flash on 2010-6-17
package {
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.Matrix;
import flash.geom.ColorTransform;
import flash.display.BlendMode;
import flash.filters.BlurFilter;
import flash.events.Event;
import flash.events.MouseEvent;
[SWF(width = 465, height = 465, backgroundColor = 0, frameRate = 30)]
public class BitmapDateSample7 extends Sprite {
private var bmpdata:BitmapData;
private var sprite:Sprite;
private var matrix:Matrix;
private var colortrans:ColorTransform;
private var filter:BlurFilter;
public function BitmapDateSample7() {
//Bitmapデータを作成して表示リストに追加
bmpdata = new BitmapData(465, 465, false, 0);
addChild(new Bitmap(bmpdata));
//グラフィックの作成
sprite = newFig(0, 0, 40, 0xffffff);
//Matrix,ColorTransformの初期化
matrix = new Matrix();
colortrans = new ColorTransform();
//エフェクトの初期化
filter = new BlurFilter(2, 2, 1);
//イベント
addEventListener(Event.ENTER_FRAME, enterframe);
stage.addEventListener(MouseEvent.CLICK, reset);
}
private function enterframe(e:Event):void {
bmpdata.applyFilter(bmpdata, bmpdata.rect, bmpdata.rect.topLeft, filter);
//変形
matrix.identity();
var s:Number = Math.random() * 2;
matrix.scale(s, s);
matrix.rotate(Math.PI * Math.random());
matrix.translate(mouseX, mouseY);
//色変換
colortrans.greenMultiplier = mouseX / 465;
colortrans.blueMultiplier = mouseY / 465;
colortrans.alphaMultiplier = Math.random();
//BitmapDateへ描画
bmpdata.draw(sprite, matrix, colortrans, BlendMode.ADD);
}
private function reset(e:MouseEvent):void {
bmpdata.fillRect(bmpdata.rect, 0xff000000);
}
private function newFig(cx:Number, cy:Number, size:Number, col:uint):Sprite {
//中心<cx,cy)幅高さsize色colのグラフィックを作成
var shape:Sprite = new Sprite();
shape.graphics.lineStyle(0, 0x000000, 0.3);
shape.graphics.beginFill(col);
shape.graphics.drawCircle(cx, cy, size * 0.5);
shape.graphics.drawCircle(cx, cy, size * 0.4);
var w:Number = size * 0.6;
var h:Number = size * 0.15;
shape.graphics.drawRect(cx - w / 2, cy - h / 2, w, h);
shape.graphics.endFill();
return shape;
}
}
}