/**
* Copyright amashio ( http://wonderfl.net/user/amashio )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/xRzB
*/
package{
import flash.display.Sprite;
import flash.events.Event;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.filters.DisplacementMapFilter;
import flash.filters.ColorMatrixFilter;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.display.Shape;
import net.hires.debug.States;
public class Main extends Sprite{
public static const STAGE_W:uint = 465;
public static const STAGE_H:uint = 465;
public static const _H_RATE:Number = 4;// 上下の圧縮割合
//雲模様
private var _perlinNoiseBitmapData:BitmapData;
private var _seet:int = Math.random() * init.MAX_VALUE;
private var _perlinNoiseSize:Number = 0.20; //
private var _perlinNoiseSizeW:int = STAGE_W * _perlinNoiseSize;
private var _perlinNoiseSizeH:int = STAGE_H * _perlinNoiseSize * _H_RATE;
private var _cloudSize:int = _perlinNoiseSize * 100;
private var _octaves:int = 4;//
private var _offsetList:Array = [];
private var _offsetSpeedListX:Array = [0.4, 0.3, 0.2, -0.05];
private var _offsetSpeedListY:Array = [0.2, 0.1, -0.05, -0.1];
//立体化
private var _displacementBitmapData:BitmapData;
private var _displacementMapFilter:DisplacementMapFilter;
private var _offsetMatrix:Matrix;
//射光
private var _brightLength:uint = 8;
private var _brightMatrices:Vector.<Matrix>;
private var _colorTransform1:ColorTransform = new ColorTransform(1.3, 1.3, 1.3, 1, 0, 0, 0, 0);
private var _colorTransform2:ColorTransform = new ColorTransform(0.5, 0.5, 0.5, 1, 100, 100, 100, 0);
private var _colorTransform3:ColorTransform = new ColorTransform(0.25, 0.25, 0.25, 1, 0, 0, 0, 0);
private var _colorTransform4:ColorTransform = new ColorTransform(0.25, 0.25, 0.25, 1, -10, -10, -10, 0);
//色変換
private var _paletteBimmapData:BitmapData;
private var _palette:Array = [];
private var _nullPalette:Array = [];
//
private var _scaleChangeBitmap:Bitmap;
//
private var _cover:Shape;
//
private var _point:Point = new Point(0, 0);
private var _rectSmall:Rectangle = new Rectangle(0, 0, _perlinNoiseSizeW, _perlinNoiseSizeH);
public function Main(){
addEventListener(Event.ADDED_TO_STAGE, init);
}
//
private function init(event:Event):void{
removeEventListener(Evet.ADDED_TO_STAGE, init);
var i:int;
//SWF設定
stage.frameRate = 30;
stage.quality = StageQuality.HIGH;
//雲模様データを用意する
_perlinNoiseBitmapData = new BitmapData(_perlinNoiseSizeW, _perlinNoiseSizeH, false);
for(i = 0; i < _octaves; i++){
_offsetList.push(new Point());
}
//立体化データを用意する
_displacementBitmapData = new BitmapData(_perlinNoiseSizeW, _perlinNoiseSizeH, false);
_displacementMapFilter = new DisplacementMapFilter(_perlinNoiseBitmapData, _point, 0, BitmapDataChannel.RED, 0, -120, DisplacementMapFilter.CLAMP);
_offsetMatrix = new Matrix();
_offsetMatrix.scale(1, 0.95);
//射光データを用意する
_brightMatrices = new Vector.<Matrix>(_brightLength, false);
for(i = 0; i < _brightLenght; i++){
if(i == 0){
_brightMatrices[i] = new Matrix();
}else{
_brightMatrices[i] = _brightMatrces[i-1].clone();
}
_brightMatrices[i].translate(-perlinNoiseSizeW/2, 0);
_brightMatrices[i].scale(1.03, 1.01);
_brightMatrices[i].translate(_perlinNoiseSizeW/2, 2);
}
//色変換データを用意する
createGradation();
//サイズ
_scaleChangeBitmap = new Bitmap(_displacementBitmapData);
_scaleChangeBitmap.scaleX = 1 / _perlinNoiseSize;
_scaleChangeBitmap.scaleY = 1 / _perlinNoiseSize / _H_RATE;
_scaleChangeBitmap.smoothing = true;
//白っぽいカバー
_cover = new Shape();
var matrix:Matrix = new Matrix();
matrix.createGradientBox(_perlinNoiseSizeW, _perlinNoiseSizeH, Math.PI/2);
_cover.graphics.beginGradientFill(GradientType.LINEAR, [0x808080, 0x202020], [1, 1], [128, 255], matrix);
_cover.graphics.drawRect(0, 0, _perlinNoiseSizeW, _perlinNoiseSizeH);
//表示
addChild(_scaleChangeBitmap);
addChild(new Stats());
addEventListener(Event.ENTER_FRAME, frame);
}
//
private function createGradation():void{
var tmpShape:Shape = new Shape();
var tmpBitmap:BitmapData = new BitmapData(256, 1, false);
var matrix:Matrix = new Matrix();
var colorList:Array = [0x100010, 0x301020, 0x602030, 0xD08040, 0xFFF080, 0xFFFFF0];
var alphaList:Array = [1, 1, 1, 1, 1, 1];
var ratioList:Array = [0, 20, 80, 160, 220, 255];
matrix.createGradientBox(255, 0);
tmpShape.graphics.beginGradientFill(GradientType.LINEAR, colorList, alphaList, ratioList, matrix);
tmpShape.graphics.drawRect(0, 0, 256, 1);
tmpBitmap.draw(tmpShape);
for(var i:int = 0; i < 256; i++){
_palette.push(tmpBitmap.getPixel(i, 0));
_nullPalette.push(0x000000);
}
}
private function frame(event:Event):void{
var i:int;
//
for(i = 0; i < _octaves; i++){
_offsetList[i].x += _offsetSpeedListX[i];
_offsetList[i].y += _offsetSpeedListY[i];
}
//
_perlinNoiseBitmapData.perlinNoise(_cloudSize, _cloudSize, _octaves, _seed, false, true, 0, true, _offsetList);
_displacementBitmapData.lock();
//
_displacementBitmapData.applyFilter(_perlinNoiseBitmapData, _rectSmall, _point, _displacementMapFilter);
_displacementBitmapData.draw(_perlinNoiseBitmapData, null, _colorTransform1, BlendMode.HARDLIGHT);
_displacementBitmapData.draw(_perlinNoiseBitmapData, _offsetMatrix, _colorTransform2, BlendMode.SUBTRACT);
_displacementBitmapData.scroll(0, 20);
_displacementBitmapData.fillRect(new Rectangle(0, 0, _displacementBitmapData.width, 20), 0x000000);
_displacementBitmapData.draw(_perlinNoiseBitmapData, null, _colorTransform3, BlendMode.ADD);
//
for(i = 0; i < _brightLength; i++){
_displacementBitmapData.draw(_displacementBitmaData, _brightMatrices[i], _colorTransform4, BlendMode.ADD, null, true);
}
//
_displacementBitmapData.paletteMap(_displacementBitmapData, _rectSmall, _point, _palette, _nullPalette, _nullPalette);
_displacementBitmapData.draw(_cover, null, null, BlendMode.OVERLAY);
_displacementBitmapData.unlock();
}
}
}
