/**
* Copyright yama3 ( http://wonderfl.net/user/yama3 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/a5ft
*/
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.Point;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.filters.ColorMatrixFilter;
import flash.filters.BlurFilter;
import flash.geom.ColorTransform;
[SWF(width="465", height="465", frameRate="60")]
public class FlashTest extends Sprite {
private var particleList:/*Particle*/Array;
private var sprite:Sprite;
private var canvas:BitmapData;
private var backcanvas:BitmapData;
private var filter:ColorMatrixFilter;
private var blurfilter:BlurFilter;
private var hanabi:SenkouHanabi;
private var step:int = 0;
public function FlashTest() {
if(stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
graphics.beginFill(0);
graphics.drawRect(0, 0, 465, 465);
graphics.endFill();
hanabi = new SenkouHanabi();
addChild(hanabi);
hanabi.x = 465 / 2;
hanabi.y = 0;
var color:ColorTransform = new ColorTransform(0.8, 0.8, 0.8, 1);
hanabi.transform.colorTransform = color;
sprite = new Sprite();
backcanvas = new BitmapData(465, 465, true, 0);
addChild(new Bitmap(backcanvas));
canvas = new BitmapData(465, 465, true, 0);
addChild(new Bitmap(canvas));
particleList = [];
filter = new ColorMatrixFilter([
1,0,0,0,0,
0,1,0,0,0,
0,0,1,0,0,
0,0,0,0.8,0
]);
blurfilter = new BlurFilter(4, 4, 3);
addEventListener(Event.ENTER_FRAME, EnterFrameHandler);
}
private function EnterFrameHandler(e:Event):void
{
var i:int;
for(i = particleList.length - 1; i >= 0; i--)
{
if(particleList[i].life == 0) particleList.splice(i,1);
}
for(i = particleList.length - 1; i >= 0; i--)
{
particleList[i].prevX = particleList[i].x;
particleList[i].prevY = particleList[i].y;
particleList[i].x += particleList[i].mx;
particleList[i].y += particleList[i].my;
particleList[i].my += 0.1;
particleList[i].life--;
if(particleList[i].life == 0) {
if(particleList[i].generation < Particle.MAX_GENERATION)
{
for(var j:int=0; j<4; j++)
{
particleList.push(CreateParticle(particleList[i], particleList[i].x, particleList[i].y));
}
}
}
}
if(step++ %3 == 0)
{
particleList.push(CreateParticle(null, 465/2, 465/2));
}
sprite.graphics.clear();
sprite.graphics.beginFill(0xff8c00);
sprite.graphics.drawCircle(465/2, 465/2, 2 + Math.random()*2);
sprite.graphics.endFill();
for(i = 0; i < particleList.length; i++)
{
sprite.graphics.lineStyle(1.2, 0xff8c00);
sprite.graphics.moveTo(particleList[i].prevX, particleList[i].prevY);
sprite.graphics.lineTo(particleList[i].x, particleList[i].y);
}
canvas.lock();
canvas.applyFilter(canvas, canvas.rect, new Point(), filter);
canvas.draw(sprite, null, null, "add");
canvas.unlock();
backcanvas.lock();
backcanvas.draw(canvas);
backcanvas.applyFilter(backcanvas, backcanvas.rect, new Point(), blurfilter);
backcanvas.applyFilter(backcanvas, backcanvas.rect, new Point(), filter);
backcanvas.unlock();
}
private function GetParticleLife(generation:int):int
{
return (Particle.MAX_GENERATION - generation) * 1 + 3;
}
private function CreateParticle(parent:Particle, x:Number, y:Number):Particle
{
var particle:Particle = new Particle();
particle.prevX = particle.x = x;
particle.prevY = particle.y = y;
if(parent == null) particle.generation = 0;
else particle.generation = parent.generation + 1;
particle.life = GetParticleLife(particle.generation) * (Math.random() * 0.5 + 0.5);
if(parent == null) particle.angle = Math.random() * 360;
else particle.angle = parent.angle + (Math.random() * 160 - 80);
var speedrate:Number = Math.random();
particle.mx = Math.cos(particle.angle * Math.PI / 180) * 8 * speedrate;
particle.my = Math.sin(particle.angle * Math.PI / 180) * 8 * speedrate;
return particle;
}
}
}
import flash.display.Sprite;
class Particle {
public static const MAX_GENERATION:int = 4;
public var x:Number;
public var y:Number;
public var prevX:Number;
public var prevY:Number;
public var generation:int;
public var life:int;
public var mx:Number;
public var my:Number;
public var angle:Number;
}
class SenkouHanabi extends Sprite {
public function SenkouHanabi() {
graphics.lineStyle(2, 0xc71585);
graphics.moveTo(0, 0);
graphics.lineTo(0, 5);
graphics.lineStyle(2, 0xFFFFFF);
graphics.moveTo(0, 5);
graphics.lineTo(0, 15);
graphics.lineStyle(2, 0xc71585);
graphics.moveTo(0, 15);
graphics.lineTo(0, 30);
graphics.lineStyle(2, 0xFFFFFF);
graphics.moveTo(0, 30);
graphics.lineTo(0, 45);
graphics.lineStyle(3, 0xff69b4);
graphics.moveTo(0, 45);
graphics.lineTo(0, 100);
graphics.lineStyle(3, 0xffd700);
graphics.moveTo(0, 100);
graphics.lineTo(0, 150);
graphics.lineStyle(3, 0x3cb371);
graphics.moveTo(0, 150);
graphics.lineTo(0, 155);
graphics.lineStyle(3, 0xffd700);
graphics.moveTo(0, 155);
graphics.lineTo(0, 160);
graphics.lineStyle(3, 0x3cb371);
graphics.moveTo(0, 160);
graphics.lineTo(0, 165);
graphics.lineStyle(4, 0xffd700);
graphics.moveTo(0, 165);
graphics.lineTo(0, 185);
graphics.lineStyle(5, 0xc71585);
graphics.moveTo(0, 185);
graphics.lineTo(0, 200);
graphics.lineStyle(3, 0xc71585);
graphics.moveTo(0, 200);
graphics.lineTo(0, 220);
graphics.lineStyle(2, 0xc71585);
graphics.moveTo(0, 220);
graphics.lineTo(0, 232);
}
}
