From Garry's Mod
Warning! Decimal values are for reference only! The actual value may be different between two Garry's Mod versions.
|MOVECOLLIDE_FLY_BOUNCE||1||Entity bounces, reflects, based on elasticity of surface and object - applies friction (adjust velocity)|
|MOVECOLLIDE_FLY_CUSTOM||2||ENTITY:Touch will modify the velocity however it likes|
|MOVECOLLIDE_FLY_SLIDE||3||Entity slides along surfaces (no bounce) - applies friciton (adjusts velocity)|
|MOVECOLLIDE_COUNT||4||Number of different movecollides|