我试图创建一种树形图,使得如果你点击其中一个圆圈,它的子圆圈向外散布一定程度的随机性从原始圆圈连接线。我有这个工作,但现在我想要做的是确保没有任何一个圆圈彼此碰撞,没有任何一条线纵横交错。你可以看到正在发生的事情的截图。我的代码如下。如何更改此代码以检查碰撞并避免碰撞?我已经阅读了flash的hitTestObject命令,但它只适用于上下文中的一个对象。我想测试一个对象与任何显示对象的联系。与舞台上的多个对象碰撞测试
import com.greensock.TweenMax;
var sw = stage.stageWidth;
var sh = stage.stageHeight;
var cr = 3; //circle radius
var moveRange = 25;
var circleColor = 0xcccccc;
var numCircles = 4;
var lineCanvas:Sprite = new Sprite();
addChild(lineCanvas);
var lineColor = 0xe9e9e9;
var lineWeight = 1;
function init(){
firstCircle();
}
function firstCircle(){
var xPos = randomRange(cr, sw-cr);
var yPos = randomRange(cr, sh-cr);
var newCircle:Shape = new Shape();
newCircle.graphics.beginFill(circleColor);
newCircle.graphics.drawCircle(0,0,cr);
newCircle.graphics.endFill();
var circleClip:MovieClip = new MovieClip();
circleClip.childCircles = 2;
circleClip.x = xPos;
circleClip.y = yPos;
circleClip.addChild(newCircle);
addChild(circleClip);
circleClip.addEventListener(MouseEvent.CLICK,clickCircle);
}
function clickCircle(e:MouseEvent):void {
var thisCircle = e.target;
for (var i=0; i<thisCircle.childCircles;i++){
drawCircle(thisCircle);
}
}
function drawCircle(parentCircle){
var xPos = parentCircle.x;
var yPos = parentCircle.y
//var xPos = randomRange(cr, sw-cr);
//var yPos = randomRange(cr, sh-cr);
var newCircle:Shape = new Shape();
newCircle.graphics.beginFill(circleColor);
newCircle.graphics.drawCircle(0,0,cr);
newCircle.graphics.endFill();
var circleClip:MovieClip = new MovieClip();
circleClip.childCircles = 2;
circleClip.x = xPos;
circleClip.y = yPos;
circleClip.addChild(newCircle);
addChild(circleClip);
circleClip.addEventListener(MouseEvent.CLICK,clickCircle);
moveCircle(circleClip,xPos,yPos);
}
function drawLine(childCircle,parentX,parentY){
lineCanvas.graphics.lineStyle(lineWeight,lineColor);
lineCanvas.graphics.moveTo(parentX,parentY);
lineCanvas.graphics.lineTo(childCircle.x,childCircle.y);
//想检查线或圆是否在这里联系任何东西。如果是这样,我想杀死圈子(因此也停止绘制线)。
}
function moveCircle(childCircle,parentX,parentY){
var curX = childCircle.x;
var curY = childCircle.y;
var moveX = randomRange(curX-moveRange,curX+moveRange);
var moveY = randomRange(curY-moveRange-cr,curY+moveRange+cr);
TweenMax.to(childCircle,.5, { x: moveX, y: moveY, onUpdate:drawLine, onUpdateParams:[childCircle,parentX,parentY]});
}
function randomRange(minNum:Number, maxNum:Number):Number {
return (Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum);
}
init();