BitmapData
wonderflæ¬P171
/**
* Copyright kotaro_tan ( http://wonderfl.net/user/kotaro_tan )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/ndYt
*/
package {
import flash.filters.GlowFilter;
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.BitmapDataChannel;
import flash.geom.Matrix;
import flash.geom.ColorTransform;
import flash.geom.Point;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filters.BlurFilter;
import flash.filters.GlowFilter;
import flash.filters.DisplacementMapFilter;
[SWF(width = 465, height = 465, backgroundColor = 0x000000, frameRate = 30)]
public class BitmapDataSample extends Sprite {
private var bmpData:BitmapData;
private var _sp:Sprite;
private var matrix:Matrix;
private var colortrans:ColorTransform;
private var bmpcolortrans:ColorTransform;
//private var filter:BlurFilter;
private var filter:DisplacementMapFilter;
public function BitmapDataSample() {
bmpData = new BitmapData(465, 465, false, 0x000000);
addChild(new Bitmap(bmpData));
_sp = newFig(0, 0, 40, 0xFFFFFF);
matrix = new Matrix();
colortrans = new ColorTransform();
bmpcolortrans = new ColorTransform(0.99, 0.99, 0.999);
//filter = new BlurFilter(2, 2, 1);
var mapBitmap:BitmapData = new BitmapData(465, 465, false, 0x000000);
var mapPoint:Point = mapBitmap.rect.topLeft;
var comX:uint = BitmapDataChannel.RED;
var comY:uint = BitmapDataChannel.GREEN;
var scaleX:Number = 256;
var scaleY:Number = 256;
var r:uint = 128 + 2;
var g:uint = 128 + 1;
var b:uint = 128;
var col:uint = r << 16 | g << 8 | b;
mapBitmap.fillRect(mapBitmap.rect, col);
filter = new DisplacementMapFilter(mapBitmap, mapPoint, comX, comY, scaleX, scaleY);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
stage.addEventListener(MouseEvent.CLICK, reset);
}
private function onEnterFrame(e:Event):void {
matrix.identity();
var s:Number = Math.random() * 2;
matrix.scale(s, s);
matrix.rotate(Math.PI * Math.random());
matrix.translate(mouseX, mouseY);
colortrans.greenMultiplier = mouseX / 465;
colortrans.blueMultiplier = mouseY / 465;
colortrans.alphaMultiplier = Math.random();
bmpData.colorTransform(bmpData.rect, bmpcolortrans);
bmpData.applyFilter(bmpData, bmpData.rect, bmpData.rect.topLeft, filter);
bmpData.draw(_sp, matrix, colortrans, BlendMode.ERAS);
}
private function reset(e:MouseEvent):void {
bmpData.fillRect(bmpData.rect, 0xFF000000);
}
private function newFig(cx:Number, cy:Number, size:Number, col:uint):Sprite {
var sp:Sprite = new Sprite;
sp.graphics.lineStyle(0, 0x000000, 0.3);
sp.graphics.beginFill(col);
sp.graphics.drawCircle(cx, cy, size * 0.5);
sp.graphics.drawCircle(cx, cy, size * 0.4);
var w:Number = size * 0.6;
var h:Number = size * 0.15;
sp.graphics.drawRect(cx - w / 2, cy - h / 2, w, h);
sp.filters = [new BlurFilter(2, 2, 1)];
sp.graphics.endFill();
return sp;
}
}
}