forked from: Smoky text forked from: adobe challenge 1
/**
* Copyright hacker_dbsa6k8g ( http://wonderfl.net/user/hacker_dbsa6k8g )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/2tbS
*/
// forked from keim_at_Si's Smoky text forked from: adobe challenge 1
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.filters.*;
[SWF(backgroundColor='#ffffff', frameRate='60')]
public class main extends Sprite {
private const FB:Number = 0.98;
private var smokeField:Sprite = new Sprite();
private var screen:BitmapData = new BitmapData(465, 465, false, 0);
private var feedback:ColorTransform = new ColorTransform(FB, FB, FB, 1);
private var blur:BlurFilter = new BlurFilter(2, 2);
private var text1:SmokyText = new SmokyText(232, 160, 0, "aaaa", 70, 0x404060, false);
private var text2:SmokyText = new SmokyText(232, 320, 0, "click to disappear", 30, 0x404060, false);
private var text3:SmokyText = new SmokyText(232, 350, 0, "and type to appear", 18, 0x404060, false);
function main() {
SmokyText.forceField.perlinNoise(465, 465, 4, Math.random()*10000, true, true);
smokeField.addChild(text1);
smokeField.addChild(text2);
smokeField.addChild(text3);
addEventListener("enterFrame", _onEnterFrame);
stage.addEventListener("keyDown", _onKeyDown);
stage.addEventListener("click", function(e:Event) : void { text3.isPlaying = text2.isPlaying = text1.isPlaying = true; });
addChild(new Bitmap(screen));
}
private function _onKeyDown(e:KeyboardEvent) : void {
if (smokeField.numChildren < 5) {
smokeField.addChild(new SmokyText(r(200,232), r(200,232), r(180,-90), String.fromCharCode(e.keyCode), 70, 0x404060));
}
}
private function _onEnterFrame(e:Event) : void {
screen.colorTransform(screen.rect, feedback);
screen.applyFilter(screen, screen.rect, screen.rect.topLeft, blur);
screen.draw(smokeField, null, null, "add");
}
private function r(range:Number, offset:Number) : Number {
return (Math.random()-Math.random()) * range + offset;
}
}
}
import flash.display.*;
import flash.text.*;
import flash.events.*;
import flash.geom.*;
import flash.filters.*;
class SmokyText extends Shape {
static public const FORCE:Number = 0.5;
static public const ATTEN:Number = 0.99;
static public var forceField:BitmapData = new BitmapData(465, 465, false, 0);
static public var blur:BlurFilter = new BlurFilter(1, 2);
public var source:BitmapData;
public var vel:Vector.<Number> = new Vector.<Number>();
public var vtx:Vector.<Number> = new Vector.<Number>();
public var idx:Vector.<int> = new Vector.<int>();
public var uvt:Vector.<Number> = new Vector.<Number>();
public var isPlaying:Boolean = true;
function SmokyText(x:Number, y:Number, rotation:Number, text:String, size:int=70, color:int=0xffffff, isPlaying:Boolean=true) {
var tf:TextField = new TextField();
tf.autoSize = "left";
tf.htmlText = "<font size='"+String(size)+"' color='#"+color.toString(16)+"' face='_selif'>"+text+"</font>";
source = new BitmapData(tf.width+32, tf.height+32, true, 0);
source.draw(tf, new Matrix(1,0,0,1,16,16));
var dv:Number=6, idv:Number=1/dv, u:int, v:int, i:int;
vel.length = uvt.length = vtx.length = (dv+1)*(dv+1)*2;
idx.length = dv*dv*6;
for (i=0, u=0; u<=dv; u++) for (v=0; v<=dv; v++) {
vtx[i] = ((uvt[i]=u*idv)-0.5) * source.width;
vel[i++] = 0;
vtx[i] = ((uvt[i]=v*idv)-0.5) * source.height;
vel[i++] = 0;//(v*idv-1)*0.5;
}
for (i=0, u=0; u<dv; u++) for (v=0; v<dv; v++, i+=6) {
idx[i+3]=(idx[i+4]=idx[i+2]=(idx[i+5]=idx[i+1]=(idx[i]=v*(dv+1)+u)+1)+dv)+1;
}
this.rotation = rotation;
this.x = x;
this.y = y;
this.isPlaying = isPlaying;
alpha = 1;
addEventListener("enterFrame", _onEnterFrame);
}
private function _onEnterFrame(e:Event) : void {
if (isPlaying) {
source.applyFilter(source, source.rect, source.rect.topLeft, blur);
_updateVertex();
alpha *= ATTEN;
}
graphics.clear();
graphics.beginBitmapFill(source);
graphics.drawTriangles(vtx, idx, uvt);
graphics.endFill();
if (alpha < 0.01) {
removeEventListener("enterFrame", _onEnterFrame);
parent.removeChild(this);
}
}
private function _updateVertex() : void {
var i:int, imax:int = vtx.length;
for (i=0; i<imax; i+=2) {
var x:Number=vtx[i]+this.x, y:Number=vtx[i+1]+this.y;
var c:uint = forceField.getPixel(x, y);
vtx[i] = x + (vel[i] += (((c&255) * 0.00390625) - 0.5) * FORCE)*0.2 - this.x;
vtx[i+1] = y + (vel[i+1] += ((((c>>8)&255) * 0.00390625) - 0.5) * FORCE)*0.2 - this.y;
}
}
}