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
/**
* Copyright Nao_u ( http://wonderfl.net/user/Nao_u )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/zqZB
*/
//
// 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;
}