| 摘要 |
PROBLEM TO BE SOLVED: To provide an optimizing system for picture display with which even the CG board of a low arithmetic capability can output an enriched image. SOLUTION: When the category of a line and a train is selected on a game starting picture, map data corresponding to the selected line and a table corresponding to the train class are read out of a ROM 18 and train driving simulation is started. Data are read out of an appearance data base 26 and the number of an object having an appearance flag is stored in a display object data base 32 as a display object number. This display number is read out of the display object data base 32 at the spot of appearance, and shape data in an object data base 25 are processed by an image processing part 21 and displayed on a display part 2. When an erasure flag is read out, that display object number is erased from the display object data base 32. |
