forked from: この木なんの木 ランダム化
// forked from undo's この木なんの木キモい木
package
{
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.geom.Point;
[SWF(width='465',height='465')]
public class Test extends Sprite
{
private var _omegaBase:Number = Math.PI/5;//枝の開き具合
private var _devPerBase:Number = 1/4;//枝が開くまでの長さ
private var _devideTime:int = 10;//枝わかれする回数 15くらいを超えると重いよ！
public function Test()
{
addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(evt:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
this.stage.align = StageAlign.TOP_LEFT;
this.stage.scaleMode = StageScaleMode.NO_SCALE;
//this.graphics.lineStyle(0,0);
drawLine(new Point(230,350),new Point(230,50), this._devideTime);
}
private function drawLine(pa:Point, pb:Point, devide:int):void
{
var _omega:Number = this._omegaBase * Math.random();
var _devPer:Number = this._devPerBase * Math.random();
this.graphics.lineStyle(devide, Math.random()*0xffffff);
this.graphics.moveTo(pa.x,pa.y);
var def:Point = new Point(pb.x-pa.x,pb.y-pa.y);
this.graphics.lineTo(pa.x + def.x*_devPer,pa.y + def.y*_devPer);
if(devide != 0)
{
var radian:Number = Math.atan2(def.y, def.x);
var radius:Number = Math.sqrt(def.x*def.x*(1-_devPer)*(1-_devPer) + def.y*def.y*(1-_devPer)*(1-_devPer));
this.drawLine(new Point(pa.x + def.x*_devPer,pa.y + def.y*_devPer),new Point(pa.x + def.x*_devPer + Math.cos(radian+_omega)*radius, pa.y + def.y*_devPer + Math.sin(radian+_omega)*radius),devide-1);
this.drawLine(new Point(pa.x + def.x*_devPer,pa.y + def.y*_devPer),new Point(pa.x + def.x*_devPer + Math.cos(radian-_omega)*radius, pa.y + def.y*_devPer + Math.sin(radian-_omega)*radius),devide-1);
}
}
}
}