// forked from matsu4512's キラキラ３
package {
	
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.BlendMode;
	import flash.display.Graphics;
	import flash.display.PixelSnapping;
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.Event;
	import flash.filters.GlowFilter;
	import flash.geom.Matrix;
	
	import frocessing.color.ColorHSV;

[SWF(width=465, height=465, backgroundColor=0x0, frameRate=30)]

public class kirakiraParticle3 extends Sprite {
		
		private var cvs:BitmapData;
		private var glow_bmpData:BitmapData;
		private var glowMtx:Matrix;
		private var particles:Array;
		private var pixel_particles:Array;
		private var w:Number, h:Number, hw:Number, hh:Number;
		private var hsvc:ColorHSV = new ColorHSV(0,0.5,0.5);
		private var color:uint = 0;
		private var sp:Sprite = new Sprite();
		private var glowf:GlowFilter = new GlowFilter();
		
		public function kirakiraParticle3() {
			stage.scaleMode = StageScaleMode.NO_SCALE;
			stage.align = StageAlign.TOP_LEFT;
			
			w = stage.stageWidth;
			h = stage.stageHeight;
			
			this.cvs = new BitmapData(465, 465, false, 0x0);
			addChild(new Bitmap(cvs)) as  Bitmap;
			glow_bmpData = new BitmapData(465 / 4, 465 / 4, false, 0x0);
			var bm:Bitmap = addChild(new Bitmap(glow_bmpData, PixelSnapping.NEVER, true)) as Bitmap;
			bm.scaleX = bm.scaleY = 4;
			bm.blendMode = BlendMode.ADD;
			glowMtx = new Matrix(0.25, 0, 0, 0.25);
			particles = [];
			pixel_particles = [];

addEventListener(Event.ENTER_FRAME, update);
		}
		
		public function createParticle(xx:Number, yy:Number, c:int, vx:Number, vy:Number, size:Number):void {
			var p:Particle = new Particle();
			p.x = xx;
			p.y = yy;
			p.vx = vx;
			p.vy = vy;
			p.c = c;
			var g:Graphics = p.graphics;
			g.beginFill(0xffffff);
			g.drawCircle(0,0,size);
			g.endFill();
			glowf.color = c;
			glowf.alpha = 1;
			glowf.blurX = 8;
			glowf.blurY = 8;
			glowf.strength = 6;
			glowf.quality = 6;
			p.filters = [glowf];
			sp.addChild(p);
			particles.push(p);
		}
		
		public function createPixelParticle(xx:Number, yy:Number, c:int, vx:Number, vy:Number):void{
			var p:pixelParticle = new pixelParticle();
			p.x = xx;
			p.y = yy;
			p.vx = vx;
			p.vy = vy;
			p.c = c;
			p.life = 20;
			pixel_particles.push(p);
		}
		
		public function update(e:Event):void {
			cvs.lock();
			cvs.fillRect(cvs.rect, 0);
			var n:int = particles.length;
			while (n--) {
				var p:Particle = particles[n];
				p.vx *= 1.01;
				p.vy *= 1.01;
				p.x += p.vx;
				p.y += p.vy;
				createPixelParticle(p.x, p.y, p.c, -p.vx/2.0,-p.vy/2.0);
				if (p.y < 0 || p.y > h || p.x < 0|| p.x > w) {
					particles.splice(n, 1);
					sp.removeChild(p);
				}
			}
			cvs.draw(sp);
			
			n = pixel_particles.length;
			while (n--) {
				var pp:pixelParticle = pixel_particles[n];
				pp.x += pp.vx;
				pp.y += pp.vy;
				pp.life--;
				cvs.setPixel32(pp.x, pp.y, pp.c);
				if (pp.life <= 0) {
					pixel_particles.splice(n, 1);
				}
			}
			cvs.unlock();
			glow_bmpData.draw(cvs, glowMtx);
			
			hsvc.h += 3;
			var c:uint = (hsvc.toRGB().value);
			createParticle(mouseX, mouseY, c, Math.random()*14-7, Math.random()*14-7, Math.random()*3+1);
		}
	}
}
	import flash.display.Shape;

class Particle extends Shape{
	public var vx:Number;
	public var vy:Number;
	public var c:uint;
}

class pixelParticle {
	public var x:Number;
	public var y:Number;
	public var vx:Number;
	public var vy:Number;
	public var c:uint;
	public var life:int;
}

forked from: キラキラ３