load($SCRIPT_DIR + "/fort.js");
//
// a castle is just a big wide fort with 4 taller forts at each corner
//
function castle (side, height, drone)
{
	 // 
	 // use sensible default parameter values
	 // if no parameters are supplied
	 //
	 if (typeof drone == "undefined")
		  drone = new Drone();
	 if (typeof side == "undefined")
		  side = 24;
	 if (typeof height == "undefined")
		  height = 10;
	 if (height < 8 || side < 20)
		  throw new java.lang.RuntimeException("Castles must be at least 20 wide X 8 tall");
	 //
	 // remember where the drone is so it can return 'home'
	 //
	 drone.chkpt('castle');
	 // 
	 // how big the towers at each corner will be...
	 //
	 var towerSide = 10;
	 var towerHeight = height+4;

	 //
	 // the main castle building will be front and right of the first tower
	 //
	 drone.fwd(towerSide/2).right(towerSide/2);
	 //
	 // the castle is really just a big fort with 4 smaller 'tower' forts at each corner
	 //
	 drone = fort(side,height,drone);
	 //
	 // move back to start position
	 //
	 drone.move('castle');
	 //
	 // now place 4 towers at each corner (each tower is another fort)
	 //
	 for (var corner = 0; corner < 4; corner++)
	 {
		  // construct a 'tower' fort
		  fort(towerSide,towerHeight,drone); 
		  // move forward the length of the castle then turn right
		  drone.fwd(side+towerSide-1).turn(); 
	 }
	 return drone.move('castle');
}