| 摘要 |
PROBLEM TO BE SOLVED: To provide a picture data displaying method capable of displaying pictures suitable for three-dimensional (3D) game capable of executing an interesting game by realistic display pictures having appropriate difficulty. SOLUTION: The picture data displaying method displays the picture data of a display body. A 3D fixed coordinate system 200 fixed on a reference face 200, a 3D visual point coordinate system 300 following the movement of a visual point 500 and a two-dimensional (2D) projection coordinate system 400 defined relationally to the system 300 are set up and display bodies 202 to 208 belonging to the system 200 and display bodies 302 to 304 belonging to the system 300 are projected and displayed on the system 400. A 2D judging coordinate system 350 corresponding to the system 400 is set up in the system 300 and collision among the display bodies 202 to 208, 302 to 304 is judged based upon the positions of the display bodies 202 to 208, 302 to 304 projected on the system 350. |
