我的physics Collides类（未完成）

class physics extends MovieClip {
private var _g:Number;
private var _ground:Number;

var vy:Number; var vx:Number;
 var pan:Boolean;
 var pan1:Boolean;
 var _friction:Number;
 var left:Number;
 var right:Number;
 var ob:Object;
 var hitmc:Object;
 var e:Number;
 var fix:Number;
 var k:Number = 0;
 var hitbox:Object;
 var m:Number;
 var zone:Object;
 var pan2:Boolean;
 function physics() {
 this.hitmc = {};
 this.hitbox = {};
 fix = 1; 
 getsize(); 
 pan1 = false; 
 } 
 function getsize() { 
 ob = this.getBounds(_root); 
 } 
 function get ground() { 
 return _ground; 
 } 
 function set ground(g) { 
 _ground = g; 
 } 
 function get g() { 
 return _g; 
 } 
 function set g(e) { 
 _g = e; 
 } 
 function get friction() { 
 return _friction; 
 } 
 function set friction(e) { 
 _friction = e; 
 } 
 function addgravity() { 
 //this.onEnterFrame = function() { 
 if (pan) { 
 if (this._y<=_ground-this._height && vy<=_ground-this._y-this._height/2) { 
 vy += _g; 
 } else { 
 k++; 
 if (k%5 == 0 && (_ground-this._height)<this._width) { 
 fix += 1; 
 } 
 vx *= e; 
 if (vy>0) { 
 vy *= -1; 
 vy *= e; 
 } 
 if (Math.abs(vy)<=fix) { 
 vy = 0; 
 vx = 0; 
 k = 0; 
 } 
 //trace(vy); 
 //this._y = _ground; 
 //delete onEnterFrame; 
 //} 
 } 
 if ((this._x<left && this.vx<left-this._x) || (this._x>right-this._width && this.vx>right-this._x)) { 
 //trace(vx) 
 vx *= -e; 
 } 
 this._y += vy; 
 this._x += vx; 
 } 
 } 
 function havehitbox(j, k) { 
 var w = this._width*100/this._xscale; 
 var h = this._height*100/this._yscale; 
 for (var i = 0; i<4; i++) { 
 var mc = this.createEmptyMovieClip("mc"+i, this.getNextHighestDepth()); 
 mc.lineStyle(0, 0xff0000, 100); 
 switch (i) { 
 case 0 : 
 mc.moveTo(j, 0); 
 mc.lineTo(w-j, 0); 
 break; 
 case 1 : 
 mc.moveTo(w, k); 
 mc.lineTo(w, h-k); 
 break; 
 case 2 : 
 mc.moveTo(w-j, h); 
 mc.lineTo(j, h); 
 break; 
 case 3 : 
 mc.moveTo(0, h-k); 
 mc.lineTo(0, k); 
 break; 
 } 
 } 
 } 
 function distance(x, y) { 
 } 
 function hitobject(mc) { 
 var o:Number = 0; 
 var v:Number = 0; 
 var This = this; 
 function distance(mc) { 
 o = Math.sqrt((This._x-mc._x)*(This._x-mc._x)+(This._y-mc._y)*(This._y-mc._y)); 
 return o; 
 } 
 distance(mc); 
 function dv(mc) { 
 v = Math.sqrt((This.vx-mc.vx)*(This.vx-mc.vx)+(This.vy-mc.vy)*(This.vy-mc.vy)); 
 return v; 
 } 
 dv(mc); 
 //v=Math.abs(this.vx-mc.vx)|| v>o/4 o<=(this._width+mc._width)/2 
 if (this.hitTest(mc) || v>o-this._width) { 
 var vx1 = this.vx-mc.m/(this.m+mc.m)*(1+e)*(this.vx-mc.vx); 
 var vx2 = mc.vx+this.m/(this.m+mc.m)*(1+e)*(this.vx-mc.vx); 
 var vy1 = this.vy-mc.m/(this.m+mc.m)*(1+e)*(this.vy-mc.vy); 
 var vy2 = mc.vy+this.m/(this.m+mc.m)*(1+e)*(this.vy-mc.vy); 
 this.vx = vx1; 
 mc.vx = vx2; 
 this.vy = vy1; 
 mc.vy = vy2; 
 } 
 } 
 function hitzone(e) { 
 for (var i in hitmc) { 
 hitmc[i].getsize(); 
 if (this.hitTest(hitmc[i])) { 
 //|| this.vy>hitmc[i].ob.yMin-this._y 
 if (this.hitTest(hitmc[i].mc0)) { 
 //上边 
 if (vy>hitmc[i].ob.yMin-this._height-this._y) { 
 vy *= -hitmc[i]["hitbox"].e; 
 if (Math.abs(vy)<1) { 
 this._y = Math.max(hitmc[i].ob.yMin-this._height, 0); 
 vy = 0; 
 } 
 } 
 } 
 if (this.hitTest(hitmc[i].mc1) || vx<this._x-hitmc[i].ob.xMax) { 
 //右边 
 vx *= -hitmc[i]["hitbox"].e; 
 if (Math.abs(vx)<1) { 
 this._x = Math.max(hitmc[i].ob.xMax, 0); 
 vx = 0; 
 //this._x = Math.max(hitmc[i].ob.xMax, 0); 
 } 
 } 
 if (this.hitTest(hitmc[i].mc2)) { 
 if (vy<this._y-hitmc[i].ob.yMax) { 
 //底边检测 
 vy *= -hitmc[i]["hitbox"].e; 
 if (Math.abs(vy)<1) { 
 this._y = Math.max(hitmc[i].ob.yMax, 0); 
 vy = 0; 
 } 
 } 
 } 
 if (this.hitTest(hitmc[i].mc3)) { 
 //左边检测 
 if (vx>hitmc[i].ob.xMin-this._x-this._width) { 
 vx *= -hitmc[i]["hitbox"].e; 
 if (Math.abs(vx)<1) { 
 this._x = Math.max(hitmc[i].ob.xMin-this._width, 0); 
 vx = 0; 
 } 
 } 
 //this._x = Math.max(hitmc[i].ob.xMin-this._width, 0); 
 } 
 } 
 //end hittest 
 } 
 //end for 
 } 
 function onPress() { 
 startDrag(this); 
 var This = this; 
 pan = false; 
 pan1 = true; 
 if (zone<>undefined) { 
 pan2 = true; 
 } 
 var ox:Array; 
 var oy:Array; 
 ox = [null, null]; 
 oy = [null, null]; 
 this._parent.onEnterFrame = function() { 
 //trace(This.vy) 
 ox.push(This._x); 
 ox.shift(); 
 oy.push(This._y); 
 oy.shift(); 
 This.vx = (ox[1]-ox[0]); 
 This.vy = (oy[1]-oy[0]); 
 }; 
 } 
 function onMouseMove() { 
 /* 
 if (pan2) { 
 for (var i in this._parent) { 
 if (this._parent[i] instanceof MovieClip) { 
 
 if (this.hitTest(_level0.l["mc3"])) { 
 trace(this) 
 _level0.l._y = this._y-_level0.l._height; 
 
 } 
 } 
 } 
 }*/ 
 if (pan1) { 
 for (var i in hitmc) { 
 for (var j in hitmc[i]) { 
 if (hitmc[i][j] instanceof MovieClip) { 
 //trace(hitmc[i][j]) 
 //var temp=hitmc[i][j]._name.slice(2,3) 
 if (this.hitTest(hitmc[i][j])) { 
 switch (String(j)) { 
 case "mc0" : 
 this._y = hitmc[i].ob.yMin-this._height; 
 break; 
 case "mc1" : 
 this._x = hitmc[i].ob.xMax; 
 break; 
 case "mc2" : 
 this._y = hitmc[i].ob.yMax; 
 //小球不过底界 
 break; 
 case "mc3" : 
 this._x = hitmc[i].ob.xMin-this._width; 
 break; 
 } 
 } 
 } 
 } 
 } 
 } 
 } 
 function onRelease() { 
 pan = true; 
 pan1 = false; 
 pan2 = false; 
 stopDrag(); 
 } 
 function onReleaseOutside() { 
 onRelease(); 
 } 
 function onEnterFrame() { 
 //testhit()trace(vy); 
 } 
}

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Author:　PublishTime:2006-1-22

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