flash学习

第一个简单组件:用于画物理力的图示


Flash 动画：

代码:
//铁血制作
#initclip
function aaClass() {
    this.drawLine(this.f, this.theta, this.fname);
}
Object.registerClass("aa", aaClass);
aaClass.prototype = new MovieClip();
aaClass.prototype.drawLine = function() {
    var t = 0;
    this.lineStyle(2, 0xFF0000, 100);
    var cos = Math.cos;
    var sin = Math.sin;
    var PI = Math.PI;
    var f = this.f;
    var theta = this.theta;
    this.onEnterFrame = function() {
        if (t<this.f.length) {
            this.moveTo(0, 0);
            this.lineTo(f[t]*cos(theta[t]*PI/180), -f[t]*sin(theta[t]*PI/180));//力的大小
            this.lineTo((f[t]-10)*cos(theta[t]*PI/180)+5*sin(theta[t]*PI/180), -(f[t]-10)*sin(theta[t]*PI/180)+5*cos(theta[t]*PI/180));//箭头的一撇
            this.moveTo(f[t]*cos(theta[t]*PI/180), -f[t]*sin(theta[t]*PI/180));
            this.lineTo((f[t]-10)*cos(theta[t]*PI/180)-5*sin(theta[t]*PI/180), -(f[t]-10)*sin(theta[t]*PI/180)-5*cos(theta[t]*PI/180));//箭头另一撇
            this.createTextField("pos"+t, t, 0, 0, 40, 50);//力的标签
            this["pos"+t]._x = f[t]*cos(theta[t]*PI/180)+5;
            this["pos"+t]._y = -f[t]*sin(theta[t]*PI/180)-5;
            this["pos"+t].text = this.fname[t].toString();
        } else {
            delete this.onEnterFrame;
        }
        t++;
    };
};
#endinitclip