/**
* Copyright beinteractive ( http://wonderfl.net/user/beinteractive )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/taLu
*/
// forked from checkmate's fladdict challenge for professionals
/**
* Theme:
* Play with BitmapPatterBuilder.
* Purpose of this trial is to find the possibility of the dot pattern.
*
* by Takayuki Fukatsu aka fladdict
**/
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
import flash.display.Sprite;
import flash.display.StageScaleMode;
import flash.events.Event;
public class Professional extends Sprite {
public function Professional() {
stage.scaleMode = StageScaleMode.NO_SCALE;
_size = 1;
_bit = 0;
_prevDate = null;
addEventListener(Event.ENTER_FRAME, update);
}
private var _size:uint;
private var _bit:uint;
private var _prevDate:Date;
// Explore all bitmap patterns!
private function update(e:Event):void
{
var date:Date = new Date();
if (_prevDate == null || _prevDate.getUTCSeconds() != date.getUTCSeconds()) {
var b:uint = _bit;
var pattern:Array = [];
for (var x:uint = 0; x < _size; ++x) {
var line:Array = [];
for (var y:uint = 0; y < _size; ++y) {
line.push(b & 0x01);
b >>= 1;
}
pattern[x] = line;
}
if (++_bit >= Math.pow(2, _size * _size)) {
++_size;
_bit = 0;
}
var bitmap:BitmapData = BitmapPatternBuilder.build(pattern, [0xffffffff, 0xff000000]);
var g:Graphics = graphics;
g.clear();
g.beginBitmapFill(bitmap);
g.drawRect(0, 0, 480, 480);
g.endFill();
}
_prevDate = date;
}
}
}
/**-----------------------------------------------------
* Use following BitmapPatternBuilder class
*
* DO NOT CHANGE any codes below this comment.
*
* -----------------------------------------------------
*/
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
class BitmapPatternBuilder{
/**
* creates BitmapData filled with dot pattern.
* First parameter is 2d array that contains color index for each pixels;
* Second parameter contains color reference table.
*
* @parameter pattern:Array 2d array that contains color index for each pixel.
* @parameter colors:Array 1d array that contains color table.
* @returns BitmapData
*/
public static function build(pattern:Array, colors:Array):BitmapData{
var bitmapW:int = pattern[0].length;
var bitmapH:int = pattern.length;
var bmd:BitmapData = new BitmapData(bitmapW,bitmapH,true,0x000000);
for(var yy:int=0; yy<bitmapH; yy++){
for(var xx:int=0; xx<bitmapW; xx++){
var color:int = colors[pattern[yy][xx]];
bmd.setPixel32(xx, yy, color);
}
}
return bmd;
}
/**
* short cut function for Graphics.beginBitmapFill with pattern.
*/
public static function beginBitmapFill(pattern:Array, colors:Array, graphics:Graphics):void{
var bmd:BitmapData = build(pattern, colors);
graphics.beginBitmapFill(bmd);
bmd.dispose();
}
}