cx = new_cx; cy = new_cy;
	void move(int new_cx, int new_cy, Chunk_object_list *new_chunk, 			int new_sx, int new_sy, int new_frame, 			int new_lift = -1)		{		if (chunk)		// Remove from current chunk.			chunk->remove(this);		chunk = new_chunk;	// Add to new one.		cx = new_cx;		cy = new_cy;		set_shape_pos(new_sx, new_sy);		if (new_frame >= 0)			set_frame(new_frame);		if (new_lift >= 0)			set_lift(new_lift);		chunk->add(this);		}