AS3文档类打造绚烂星形变幻效果

文档类：

package

{

importflash.display.Sprite;

importflash.events.Event;

importflash.events.MouseEvent;



[SWF(backgroundColor="0x000000",frameRate="60")]



publicclassMainextendsSprite

{

privatevarpatternList:Array=newArray();



privatevarmoveBullet:Array=newArray();



publicfunctionMain():void

{

if(stage)init();

elseaddEventListener(Event.ADDED_TO_STAGE,init);

}



privatefunctioninit(e:Event=null):void

{

removeEventListener(Event.ADDED_TO_STAGE,init);

//entrypoint

MouseDown(null);



addEventListener(Event.ENTER_frame,Enterframe);

stage.addEventListener(MouseEvent.MOUSE_DOWN,MouseDown);

}



privatefunctionEnterframe(event:Event):void

{

vari:int=0;





for(i=0;i<patternList.length;i++)

{

varbullet:Bullet=patternList[i].Run();

if(bullet!=null)

{

addChild(bullet);

}

}

for(i=patternList.length-1;i>=0;i--)

{

if(patternList[i].isEnd())

{

//从待命到移动

for(varj:int=0;j<patternList[i].waitBullet.length;j++)

{

patternList[i].waitBullet[j].StartSlide();

moveBullet.push(patternList[i].waitBullet[j]);

}

patternList.splice(i,1);

}

}



//移动

if(moveBullet.length>0)

{

for(i=moveBullet.length-1;i>=0;i--)

{

//

if(moveBullet[i].slideFlag)

{

moveBullet[i]._xx+=Math.cos(moveBullet[i].slideAngle*Math.PI/180)*moveBullet[i].slideSpeed;

moveBullet[i]._xy+=Math.sin(moveBullet[i].slideAngle*Math.PI/180)*moveBullet[i].slideSpeed;

moveBullet[i].x=moveBullet[i]._xx;

moveBullet[i].y=moveBullet[i]._xy;



if(moveBullet[i].slideSpeed>0)

{

moveBullet[i].slideSpeed-=moveBullet[i].slideSpeedMax/50;

if(moveBullet[i].slideSpeed<0)moveBullet[i].slideFlag=false;

}



}else

{

moveBullet[i]._xx+=Math.cos(moveBullet[i].moveAngle*Math.PI/180)*1;

moveBullet[i]._xy+=Math.sin(moveBullet[i].moveAngle*Math.PI/180)*1;

moveBullet[i].x=moveBullet[i]._xx;

moveBullet[i].y=moveBullet[i]._xy;



if(moveBullet[i].x<-50||moveBullet[i].x>stage.stageWidth+50||moveBullet[i].y<-50||moveBullet[i].y>stage.stageHeight+50)

{

removeChild(moveBullet[i]);

moveBullet.splice(i,1);

}

}

}

}

}



privatefunctionMouseDown(event:MouseEvent):void

{

//小星

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,50,0xFF5555,(270+72*0),3));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,50,0xFF5555,(270+72*1),3));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,50,0xFF5555,(270+72*2),3));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,50,0xFF5555,(270+72*3),3));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,50,0xFF5555,(270+72*4),3));

//大星

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,100,0x5555FF,(270+72*0),5));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,100,0x5555FF,(270+72*1),5));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,100,0x5555FF,(270+72*2),5));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,100,0x5555FF,(270+72*3),5));

patternList.push(newPattern(stage.stageWidth/2,stage.stageHeight/2,false,100,0x5555FF,(270+72*4),5));

}



}



}

//////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////

importflash.display.Sprite;

importflash.geom.Point;



//-----------------------------

//图案类

classPattern{



privatevarreverse:Boolean=false;

privatevarstarSize:Number=150;

privatevarbulletColor:uint=0x000000;



privatevarslideAngle:Number=0;

privatevarslideSpeed:Number=0;



privatevarend:Boolean=false;

privatevarcount:int=0;

privatevardefX:int=0;

privatevardefY:int=0;



privatevartarget:Array=newArray();



privatestaticconstPATH_OBJ_NUM:int=20;//子弹数

privatestaticconstTARGET_NUM:int=5;

privatestaticconstTARGET_ANGLE:Array=[270+72*3,270+72*1,270+72*4,270+72*2,270];//通过的目标地点的角度

privatestaticconstTARGET_ANGLE2:Array=[270+72*2,270+72*4,270+72*1,270+72*3,270];//



publicvarwaitBullet:Array=newArray();



publicfunctionPattern(

_gx:int=0,_gy:int=0,

_rev:Boolean=false,

_starSize:Number=80,

_bulletColor:uint=0x000000,

_slideAngle:Number=0,

_slideSpeed:Number=0

){

count=0;

defX=_gx;

defY=_gy;



reverse=_rev;

starSize=_starSize;

bulletColor=_bulletColor;

slideAngle=_slideAngle;

slideSpeed=_slideSpeed;



for(vari:int=0;i<5;i++)

{

varangle:Number=TARGET_ANGLE[i];

if(reverse)angle=TARGET_ANGLE2[i]+180;//反転

elseangle=TARGET_ANGLE[i];



target[i]=newPoint(Math.cos(angle*Math.PI/180)*starSize,Math.sin(angle*Math.PI/180)*starSize);

}

}

//子弹生成

publicfunctionRun():Bullet{



varbullet:Bullet=newBullet(bulletColor,slideAngle,slideSpeed);



vartargetNo:int=int(count/PATH_OBJ_NUM);

vartargetRate:int=int(count%PATH_OBJ_NUM);

varp:Point;



//子弹的座标

p=Point.interpolate(target[targetNo],target[(targetNo+(TARGET_NUM-1))%TARGET_NUM],targetRate/PATH_OBJ_NUM);

bullet.x=p.x+defX;

bullet.y=p.y+defY;

bullet._xx=p.x+defX;

bullet._xy=p.y+defY;



//子弹的移动角度

//if(!reverse)bullet.moveAngle=-count/PATH_OBJ_NUM/TARGET_NUM*720+135;

//elsebullet.moveAngle=count/PATH_OBJ_NUM/TARGET_NUM*720-135;



bullet.moveAngle=(-int(count/PATH_OBJ_NUM)/TARGET_NUM*720+108)+((count%PATH_OBJ_NUM)*180/PATH_OBJ_NUM);//Target始点角度+180*rateグレイソーに入る前の奴





waitBullet.push(bullet);



count++;

if(count==TARGET_NUM*PATH_OBJ_NUM)end=true;



returnbullet;

}



publicfunctionisEnd():Boolean{returnend;}

}



//-----------------------------

//子弹类

classBulletextendsSprite{



publicvarslideFlag:Boolean=false;



publicvarslideAngle:Number=0;

publicvarslideSpeed:Number=0;

publicvarslideSpeedMax:Number=0;

publicvarmoveAngle:Number=0;



publicvar_xx:Number=0;

publicvar_xy:Number=0;



publicfunctionBullet(color:uint,_slideAngle:Number=0,_slideSpeed:Number=50){

super();



graphics.beginFill(color);

graphics.drawCircle(0,0,5);

graphics.endFill();



graphics.beginFill(0xFFFFFF,0.5);

graphics.drawCircle(0,0,3);

graphics.endFill();



slideAngle=_slideAngle;

slideSpeed=_slideSpeed;

slideSpeedMax=_slideSpeed;



slideFlag=false;

}



publicfunctionStartSlide():void

{

slideFlag=true;

}



}