Patent ID: 7044855
Filing Date: 2006-05-16
Classification: A63F

Abstract:
1. A game device for proceeding a game in a game field formed in a three-dimensional virtual space, the three-dimensional virtual space including a ground scenery upon which a cursor is moved and a sky from which a viewpoint observes the cursor on the ground scenery, comprising: cursor moving means for moving the cursor within the ground scenery in accordance with operation; viewpoint moving means for moving the viewpoint located in the sky of said three-dimensional virtual space in accordance with said cursor; coordinate transforming means for transforming a view range of said viewpoint into a screen coordinate system; and viewpoint position adjusting means for adjusting a position of said viewpoint so that a non-mapping area of the ground scenery will not appear on the screen when said view range extends beyond a mapping area of the ground scenery to the non-mapping area; wherein when the non-mapping area is not in said view range, the cursor and the viewpoint are moved together so as to maintain a view angle between the cursor and the viewpoint, and when the non-mapping area is in said view range, the position of the cursor is not moved and the position of the viewpoint is moved so as to change the view angle between the cursor and the viewpoint such that the non-mapping area will not appear on the screen; and the amount by which the position of the viewpoint is moved (ΔV) by the viewpoint position adjusting means is defined by the following equation:  where V