package { import flash.display.*; import flash.events.*; import flash.geom.*; import flash.filters.*; public class InvertingIn5DifferentWays extends Sprite { private var baseMap:BitmapData; private var mode:int = 0; private var totalModes:int = 5; public function InvertingIn5DifferentWays () { init(); } private function init():void { baseMap = new BitmapData( 400, 400, false, 0 ); baseMap.perlinNoise( 64, 64, 1, 0xbada55, false, false, 1, true ); addChild( new Bitmap( baseMap ) ); stage.addEventListener( KeyboardEvent.KEY_DOWN, nextMode ) } private function nextMode( event:KeyboardEvent ):void { switch ( mode ) { case 0: baseMap.colorTransform( baseMap.rect, new ColorTransform(-1, -1, -1, 1, 255, 255, 255, 0) ); break; case 1: var tmp:BitmapData = new BitmapData( baseMap.width, baseMap.height, false, 0xffffff ); baseMap.draw( tmp, null, null, "difference"); break; case 2: baseMap.applyFilter( baseMap, baseMap.rect, baseMap.rect.topLeft, new ColorMatrixFilter([-1,0,0,0,255, 0,-1,0,0,255,0,0,-1,0,255,0,0,0,1,0] ) ); break; case 3: baseMap.applyFilter( baseMap, baseMap.rect, baseMap.rect.topLeft, new ConvolutionFilter(1, 1, [-1], 0, 255)); break; case 4: var r:Array= []; var g:Array= []; var b:Array= []; for ( var i:int = 256; --i >-1;) { r[255-i] = i << 16; g[255-i] = i << 8; b[255-i] = i; } baseMap.paletteMap( baseMap, baseMap.rect, baseMap.rect.topLeft, r, g, b, null) break; } mode = (mode+1) % totalModes; } } }