Game system and computer readable storage medium storing game program

• US 6,831,656 B2
• Filed: 03/23/2001
• Issued: 12/14/2004
• Est. Priority Date: 03/24/2000
• Status: Expired due to Fees

• Current Assignee: Konami Digital Entertainment Company Limited (Konami Holdings Corp.)
• Original Assignee: Konami Computer Entertainment Japan, Inc. (Konami Holdings Corp.)
• Inventors: Kitao, Takashi
• Primary Examiner(s): Bella, Matthew C.
• Assistant Examiner(s): CHEN, PO WEI
• Application Number:
  US09/815,572
• Publication Number:
  US 20010030652A1
• Time in Patent Office: 1,362 Days
• Field of Search: 345/426, 345/582, 345/419, 345/583, 345/428
• US Class Current: 345/582
• CPC Class Codes: A63F 13/10 Control of the course of the game, e.g. start, progess, end
• CPC Class Codes: A63F 13/45 Controlling the progress of the video game
• CPC Class Codes: A63F 13/52 involving aspects of the displayed game scene
• CPC Class Codes: A63F 2300/6692 using special effects, generally involving post-processing, e.g. blooming
• CPC Class Codes: G06T 11/001 Texturing; Colouring; Generation of texture or colour inpainting G06T5/77
• CPC Class Codes: G06T 15/04 Texture mapping

Abstract

A game system in which a game field is configured in a virtual three-dimensional space and a display image of said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture. The system comprises a texture storing device for storing in advance a texture representing a three-dimensional configuration as a two-dimensional pattern, a mapping surface setting device for setting a mapping surface of the texture in the game field, a texture processing device for processing the texture readout from the texture storing device in accordance with a dispositional relationship between the viewpoint and the mapping surface, and a texture mapping device for mapping the processed texture on the mapping surface.

Claims

1. A game system in which a game field is configured in a virtual three-dimensional space and a display image of said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture, comprising:

a texture storing device for storing in advance a texture rendering a pattern thereon to be recognized by observing a recess portion from a front side thereof;

a mapping surface setting device for setting a mapping surface of the texture in the game field;

a texture processing device for determining an area to be treated as a dead space in the texture depending on an oblique angle of the mapping surface observed from the viewpoint, defining an extraction position to extract a part from the texture depending on the oblique angle so as to eliminate the area to be treated as the dead space from the texture, extracting the part from the texture readout from the texture storing device in accordance with the extraction position, and processing the extracted part so as to be expanded along one linear direction such that said extracted part is stretched to an original size of the texture in the one linear direction;

a mask pattern disposal device for disposing a mask pattern set on the texture after processed to accord with a circumferential configuration of the recess portion of the texture before processed; and

a texture mapping device for modifying an area of the processed texture matching with the mask pattern so as to change a shape of the recess portion to be visible depending on the oblique angle of the mapping surface observed from the viewpoint, and mapping the area to the mapping surface.

2. The game system according to claim 1, wherein the texture processing device defines the extraction position as a line shifting on the texture in connection with the oblique angle.

3. A game system in which a game field is configured in a virtual three-dimensional space and a display image of said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture, comprising:

a texture storing device for storing in advance a plurality of textures, on each of which a head portion or a tail portion with respect to a moving direction of a fireball object to be displayed is represented as a two-dimensional pattern;

a mapping surface setting device for setting a mapping surface of the texture to be opposite to the viewpoint in the game field;

a texture processing device for, in accordance with a dispositional relationship between the viewpoint and the fireball object, after setting an extraction position with respect to the moving direction on the texture of the head portion, processing the texture of the head portion so as to extract a part of the texture of the head portion, the part being more forward in the moving direction than the extraction position, and processing the tail portion of the texture so as to decrease a size thereof in the moving direction in accordance with the dispositional relationship;

a texture joining device for joining the processed textures to each other at a joint position according with the extraction; and

a texture mapping device for mapping the joined textures on the mapping surface.

4. A game system in which a game field is configured in a virtual three-dimensional space and a display image of a gaseous object around a specified character in said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture, comprising:

a texture storing device for storing in advance a plurality of textures, a mapping surface setting device for setting a mapping surface of each of the textures to be opposite to the viewpoint in the game field;

a texture processing device for disposing each of the textures to each of triangular areas composing a polygon model representing the gaseous object with deformation to adapt to each vertex coordinate of the triangular areas to join each of the textures on the polygon model;

a texture mapping device for mapping the joined textures on the mapping surface,

wherein on each of the textures a gradation pattern is rendered from an inner side to an outer side of each of the triangular areas, and a predetermined transparency is set for each of the triangular areas from the inner side to the outer side of each of the triangular areas,

wherein the texture processing device deforms the polygon model, according to a dispositional relationship between the viewpoint and a moving direction of the character, to make a rear side of the polygon model in the moving direction expanded outside in comparison with a front side of the polygon model and modifies the transparency of each of the textures, according to the dispositional relationship between the viewpoint and the moving direction of the character, to be increased gradually form the front side to the rear side.

5. A computer readable storage medium storing a game program for allowing a computer included in a game system in which system in which a game field is configured in a virtual three-dimensional space and a display image of said game field visible from a predetermined viewpoint is formed to thereby sbe displayed as a game picture, to serve as:

a texture storing device for storing in advance a texture rendering a pattern thereon to be recognized by observing a recess portion from a front side thereof;

a mapping surface setting device for setting a mapping surface of the texture in the game field;

a texture processing device for determining an area to be treated as a dead space in the texture depending on an oblique angle of the mapping surface observed from the viewpoint, defining an extraction position to extract a part from the texture depending on the oblique angle so as to eliminate the area to be treated as the dead space from the texture, extracting the part from the texture readout from the texture storing device in accordance with the extraction position, and processing the extracted part so as to be expanded along one linear direction such that said extracted part is stretched to an original size of the texture in the one linear direction;

a mask pattern disposal device for disposing a mask pattern set on the texture after processed to accord with a circumferential configuration of the recess portion of the texture before processed; and

a texture mapping device for modifying an area of the processed texture matching with the mask pattern so as to change a shape of the recess portion to be visible depending on the oblique angle of the mapping surface observed from the viewpoint, and mapping the area to the mapping surface.

6. The computer readable storage medium according to claim 5, wherein the texture processing device defines the extraction position as a line shifting on the texture in connection with the oblique angle.

7. A computer readable storage medium storing a game program for allowing a computer included in a game system in which system in which a game field is configured in a virtual three-dimensional space and a display image of said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture, to serve as:

a texture storing device for storing in advance a plurality of textures, on each of which a head portion or a tail portion with respect to a moving direction of a fireball object to be displayed is represented as a two-dimensional pattern;

a mapping surface setting device for setting a mapping surface of the texture to be opposite to the viewpoint in the game field;

a texture processing device for, in accordance with a dispositional relationship between the viewpoint and the fireball object, after setting an extraction position with respect to the moving direction on the texture of the head portion, processing the texture of the head portion so as to extract a part of the texture of the head portion, the part being more forward in the moving direction than the extraction position, and processing the tail portion of the texture so as to decrease a size thereof in the moving direction in accordance with the dispositional relationship;

a texture joining device for joining the processed textures to each other at a joint position according with the extraction position; and

a texture mapping device for mapping the joined textures on the mapping surface.

8. A computer readable storage medium storing a game program for allowing a computer in a game system in which a game field is configured in a virtual three-dimensional space and a display image of a gaseous object around a specified character in said game field visible from a predetermined viewpoint is formed to thereby be displayed as a game picture, to serve as:

a texture storing device for storing in advance a plurality of textures,

a mapping surface setting device for setting a mapping surface of each of the textures to be opposite to the viewpoint in the game field;

a texture processing device for disposing each of the textures to each of triangular areas composing a polygon model representing the gaseous object with deformation to adapt to each vertex coordinate of the triangular areas to join each of the textures on the polygon model;

a texture mapping device for mapping the joined textures on the mapping surface,

wherein on each of the textures a gradation pattern is rendered from an inner side to an outer side of each of the triangular areas, and a predetermined transparency is set for each of the triangular areas from the inner side to the outer side of each of the triangular areas,

wherein the texture processing device deforms the polygon model, according to a dispositional relationship between the viewpoint and a moving direction of the character, to make a rear side of the polygon model in the moving direction expanded outside in comparison with a front side of the polygon model and modifies the transparency of each of the textures according to the dispositional relationship between the viewpoint and the moving direction of the character, to be increased gradually form the front side to the rear side.