boolean, Vector, Angle Entity:GetSequenceMovement( number sequenceId, number startCycle, number endCyclnde )
Returns the delta movement and angles of a sequence of the entity's model.
2 number startCycle
The sequence start cycle. 0 is the start of the animation, 1 is the end.
3 number endCyclnde
The sequence end cycle. 0 is the start of the animation, 1 is the end. Values like 2, etc are allowed.