forked from: spiral
spiral
@author jc at bk-zen.com
/**
* Copyright nemu90kWw ( http://wonderfl.net/user/nemu90kWw )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/fTvR
*/
// forked from bkzen's spiral
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
/**
* spiral
* @author jc at bk-zen.com
*/
[SWF (backgroundColor = "0x000000", frameRate = "30", width = "465", height = "465")]
public class Test54 extends Sprite
{
private var bmd: BitmapData;
private var colorTf: ColorTransform;
private var drawMtarix: Matrix;
private var texts: Array = [];
private var textField: TextField;
private var cnt: int;
public function Test54()
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(event: Event = null): void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
//
graphics.beginFill(0x000000);
graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
addChild(new Bitmap(bmd = new BitmapData(465, 465, false, 0), "auto", true));
textField = new TextField();
textField.autoSize = TextFieldAutoSize.LEFT;
textField.defaultTextFormat = new TextFormat("_sans", 40, 0xFFFFFF);
colorTf = new ColorTransform(0.98, 0.98, 1, 1, -1, -1, -1);
drawMtarix = new Matrix();
var i: uint, n: uint = 10;
for (i = 0; i < n; i++)
{
texts[i] = new Text();
textField.text = String.fromCharCode(Math.random() * 26 + 65 + (Math.random() < 0.5 ? 0 : 32));
texts[i].init(textField, i / n * 400 + 32, Math.random() * 232 + 232, (Math.random() - 0.5) * 0.05 );
}
texts.sortOn("y", Array.NUMERIC);
addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(event:Event):void
{
bmd.lock();
var i: uint, n: uint = texts.length;
for (i = 0; i < n; i++)
{
drawMtarix.a = drawMtarix.d = 1;
drawMtarix.b = drawMtarix.c = drawMtarix.tx = drawMtarix.ty = 0;
var t: Text = texts[i];
drawMtarix.translate(- t.w / 2, - t.h / 2);
drawMtarix.rotate(t.rad);
drawMtarix.scale(1, 0.7);
drawMtarix.translate(t.x, t.y);
t.y -= 0.5, t.rad += t.vr;
bmd.draw(t.bmd, drawMtarix, null, null, null, true);
if (t.y < -20)
{
textField.text = String.fromCharCode(Math.random() * 26 + 65 + (Math.random() < 0.5 ? 0 : 32));
t.init(textField, Math.random() * 465, Math.random() * 100 + 365, (Math.random() - 0.5) * 0.05 );
}
}
bmd.colorTransform(bmd.rect, colorTf);
bmd.unlock();
}
}
}
import flash.display.BitmapData;
import flash.filters.DropShadowFilter;
import flash.geom.Matrix;
import flash.text.TextField;
class Text
{
public var x: Number = 0, y: Number = 0;
public var w: Number = 0, h: Number = 0;
public var rad: Number = 0, vr: Number = 0;
public var bmd: BitmapData;
private static const effect: DropShadowFilter = new DropShadowFilter(0, 45, 0x00FFFF, 1, 2, 2, 100);
function Text() { }
public function init(textField: TextField, x: Number, y: Number, vr: Number): void
{
this.x = x, this.y = y, this.vr = vr;
w = textField.width * 1.5, h = textField.height * 1.5;
if (bmd) bmd.dispose();
bmd = new BitmapData(w, h, true, 0);
bmd.lock();
bmd.draw(textField, new Matrix(1, 0, 0, 1, (w - textField.width) / 2, (h - textField.height) / 2));
bmd.applyFilter(bmd, bmd.rect, bmd.rect.topLeft, effect);
}
}