在文档类中动态绘制圆形预加载器错误 1061

Question

我找到了有关如何制作动态未填充和填充圆圈的教程。这将从滑块中获取输入来确定绘制了多少圆。我想用它作为预加载器。与作者不同，我想在文档类中使用它。我正在得到 1061：通过静态类型文档的引用调用可能未定义的方法createEmptyMovieClip。和1120：访问未定义的属性circ1。第二个是由第一个引起的。我如何让它在我的文档类中工作？预先感谢！

//original code
// x: circles center x, y: circles center y
// a1: first angle, a2: angle to draw to, r: radius
// dir: direction; 1 for clockwise -1 for counter clockwise
MovieClip.prototype.CircleSegmentTo = function(x, y, a1, a2, r, dir) {
     var diff = Math.abs(a2-a1);
     var divs = Math.floor(diff/(Math.PI/4))+1;
     var span = dir * diff/(2*divs);
     var rc = r/Math.cos(span);
     this.moveTo(x+Math.cos(a1)*r, y+Math.sin(a1)*r);
     for (var i=0; i<divs; ++i) {
          a2 = a1+span; a1 = a2+span;
          this.curveTo(
               x+Math.cos(a2)*rc,
               y+Math.sin(a2)*rc,
               x+Math.cos(a1)*r,
               y+Math.sin(a1)*r
          );
     };
     return this;
};

// empty
this.createEmptyMovieClip("circ1",1);
circ1._x = 100;
circ1._y = 150;
circ1.radius = 35;

circ1.onEnterFrame = function(){
    this.clear();
    var endAngle = 2*Math.PI*percentLoaded;
    var startAngle = 0;
    if (endAngle != startAngle){
        this.lineStyle(2,0,100);
        this.CircleSegmentTo(0, 0, startAngle, endAngle, this.radius, -1);
    }
}

//filled
this.createEmptyMovieClip("circ2",2);
circ2._x = 220;
circ2._y = 150;
circ2.radius = 35;
/* code in tutorial i left out since its for a second filled in circle
circ2.onEnterFrame = function(){
    this.clear();
    var endAngle = 2*Math.PI*slider.value/100;
    var startAngle = 0;
    if (endAngle != startAngle){
        this.lineStyle(2,0,100);
        this.beginFill(0xFF9999,100);
        this.lineTo(this.radius,0);
        this.CircleSegmentTo(0, 0, startAngle, endAngle, this.radius, -1);
        this.lineTo(0,0);
        this.endFill();
    }
}
*/

Answer 1

您获得的代码是使用 Actionscript 2 编写的，并且您正在为 Actionscript 3 构建它，因此您必须将其重新编码为 Actionscript 3 或针对 AS2 进行编译。