Emotion Fractal in AS3

December 21th, 2008

original by jtarbell: Levitated | Emotion Fractal

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source:

package {
	import flash.display.*;
	import flash.events.*;
	import flash.geom.*;
	import flash.net.*;
	import flash.text.*;
	import flash.ui.*;
	import caurina.transitions.Tweener;
	import caurina.transitions.properties.TextShortcuts;
	import com.adobe.serialization.json.JSON;

	[SWF(backgroundColor="#000000", frameRate=30)] 

	public class EmotionFractal extends Sprite {

		private var queue:Array;
		private var words:Array;
		private var fonts:Array = ["Times", "Helvetica", "Didot", "COM4t Fine Regular", "OLDNEW Axis", 
		                           "Maximum Line Speeder", "GtinformatAL", "NihonbashiAL"];

		[Embed(systemFont="Times", fontName="Times", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font1:Class;
		[Embed(systemFont="Helvetica", fontName="Helvetica", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font2:Class;
		[Embed(systemFont="Didot", fontName="Didot", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font3:Class;
		[Embed(source="COM4F_RG.TTF", fontName="COM4t Fine Regular", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font4:Class;
		[Embed(source="OLDNEW_A.TTF", fontName="OLDNEW Axis", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font5:Class;
		[Embed(source="MAXI_L_S.TTF", fontName="Maximum Line Speeder", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font6:Class;
		[Embed(source="GTINA___.TTF", fontName="GtinformatAL", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font7:Class;
		[Embed(source="NIHOA___.TTF", fontName="NihonbashiAL", unicodeRange="U+0041-U+005A", mimeType="application/x-font")]
		private var font8:Class;

		public function EmotionFractal() {
			stage.align = StageAlign.TOP_LEFT;
			stage.scaleMode = StageScaleMode.NO_SCALE;

			var loader:URLLoader = new URLLoader();
			loader.addEventListener(Event.COMPLETE, loadingComplete);
			loader.load(new URLRequest("/misc/emotion.json"));
		}

		public function loadingComplete(e:Event):void {
			var json:String = URLLoader(e.currentTarget).data;
			words = JSON.decode(json);

			TextShortcuts.init();
			init();
			addEventListener(MouseEvent.MOUSE_DOWN, init);
			stage.addEventListener(FullScreenEvent.FULL_SCREEN, init);

			var menu:ContextMenu = new ContextMenu();
			var item:ContextMenuItem = new ContextMenuItem("Full Screen");
			contextMenu = menu;
			menu.hideBuiltInItems();
			menu.customItems.push(item);
			menu.addEventListener(ContextMenuEvent.MENU_SELECT, function(e:ContextMenuEvent):void {
				switch (stage.displayState) {
					case "normal":
						item.enabled = true;
						break;
					case "fullScreen":
						item.enabled = false;
						break;
				}
			});
			item.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function(e:ContextMenuEvent):void {
				stage.displayState = "fullScreen";
			});
		}

		public function init(...args):void {
			Tweener.removeAllTweens();
			while (numChildren) removeChildAt(0);
			queue = [new Rectangle(0, 0, stage.stageWidth, stage.stageHeight)];
			addEventListener(Event.ENTER_FRAME, fill);
		}

		public function fill(e:Event):void {
			var i:int = 0;
			while (queue.length > 0 && i < 3) {
				var rect:Rectangle = queue.pop();
				if (rect.width > 2 && rect.height > 2) {
					fillRegion(rect);
					i++;
				}
			}
			if (!queue.length) removeEventListener(Event.ENTER_FRAME, fill);
		}

		public function fillRegion(region:Rectangle):void {
			var tf:TextField = new TextField();
			var fmt:TextFormat = new TextFormat();
			fmt.font = choice(fonts);
			fmt.size = 24;
			fmt.letterSpacing = -0.3;
			fmt.rightMargin = 0.3;
			tf.defaultTextFormat = fmt;
			tf.text = choice(words).toUpperCase();
			tf.autoSize = "left";
			tf.embedFonts = true;
			tf.selectable = false;

			var bitmap:BitmapData = new BitmapData(tf.width, tf.height, true);
			bitmap.draw(tf);
			var bound:Rectangle = bitmap.getColorBoundsRect(0xFFFFFFFF, 0xFFFFFFFF, false);
			bitmap.dispose();

			var s:Number = region.width / bound.width * (Math.random() * 0.3 + 0.1);
			if (bound.height * s > region.height) s = region.height / bound.height;
			tf.scaleX = s;
			tf.scaleY = s;
			bound.x *= s;
			bound.y *= s;
			bound.width  *= s;
			bound.height *= s;

			switch (choice([1,2,3,4])) {
				case 1:
					tf.x = region.x - bound.x;
					tf.y = region.y - bound.y;
					queue.push(
						new Rectangle(region.x + bound.width, region.y, region.width - bound.width, bound.height),
						new Rectangle(region.x, region.y + bound.height, region.width, region.height - bound.height)
					);
					break;
				case 2:
					tf.x = region.x - bound.x;
					tf.y = region.bottom - bound.bottom;
					queue.push(
						new Rectangle(region.x + bound.width, region.bottom - bound.height, region.width - bound.width, bound.height),
						new Rectangle(region.x, region.y, region.width, region.height - bound.height)
					);
					break;
				case 3:
					tf.x = region.right - bound.right;
					tf.y = region.y - bound.y;
					queue.push(
						new Rectangle(region.x, region.y, region.width - bound.width, bound.height),
						new Rectangle(region.x, region.y + bound.height, region.width, region.height - bound.height)
					);
					break;
				case 4:
					tf.x = region.right - bound.right;
					tf.y = region.bottom - bound.bottom;
					queue.push(
						new Rectangle(region.x, region.bottom - bound.height, region.width - bound.width, bound.height),
						new Rectangle(region.x, region.y, region.width, region.height - bound.height)
					);
					break;
			}

			addChild(tf);
			Tweener.addTween(tf, {_text_color: 0xFFFFFF, time: 5, transition: "liner"});
		}

		private function choice(ary:Array):* {
			return ary[Math.floor(ary.length * Math.random())];
		}

	}
}

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