Defines collision channels
public enum CollisionChannel
WorldStatic 0
WorldDynamic 1
Pawn 2
Visibility 3
Camera 4
PhysicsBody 5
Vehicle 6
Destructible 7
EngineTraceChannel1 8
EngineTraceChannel2 9
EngineTraceChannel3 10
EngineTraceChannel4 11
EngineTraceChannel5 12
EngineTraceChannel6 13
GameTraceChannel1 14
GameTraceChannel2 15
GameTraceChannel3 16
GameTraceChannel4 17
GameTraceChannel5 18
GameTraceChannel6 19
GameTraceChannel7 20
GameTraceChannel8 21
GameTraceChannel9 22
GameTraceChannel10 23
GameTraceChannel11 24
GameTraceChannel12 25
GameTraceChannel13 26
GameTraceChannel14 27
GameTraceChannel15 28
GameTraceChannel16 29
GameTraceChannel17 30
GameTraceChannel18 31