public Coord getc() {
	Coord tc = this.tc;
	Gob tgt = gob.glob.oc.getgob(this.tgt);
	if(tgt != null)
	    tc = tgt.rc;
	Coord d = tc.add(gob.rc.inv());
	double e = gob.rc.dist(tc);
	return(gob.rc.add((int)((d.x / e) * dist), (int)((d.y / e) * dist)));
    }