Flash动画制作：飞舞的两只蝴蝶（4）

Flash动画制作：飞舞的两只蝴蝶

网络【转载】 2006年09月25日 15:36 评论

　　8.新建一个图层，然后把“引用”、“引用2”和辅助拖出来，注意辅助要拖两次，放置效果如下图：

　　然后分别给“引用”命名实例名为fly0_mc，“引用2”实例名为fly1_mc，辅助的实例名为：transp0、transp1。

　　9.新建一个图层改名为action，然后按F9打开动作面板，输入如下动作：

probability = 100;
scene_width = 500;
scene_height = 290;
speed = 0.03;
depth = 15;
MovieClip.prototype.smoothMove = function (speed, targetx, targety) {
this._x += speed*(targetx-this._x);
this._y += speed*(targety-this._y);
};
MovieClip.prototype.rotateTo = function (targetx, targety) {
var diffX = targetx-this._x;
var diffY = targety-this._y;
this._rotation = Math.atan2 (diffY, diffX)*180/Math.PI;
};
_root.transp0.onEnterFrame = function () {
if (random (probability) == 1) {
  target0X = random (scene_width);
  target0Y = random (scene_height);
}
this._visible = 0;
this.smoothMove (speed, target0X, target0Y);
};
_root.transp1.onEnterFrame = function () {
if (random (probability) == 1) {
  target1X = random (scene_width);
  target1Y = random (scene_height);
}
this._visible = 0;
this.smoothMove (speed, target1X, target1Y);
};
_root.fly0_mc.onEnterFrame = function () {
this.smoothMove (speed, transp0._x, _root.transp0._y);
this.rotateTo (_root.transp0._x, _root.transp0._y);
};
_root.fly1_mc.onEnterFrame = function () {
this.smoothMove (speed, transp1._x, _root.transp1._y);
this.rotateTo (_root.transp1._x, _root.transp1._y);
};
_root.shadow0_mc.onEnterFrame = function () {
this.smoothMove (speed, transp0._x, _root.transp0._y+depth);
this.rotateTo (_root.transp0._x, _root.transp0._y+depth);
};
_root.shadow1_mc.onEnterFrame = function () {
this.smoothMove (speed, transp1._x, _root.transp1._y+depth);
this.rotateTo (_root.transp1._x, _root.transp1._y+depth);
};