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1/348:Polyobj_StartLine(id, mirror, sequence)
- id: polyobject ID to setup;
- mirror: optional ID of movement mirroring polyobject, which will move in opposite direction when this polyobject is controlled;
- sequence: sound sequence ID to play during this polyobject's movement.
This is a static linedef special which is required to be placed on a single polyobject linedef to set it up. Every polyobject must have an anchor thing and either this special or Polyobj_ExplicitLine.