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 }
