[Flash Basic theory Class 15] Cool mouse [target move]

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Before we study, let's review the previous (functional Code 07< >)

Target Move formula:

MC. Current coordinates = (MC. Target coordinates-MC. Current coordinates) * A easing constant (0 < A < 1)

For example:

There is a movie clip on the stage, with the instance named MC, which moves it to the x=400, y=300 position

mc.Tox = 400;
mc.Toy = 300;
mc.onEnterFrame = function() {
　 this._x += (this.Tox - this._x) * 0.3;
　 this._y += (this.Toy - this._y) * 0.3;
　　　 //更新每个实例的坐标了，可理解为:
　　　 //实例的 X 坐标 = 自己的X坐标 +（目标的X坐标–自己的X坐标）*0.3
　　　 //实例的 Y 坐标 = 自己的Y坐标 +（目标的Y坐标–自己的Y坐标) *0.3
};

Instance One

Ideas:

1. Copy the num mouse, the mouse's transparency diminishing (if I is incremented, n-i is diminishing);

2. Use the NUM mouse as the current mouse, others are followed;

3. Follow the principle of a previous mouse position as the target coordinates, so that the next mouse position move forward one.

Step 1:

Draw a mouse, save as a movie clip, connect-> Export-> Marker "mouse"

Step 2:

Add as code:

Mouse.hide();
//隐藏原有鼠标
var Num = 10;
//鼠标跟随的数量
for (var i = 0; i < Num; i++) {

　_root.attachMovie("mouse", "m"+i, i);
　//复制出Num个鼠标的影片剪辑
　this["m"+i]._alpha = (Num-i) / Num * 100;
　//设置出渐隐效果，每个鼠标的透明度递减
}
_root.onEnterFrame = function() {
　this["m"+0]._x = _xmouse;
　this["m"+0]._y = _ymouse;
　//让this["m"+0]作为当前鼠标
　for (var i = 1; i < Num; i++) {

　 this["m"+i]._x += ((this["m"+(i-1)]._x) - this["m"+i]._x) * 0.5;
　 this["m"+i]._y += ((this["m"+(i-1)]._y) - this["m"+i]._y) * 0.5;
　}
　//令后一个鼠标跟随前一个鼠标的位置，缓动地向前一个鼠标接近
};