shuibo.txt

一个简单的flash水波效果

var damper = new flash.display.BitmapData(400, 128, false, 128);
var result = new flash.display.BitmapData(400, 128, false, 128);
var result2 = new flash.display.BitmapData(800, 256, false, 128);
var source = new flash.display.BitmapData(400, 128, false, 128);
var buffer = new flash.display.BitmapData(400, 128, false, 128);
var output = new flash.display.BitmapData(800, 150, true, 128);
var surface = flash.display.BitmapData.loadBitmap("surface");
var bounds = new flash.geom.Rectangle(0, 0, 400, 75);
var origin = new flash.geom.Point();
var matrix = new flash.geom.Matrix();
var matrix2 = new flash.geom.Matrix();
matrix2.a = matrix2.d = 2;
var wave = new flash.filters.ConvolutionFilter(3, 3, [1, 1, 1, 1, 1, 1, 1, 1, 1], 9, 0);
var damp = new flash.geom.ColorTransform(0, 0, 9.960937E-001, 1, 0, 0, 2, 0);
var water = new flash.filters.DisplacementMapFilter(result2, origin, 4, 4, 48, 48, "ignore");
attachBitmap(output, 0);
var ms = getTimer();
var frame = 0;
var mouseMove = false;
onMouseMove = function ()
{
    mouseMove = true;
};
onMouseUp = function ()
{
    onEnterFrame();
    mouseMove = false;
};
onEnterFrame = function ()
{
    if (mouseMove)
    {
        var _loc2 = _xmouse / 2;
        var _loc1 = _ymouse / 2;
        source.setPixel(_loc2 + 1, _loc1, 16777215);
        source.setPixel(_loc2 - 1, _loc1, 16777215);
        source.setPixel(_loc2, _loc1 + 1, 16777215);
        source.setPixel(_loc2, _loc1 - 1, 16777215);
        source.setPixel(_loc2, _loc1, 16777215);
    } // end if
    result.applyFilter(source, bounds, origin, wave);
    result.draw(result, matrix, null, "add");
    result.draw(buffer, matrix, null, "difference");
    result.draw(result, matrix, damp);
    result2.draw(result, matrix2, null, null, null, true);
    output.applyFilter(surface, new flash.geom.Rectangle(0, 0, 800, 150), origin, water);
    buffer = source;
    source = result.clone();
};
stop();