is displayed on the screen. If it is determined that the character has hit the enemy character 31, an explosion pattern indicating an explosion of the enemy character 31 is displayed instead of the enemy character 31 and the bullet character 32.

Next, the game space shown in FIG. 2 will be described. FIG. 3 is an explanatory diagram of the game space. As shown in FIG. 3, the game space has a linear course 29 to which the own character 30 should advance, and a vertical cross-section rectangular shape having a map 34 set symmetrically with respect to the course 29 as a center line. It is set as the tunnel interior space. In the game space, the own character 30 is set, and a virtual camera C1 is set behind the own character 30 while looking down at the own character 30. The area photographed by the camera C1 (the area within the field of view of the camera C1) is the game space displayed on the television monitor 22.

Next, the principle of the method of displaying the explosion pattern will be described. FIG. 4 is a principle diagram showing a method of displaying an explosion pattern. As shown in FIG. 4A, it is assumed that there is a model of the enemy character 31 that is in the field of view of the camera C1. The enemy character 31 includes a bullet character 32
4B, the model of the enemy character 31 and the model of the bullet character 32 disappear as shown in FIG. 4B, and instead, the texture 40 (explosion pattern) on which the explosion image is drawn is pasted. The attached rectangular planar polygon 41 (explosion pattern polygon) appears. At this time, the center O _{2 of the} polygon 41 is almost the enemy character 31
Is set at the position where the center O ₁ of the image existed. The polygon 41 is set so as to be parallel to the camera C1 (a state facing the front with respect to the camera C1). As a result, the explosion image is displayed on the screen of the television monitor 22 at the position where the enemy character 31 was located, with the front facing the screen of the television monitor 22.

Here, the enemy character 31 is formed as a set of polygons in the body coordinate system, and the movement of the enemy character 31 in the game space is defined by the movement amount of the body coordinate axis. Therefore, the display of the enemy character 31 on the television monitor 22 is achieved by periodically (every 1/60 second) obtaining the coordinate value in the screen coordinate system of each polygon updated by the movement of the body coordinate axis. You. Therefore, if the conversion formula for converting the body coordinates into the screen coordinates is obtained according to the movement of the body coordinate axes, the movement of the enemy character 31 can be easily displayed on the television monitor 22. This conversion equation is expressed by the following (Equation 1) using the conversion matrices B ₁ , L, C ⁻¹ , and S, whereby the position vector V ₁ of each polygon vertex in the screen coordinate system is obtained. Can be

V ₁ = p ₁ B ₁ LC ^-1 S (Equation 1) where p ₁ in (Equation 1) is the body coordinate of any one vertex of the (solid) model of the enemy character 31 This is a position vector in the system. B ₁ in (Equation 1) indicates a matrix for converting the body coordinate system (the coordinate system of the model of the enemy character 31) into the local coordinate system (the coordinate system of the course 29). In other words, the coordinates of any one vertex of the model of the enemy character 31 viewed from the center of the model (the origin of the body coordinate system) are converted into local coordinates set on the course 29.

L in (Equation 1) represents a matrix for converting the local coordinate system into a world coordinate system (a coordinate system common to all games such as a character, a course 29, and a game space). . In other words, it indicates that the coordinates of one vertex of the model of the enemy character 31 viewed from the origin of the local coordinate system are converted to coordinates of the local coordinate system set on the origin of the world coordinate system.

Further, C ^-1 in (Equation 1) indicates a matrix for converting the world coordinate system into a camera coordinate system (a coordinate system set for the camera C1). S in (Equation 1) represents the camera coordinate system in the screen coordinate system (television monitor 2).
2 shows a matrix to be transformed into a coordinate system of a display on the second device. Then, as shown in (Equation 1), by sequentially converting the position vector p ₁ in the body coordinate system by using these conversion matrices B ₁ , L, C ⁻¹ , and S, the position vector V in the screen coordinate system can be obtained. ₁ is obtained.

On the other hand, when the enemy character 31 comes into contact with the bullet character 32, the texture 40 on which the explosion image is drawn is pasted by the conversion formula (Formula 2) obtained by the following (Formula 2). The polygon 41 is displayed on the television monitor 22.

V ₂ = p ₂ B ₂ C'C ^-1 S (Equation 2) Here, C ^-1 and S are the same as those in (Equation 1). C ′ is a composite transformation of a rotation element in C (matrix of transformation from the camera coordinate system to the world coordinate system) and a translation element in L (matrix of transformation from the local coordinate system to the world coordinate system). It is a matrix.

B ₂ indicates a matrix for converting the body coordinate system to the local coordinate system. However, in this case, the polygon 4 viewed from the center of the polygon 41 (the origin of the body coordinate system)
1 indicates that the coordinates of any one of the vertices are converted into coordinates as viewed from the origin of the course 29. Also, p ₂ is
The position vector of any one vertex of the polygon 41 in the body coordinate system is shown.

The data of the texture 40 described above,
The data of the polygon 41 and the data relating to (Equation 1) and (Equation 2) are loaded from the CD-ROM 23 to the main memory 5 when the video game machine is turned on (storage means, polygon data storage). Means, and texture data storage means). Then, it is appropriately used in the display processing of the explosion pattern.

Next, an explosion pattern display process performed by the CPU 1 of the video game machine executing the game program will be described. FIG. 5 is a flowchart showing the explosion pattern display processing.

In S01 in FIG. 5, a transformation matrix C- ¹ for transforming the world coordinate system into the camera coordinate system is obtained. This is derived from the coordinates of camera C1 in the world coordinate system. Then, the process proceeds to S02.

In S02, "C ^-1 S" for converting the coordinate system of the camera C1 into the screen coordinate system is obtained. Then, the process proceeds to S03. In S03, any one of the enemy characters 31 displayed on the television monitor 22 is specified, and a model of the enemy character 31 is selected. Then, the process proceeds to S04.

In S04, it is determined whether or not the bullet character 32 has hit the enemy character 31 (corresponding to a determination means). At this time, if it is determined that the bullet character 32 has hit, the process proceeds to S05. On the other hand, if it is determined that the bullet character 32 did not hit, the process proceeds to S09.

When the process proceeds to S05, the polygon 4 on which the texture 40 on which the explosion image is drawn is pasted
1 (explosion pattern polygon) is generated and this polygon 4
1 is replaced with the model of the enemy character 31. At this time, the center coordinates of the polygon 41 are set to the center coordinates of the model of the enemy character 31. Then, the process proceeds to S06.
Proceed to.

[0043] In S06, the transformation matrix B ₂ for converting a body coordinate system into the local coordinate system is determined. This B ₂ represents the coordinates of each vertex as viewed from the center of the polygon 41 in the course 29.
It is a transformation matrix for transforming to the local coordinates set above. Then, the process proceeds to S07.

In S07, a composite transformation matrix C 'of a rotation element in C (transformation matrix from the camera coordinate system to the world coordinate system) and a translation element in L (transformation matrix from the local coordinate system to the world coordinate system) Is required. Then, the process proceeds to S08.

In S08, using the obtained transformation matrix,
According to the conversion equation (Equation 2), the position vector of each vertex of the polygon 41 of the explosion pattern in the body coordinate system is converted into a position vector in the screen coordinate system. Polygon 41 having position vector converted in this way
Is the position where the model of the enemy character 31 was located,
The surface to which the texture 40 is attached is set in a state facing the front (front of the screen) with respect to the camera C1 (corresponding to a setting unit). That is, the explosion image (explosion pattern) viewed from the front is set to be displayed on the screen of the television monitor 22 instead of the enemy character 31. Then, the process proceeds to S12.

[0046] When the processing proceeds to S09, the transformation matrix B ₁ for converting a body coordinate system into the local coordinate system are determined. Then, the process proceeds to S10. In S10, a transformation matrix L for transforming the local coordinate system into the world coordinate system is obtained. Then, the process proceeds to S11.

In S11, using the obtained transformation matrix,
According to the conversion equation (Equation 1), the position vector in the body coordinate system of each vertex of the model of the enemy character 31 is converted into the position vector in the screen coordinate system. And
The process proceeds to S12.

In S12, it is determined whether or not hit determination has been made for all the enemy characters 31 (displayed on the television monitor 22) that are within the field of view of the camera C1. At this time, if it is determined that the processing has not been completed for all the enemy characters 31, the processing proceeds to S0.
Returning to S3, the processing of S03 to S12 is repeatedly performed until a determination of YES is made in S12. On the other hand, if it is determined that the processing has been completed for all the enemy characters 31, the processing proceeds to S13.

In S13, drawing processing is performed on all of the enemy characters 31 replaced with the explosion pattern (polygon 41) obtained by the processing in S01 to S12 and the enemy characters 31 not replaced with each other. It is displayed on the screen of the John Monitor 22 (see FIG. 2). When the process of S13 ends, the explosion pattern display process ends.

The display processing of the explosion pattern is repeatedly performed at a term of 1/60 second. One explosion pattern display process is performed when a plurality of enemy characters 31 and a plurality of bullet characters 32 are displayed on the screen.
This is performed for each combination. For example, 10
When the enemy character 31 and three bullet characters 32 are displayed, 10 × 3 = 30 different explosion pattern display processes are performed in one explosion pattern display process.

According to the present embodiment, when the enemy character 31 and the bullet character 32 come into contact with each other, the explosion pattern displayed on the television monitor 22 is replaced by one.
The display is set using the polygons 41 (explosion pattern polygons). Therefore, the processing load on the video game machine can be reduced. In addition, since the polygon 41 is set so as to always face the front of the screen of the television monitor 22, a realistic explosion pattern is displayed on the television monitor as a pseudo three-dimensional image.

In this embodiment, the enemy character 31
Although the explosion pattern display processing has been described, the explosion pattern display processing of the bullet character 32 or the explosion pattern of the own character 30 may be performed.

Although the polygon 41 to which the texture 40 of the explosion image is pasted is set to a rectangle, it may be a triangle or another polygon. The explosion pattern display device according to the present invention is not limited to a video game machine of a shooting game, but may be a video game machine for executing a so-called action game, a fighting game, a role playing game, a puzzle game, or a computer. The present invention can also be applied to the field of a computer device for displaying a character explosion in a virtual three-dimensional space formed by the computer.

[0054]

According to the explosion pattern display device, the display method, and the machine-readable recording medium on which the computer program is recorded according to the present invention, the explosion pattern can be easily processed in a virtual three-dimensional space as compared with the related art. indicate.
Therefore, the processing load on the computer can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a video game machine including a display device for displaying an explosion pattern according to an embodiment of the present invention.

FIG. 2 is a diagram showing a display example of a game play screen.

FIG. 3 is an explanatory diagram of a game space.

FIG. 4 is a principle diagram of an explosion pattern display method.

FIG. 5 is a flowchart showing an explosion pattern display process.

[Explanation of symbols]

 1 CPU 3 Graphics Data Generation Processor 5 Main Memory 10 Drawing Processor 23 CD-ROM 30 Own Character 31 Enemy Character 32 Bullet Character 40 Texture 41 Polygon

Claims (4)

[Claims] An explosion pattern display device for displaying an explosion of a character generated in a virtual three-dimensional space on a screen as a pseudo three-dimensional image, wherein a position for specifying an arrangement position of the character in the virtual three-dimensional space is provided. Storage means for storing specific data; polygon data storage means for storing polygon data of an explosion pattern indicating the explosion of the character; texture data storage for storing texture data in which an explosion image for the explosion pattern is drawn Means, determining means for determining the explosion of the character, and when the determining means determines the explosion of the character, a polygon is formed using polygon data of the explosion pattern and texture data on which the explosion image is drawn. When generating an explosion pattern polygon with a texture with an explosion image drawn on it Setting means for arranging the explosion pattern polygon at an arrangement position of the character based on the position specifying data in a state where a texture on which the explosion image is drawn faces the front of the screen. Characteristic explosion pattern display device. 2. The explosion pattern is composed of one polygon, and the polygon is arranged in a body coordinate system with a surface on which a texture on which the explosion image is drawn is attached facing the front. 2. The explosion pattern display device according to claim 1, wherein the explosion pattern is stored in polygon data storage means. 3. A method for displaying an explosion pattern in which an explosion of a character generated in a virtual three-dimensional space is displayed on a screen as a pseudo three-dimensional image, wherein a position for specifying an arrangement position of the character in the virtual three-dimensional space is provided. Reading specific data; reading polygon data of an explosion pattern indicating the explosion of the character; reading texture data in which an explosion image for the explosion pattern is drawn; judging the explosion of the character; When an explosion is determined, an explosion pattern polygon in which a texture in which an explosion image is drawn is attached to a polygon is generated using the polygon data of the explosion pattern and the texture data in which the explosion image is drawn. The explosion pattern polygon is converted to the explosion image based on the position specifying data. Display method of explosion pattern, characterized in that he texture is arranged in the arrangement position of the character in a state facing the front with respect to the screen. 4. A machine-readable recording medium on which a computer program for causing a computer to execute a process of displaying a character explosion occurring in a virtual three-dimensional space on a screen as a pseudo three-dimensional image is provided. A step of reading out position specifying data for specifying an arrangement position of the character in the virtual three-dimensional space; a step of reading out polygon data of an explosion pattern indicating an explosion of the character; a texture in which an explosion image for the explosion pattern is drawn Reading data; determining the explosion of the character; and determining the explosion of the character by using polygon data of the explosion pattern and texture data in which the explosion image is drawn when the determination unit determines the explosion of the character. Texture with explosion image drawn on polygon Generating an explosion pattern polygon attached to the character, and arranging the explosion pattern polygon at the character arrangement position with the texture on which the explosion image is drawn facing the screen based on the position specifying data. And a machine-readable recording medium on which a program for executing the steps is recorded.