View difference between Paste ID: V63P48ii and CWPxekCw

 package  {
 
 public class LeaderFlocker extends Flocker{
 //The constructor class for the LeaderFlocker fish, which is programmed to swim in a figure-eight formation and avoid the other fish.
 //Passes in a reference to the flock manager class, and the current x and y coordinates, and well as the speed of the fish.
 public function LeaderFlocker(aMan:Manager, aX:Number=0, aY:Number=0, aSpeed:Number=0 )
 {
 	super(aMan, aX, aY, aSpeed);
 	aMan.addChild(this);
 }
 
 //Calculates the Vector force every frame for guiding the fish.
 package  {
 
 	public class LeaderFlocker extends Flocker{
 		//The constructor class for the LeaderFlocker fish, which is programmed to swim in a figure-eight formation and avoid the other fish.
 		//Passes in a reference to the flock manager class, and the current x and y coordinates, and well as the speed of the fish.
 		public function LeaderFlocker(aMan:Manager, aX:Number=0, aY:Number=0, aSpeed:Number=0 )
 		{
 			super(aMan, aX, aY, aSpeed);
 			aMan.addChild(this);
 		}
 
 		//Calculates the Vector force every frame for guiding the fish.
 		override protected function calcSteeringForce( ):Vector2{
 			//the initial blank Vector to be eventually returned.
 			var steeringForce:Vector2 = new Vector2( );
 
 			//When the user clicks the screen, the seekingfoodpoint boolean is set to true, which overrides main steering force to simply move
 			//towards the point that was clicked.
 			if(seekingfoodpoint){
 				//the arrival() method calculates the direction towards the spot that was clicked, and has the fish slow down as
 				//the fish gets closer to the spot that was clicked, until eventually the fish reaches the point, which sets
 				//seekingfoodpoint to false.
 				steeringForce = steeringForce.add(arrival().multiply(500));
 
 			}
 			//the fish is not seeking food, and will swim around normally.
 			else{
 				//adds the flowfield steering force, which makes the fish move in the figure-eight formation
 				steeringForce=steeringForce.add(flowField().multiply((500)));
 
 				//if the fish is in danger of moving off of the screen, then reverse the steering force
 				//so that the fish does not move off-screen.
 				if((this.x<150 && steeringForce.x<0) || (this.x>770 && steeringForce.x>0))
 					steeringForce=new Vector2(-steeringForce.x,steeringForce.y);
 				if((this.y<200 && steeringForce.y<0) || (this.y>620 && steeringForce.y>0))
 					steeringForce=new Vector2(steeringForce.x,-steeringForce.y);
 			}
 
 			//if the force associated with the separation of fishes is present (which it normally is not unless other fish are
 			//very close) then add this force to the steeringForce.
 			var v:Vector2=separation();
 			if((v.x!=0 && v.y!=0) ){
 				steeringForce = steeringForce.add(separation().multiply(500));
 			}
 			return steeringForce;
 		}
 
 		//This function is responsible for the figure-eight direction that the koi generally moves in.
 		public function flowField():Vector2{
 			var futurePosition:Vector2;
 			var flowdir:Vector2;
 			//the flowField method is divided into 3 sections, based on where the fish is horizontally.
 
 			//if the fish has an s value of less than 400, then a spot slightly ahead of the fish is found. We then calculate
 			//where that point is relative to a point near the middle of the screen and off to the left a little.
 			//this vector is rotated 90 degrees to get a vector that turns the fish slowly around the
 			//point near the middle of the screen in a counterclockwise direction.
 			if(this.x< 400){
 				futurePosition = position.add(fwd.multiply(speed*.1));
 				flowdir= futurePosition.subtract(new Vector2(600,400));
 				flowdir=flowdir.perpRight();
 				flowdir.normalize();
 				return flowdir;
 			}
 
 			//if the fish is near the middle of the screen, the vector returned will be in a diagonal direction depending upon
 			//the fish's horizontal velocity. If the fish is moving to the right, the fish will keep moving right and downward.
 			//If it is going left, the fish will move left and downward.
 			else if(this.x>=400 && this.x<600){
 				if(fwd.x>0)
 					return new Vector2(.333,.9);
 				else
 					return new Vector2(-.333,.9);
 			}
 			//if the fish is far to the right, there is a similar idea from when the fish is far to the left, except since
 			//the fish is on the opposite end, the fish will be turning in the opposite direction.
 			else{
 				futurePosition = position.add(fwd.multiply(speed*.1));
 				flowdir= futurePosition.subtract(new Vector2(400,400));
 				flowdir=flowdir.perpRight().perpRight().perpRight();
 				flowdir.normalize();
 				return flowdir;
 			}
 		}
 	}
 }