residualvm/residualvm — pull request #563 by Botje (2012-03-11 15:15:11+00:00)
Title: EMI: Implement AttachActor/DetachActor, GetActorWorldPos

This patch adds the necessary machinery to attach actors to other actors.
It also implements the GetActorWorldPos opcode, which is typically used to get the (actor.head - actor.pos) vector.