关于设计：Actionscript 有关鼠标事件笔记

1、鼠标手指状指针的使用设置，将鼠标指针变换为手指状。

 1 boy_mc.buttonMode = true;
 2 boy_mc.addEventListener("mouseOver", overMc);
 3 function overMc(me:MouseEvent){
 4  boy_mc.useHandCursor = false;
 5 }
 6 boy_mc.addEventListener("mouseDown", downMc);
 7 function downMc(me:MouseEvent){
 8  boy_mc.useHandCursor = true;
 9  boy_mc.startDrag();
10  boy_mc.alpha = 0.8;
11 }
12 boy_mc.addEventListener("mouseUp", upMc);
13 function upMc(me:MouseEvent){
14  boy_mc.useHandCursor = false;
15  boy_mc.stopDrag();
16  boy_mc.alpha = 1;
17 }

2、自定义鼠标指针。

1 Mouse.hide();
2 hand_mc.startDrag(true);

3、自动回旋的追踪鼠标指针效果。利用指针位置与相关三角函数方法sin（）、cos（）、atan2（）来旋转移动影片剪辑。

 1 var speed=10;
 2 var disX,disY,radi;
 3 function mousRot(){
 4  radi=Math.atan2(disY,disX);
 5  var de=angle(radi);
 6  mouse_mc.rotation=de;
 7 }
 8 function angle(radi){
 9  var de=radi * 180 /Math.PI;
10  return(de);
11 }
12 this.addEventListener(Event.ENTER_FRAME,traceMous);
13 function traceMous(me:Event){
14  disX=this.mouseX-mouse_mc.x;
15  disY=this.mouseY-mouse_mc.y;
16  var dis=Math.sqrt(disX * disX + disY * disY);
17  if (dis>speed){
18   mousRot();
19   var spX=Math.cos(radi) * speed;
20   var spY=Math.sin(radi) * speed;
21   mouse_mc.x += spX;
22   mouse_mc.y += spY;
23  }else if (mouse_mc.x != this.mouseX && mouse_mc.y != this.mouseY){
24   mousRot();
25   mouse_mc.x=this.mouseX;
26   mouse_mc.y=this.mouseY;
27  }
28 }

4、随鼠标指针飘荡的文字

 1 var wordArr=[word1_mc,word2_mc,word3_mc,word4_mc,word5_mc,word6_mc,word7_mc,word8_mc,word9_mc,word10_mc,word11_mc,word12_mc,word13_mc];
 2 var arrLen=wordArr.length-1;
 3 this.addEventListener(Event.ENTER_FRAME,moveWord);
 4 function moveWord(me:Event)
 5 {
 6  wordArr[0].x=stage.mouseX + 12;
 7  wordArr[0].y=stage.mouseY + 12;
 8  var i=0;
 9  do  {
10   wordArr[i+1].x += (wordArr[i].x - wordArr[i+1].x)/2 + 12;
11   wordArr[i+1].y += (wordArr[i].y - wordArr[i+1].y)/2;
12   i++;
13  }while(i<arrLen)
14 }

5、随鼠标指针缩放的幽灵群。在元件中建立2个关键帧

1 var dx=stage.mouseX - this.x;
2 var dy=stage.mouseY - this.y;
3 var size = 115 - (Math.sqrt(dx * dx + dy * dy) / 3);
4 if (size<0){
5  size=0;
6 }
7 this.alpha =  size / 70;
8 this.width = size;
9 this.height = size;

1 this.gotoAndPlay(1);

6、产生鼠标移动轨迹的效果。

场景中

1 stage.addEventListener(MouseEvent.MOUSE_MOVE,traceobj);
2 function traceobj(me:MouseEvent){
3  var copy_mc:bubbleA=new bubbleA();
4   copy_mc.x=stage.mouseX;
5   copy_mc.y=stage.mouseY;
6   this.addChild(copy_mc);
7 }

元件中最后一帧

1 this.parent.removeChild(this);
2 stop();

7、随鼠标移动的射击游戏瞄准器。

1 stage.addEventListener("mouseMove",moveTarget);
2 function moveTarget(me:MouseEvent){
3  hLine_mc.y=mouseY;
4  vLine_mc.x=mouseX;
5  scope_mc.y=mouseY;
6  scope_mc.x=mouseX;
7  me.updateAfterEvent();
8 }

8、随鼠标指针移动的目光。

眼睛元件上的AS代码

1 stage.addEventListener(Event.ENTER_FRAME,moveEye);
2 function moveEye(me:Event){
3  var dx=stage.mouseX-this.x;
4  var dy=stage.mouseY-this.y;
5  var rad=Math.atan2(dy,dx);
6  var deg=180 * rad / Math.PI;
7  this.rotation=deg;
8 }