forked from: AQUAFLARE
/**
* Copyright get_a_happy ( http://wonderfl.net/user/get_a_happy )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/mb6m
*/
// forked from okoi's AQUAFLARE
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.Point;
import flash.filters.BlurFilter;
import flash.filters.ColorMatrixFilter;
import flash.geom.Matrix;
[SWF(width = "465", height = "465", frameRate = "60")]
/**
* ...
* @author
*/
public class Main extends Sprite
{
public static const WIDTH:int = 465;
public static const HEIGHT:int = 465;
private var back:BitmapData;
private var canvas:BitmapData;
private var particles:/*SparkParticle*/Array;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
// entry point
var mat:Matrix = new Matrix();
mat.createGradientBox(WIDTH, HEIGHT,Math.PI/2);
//graphics.beginFill(0);
graphics.beginGradientFill(
"linear",
[0, 0x555555, 0],
[1, 1, 1],
[50, 200, 255],
mat
);
graphics.drawRect(0, 0, WIDTH, HEIGHT);
graphics.endFill();
back = new BitmapData( WIDTH, HEIGHT, true, 0 );
addChild( new Bitmap(back) );
canvas = new BitmapData( WIDTH, HEIGHT, true, 0 );
addChild( new Bitmap(canvas) );
particles = [];
addEventListener( Event.ENTER_FRAME, EnterFrameHandler );
}
private function EnterFrameHandler( e:Event ) : void
{
var i:int;
var colorMat:ColorMatrixFilter = new ColorMatrixFilter([
1, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0.5, 0
]);
canvas.lock();
//canvas.fillRect(canvas.rect, 0);
canvas.applyFilter( canvas, canvas.rect, new Point(), colorMat );
for ( i = particles.length - 1; i >= 0; i-- )
{
particles[i].Move();
var x:Number = particles[i].x + WIDTH / 2;
var y:Number = 350 - particles[i].y;
var z:Number = particles[i].z * 0.3;
canvas.setPixel32( x, y + z, 0xFF00bfff );
if ( particles[i].life <= 0 ) particles.splice( i, 1 );
}
canvas.unlock();
back.lock();
back.applyFilter( back, back.rect, new Point(), new BlurFilter(4,4) );
back.draw( canvas, null, null, "add" );
back.unlock();
for ( i = 0; i < 7; i++ )
{
AddSpark();
}
}
private function AddSpark() : void
{
particles.push( new SparkParticle( (Math.random()*100 - 50), (Math.random()*10 - 5) ) );
}
}
}
class SparkParticle {
public var x:Number = 0;
public var y:Number = 0;
public var z:Number = 0;
private var _vx:Number = 0;
private var _vy:Number = 0;
private var _vz:Number = 0;
public var life:int;
public function SparkParticle( x:Number, y:Number ) {
this.x = x;
this.y = y;
_vx = Math.random() * 5 - 2.5;
_vz = Math.random() * 5 - 2.5;
_vy = Math.random() * 10;
life = int(Math.random() * 300);
}
public function Move() : void {
if ( y + _vy < 0 )
{
var rate:Number = y / Math.abs(_vy);
x = x + _vx * rate;
y = y + _vy * rate;
z = z + _vz * rate;
_vx = Math.random() * 5 - 2.5;
_vz = Math.random() * 5 - 2.5;
_vy = (_vy * -1) * 0.4;
}else
{
x = x + _vx;
y = y + _vy;
z = z + _vz;
_vy -= 0.2;
}
var sin:Number = Math.sin( 90 / 180 * Math.PI );
var cos:Number = Math.cos( 90 / 180 * Math.PI );
var xx:Number = x * cos + z * -sin;
var zz:Number = x * sin + z * cos;
var r:Number = Math.sqrt( xx * xx + zz * zz );
xx /= r;
zz /= r;
x += xx/2;
z += zz/2;
life--;
}
}