Abstract: A game management device manages a game to be played by selecting with a touch operation, a selectable target from a plurality of selectable targets (for example, pitch types) displayed on a screen. A display control unit display the plurality of selectable targets (for example, a strike pitch location and a ball pitch location) on the screen. An area setting unit sets a plurality of parameter areas respectively corresponding to the plurality of parameters (for example, a strike location and a ball location) within the screen. When performing an operation of moving a selected target to one of the plurality of parameter areas, a parameter setting unit sets a parameter corresponding to the parameter area to which the selected target is moved, the selected target being selected from among the plurality of selectable targets with the contact operation.

Abstract: A game management device manages a game to be played by selecting with a touch operation, a selectable target from a plurality of selectable targets (for example, pitch types) displayed on a screen. A display control unit display the plurality of selectable targets (for example, a strike pitch location and a ball pitch location) on the screen. An area setting unit sets a plurality of parameter areas respectively corresponding to the plurality of parameters (for example, a strike location and a ball location) within the screen. When performing an operation of moving a selected target to one of the plurality of parameter areas, a parameter setting unit sets a parameter corresponding to the parameter area to which the selected target is moved, the selected target being selected from among the plurality of selectable targets with the contact operation.

Abstract: A video game machine includes a plurality of operation units corresponding to a plurality of leading characters appearing in a virtual three-dimensional space, a game-screen display unit, a coordinate storage unit for storing pairs of coordinates set so as to be related to the leading characters, a game-screen display-control unit for displaying, on the game-screen display unit, a game screen obtained by using, as a viewpoint, any one of the pairs of coordinates, an operation determination unit for determining whether a viewpoint-switching operation has been implemented among operations using one operation unit for moving one leading character related to the pair of coordinates of the viewpoint in the game screen displayed on the game-screen display unit, and a viewpoint-switching-display control unit for initiating a viewpoint-switching movement of switching the pair of coordinates of the viewpoint to another pair of coordinates when the operation determination unit has determined that the viewpoint-switchin

Abstract: In a video game system, model data and a plurality of arrangement-data groups formed of model numbers, position data, rotation-angle data, and scale data are recorded into a recording medium. An operation detection unit detects an operation on a controller. A viewpoint movement section moves the viewpoint, and a field-of-view determination section determines a model included in the field of view. An instruction control section outputs the arrangement-data group corresponding to this model. An image processing processor converts the coordinate data of each vertex of a plurality of polygons constituting the corresponding model at the position indicated by the position data sent from the instruction control section, according to the rotation-angle data and the scale data, and assigns the texture specified by each texture instruction data to each polygon.