| 摘要 |
A portable information terminal includes a state determination section that determines whether a current state of a screen is in a first state in which a first area in the screen is not touched, or in a second state in which the first area is touched, based on a touch operation and a touch position on the screen, an image generation section that generates an image in which a current touch position image is returned to an initial position when the second state changes to the first state, an update section that updates operation data based on the touch operation and the touch position in the first area when the screen is in the second state, the operation data indicating an operation direction and an operation amount of a moving object in a game space, and a calculation section that performs calculations for moving the moving object based on the operation data. |
