package{
  import flash.display.Sprite;
  public class Puu4 extends Sprite{
     public function Puu4(){
	   joonista();
	   y=50;
	   x=200;
	 }
	 
	 public function leiaOts(algx:Number, algy:Number, vx:Number, vy:Number, 
	    koef:Number, nurk:Number):Array{
	      var rvx:Number=vy;
		  var rvy:Number=-vx;
		  var otsx:Number=algx+Math.cos(nurk)*vx*koef+Math.sin(nurk)*rvx*koef;
		  var otsy:Number=algy+Math.cos(nurk)*vy*koef+Math.sin(nurk)*rvy*koef;
		  return new Array(otsx, otsy);
	 }
	 
	 
	 public function joonistaOks(x1:Number, y1:Number, x2:Number, y2:Number):void{
	    graphics.moveTo(x1, y1);
		graphics.lineTo(x2, y2);
		var vektorx:Number=x2-x1;
		var vektory:Number=y2-y1;
		if(Math.sqrt(vektorx*vektorx+vektory*vektory)>5){
		  var v:Array=leiaOts(x2, y2, vektorx, vektory, 0.8, Math.PI/8);
  		  joonistaOks(x2, y2, v[0], v[1]);
		  v=leiaOts(x2, y2, vektorx, vektory, 0.5, -Math.PI/6);
  		  joonistaOks(x2, y2, v[0], v[1]);
		}
	 }
	 
     public function joonista():void{
	   graphics.clear();
	   graphics.lineStyle(1, 0, 1); //paksus, värv, nähtavus
	   joonistaOks(100, 200, 110, 150);
	 }
  }
}