A wave effect animation of Flash as realization

The main use of masks and begingradientfill to achieve, the machine requirements are relatively high, the machine is not a good friend of the point of caution ...

Click to view Flash:
http://www.alixixi.com/UploadPic/2007-7/200778135930565.swf

The main code is as follows: var wavearray:array = new Array ();
var rel_btn:movieclip = this.loader.btn;
This.createemptymovieclip ("GRADIENT_MC", 3);
Gradient_mc.cacheasbitmap = true;
Mc.cacheasbitmap = true;
OnMouseDown = function () {
New Wave (Wavearray);
};
Onenterframe = Draw;
function Draw () {
With (GRADIENT_MC) {
Clear ();
Spreadmethod = "pad";
Interpolati;
Filltype = "Radial";
colors = [0x00ffff, 0xFFFFFF, 0X00FFFF];
var wal:number = wavearray.length;
for (var i:number = 0; i<wal; i++) {
Alphas = [0, wavearray.a, 0];
var t:number = wavearray.r-10;
ratios = [T>0 t:0, WAVEARRAY.R, wavearray.r+10];
Focalpointratio = 0;
Matrix = {matrixtype: "box", x:wavearray.x-550, y:wavearray.y-400, w:550*2, h:400*2, R:180*math.pi};
Begingradientfill (Filltype, colors, alphas, ratios, Matrix, Spreadmethod, Interpolationmethod, Focalpointratio);
MoveTo (0, 0);
LineTo (0, 400);
LineTo (550, 400);
LineTo (550, 0);
LineTo (0, 0);
Endfill ();
}
}
Mc.setmask (GRADIENT_MC);
The code in}WAVE.AS is as follows:///////////////////////////////////////////http://www.25swf.com
Code by 25SWF
Tinsgao@126.com
2006.11.23
////////////////////////////////////////////////////////////////////
Import Flash.geom.Point;
Class Wave {
field/////////////////////////
private var m_alpha:number = 100;
private var m_ratio:number = 0;
private Var M_point:point;
private Var Rel_array:array;
private Var M_iner:number;
attribute////////////////////
function Get A () {
return m_alpha;
}
function Get R () {
return m_ratio;
}
function Get X () {
return m_point.x;
}
function Get Y () {
return M_POINT.Y;
}
/////////////////////////////////////////////////////////
function Wave (_array:array) {
This.rel_array = _array;
_array.push (this);
M_point = new Point (_root._xmouse, _root._ymouse);
This.m_iner = setinterval (function (_rel) {
_rel.m_alpha--;
_rel.m_ratio+=2;
if (_rel.m_alpha<=1) {
_rel. Del ();
Clearinterval (_rel.m_iner);
}
}, this);
}
function Del () {
For (Var A in Rel_array) {
if (rel_array[a] = = this) {
Rel_array.splice (A, 1);
}
}
Delete this;
}
}