shoot_from simple code

	if (shooting and not prev_shooting):
		# just pressed
		var shot = preload("res://shot.scn").instance()
		#use the position3d as reference
		shot.set_pos( get_node("shootfrom").get_global_pos() )
		#put it two parents above, so it is not moved by us
		get_node("../..").add_child(shot)
		#play sound
		get_node("sfx").play("shoot")