| 摘要 |
PROBLEM TO BE SOLVED: To prevent interest in a game from decreasing because of excessive decrease in luminance of a light-emitting device when making adjustable the brightness of the light-emitting device by player's operation.SOLUTION: A performance control unit (300) includes: an emission control means of controlling emission of a light-emitting device, based on luminance data stored in a predetermined luminance data storage means at predetermined update timing; and a luminance adjustment means of adjusting the luminance data by determining the amount of adjustment, based on a setting value set by luminance setting means (47, 25). A first range, a second range, and a third range are set as ranges for adjusting luminance data, adjustment of luminance data differs depending on whether the luminance data are positioned in the first range, second rage, or third range, and the luminance data are stored in a luminance data storage means without adjusting the luminance data, based on the amount of adjustment, when the luminance data are positioned in the first range and the third range before adjustment of the luminance data by the luminance adjustment means. |
