firework.as

绚丽烟花(AS3.0) 采用flash cs3制作 效果特别绚丽 参考Java制作

package
{
	import flash.display.*;
	import flash.events.*;
	import flash.geom.*;
	import flash.media.*;
	import flash.text.*;
	import flash.ui.*;
	import flash.utils.Timer;
	import flash.filters.*;
	public class firework extends Sprite
	{
		var con:ConvolutionFilter;
        var rect:Rectangle;
        var bitmap1:BitmapData;
        var bitmap2:BitmapData;
        var bitmapShow1:Bitmap;
        //粒子的显示画布
        var bitmapShow2:Bitmap;
        //白色闪光点的显示画布
        var m_mouseX:int;
        //鼠标x坐标
        var m_mouseY:int;
        //鼠标y坐标
        var sound1:Sound1;
        //上升过程的声音
        var sound2=Sound2;
        //爆炸声音
        var bit_px:Array;
        //爆炸过程的x坐标
        var bit_py:Array;
        //爆炸过程的y坐标
        var bit_vx:Array;
        //爆炸过程的x速度
        var bit_vy:Array;
        //爆炸过程的y速度
        var bit_sx:Array;
        //上升过程的x坐标
        var bit_sy:Array;
        //上升过程的y坐标
        var bit_l:Array;
        //粒子的生命时间
        var bit_f:Array;
        //是上升还是爆炸的标志
        var bit_p :Array;
        //随机出现白色闪光点的标志
        var bit_c :Array;
        //粒子颜色
		
		var myTimer:Timer;
		var myContextMenu:ContextMenu;
		
		function firework()
		{
			init();
			stage.scaleMode=StageScaleMode.NO_SCALE;
			addEventListener(Event.ENTER_FRAME, enterFrameHandler);
			stage.addEventListener(MouseEvent.CLICK, clickHandler);
			
			
			myContextMenu = new ContextMenu();
			myContextMenu.hideBuiltInItems();
            var defaultItems:ContextMenuBuiltInItems = myContextMenu.builtInItems;
			contextMenu=myContextMenu;
			addCustomMenuItems('绚丽烟花',false);
			addCustomMenuItems('送给我的高中同桌',false);
			addCustomMenuItems('制作者:QQ:237075463',true);
			addCustomMenuItems('Email:[e-mail]',false);
		}
		function init()
		{
			bits = 500;
	        //总的最大粒子数
	        bit_max = 50;
	        //一次出现的粒子数
	        bit_sound = 2;
			con = new ConvolutionFilter(3, 3, [1, 1, 1, 1, 30, 1, 1, 1, 1], 38);
			rect= new Rectangle(0, 0, 500, 200);
			bitmap1 = new BitmapData(rect.width, rect.height, false, 0x000000);
			bitmap2 = new BitmapData(rect.width, rect.height, true, 0x00000000);
			bitmapShow1 = new Bitmap(bitmap1);
			addChild(bitmapShow1);
			bitmapShow2 = new Bitmap(bitmap2);
			addChild(bitmapShow2);
			sound1 = new Sound1();
			sound2 = new Sound2();
			bit_px = new Array(bits);
			bit_py = new Array(bits);
			bit_vx = new Array(bits);
			bit_vy = new Array(bits);
			bit_sx = new Array(bits);
			bit_sy = new Array(bits);
			bit_l = new Array(bits);
			bit_f = new Array(bits);
			bit_p = new Array(bits);
			bit_c = new Array(bits);
			for (var j:int = 0; j<bits; j++) 
			{
		        bit_f[j] = 0;
	        }
		}
		private function enterFrameHandler(event:Event):void 
		{
			//event.updateAfterEvent();
			bitmap2.fillRect(new Rectangle(0, 0, rect.width, rect.height), 0x00000000);
	        //白色闪光点清除
	        //bitmap2.applyFilter(bitmap, bitmap.rectangle, new Point(0, 0), con);
	        rend();
	        bitmap1.applyFilter(bitmap1, bitmap1.rect, new Point(0, 0), con);
	        //模糊滤镜
		}
		function rend() {
	        var flag:Boolean = false;
	        var flag1:Boolean = false;
	        var flag2:Boolean = false;
	        for (var k = 0; k<bits; k++) {
		        switch (bit_f[k]) {
		            case 1 :
					// 爆炸过程
			        bit_vy[k] += Math.random()/100;
			        bit_px[k] += bit_vx[k];
			        bit_py[k] += bit_vy[k];
			        bit_l[k]--;
			        if (bit_l[k] == 0 || !rect.contains(bit_px[k], bit_py[k])) 
					{
						bit_c[k] = 0x000000;
				        bit_f[k] = 0;
			        } else if (bit_p[k] == 0) 
					{
				        if (Math.floor(Math.random()*2) == 0) 
						{
							bit_setwhite(int(bit_px[k]), Math.floor(bit_py[k]), 0xFFFFFFFF);
				        }
						bit_set(Math.floor(bit_px[k]), Math.floor(bit_py[k]), bit_c[k]);
			        } else 
					{
						bit_set(Math.floor(bit_px[k]), Math.floor(bit_py[k]), bit_c[k]);
					}
			        break;
		            case 2 :
			        // 上升过程
			        bit_sy[k] -= 5;
			        if (bit_sy[k]<=bit_py[k])
					{
						bit_f[k] = 1;
				        flag2 = true;
			        }
			        if (Math.floor(Math.random()*20) == 0) 
					{
						var i:int = Math.floor(Math.random()*2);
				        var j:int = Math.floor(Math.random()*5);
				        bit_set(bit_sx[k]+i, bit_sy[k]+j, 0xFFFFFF);
			        }
			        break;
		        }
	        }
	        if (flag2) 
			{
				sound2.play();
	        }
		}
		private function clickHandler(event:MouseEvent):void 
		{
			m_mouseX = event.stageX;
	        m_mouseY = event.stageY;
	        if (rect.contains(m_mouseX, m_mouseY)) 
			{
				var k:uint = Math.floor(Math.random()*0xFF);
				var l:uint = Math.floor(Math.random()*0xFF);
				var i1:uint = Math.floor(Math.random()*0xFF);
				var j1:uint = k << 16 | l << 8 | i1;
				var k1:uint = 0;
		        for (var l1:int = 0; l1<bits; l1++) 
				{
					if (bit_f[l1] != 0) 
					{
						continue;
			        }
				    bit_px[l1] = m_mouseX;
			        bit_py[l1] = m_mouseY;
			        var d:Number = Math.random()*6.28;
			        var d1:Number = Math.random();
			        bit_vx[l1] = Math.sin(d)*d1/2;
			        bit_vy[l1] = Math.cos(d)*d1/2;
			        bit_l[l1] = Math.floor(Math.random()*100)+100;
			        bit_p[l1] = Math.floor(Math.random()*3);
			        if (Math.floor(4*Math.random()) == 0) 
				    {
					    bit_c[l1] = 0xFFFFFF;
			        } else 
				    {
					    bit_c[l1] = j1;
			        }
			        bit_sx[l1] = m_mouseX;
			        bit_sy[l1] = rect.height-5;
			        bit_f[l1] = 2;
			        if (++k1 == bit_max) 
				    {
					    break;
			        }
				}
			sound1.play();
		   }
		   
	    }
		function bit_set(i:int, j:int, k:uint) 
		{
			bitmap1.setPixel(i, j, k);
        }
        function bit_setwhite(i:int, j:int, k:uint) 
		{
			bitmap2.setPixel32(i, j, k);
	        //白色闪光点
        }
		public function addCustomMenuItems(menuLabel:String,spr:Boolean):void {
            var item:ContextMenuItem = new ContextMenuItem(menuLabel);
			if(spr==true)
			{
				item.separatorBefore=true;
			}
            myContextMenu.customItems.push(item);
            item.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, menuItemSelectHandler);
        }
		private function menuItemSelectHandler(event:ContextMenuEvent):void {
           //trace("menuItemSelectHandler: " + event);
		   var s:String=new String(event.target.caption);
		}

	}
}