Abstract: Game program has a procedure for renewing, for reducing a value of a life power parameter according to volume of damage received and for renewing it, a procedure for setting parameter value, for setting the value of the life power parameter reduced and renewed as a standard parameter value and for storing it in a memory, a procedure for recovering, for increasing the value of the life power parameter by a value of recovery parameter which is set on a recovery item which is instructed to be used by a player and for renewing it, a procedure for reducing, for reducing the value of the life power parameter in the memory which was increased and renewed at a predetermined reduction velocity with the passage of time and for renewing it.

Abstract: A game system projectively transforms a plurality of polygons, which form three-dimensional object located in an imaginary three-dimensional space, to a viewpoint coordinate system to draw the polygons on a projection plane. The game system includes a polygon drawing unit for drawing a polygon with a first texture which affects drawing of other texture; a second texture drawing unit for drawing a second texture, prepared in advance, on the polygon drawn by the polygon drawing unit based on two-dimensional coordinates of the second texture; and a texture moving unit for simulatively moving the second texture, drawn by the second texture drawing unit, on the polygon drawn by the polygon drawing unit by varying the two-dimensional coordinates in time-series.

Abstract: A unique ID 35 by which a distribution region can be identified is attached to a use-permission certificate 33 distributed in different regions. Different terminal devices send unique terminal device IDs to a data management device. Based on these IDs, the region in which the terminal device is installed is determined. IDs attached to use-permission certificates are sent by the terminal devices to the data management device through a communication network. Based on these IDs, the distribution regions of the use-permission certificates are determined. If the determined terminal device installation region and the use-permission certificate distribution region match, the use of data by the terminal device is allowed.

Abstract: Game system in which an object is arranged in a virtual three-dimensional space including a display device, an input device for outputting signals according to player operations and a game control device for executing a game according to a program while checking the output of the input device and displaying a visual field image including the object on the display device. The visual field image is viewed from a predetermined view point position in the virtual three-dimensional space. The game control device includes a position determining device for determining whether to view the object from a first view point position which is a back and slightly inclined position toward a moving direction of the object to view an observation position set forward the object, or from a second view point position from which the observation point is viewed in a fixed direction regardless of the movement of the object.

Abstract: Game system in which an object is arranged in a virtual three-dimensional space including a display device, an input device for outputting signals according to player operations and a game control device for executing a game according to a program while checking the output of the input device and displaying a visual field image including the object on the display device. The visual field image is viewed from a predetermined view point position in the virtual three-dimensional space. The game control device includes a position determining device for determining whether to view the object from a first view point position which is a back and slightly inclined position toward a moving direction of the object to view an observation position set forward the object, or from a second view point position from which the observation point is viewed in a fixed direction regardless of the movement of the object.

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.

Abstract: At respective positions spaced from each other on an optic axis of illumination light, a plurality of polygons, each of which corresponds to the shape of a transverse cross section at each position of a virtual region gradually expanded as the illumination light advances from a light source 1 in an optic axis direction are disposed so that the normal of each polygon orients toward a view point in a virtual three-dimensional space. The position of each polygon on the optic axis is set so that at least adjacent polygons are partially superimposed. A texture expressing divergence of illumination light is mapped to each polygon. The size in a direction orthogonal to the optic axis of a virtual region is changed based on a distance from the view point to the light source. The magnification of the virtual region to the distance from the light source is differentiated based on a relationship between an optic axis direction and a direction in which the light source is viewed from the view point.

Abstract: A game system includes: a storage device for storing data of imaginary game field constituted by a plurality of areas to be displayed in scenes of game; and a control device for advancing the game according a predetermined program and reading out the data of the imaginary game field from the storage device to produce images to be displayed. The control device includes: a judgment table producing unit for judging whether or not a character located in an area is within a visual field of another character located in another area for all areas in the imaginary game field in which the character can be located, when the data of the imaginary game field is read out, and for producing judgment tables based on judgment results; and a unit for controlling action of the character located in the areas of the imaginary game field based on the judgment tables.

Abstract: An opened polygon including a transparent region for maintaining a backward drawing state is drawn. Next, a mask polygon which inhibits another polygon and texture from begin forwardly drawn afterward and maintains a backward drawing state is drawn behind the drawn opened polygon so as to be superimposed by at least the transparent region thereof. Then, in the case where a new polygon is drawn to be superimposed in front of an opened polygon, behind which the mask polygon is drawn, the new polygon is drawn in a region other than the transparent region of the opened polygon. In this manner, even in the case where another polygon is drawn to be overwritten at the boundary of a plurality of polygons having a positional relationship displayed on a game picture, it is possible to maintain a three-dimensional image.

Abstract: There is provided a game system capable of enhancing the pleasure of the game by improving elements which exert influence upon the selection of a character action. In a system including a display apparatus, an input apparatus, and a game control apparatus for displaying a plurality of characters including at least one character (111) set as operation objects of the player on a game screen (110), and causing respective characters to take action in accordance with a predetermined program while referring to the output signal of the input apparatus, counting synchronized to the progress of a game is conducted by counting devices provided so as to be respectively associated with the characters of operation objects. Upon arrival of a count value of one of the counting devices at a predetermined value, processing required to make a character (111) of the operation object take action is executed in response to directions given from the player via the input apparatus.

Abstract: At respective positions spaced from each other on an optic axis of illumination light, a plurality of polygons, each of which corresponds to the shape of a transverse cross section at each position of a virtual region gradually expanded as the illumination light advances from a light source 1 in an optic axis direction are disposed so that the normal of each polygon orients toward a viewpoint in a virtual three-dimensional space. The position of each polygon on the optic axis is set so that at least adjacent polygons are partially superimposed. A texture expressing divergence of illumination light is mapped to each polygon. The size in a direction orthogonal to the optic axis of a virtual region is changed based on a distance from the view point to the light source. The magnification of the virtual region to the distance from the light source is differentiated based on a relationship between an optic axis direction and a direction in which the light source is viewed from the view point.

Abstract: A game system in which a plurality of characters are each respectively made to act in dependence on a schedule prescribed in correspondence to a time of a game, at a time point the game has progressed to an end point of a loop range, if a predetermined progress permission condition is met, there is permitted progress of the game ahead of the loop range. If the progress permission condition is not met, the time on the game is made to a start point of the loop range. At this time, exceptional information as part including information associated with an experience on the game by a character as an operation object is maintained in a state attained at the end point of the range, having other information restored in a state corresponding to a start point.

Abstract: It is an object of the present invention to enable to provide with a image display method which displays a high-quality picture without making any disorder on the screen even when the processing load increases.

Abstract: A game system performs perspective projection conversion of vertex coordinates of a plurality of polygons forming three-dimensional objects located in an imaginary three-dimensional space based on perspective conversion matrix, and forms display images of the three-dimensional objects on a projection plane of a viewpoint coordinate system.

Abstract: A game system includes: a storage device for storing data of imaginary game field constituted by a plurality of areas to be displayed in scenes of game; and a control device for advancing the game according a predetermined program and reading out the data of the imaginary game field from the storage device to produce images to be displayed. The control device includes: a judgment table producing unit for judging whether or not a character located in an area is within a visual field of another character located in another area for all areas in the imaginary game field in which the character can be located, when the data of the imaginary game field is read out, and for producing judgment tables based on judgment results; and a unit for controlling action of the character located in the areas of the imaginary game field based on the judgment tables.