| 摘要 |
A free direction input area, a lateral direction input area, and a longitudinal direction input area are provided on an input surface of a touch panel. When a user performs a slide operation whose starting point is within the free direction input area, movement of a virtual camera is controlled based on a change amount of a touch position with respect to X- and Y-axis directions. When the user performs a slide operation whose starting point is within the lateral direction input area, movement of the virtual camera is controlled based on a change amount of a touch position only with respect to the X-axis direction. When the user performs a slide operation whose starting point is within the longitudinal direction input area, movement of the virtual camera is controlled based on a change amount of a touch position only with respect to the Y-axis direction. |
