def thruster_on(cls):
     ent = EntityManager.get_by_id(0)
     ent["acc"][0] = 100.0 * math.cos(ent["rot"])
     ent["acc"][1] = 100.0 * math.sin(ent["rot"])
     ps = Factory.create_process(1.0, "emit_particle", {"entity_id": 0})
     process = GameState.get_value("process")
     process.append(ps)
     ent["thruster_process_id"] = len(process) - 1