| 摘要 |
To smooth the display of a fielder catching a ball, clearly determine a collision between a ball and a fence by a simple method, and correctly hide polygons that are in close contact with one another, there are provided virtual region generation means (31) for generating a collision area for collision judgement is disposed at a predetermined distance from a ball image, and judgement means (32) for judging at which position of the collision area the fielder exists. When the fielder is judged to be on the collision area, image changing means (33) gradually changes the posture of the fielder from the waiting state to the ball catching state. |
