col2d_Circle
col2d_CircleInCircle
col2d_CircleInRect
col2d_ClipRect
col2d_Line
col2d_LineVsCircle
col2d_LineVsRect
col2d_PointInCircle
col2d_PointInRect
col2d_PointInTriangle
col2d_Rect
col2d_RectInCircle
col2d_RectInRect
col2d_RectVsCircle