輪廻転生（Metempsychosis）
BitmapDataを使った描画の練習。
インタラクションは何もありません。
/**
* Copyright mousepancyo ( http://wonderfl.net/user/mousepancyo )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/1xhK
*/
package{
import flash.display.Sprite;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.Event;
import flash.filters.GlowFilter;
import flash.geom.ColorTransform;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.geom.Matrix;
import net.hires.debug.Stats;
[SWF(width=465, height=465, backgroundColor=0, frameRate=60)]
public class Main extends Sprite{
private const W:int = 465;
private const H:int = 465;
private var _pointList:Vector.<Point>;
private var _pointNum:Number = 1000;
private var _count:Number = 0;
private var _circleBmd:BitmapData;
private var _bmd:BitmapData;
private var _bm:Bitmap;
private var _copyBmd:BitmapData;
private var _copyBm:Bitmap;
private var _ct:ColorTransform;
private var _particleList:Vector.<Particle>;
private var _particleBmdList:Vector.<BitmapData>;
public function Main(){
graphics.beginFill(0)
graphics.drawRect(0, 0, W, H)
graphics.endFill()
//
_circleBmd = new BitmapData(100, 100, true, 0);
_bmd = new BitmapData(465, 465, false, 0);
_ct = new ColorTransform(.9, .9, .9, 1);
_pointList = new Vector.<Point>;
//
setup()
addChild(_bm);
addChild(_copyBm);
addEventListener(Event.ENTER_FRAME, draw);
addChild(new Stats());
}
private function setup():void{
var circle:Circle = new Circle(12, 50);
circle.filters = [new GlowFilter(0xFFFFFF, 1, 10, 10, 1, 3, false, true)];
_circleBmd.draw(circle);
for(var i:Number = 0; i < _pointNum; i++){
var p:Point = new Point();
_pointList.push(new Point());
var r:Number = i * 2 * Math.PI * ((1 + Math.sqrt(6)) / 2);
_pointList[i].x = W / 2 + (i * .3) * Math.cos(r);
_pointList[i].y = H / 2 + (i * .3) * Math.sin(r);
}
_bm = new Bitmap(_bmd, "auto", true)
_copyBmd = _bmd.clone();
_copyBm = new Bitmap(_copyBmd);
_copyBm.blendMode = "multiply";
}
private function draw(e:Event):void{
if(_count >= _pointNum){
createPeace();
_count = 0;
}else{
_copyBmd.lock();
_copyBmd.copyPixels(_bmd, _bmd.rect, new Point());
_bmd.lock();
_bmd.copyPixels(_circleBmd, _circleBmd.rect, new Point(_pointList[_count].x-50, _pointList[_count].y-50));
_bmd.colorTransform(_bmd.rect, _ct);
_copyBmd.unlock();
_bmd.unlock();
_count++;
}
colorChange();
}
private function colorChange():void{
(_ct.redMultiplier > 1.01)? _ct.redMultiplier = (Math.random() * .05 + .987) : _ct.redMultiplier += .001;
(_ct.greenMultiplier > 1.01)? _ct.greenMultiplier = (Math.random() * .05 + .987) : _ct.greenMultiplier += .001;
(_ct.blueMultiplier > 1.01)? _ct.blueMultiplier = (Math.random() * .05 + .987) : _ct.blueMultiplier += .001;
}
//Break
private function createPeace():void{
var image:BitmapData = _bmd.clone();
_particleList = new Vector.<Particle>;
_particleBmdList = new Vector.<BitmapData>;
//
for(var i:int=0; i<93; i++){
for(var j:int=0; j<93; j++){
var bmd:BitmapData = new BitmapData(5, 5, true);
bmd.copyPixels(image, new Rectangle(j * 5, i * 5, 5, 5), new Point(0, 0));
//
var bm:Particle = new Particle(bmd);
var radius:Number = Math.sqrt(Math.random()) * 10;
var angle:Number = Math.random() * (Math.PI) * 2;
bm.x = j * 5;
bm.y = i * 5;
bm.homeX = bm.x;
bm.homeY = bm.y;
bm.vx = Math.cos(angle) * radius;
bm.vy = Math.sin(angle) * radius;
addChild(bm);
//
_particleList.push(bm);
_particleBmdList.push(bmd);
}
}
//
image.dispose()
addEventListener(Event.ENTER_FRAME, update);
}
private function update(e:Event):void{
_bmd.lock();
_bmd.colorTransform(_bmd.rect, new ColorTransform(.99, .99, .99))
_bmd.unlock();
//
var n:int = _particleList.length;
while (n--) {
var v:Number = Math.random() * .5 + .8;
var p:Particle = _particleList[n];
p.vy += .5;
p.vx *= v * .95;
p.vy *= v;
p.x += p.vx;
p.y += p.vy;
//
if(p.x < -100 || p.x > W + 100 || p.y < -100 || p.y > H * 2){
removeChild(_particleList[n]);
_particleBmdList[n].dispose();
_particleList[n] = null
_particleList.splice(n, 1);
if(_particleList.length == 0){
removeEventListener(Event.ENTER_FRAME, update);
}
}
}
}
}
}
//Circle
import flash.display.Sprite;
import flash.display.Shape;
class Circle extends Sprite{
public function Circle(r:int, ofset:int){
var sp:Shape = new Shape();
sp.x = ofset;
sp.y = ofset;
addChild(sp);
sp.graphics.beginFill(0xFFFFFF);
sp.graphics.drawCircle(0,0,r);
sp.graphics.endFill();
}
}
//Particle
import flash.display.Bitmap;
import flash.display.BitmapData;
class Particle extends Bitmap{
public var homeX:Number = 0;
public var homeY:Number = 0;
public var vx:Number = 0;
public var vy:Number = 0;
public function Particle(bmd:BitmapData, snap:String = "auto", somooth:Boolean = false){
super(bmd, snap, somooth);
}
}