テクスチャ生成実験

ボロノイ図からの派生によるテクスチャ生成の実験
制御点をドラッグで移動
カーソルキー上下で生成タイプ変更

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license : MIT License
modified : 2009-12-19 22:18:25

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//   
// ボロノイ図からの派生によるテクスチャ生成の実験
//
// 制御点をドラッグで移動
// カーソルキー上下で生成タイプ変更
//
package {      
    import flash.display.Sprite;      
    import flash.events.*;      
    [SWF(width="465", height="465", backgroundColor="0xFFFFFF", frameRate="15")] 
         
    public class FlashTest extends Sprite {      
        public function FlashTest() {      
            Main = this;      
            initialize();      
            stage.addEventListener(Event.ENTER_FRAME,update);       
            stage.addEventListener(KeyboardEvent.KEY_DOWN, keyCheckDown);       
        }      
    }      
}          
    
import flash.display.Sprite;       
import flash.events.* 
import flash.text.TextField;      
import flash.geom.*; 
import flash.utils.getTimer; 
import flash.ui.Keyboard; 
var Main:Sprite;      
var SCREEN_W:Number = 465; 
var SCREEN_H:Number = 465; 
var Text:TextField     
var Text2:TextField

var Tex:ProcTex; 
var BITMAP_W:int = 128; 
var BITMAP_H:int = 128; 
var Pnt:Vector.<ControlPoint> = new Vector.<ControlPoint>; 
var Type:int = 0;
var TypeMax:int = 4;

// 初期化
function initialize():void{      
    Tex = new ProcTex( BITMAP_W, BITMAP_H ); 
    Tex.Bmp.x = 0; 
    Tex.Bmp.y = 0; 
     
    Text = new TextField();      
    Text.text = "生成中...";    
    Text.autoSize = "left"; 
    Main.addChild(Text);

Text2 = new TextField();      
    Text2.text = "";    
    Text2.autoSize = "left"; 
    Text2.y = 16; 
    Main.addChild(Text2);

// 制御点の設置
    Pnt[0] = new ControlPoint( new Point(SCREEN_W/2-70, SCREEN_H/2+40) ); 
    Pnt[1] = new ControlPoint( new Point(SCREEN_W/2-150,   SCREEN_H/2-120) ); 
    Pnt[2] = new ControlPoint( new Point(SCREEN_W/2+0,   SCREEN_H/2-50) ); 
    Pnt[3] = new ControlPoint( new Point(SCREEN_W/2+160,   SCREEN_H/2-130) ); 
    Pnt[4] = new ControlPoint( new Point(SCREEN_W/2+100,   SCREEN_H/2+120) ); 
    Pnt[5] = new ControlPoint( new Point(SCREEN_W/2-140,   SCREEN_H/2+140) ); 
    Pnt[6] = new ControlPoint( new Point(SCREEN_W/2+10,    SCREEN_H/2+180) ); 
    Pnt[7] = new ControlPoint( new Point(SCREEN_W/2-40,    SCREEN_H/2-180) ); 
    Pnt[8] = new ControlPoint( new Point(SCREEN_W/2-190,    SCREEN_H/2-10) ); 
    Pnt[9] = new ControlPoint( new Point(SCREEN_W/2+180,    SCREEN_H/2-10) );

}

// 更新
function update(e :Event):void{      
    var time:int = getTimer();  
        
    Tex.draw();

var endTime:int = getTimer() - time; 
    Text.text = " 生成時間：" + endTime + "[ms] TYPE=" + Type;    
}

import flash.display.Bitmap;  
import flash.display.BitmapData;

// テクスチャ生成クラス
class ProcTex{ 
    public var BmpData:BitmapData;  
    public var TmpBmpData:BitmapData;  
    public var Bmp:Bitmap; 
    public var Width:int; 
    public var Height:int; 
    public var pAry:Array;

public function ProcTex( w:int, h:int ){ 
        Width = w; 
        Height = h; 
        BmpData = new BitmapData(Width, Height, false, 0xffffff);  
        TmpBmpData = new BitmapData(Width, Height, false, 0xffffff);  
        Bmp = new Bitmap(BmpData);  
        Bmp.x = 0.0; 
        Bmp.y = 0.0; 
        Bmp.scaleX = 4; 
        Bmp.scaleY = 4; 
        Main.addChild(Bmp);       
    }

public function draw():void{ 
      pAry = new Array();
      var num:int = Pnt.length;
      for( var i:int=0; i<num; i++ ){
        pAry[i] = new Object;
        pAry[i].x = Pnt[i].Sp.x * 0.25;
        pAry[i].y = Pnt[i].Sp.y * 0.25;
       }

switch( Type ){
        case 0:  drawBmpData0( BmpData );     break;
        case 1:  drawBmpData1( BmpData );     break;
        case 2:  drawBmpData2( BmpData );     break;
        case 3:  drawBmpData3( BmpData );     break;
        case 4:  drawBmpData4( BmpData );     break;
        } 
    }

public function drawBmpData0( bmpData:BitmapData ):void{ 
      var num:int = pAry.length;
       var i:int, len:int, min:int, min2:int, min3:int, min4:int, dx:int, dy:int, dist:int;
       var col:int; 
        for( var x:int=0; x<Width; x++ ){  
            for( var y:int=0; y<Height; y++ ){
                 min = 999999;
                min2 = 999999;
                min3 = 999999;
                min4 = 999999;
                for( i=0; i<num; i++ ){
                    dx = x - pAry[i].x;
                    dy = y - pAry[i].y;
                    dx *= dx;
                    dy *= dy;
                    dist = dx+dy;
                    
                    if( min4 > dist ) min4 = dist;
                    if( min3 > min4 ) { min4 = min3; min3 = dist; }
                    if( min2 > min3 ) { min3 = min2; min2 = dist; }
                    if( min > min2 ) { min2 = min; min = dist; }
                }
                min = Math.sqrt(min);
                min2 = Math.sqrt(min2);
                min3 = Math.sqrt(min3);
                min4 = Math.sqrt(min4);

col = 1*min4 + 1*min3 + 18*min2 - 8*min;
                col = col / 4 - 4;
                if( col > 255 ) col = 255;
                if( col < 0 ) col = 0;
              //  col = 255 - col;
                bmpData.setPixel(x, y, col/2+col/4 + (col<<8) + (col/4<<16));  
            } 
        }  
    }

public function drawBmpData1( bmpData:BitmapData ):void{ 
      var num:int = pAry.length;
       var i:int, len:int, min:int, min2:int, min3:int, min4:int, dx:int, dy:int, dist:int;
       var col:int; 
        for( var x:int=0; x<Width; x++ ){  
            for( var y:int=0; y<Height; y++ ){
                min = 999999;
                min2 = 999999;
                min3 = 999999;
                min4 = 999999;
                for( i=0; i<num; i++ ){
                    dx = x - pAry[i].x;
                    dy = y - pAry[i].y;
                    if( dx < 0 ) dx *= -1;
                    if( dy < 0 ) dy *= -1;
                    dist = dx+dy;
                    
                    if( min4 > dist ) min4 = dist;
                    if( min3 > min4 ) { min4 = min3; min3 = dist; }
                    if( min2 > min3 ) { min3 = min2; min2 = dist; }
                    if( min > min2 ) { min2 = min; min = dist; }
                }
                col = 1*min4 + 1*min3 + 18*min2 - 8*min;
                col = col / 3 - 32;
                if( col > 255 ) col = 255;
                if( col < 0 ) col = 0;
                bmpData.setPixel(x, y, col + (col<<8) + (col<<16));  
            } 
        }  
    }

public function drawBmpData2( bmpData:BitmapData ):void{ 
      var num:int = pAry.length;
       var i:int, len:int, min:int, min2:int, min3:int, min4:int, dx:int, dy:int, dist:int;
       var col:int; 
        for( var x:int=0; x<Width; x++ ){  
            for( var y:int=0; y<Height; y++ ){
                min = 999999;
                min2 = 999999;
                min3 = 999999;
                min4 = 999999;
                for( i=0; i<num; i++ ){
                    dx = x - pAry[i].x;
                    dy = y - pAry[i].y;
                    dx *= dx;
                    dy *= dy;
                    dist = dx+dy;
                    
                    if( min4 > dist ) min4 = dist;
                    if( min3 > min4 ) { min4 = min3; min3 = dist; }
                    if( min2 > min3 ) { min3 = min2; min2 = dist; }
                    if( min > min2 ) { min2 = min; min = dist; }
                }
                min = Math.sqrt(min);
                min2 = Math.sqrt(min2);
                min3 = Math.sqrt(min3);
                min4 = Math.sqrt(min4);
                col = -2*min4 - 2*min3 + 8*min2 + 5*min;
                col = col / 2 + 64;
                if( col > 255 ) col = 255;
                if( col < 0 ) col = 0;
                col = 255 - col;
                   bmpData.setPixel(x, y, col/2+col/3 + (col/2+col/8<<8) + (col<<16));  
            } 
        }  
    }

public function drawBmpData3( bmpData:BitmapData ):void{ 
      var num:int = pAry.length;
       var i:int, len:int, min:int, min2:int, min3:int, min4:int, dx:int, dy:int, dist:int;
       var col:int; 
        for( var x:int=0; x<Width; x++ ){  
            for( var y:int=0; y<Height; y++ ){
                min = 999999;
                min2 = 999999;
                min3 = 999999;
                min4 = 999999;
                for( i=0; i<num; i++ ){
                    dx = x - pAry[i].x;
                    dy = y - pAry[i].y;
                    dx *= dx;
                    dy *= dy;
                    dist = dx+dy;
                    
                    if( min4 > dist ) min4 = dist;
                    if( min3 > min4 ) { min4 = min3; min3 = dist; }
                    if( min2 > min3 ) { min3 = min2; min2 = dist; }
                    if( min > min2 ) { min2 = min; min = dist; }
                }
                min = Math.sqrt(min);
                min2 = Math.sqrt(min2);
                min3 = Math.sqrt(min3);
                min4 = Math.sqrt(min4);
                col = 0*min4 + 1*min3 * min2 + min / 2;
                col = col / 3 - 96;
                if( col > 255 ) col = 255;
                if( col < 0 ) col = 0;
                col = 255 - col;
                   bmpData.setPixel(x, y, col + (col<<8) + (col<<16));  
            } 
        }  
    }

import frocessing.color.ColorHSV; 
    public function drawBmpData4( bmpData:BitmapData ):void{ 
      var num:int = pAry.length;

var colTbl:Array = new Array();
      for( i=0; i<num; i++ ){
          colTbl[i] = new ColorHSV(i*36-18, 0.5, 1).value32;
      }
       var i:int, len:int, min:int, min2:int, min3:int, min4:int, dx:int, dy:int, dist:int;
       var col:int, no:int; 
        for( var x:int=0; x<Width; x++ ){  
            for( var y:int=0; y<Height; y++ ){
                min = 999999;
                min2 = 999999;
                min3 = 999999;
                min4 = 999999;
                for( i=0; i<num; i++ ){
                    dx = x - pAry[i].x;
                    dy = y - pAry[i].y;
                    dx *= dx;
                    dy *= dy;
                    dist = dx+dy;
                    
                    if( min4 > dist ) min4 = dist;
                    if( min3 > min4 ) { min4 = min3; min3 = dist; }
                    if( min2 > min3 ) { min3 = min2; min2 = dist; no = i}
                    if( min > min2 ) { min2 = min; min = dist; }
                }
                min = Math.sqrt(min);
                min2 = Math.sqrt(min2);
                min3 = Math.sqrt(min3);
                min4 = Math.sqrt(min4);
                col = -1*min4 - 60*min3*min2/256 + 10*min2 + 1*min;
                col = col * 3 + 64;
                if( col > 255 ) col = 255;
                if( col < 0 ) col = 0;
                col = 255 - col;
                col = col*col / 256;
                col = 255 - col;
                col = (colTbl[no]&0xff)*col/0xff +
                      ((((colTbl[no]&0xff00)>>8)*col/0xff)<<8) +
                      ((((colTbl[no]&0xff0000)>>16)*col/0xff)<<16);

//bmpData.setPixel(x, y, col + col*0x100 + col * 0x10000);  
                bmpData.setPixel(x, y, col);

} 
        }  
    }

}

// 制御点マーカークラス
class ControlPoint{  
    public var Sp:Sprite;  
    public var isEnable:Boolean = false; 
    public var Pos:Point; 
    public function ControlPoint( p:Point ){  
        Sp=new Sprite();    
        Pos = p;  
        Sp.x = Pos.x;  
        Sp.y = Pos.y; 
        setEnable( true ); 
        Main.stage.addChild(Sp);

Sp.addEventListener(MouseEvent.MOUSE_UP,   function (event:MouseEvent):void{ Sp.stopDrag(); });  
        Sp.addEventListener(MouseEvent.MOUSE_DOWN, function (event:MouseEvent):void{ if( isEnable ) Sp.startDrag(); });      
    }

public function setEnable( flg:Boolean ):void{     
        if( flg == true && isEnable == false ){ 
            Sp.graphics.clear(); 
            Sp.graphics.lineStyle(1.4,0x000000);        
            Sp.graphics.beginFill(0xe0d000,1);    
            Sp.graphics.drawCircle(0,0,5.0);    
            Sp.graphics.endFill();    
        }else if( flg == false && isEnable == true ){ 
            Sp.graphics.clear(); 
        } 
        isEnable = flg; 
    } 
}

function keyCheckDown(event:KeyboardEvent):void {       
    switch (event.keyCode){       
        case Keyboard.UP:    Type--; break;     
        case Keyboard.DOWN:  Type++; break; 
    }      
    if( Type < 0 )        Type = TypeMax-1; 
    if( Type >= TypeMax ) Type = 0; 
}

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