int ncenterx = a-centerx;
     	int ncentery = b-centery;
     	double x2d = (a-centerx) * (a-centerx);
     	double y2d = (b-centery) * (b-centery);
     	double distance = (Math.sqrt(Math.abs(x2d+y2d)));
   	double ny2;
     	if(ncentery != 0 )
	 {
     		ny2 =ncenterx/ncentery;
  	 }
  	else
	 {
    		ny2 = 0;
   	 }
     	double tanx = Math.atan(ny2);
     	double anglex = tanx + mc.thePlayer.rotationYaw;
     	double rdcosx = Math.cos(anglex);
     	double rdsinx = Math.sin(anglex);
     	System.out.println(rdcosx + ", " + rdsinx);
     	double rcosx = distance * rdcosx;
     	double rsinx = distance * rdsinx;
     	double aposx = mc.thePlayer.posX+rcosx;
     	double aposy = mc.thePlayer.posZ+rsinx;
     	int gbcx = (int) aposx;
     	int gbcy = (int) aposy;