forked from: forked from: forked from: Fire
// forked from zappa's forked from: forked from: Fire
// forked from sketchbookgames's forked from: Fire
// forked from Saqoosha's Fire
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.DisplayObject;
import flash.display.Loader;
import flash.display.LoaderInfo;
import flash.display.Sprite;
import flash.display.StageQuality;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filters.ColorMatrixFilter;
import flash.filters.ConvolutionFilter;
import flash.geom.ColorTransform;
import flash.geom.Point;
import flash.system.LoaderContext;
import flash.net.SharedObject;
import flash.net.URLRequest;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import net.hires.debug.Stats;
[SWF(width=465, height=465, backgroundColor=0x0, frameRate=30)]
public class Fire extends Sprite {
private static const ZERO_POINT:Point = new Point();
private var _fireColor:BitmapData;
private var _currentFireColor:int;
private var _canvas:Sprite;
private var _grey:BitmapData;
private var _spread:ConvolutionFilter;
private var _cooling:BitmapData;
private var _color:ColorMatrixFilter;
private var _offset:Array;
private var _fire:BitmapData;
private var _palette:Array;
private var _zeroArray:Array;
public function Fire() {
this.stage.scaleMode = StageScaleMode.NO_SCALE;
this.stage.quality = StageQuality.LOW;
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, this._onLoaded);
loader.load(new URLRequest('http://saqoosha.net/lab/Moyasu/srcview/source/fire-color.png'), new LoaderContext(true));
}
private function _onLoaded(e:Event):void {
this._fireColor = Bitmap(LoaderInfo(e.target).loader.content).bitmapData;
this._canvas = new Sprite();
this._canvas.graphics.beginFill(0x0, 0);
this._canvas.graphics.drawRect(0, 0, 465, 465);
this._canvas.graphics.endFill();
this._canvas.addChild(this._createEmitter());
this._grey = new BitmapData(465, 465, false, 0x0);
this._spread = new ConvolutionFilter(3, 3, [0, 1, 0, 1, 1, 1, 0, 1, 0], 5);
this._cooling = new BitmapData(465, 465, false, 0x0);
this._offset = [new Point(), new Point()];
this._fire = new BitmapData(465, 465, false, 0x0);
this.addChild(new Bitmap(this._fire));
var _stats:Stats = new Stats();
_stats.x = 395 - _stats.width;
this.addChild( _stats );
this._createCooling(0.16);
this._createPalette(this._currentFireColor = 0);
this.addEventListener(Event.ENTER_FRAME, this._update);
this.stage.addEventListener(MouseEvent.CLICK, this._onClick);
}
private function _onClick(e:MouseEvent):void {
if (++this._currentFireColor == int(this._fireColor.height / 32)) {
this._currentFireColor = 0;
}
this._createPalette(this._currentFireColor);
}
private function _createEmitter():DisplayObject {
var tf:TextField = new TextField();
tf.selectable = false;
tf.autoSize = TextFieldAutoSize.LEFT;
tf.defaultTextFormat = new TextFormat('Verdana', 60, 0xffffff, true);
tf.text = 'HearthWares';
tf.x = (465 - tf.width) / 2;
tf.y = (465 - tf.height) / 2;
return tf;
}
private function _createCooling(a:Number):void {
this._color = new ColorMatrixFilter([
a, 0, 0, 0, 0,
0, a, 0, 0, 0,
0, 0, a, 0, 0,
0, 0, 0, 1, 0
]);
}
private function _createPalette(idx:int):void {
this._palette = [];
this._zeroArray = [];
for (var i:int = 0; i < 256; i++) {
this._palette.push(this._fireColor.getPixel(i, idx * 32));
this._zeroArray.push(0);
}
}
private function _update(e:Event):void {
this._grey.draw(this._canvas);
this._grey.applyFilter(this._grey, this._grey.rect, ZERO_POINT, this._spread);
this._cooling.perlinNoise(50, 50, 2, 982374, false, false, 0, true, this._offset);
this._offset[0].x += 2.0;
this._offset[1].y += 2.0;
this._cooling.applyFilter(this._cooling, this._cooling.rect, ZERO_POINT, this._color);
this._grey.draw(this._cooling, null, null, BlendMode.SUBTRACT);
this._grey.scroll(0, -3);
this._fire.paletteMap(this._grey, this._grey.rect, ZERO_POINT, this._palette, this._zeroArray, this._zeroArray, this._zeroArray);
}
}
}