枚举成员

eCOLLISION_DOWN: 4

Character has collision below.

角色下方发生碰撞。

eCOLLISION_SIDES: 1

Character is colliding to the sides.

角色与侧面发生碰撞。

eCOLLISION_UP: 2

Character has collision above.

角色上方发生碰撞。