| 0 |
Ellipsoid collision system and physics engine disabled. The
collision functions default to USE_AABB. This has the advantage of
faster level loading and faster collision detection, however the collision
hulls are Axis Aligned Bounding Boxes (AABB) rather than rotated ellipsoids.
Only BSP levels are supported by the AABB collision system. |
| 0.5 |
Physics engine enabled, but the collision functions default
to USE_AABB. |
| 1 |
Ellipsoid collision system and physics engine enabled (default).
For using the old AABB collision system, the collision functions must be
called with USE_AABB. Entity collision ellipsoids have two fixed
sizes by default, depending on their FAT and NARROW flags. |
| 2 |
Ellipsoid collision and physics engine enabled. For using
the old AABB collision system, the collision functions must be called with
USE_AABB. All entities' FAT and NARROW flags are both
set by default, thus their collision ellipsoids are set to the real size
of their first frame. |