forked from: ocean
/**
* Copyright damionfeller ( http://wonderfl.net/user/damionfeller )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/gvAk
*/
// forked from zonnbe's ocean
package {
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.TriangleCulling;
import flash.display.Graphics;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Vector3D;
import flash.geom.Point;
import flash.geom.PerspectiveProjection;
import flash.geom.Utils3D;
import flash.geom.Matrix3D;
import flash.geom.Matrix;
import flash.utils.getTimer;
import net.hires.debug.Stats;
[SWF(frameRate='60',width='465',height='465',backgroundColor='0xFFFFFF')]
public class oceanBeta extends Sprite
{
//world
private var gravity:Number = 9.81;
private var fftDir:int = 0;
private var oceanSizeX:Number = 32;
private var oceanSizeY:Number = 32;
private var oceanGridSize:Number = 1;
private var oceanWindScaleX:Number = 0.1;
private var oceanWindScaleY:Number = 0.1;
private var oceanLambda:Number = 1.2;
//map
private var oceanMapSizeX:int = oceanSizeX+0;
private var oceanMapSizeY:int = oceanSizeY+0;
private var heights:Vector.<Vector.<Complex>> = new Vector.<Vector.<Complex>>(); //Vector.<Complex> = new Vector.<Complex>();
private var horizontals:Vector.<Vector.<Vector.<Number>>> = new Vector.<Vector.<Vector.<Number>>>();
private var bmpd:BitmapData = new BitmapData(oceanSizeX, oceanSizeY, false, 0x0);
private var oreal:Vector.<Number> = new Vector.<Number>();
private var oimag:Vector.<Number> = new Vector.<Number>();
private var fft:FFT = new FFT(oceanSizeX);
// surgery
private var vertices:Vector.<Number> = new Vector.<Number>();
private var uvs:Vector.<Number> = new Vector.<Number>();
private var indices:Vector.<int> = new Vector.<int>();
private var normals:Vector.<Vector3D> = new Vector.<Vector3D>();
private var faces:Vector.<Face> = new Vector.<Face>();
private var gridSizeX:Number = 25;
private var gridSizeY:Number = 25;
private var _vertexNormal:Vector.<Vector3D> = new Vector.<Vector3D>();
private var _light:Light = new Light();
private var viewport:Sprite = new Sprite();
private var _projector:PerspectiveProjection;
private var _projectionMatrix:Matrix3D;
private var texture:Material = new Material().setColor(0x043055, 1, 64, 128, 128, 12, 0, false);
//private var texture:Material = new Material().setColor(0x043055, 1, 64, 192, 0, 0, 0, false);
private var cp:Point = new Point();
private var _vertexOnWorld:Vector.<Number> = new Vector.<Number>();
private var _vout:Vector.<Number> = new Vector.<Number>();
// interaction
private var dragging :Boolean = false;
private var drag_mode :Boolean = false;
private var old_mouse :Point = new Point();
private var new_mouse :Point = new Point();
private var trans :Matrix3D = new Matrix3D();
//Gradient Editor
private var _ed1:GradientEditor;
private var _ed2:GradientEditor;
private var _canvas1:Sprite = new Sprite;
private var _canvas2:Sprite = new Sprite;
private var _bmp:Bitmap = new Bitmap(texture.colorTable);
private var mouse:Sprite;
public function oceanBeta()
{
cp.x = stage.stageWidth / 2;
cp.y = stage.stageHeight / 2;
viewport.x = cp.x;
viewport.y = cp.y;
mouse = new Sprite();
addChild(mouse);
mouse.addChild(new Bitmap(new BitmapData(stage.stageWidth, stage.stageHeight, false, 0xFFFFFF)));
mouse.addChild(viewport);
_projector = new PerspectiveProjection();
_projectionMatrix = _projector.toMatrix3D();
var args1:Array = ["linear", [0, 0x043055], [1, 0], [0, 240]];
_ed1 = new GradientEditor(this, 10, 5, args1, _onGradientChange);
var args2:Array = ["linear", [0, 0x043055], [2, 2], [0, 255]];
_ed2 = new GradientEditor(this, 10, 65, args2, _onGradientChange);
_canvas1.addChild(_canvas2);
_canvas2.blendMode = "add";
addChild(_bmp);
_bmp.scaleX = _bmp.scaleY = 0.5;
_bmp.x = _bmp.y = 465-128;
_onGradientChange();
with(addChild(new Bitmap(bmpd)))
{
scaleX = scaleY = 3; x = (stage.stageWidth - width) / 2; y = stage.stageHeight - height;
}
with (addChild(new Stats()))
{
y = stage.stageHeight - height;
}
boot();
}
private function _onGradientChange(e:Event = null):void {
if(_ed1 == null || _ed2 == null) return;
var g1:Graphics = _canvas1.graphics;
var g2:Graphics = _canvas2.graphics;
var mtx:Matrix = new Matrix();
mtx.createGradientBox(256, 256, 0, 0, 0);
g1.clear();
g1.beginGradientFill("linear", _ed1.colors, _ed1.alphas, _ed1.ratios, mtx);
g1.drawRect(0, 0, 256, 256);
g1.endFill();
mtx.createGradientBox(256, 256, Math.PI/2, 0, 0);
g2.clear();
g2.beginGradientFill("linear", _ed2.colors, _ed2.alphas, _ed2.ratios, mtx);
g2.drawRect(0, 0, 256, 256);
g2.endFill();
texture.colorTable.draw(_canvas1);
texture.colorTable.draw(_canvas1, null, null, "alpha");
}
private function boot():void
{
var i:int, j:int, k:int;
for(j = 0; j < oceanMapSizeY; j++)
{
heights.push(new Vector.<Complex>());
horizontals.push(new Vector.<Vector.<Number>>());
for(i = 0; i < oceanMapSizeX; i++)
{
vertices.push(i*gridSizeX-(gridSizeX*oceanMapSizeX)/2, 0, j*gridSizeY-(gridSizeY*oceanMapSizeY)/2);
uvs.push(Number(0.0), Number(0.0), Number(0.0));
normals.push(new Vector3D());
heights[j].push(new Complex());
horizontals[j].push(new Vector.<Number>);
oreal.push(Number(0.0));
oimag.push(Number(0.0));
for (k = 0; k < 4; k++)
{
horizontals[j][i].push(Number(0.0));
}
}
}
_vertexNormal.length = vertices.length/3;
for (i=0; i<_vertexNormal.length; i++) _vertexNormal[i] = new Vector3D();
for (j = 0; j < oceanMapSizeY-1; j++)
{
for (i = 0; i < oceanMapSizeX-1; i++)
{
faces.push(new Face( i + j * oceanMapSizeX, (i + 1) + j * oceanMapSizeX, i + (j + 1) * oceanMapSizeX));
faces.push(new Face((i + 1) + j * oceanMapSizeX, (i + 1) + (j + 1) * oceanMapSizeX, i + (j + 1) * oceanMapSizeX));
indices.push(0, 0, 0, 0, 0, 0);
}
}
init();
}
private function init():void
{
var invSqrt2:Number = 1/Math.sqrt(2);
var aGlobal:Number = 0.001;
var rootOfPhillips:Number = 0.0;
var horizontal:Vector.<Number> = new Vector.<Number>(2,true);
var gv:Vector.<Number> = new Vector.<Number>(2,true);
var winds:Vector.<Number> = new Vector.<Number>(2,true);
winds[0] = 100*oceanWindScaleX;
winds[1] = 100*oceanWindScaleY;
var i:int, j:int;
for (i = 0; i < oceanSizeY; i++)
{
for (j = 0; j < oceanSizeX; j++)
{
horizontal[0]=horizontals[i][j][0]=2.0*Math.PI*(i-0.5*(oceanSizeX))/((oceanSizeX)*2.0);
horizontal[1]=horizontals[i][j][1]=2.0*Math.PI*(j-0.5*(oceanSizeY))/((oceanSizeY)*2.0);
horizontals[i][j][3]=horizontals[i][j][0]*horizontals[i][j][0]+horizontals[i][j][1]*horizontals[i][j][1];
horizontals[i][j][2]=Math.sqrt(horizontals[i][j][3]);
gauss(gv);
rootOfPhillips=Math.sqrt(phillips(aGlobal,horizontal,winds));
heights[i][j].real=invSqrt2*gv[0]*rootOfPhillips;
heights[i][j].imag=invSqrt2*gv[1]*rootOfPhillips;
}
}
stage.addEventListener(Event.ENTER_FRAME, processing);
mouse.addEventListener(MouseEvent.MOUSE_DOWN, onmouseDown);
stage.addEventListener(MouseEvent.MOUSE_UP, onmouseUp);
stage.addEventListener(MouseEvent.MOUSE_MOVE, onmouseMove);
}
private function processing(e:Event):void
{
//_light.setPosition(mouseX-232, mouseY-232, -100);
_light.setPosition(-232, 232, -100);
oceanSimulating(getTimer()/180*Math.PI/10);
bmpd.lock();
bmpd.fillRect(bmpd.rect, 0x0);
var i:int, j:int;
var h:int = 0;
var c:uint = 0;
for(j = 0; j < oceanMapSizeY; j++)
{
for(i = 0; i < oceanMapSizeX; i++)
{
vertices[(i + j * oceanMapSizeX) * 3 + 1] = oreal[i + j * oceanMapSizeX]*3;
h = (oreal[i + j * oceanMapSizeX]+10)/40 * 256;
if (h < 0) h = 0;
if (h > 255) h = 255;
c = h;
c += h << 8;
c += h << 16;
c += 0xFF000000;
bmpd.setPixel32(i,j,c);
}
}
bmpd.unlock();
project();
_calculateVertexNormal();
sort();
render(_light, texture);
}
private function project():void
{
var i0x3:int, i1x3:int, i2x3:int, x01:Number, x02:Number, y01:Number, y02:Number, z01:Number, z02:Number;
var matrix:Matrix3D = new Matrix3D();
matrix.transformVectors(vertices, _vertexOnWorld);
var verts:Vector.<Number> = _vertexOnWorld;
for each (var face:Face in faces) {
i0x3 = (face.i0<<1) + face.i0;
i1x3 = (face.i1<<1) + face.i1;
i2x3 = (face.i2<<1) + face.i2;
x01 = verts[i1x3] - verts[i0x3];
x02 = verts[i2x3] - verts[i0x3];
i0x3++; i1x3++; i2x3++;
y01 = verts[i1x3] - verts[i0x3];
y02 = verts[i2x3] - verts[i0x3];
i0x3++; i1x3++; i2x3++;
z01 = verts[i1x3] - verts[i0x3];
z02 = verts[i2x3] - verts[i0x3];
face.z = verts[i0x3] + verts[i1x3] + verts[i2x3];
face.normal.x = y01*z02 - y02*z01;
face.normal.y = z01*x02 - z02*x01;
face.normal.z = x01*y02 - x02*y01;
face.normal.normalize();
}
faces.sort(function(f1:Face, f2:Face) : Number { return f2.z - f1.z; });
}
private var uv:Point = new Point();
private function _calculateVertexNormal() : void {
var i:int, face:Face, normal:Vector3D;
for each (face in faces) {
_vertexNormal[face.i0].x += face.normal.x;
_vertexNormal[face.i0].y += face.normal.y;
_vertexNormal[face.i0].z += face.normal.z;
_vertexNormal[face.i0].w += 1;
_vertexNormal[face.i1].x += face.normal.x;
_vertexNormal[face.i1].y += face.normal.y;
_vertexNormal[face.i1].z += face.normal.z;
_vertexNormal[face.i1].w += 1;
_vertexNormal[face.i2].x += face.normal.x;
_vertexNormal[face.i2].y += face.normal.y;
_vertexNormal[face.i2].z += face.normal.z;
_vertexNormal[face.i2].w += 1;
}
i = 0;
for each (normal in _vertexNormal) {
normal.project();
Material.calculateTexCoord(uv, _light, normal);
uvs[i] = uv.x; i++;
uvs[i] = uv.y; i+=2;
normal.x = 0;
normal.y = 0;
normal.z = 0;
normal.w = 0;
}
}
private function sort():void
{
indices.length = 0;
for each (var face:Face in faces) indices.push(face.i0, face.i1, face.i2);
}
public function render(light:Light, material:Material) : void {
var tm:Matrix3D = new Matrix3D();
tm.identity();
tm.append(trans);
//tm.appendRotation(getTimer()/10, Vector3D.X_AXIS);
tm.appendRotation(15, Vector3D.X_AXIS);
//tm.appendRotation(getTimer()/1000, Vector3D.Y_AXIS);
tm.appendTranslation(0, 0, 1000);
Utils3D.projectVectors(tm, _vertexOnWorld, _vout, uvs);
viewport.graphics.clear();
viewport.graphics.beginBitmapFill(material.colorTable, null, false, true);
viewport.graphics.drawTriangles(_vout, indices, uvs);
viewport.graphics.endFill();
}
private function gauss(work:Vector.<Number>):void
{
var x1:Number;
var x2:Number;
var w:Number;
do
{
x1 = 2.0 * Math.random() - 1.0;
x2 = 2.0 * Math.random() - 1.0;
w = x1 * x1 + x2 * x2;
} while ( w >= 1.0 );
w = Math.sqrt( (-2.0 * Math.log( w ) ) / w );
work[0] = x1 * w;
work[1] = x2 * w;
}
private function phillips(a:Number, k:Vector.<Number>, wind:Vector.<Number>):Number
{
var k2:Number;
var v2:Number;
var EL:Number;
var Phk:Number;
k2 = k[0]*k[0]+k[1]*k[1];
v2 = wind[0]*wind[0]+wind[1]*wind[1];
EL = v2 / gravity;
if (k2==0)
{
return 0;
}
else
{
Phk = a*(Math.exp(-1/(k2*(EL)*(EL)))/(k2*k2))*((k[0]*wind[0]+k[1]*wind[1])*(k[0]*wind[0]+k[1]*wind[1])/(k2*v2))*Math.exp(-Math.sqrt(k2)*1.0);
return Phk;
}
}
private function oceanSimulating(timeStep:Number):void
{
var i:int, j:int;
var kvector:Vector.<Number> = new Vector.<Number>(2,true);
var klength:Number = 0;
var wkt:Number = 0;
var yHalf:int = (oceanSizeY)/2 + 1;
var yLine:int = 0;
var yLineMirr:int = 0;
var kNegIndex:int = 0;
var ri:int = 0;
var rj:int = 0;
for (i = 0; i < yHalf; ++i)
{
yLine = i*(oceanSizeY);
yLineMirr = (((oceanSizeY)-i)% (oceanSizeY))*(oceanSizeY);
for (j = 0; j < (oceanSizeX); ++j)
{
ri = (oceanSizeX) - i - 1;
rj = (oceanSizeX) - j - 1;
kvector[0]=horizontals[i][j][0];
kvector[1]=horizontals[i][j][1];
klength=horizontals[i][j][2];
wkt = Math.sqrt(klength * gravity) * timeStep;
kNegIndex = yLineMirr*(oceanSizeY) + (((oceanSizeY)-j)% (oceanSizeY));
oreal[j+i*oceanSizeX]=
heights[i][j].real*Math.cos(wkt) + heights[i][j].imag*Math.sin(wkt)
+ heights[ri][rj].real*Math.cos(wkt)
- heights[ri][rj].imag*Math.sin(wkt);
oimag[j+i*oceanSizeX]=
heights[i][j].imag*Math.cos(wkt) + heights[i][j].real*Math.sin(wkt)
- heights[ri][rj].imag*Math.cos(wkt)
- heights[ri][rj].real*Math.sin(wkt);
if (i != yHalf-1)
{
oimag[rj+ri*oceanSizeX]=
heights[i][j].real*Math.cos(wkt) + heights[i][j].imag*Math.sin(wkt)
+ heights[ri][rj].real*Math.cos(wkt)
- heights[ri][rj].imag*Math.sin(wkt);
oreal[rj+ri*oceanSizeX]=
heights[i][j].imag*Math.cos(wkt) + heights[i][j].real*Math.sin(wkt)
- heights[ri][rj].imag*Math.cos(wkt)
- heights[ri][rj].real*Math.sin(wkt);
}
}
}
fft.fft2d(oreal,oimag);
for (j = 0; j < oceanSizeY; j++)
{
for (i = 0; i < oceanSizeX; i++)
{
oreal[i+j*oceanSizeX] *= Number(Math.pow(-1.0,i+j));
}
}
}
private function onmouseDown(e:MouseEvent):void
{
old_mouse.x = mouseX;
old_mouse.y = mouseY;
dragging = true;
}
private function onmouseUp(e:MouseEvent):void
{
dragging = false;
}
private function onmouseMove(e:MouseEvent):void
{
if(dragging)
{
new_mouse.x = mouseX
new_mouse.y = mouseY;
var difference:Point = new_mouse.subtract(old_mouse);
var vector:Vector3D = new Vector3D(difference.x, difference.y, 0);
var rotationAxis:Vector3D = vector.crossProduct(new Vector3D(0,0,1));
rotationAxis.normalize();
var distance:Number = Point.distance(new_mouse, old_mouse);
var rotationMatrix:Matrix3D = new Matrix3D();
rotationMatrix.appendRotation(distance, rotationAxis);
trans.append(rotationMatrix);
old_mouse.x = new_mouse.x;
old_mouse.y = new_mouse.y;
}
}
}
}
import flash.geom.Vector3D;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.geom.ColorTransform;
import flash.display.BitmapData;
import flash.display.BlendMode;
class Face
{
public var i0:int, i1:int, i2:int, z:Number, normal:Vector3D = new Vector3D();
public function Face(a:int = 0, b:int = 0, c:int = 0)
{
i0 = a; i1 = b; i2 = c;
}
}
class Light {
private var _direction:Vector3D = new Vector3D();
private var _halfVector:Vector3D = new Vector3D();
public function get direction() : Vector3D { return _direction; }
public function get halfVector() : Vector3D { return _halfVector; }
function Light(x:Number=1, y:Number=1, z:Number=1) { setPosition(x, y, z); }
public function setPosition(x:Number, y:Number, z:Number) : void {
_direction.x = -x;
_direction.y = -y;
_direction.z = -z;
_direction.normalize();
_halfVector.x = _direction.x;
_halfVector.y = _direction.y;
_halfVector.z = _direction.z + 1;
_halfVector.normalize();
}
}
class Material {
public var colorTable:BitmapData = new BitmapData(256,256,false);
public var alpha:Number = 1;
private var _nega_filter:int = 0;
function Material() { setColor(0xc0c0c0, 1); }
public function setColor(color:uint, alpha_:Number= 1.0,
amb:int=64, dif:int=192, spc:int=0, pow:Number=8, emi:int=0, doubleSided:Boolean=false) : Material
{
var i:int, r:int, c:int,
lightTable:BitmapData = new BitmapData(256, 256, false),
rct:Rectangle = new Rectangle();
// base color
alpha = alpha_;
colorTable.fillRect(colorTable.rect, color);
// ambient/diffusion/emittance
var ea:Number = (256-emi)*0.00390625,
eb:Number = emi*0.5;
r = dif - amb;
rct.width=1; rct.height=256; rct.y=0;
for (i=0; i<256; ++i) {
rct.x = i;
lightTable.fillRect(rct, (((i*r)>>8)+amb)*0x10101);
}
colorTable.draw(lightTable, null, new ColorTransform(ea,ea,ea,1,eb,eb,eb,0), BlendMode.HARDLIGHT);
// specular/power
if (spc > 0) {
rct.width=256; rct.height=1; rct.x=0;
for (i=0; i<256; ++i) {
rct.y = i;
c = int(Math.pow(i*0.0039215686, pow)*spc);
lightTable.fillRect(rct, ((c<255)?c:255)*0x10101);
}
colorTable.draw(lightTable, null, null, BlendMode.ADD);
}
lightTable.dispose();
// double sided
_nega_filter = (doubleSided) ? -1 : 0;
return this;
}
public function getColor(light:Light, normal:Vector3D) : uint
{
var v:Vector3D, ln:int, hn:int, sign:int;
// ambient
v = light.direction;
ln = int((v.x * normal.x + v.y * normal.y + v.z * normal.z)*255);
sign = ((ln & 0x80000000)>>31);
ln = (ln ^ sign) & ((~sign) | _nega_filter);
// specular
v = light.halfVector;
hn = int((v.x * normal.x + v.y * normal.y + v.z * normal.z)*255);
sign = ((hn & 0x80000000)>>31);
hn = (hn ^ sign) & ((~sign) | _nega_filter);
return colorTable.getPixel(ln, hn);
}
static public function calculateTexCoord(texCoord:Point, light:Light, normal:Vector3D, doubleSided:Boolean=false) : void {
var v:Vector3D = light.direction;
texCoord.x = v.x * normal.x + v.y * normal.y + v.z * normal.z;
if (texCoord.x < 0) texCoord.x = (doubleSided) ? -texCoord.x : 0;
v = light.halfVector;
texCoord.y = v.x * normal.x + v.y * normal.y + v.z * normal.z;
if (texCoord.y < 0) texCoord.y = (doubleSided) ? -texCoord.y : 0;
}
}
class Complex
{
public var real:Number = 0;
public var imag:Number = 0;
public function Complex(r:Number = 0, i:Number = 0) { real = r; imag = i; }
}
class FFT{
private var n:int; // データ数
private var bitrev:Vector.<int>; // ビット反転テーブル
private var cstb:Vector.<Number>; // 三角関数テーブル
public static const HPF:String = "high";
public static const LPF:String = "low";
public static const BPF:String = "band"
public function FFT(n:int) {
if(n != 0 && (n & (n-1)) == 0) {
this.n = n;
this.cstb = new Vector.<Number>(n + (n>>2), true);
this.bitrev = new Vector.<int>(n, true);
makeCstb();
makeBitrev();
}
}
// 1D-FFT
public function fft(re:Vector.<Number>, im:Vector.<Number>, inv:Boolean=false):Boolean {
if(!inv) {
return fftCore(re, im, 1);
} else {
if(fftCore(re, im, -1)) {
for(var i:int=0; i<n; i++) {
re[i] /= n;
im[i] /= n;
}
}
}
return true;
}
// 2D-FFT
public function fft2d(re:Vector.<Number>, im:Vector.<Number>, inv:Boolean=false):Boolean {
var tre:Vector.<Number> = new Vector.<Number>(re.length, true);
var tim:Vector.<Number> = new Vector.<Number>(im.length, true);
var x:int, y:int;
if(inv) cvtSpectrum(re, im);
// x軸方向のFFT
for(y=0; y<n; y++) {
for(x=0; x<n; x++) {
tre[x] = re[x + y*n];
tim[x] = im[x + y*n];
}
if(!inv) fft(tre, tim);
else fft(tre, tim, true);
for(x=0; x<n; x++) {
re[x + y*n] = tre[x];
im[x + y*n] = tim[x];
}
}
// y軸方向のFFT
for(x=0; x<n; x++) {
for(y=0; y<n; y++) {
tre[y] = re[x + y*n];
tim[y] = im[x + y*n];
}
if(!inv) fft(tre, tim);
else fft(tre, tim, true);
for(y=0; y<n; y++) {
re[x + y*n] = tre[y];
im[x + y*n] = tim[y];
}
}
if(!inv) cvtSpectrum(re, im);
return true;
}
// 空間周波数フィルタ
public function applyFilter(re:Vector.<Number>, im:Vector.<Number>, rad:uint, type:String, bandWidth:uint = 0):void {
var r:int = 0; // 半径
var n2:int = n>>1;
for(var y:int=-n2; y<n2; y++) {
for(var x:int=-n2; x<n2; x++) {
r = Math.sqrt(x*x + y*y);
if((type == HPF && r<rad) || (type == LPF && r>rad) || (type == BPF && (r<rad || r>(rad + bandWidth)))) {
re[x + n2 + (y + n2)*n] = im[x + n2 + (y + n2)*n] = 0;
}
}
}
}
private function fftCore(re:Vector.<Number>, im:Vector.<Number>, sign:int):Boolean {
var h:int, d:int, wr:Number, wi:Number, ik:int, xr:Number, xi:Number, m:int, tmp:Number;
for(var l:int=0; l<n; l++) { // ビット反転
m = bitrev[l];
if(l<m) {
tmp = re[l];
re[l] = re[m];
re[m] = tmp;
tmp = im[l];
im[l] = im[m];
im[m] = tmp;
}
}
for(var k:int=1; k<n; k<<=1) { // バタフライ演算
h = 0;
d = n/(k<<1);
for(var j:int=0; j<k; j++) {
wr = cstb[h + (n>>2)];
wi = sign*cstb[h];
for(var i:int=j; i<n; i+=(k<<1)) {
ik = i+k;
xr = wr*re[ik] + wi*im[ik]
xi = wr*im[ik] - wi*re[ik];
re[ik] = re[i] - xr;
re[i] += xr;
im[ik] = im[i] - xi;
im[i] += xi;
}
h += d;
}
}
return true;
}
// スペクトル位置並び替え
private function cvtSpectrum(re:Vector.<Number>, im:Vector.<Number>):void {
var tmp:Number = 0.0, xn:int = 0, yn:int = 0;
for(var y:int=0; y<(n>>1); y++) {
for(var x:int=0; x<(n>>1); x++) {
xn = x + (n>>1);
yn = y + (n>>1);
tmp = re[x + y*n];
re[x + y*n] = re[xn + yn*n];
re[xn + yn*n] = tmp;
tmp = re[x + yn*n];
re[x + yn*n] = re[xn + y*n];
re[xn + y*n] = tmp;
tmp = im[x + y*n];
im[x + y*n] = im[xn + yn*n];
im[xn + yn*n] = tmp;
tmp = im[x + yn*n];
im[x + yn*n] = im[xn + y*n];
im[xn + y*n] = tmp;
}
}
}
// 三角関数テーブル作成
private function makeCstb():void {
var n2:int = n>>1, n4:int = n>>2, n8:int = n>>3;
var t:Number = Math.sin(Math.PI/n);
var dc:Number = 2*t*t;
var ds:Number = Math.sqrt(dc*(2 - dc));
var c:Number = cstb[n4] = 1;
var s:Number = cstb[0] = 0;
t = 2*dc;
for(var i:int=1; i<n8; i++) {
c -= dc;
dc += t*c;
s += ds;
ds -= t*s;
cstb[i] = s;
cstb[n4 - i] = c;
}
if(n8 != 0) cstb[n8] = Math.sqrt(0.5);
for(var j:int=0; j<n4; j++) cstb[n2 - j] = cstb[j];
for(var k:int=0; k<(n2 + n4); k++) cstb[k + n2] = -cstb[k];
}
// ビット反転テーブル作成
private function makeBitrev():void {
var i:int = 0, j:int = 0, k:int = 0;
bitrev[0] = 0;
while(++i<n) {
k= n >> 1;
while(k<=j) {
j -= k;
k >>= 1 ;
}
j += k;
bitrev[i] = j;
}
}
}
// Gradient Editor
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.filters.*;
import com.bit101.components.*;
import com.adobe.serialization.json.JSON;
function matrixToGradientBox(m:Matrix):Object {
var w:Number = Math.sqrt(m.a*m.a + m.c*m.c) * 1638.5;
var h:Number = Math.sqrt(m.b*m.b + m.d*m.d) * 1638.5;
return {
w: w,
h: h,
rot: Math.atan2(m.b, m.d),
tx: m.tx-w/2,
ty: m.ty-h/2
};
}
class GradientEditor extends Panel {
public static const LABEL_WIDTH:Number = 30;
public static const PREVIEW_SIZE:Number = 160;
public static const BAR_W:Number = 280;
public static const BAR_H:Number = 20;
protected var _gPoints:Array = [];
protected var _ui:Object = {};
protected var _uiSetters:Object = {};
protected var _mainBox:VBox;
protected var _colorChooser:ColorChooserEx;
protected var _preview:Shape = new Shape;
protected var _previewContainer:Sprite = new Sprite;
protected var _bar:Sprite = new Sprite;
protected var _barContainer:Sprite = new Sprite;
protected var _code:Text;
protected var _errIndicator:GlowFilter = new GlowFilter(0xff4444, 2, 4, 4);
// args should be an array of beginGradientFill args.
public function GradientEditor(parent:DisplayObjectContainer = null, xpos:Number = 0, ypos:Number = 0, args:Array = null, defaultHandler:Function = null) {
super(parent, xpos, ypos);
if(defaultHandler != null) addEventListener(Event.CHANGE, defaultHandler);
setSize(465-20, 55);
args = args || ["linear", [0, 0xffffff], [1, 1], [0, 255]];
for(var i:int = 0; i < args[1].length; i++) {
_gPoints.push(new GradientPoint(_barContainer, args[1][i], args[2][i], args[3][i], _onPointDrag, _removePoint));
}
// args array:
//0 type:String,
//1 colors:Array,
//2 alphas:Array,
//3 ratios:Array,
//4 matrix:Matrix = null,
//5 spreadMethod:String = "pad",
//6 interpolationMethod:String = "rgb",
//7 focalPointRatio:Number = 0
// ui setup
var p:Object = _gPoints[0];
p.isSelected = true;
_mainBox = new VBox(this.content, 5, 5);
_mainBox.spacing = 24;
_ui["Gradient Point"] = 0;
var ccBox:Component = new Component(_mainBox);
_colorChooser = new ColorChooserEx(ccBox, 0, 0, _gPoints[0].color, _onColorChange);
_newTxtSlider("Alpha", p.alpha, 0, 1, "0-9.", _onAlphaChange);
_ui["Gradient Type"] = args[0] || "linear";
_ui["Spread Method"] = args[5] || "pad";
_ui["Interpolation Method"] = args[6] || "rgb";
_onGradientChange();
var board:Bitmap = _checkerboard(BAR_W, BAR_H);
board.y = _bar.y = 20;
_barContainer.addChild(board);
_barContainer.addChild(_bar);
_bar.addEventListener(MouseEvent.CLICK, _onBarClick);
content.addChild(_barContainer);
_barContainer.x = 150;
}
public function get selectedPoint():GradientPoint { return _gPoints[_ui["Gradient Point"]]; };
public function set selectedPoint(p:GradientPoint):void {
_ui["Gradient Point"] = _gPoints.indexOf(p);
_onPointChange();
}
protected function _onBarClick(e:MouseEvent):void {
var bmd:BitmapData = new BitmapData(_bar.width, _bar.height, true);
bmd.draw(_bar);
bmd.draw(_bar, null, null, "alpha");
var c32:Number = bmd.getPixel32(e.localX, e.localY);
var p:GradientPoint = new GradientPoint(_barContainer, c32 & 0xffffff, (c32>>>24)/255, e.localX / BAR_W * 255, _onPointDrag, _removePoint);
_addPoint(p);
}
protected function _addPoint(p:GradientPoint):void {
_gPoints.push(p);
_sortPoints();
selectedPoint = p;
_onGradientChange();
}
protected function _removePoint(p:GradientPoint):Boolean {
if(_gPoints.length < 3) return false; // only if there are more than 2 points
_gPoints.splice(_gPoints.indexOf(p), 1);
if(p.isSelected) selectedPoint = _gPoints[0];
_onGradientChange();
return true;
}
protected function _sortPoints():void {
var p:GradientPoint = selectedPoint;
_gPoints.sortOn(["ratio"], Array.NUMERIC);
selectedPoint = p;
}
protected function _onPointChange(e:Event = null):void {
for each(var p:GradientPoint in _gPoints) p.isSelected = (p == selectedPoint);
_colorChooser.value = selectedPoint.color;
_uiSetters["Alpha"](selectedPoint.alpha);
}
protected function _onColorChange(e:Event):void { selectedPoint.color = _colorChooser.value; _onGradientChange(); }
protected function _onAlphaChange(e:Event):void { selectedPoint.alpha = _ui["Alpha"]; _onGradientChange(); }
protected function _onRatioChange(e:Event):void { selectedPoint.ratio = _ui["Ratio"]; _sortPoints(); _onGradientChange(); }
protected function _onPointDrag(p:GradientPoint):void {
selectedPoint = p;
_sortPoints();
_onGradientChange();
}
protected function _onGradientChange(e:Event = null):void {
var args:Array = this.args;
var mtx:Matrix = new Matrix;
_bar.graphics.clear();
mtx.createGradientBox(BAR_W, BAR_H, 0, 0, 0);
_bar.graphics.beginGradientFill("linear", args[1], args[2], args[3], mtx, args[5], args[6], 0);
_bar.graphics.drawRect(0, 0, BAR_W, BAR_H);
_bar.graphics.endFill();
dispatchEvent(new Event(Event.CHANGE));
}
protected function _newTxtSlider(name:String, value:Number, min:Number, max:Number, restrict:String, handler:Function):Slider {
var container:Component = new Component(_mainBox, 0, 0);
new Label(container, 0, 0, name + ":");
var txt:InputText = new InputText(container, LABEL_WIDTH, 0, String(value), txtHandler);
txt.restrict = restrict;
txt.width = 25;
var slider:Slider = new HSlider(container, txt.x + 30, 3, sliderHandler);
slider.minimum = min;
slider.maximum = max;
slider.width = 60;
slider.value = value;
function txtHandler(e:Event):void {
var v:Number = Number(txt.text);
if(isNaN(v) || txt.text == "") {
txt.filters = [_errIndicator];
} else {
txt.filters = [];
slider.value = v;
_ui[name] = slider.value;
handler(e);
}
};
function sliderHandler(e:Event):void {
txt.text = _ui[name] = slider.value;
txt.filters = [];
handler(e);
};
txt.textField.addEventListener(FocusEvent.FOCUS_OUT, sliderHandler);
_uiSetters[name] = function(v:Number):void { txt.text = String(_ui[name] = slider.value = v); };
txt.text = _ui[name] = slider.value;
return slider;
}
public function get args():Array {
var ret:Array = [];
ret[0] = _ui["Gradient Type"];
ret[1] = []; ret[2] = []; ret[3] = [];
for(var i:int = 0; i < _gPoints.length; i++) {
ret[1].push(_gPoints[i].color);
ret[2].push(_gPoints[i].alpha);
ret[3].push(int(_gPoints[i].ratio));
}
ret[4] = new Matrix;
ret[4].createGradientBox(
_ui["Box Width"],
_ui["Box Height"],
_ui["Box Rotation"] / 180 * Math.PI,
_ui["Box X Translation"],
_ui["Box Y Translation"]
);
ret[5] = _ui["Spread Method"];
ret[6] = _ui["Interpolation Method"];
ret[7] = _ui["Focal Point Ratio"];
return ret;
}
public function get colors():Array {return _gPoints.map(function(p:GradientPoint, ..._):Number {return p.color})}
public function get alphas():Array {return _gPoints.map(function(p:GradientPoint, ..._):Number {return p.alpha})}
public function get ratios():Array {return _gPoints.map(function(p:GradientPoint, ..._):Number {return p.ratio})}
protected function _checkerboard(w:int, h:int):Bitmap {
var bmd:BitmapData = new BitmapData(w, h, false);
for(var y:int = 0; y < h; y++) {
for(var x:int = 0; x < w; x++) {
bmd.setPixel(x, y, (x&8)^(y&8) ? 0xffffff : 0xc0c0c0);
}
}
return(new Bitmap(bmd));
}
}
class GradientPoint {
protected var _ratio:Number;
protected var _color:uint;
protected var _alpha:Number;
protected var _isSelected:Boolean;
protected var _changeHandler:Function;
protected var _killHandler:Function;
protected var _mover:Sprite = new Sprite;
protected var _killer:Sprite = new Sprite;
protected var _parent:DisplayObjectContainer;
public function get color():uint { return _color; }
public function set color(v:uint):void { _color = v; _updateUI(); }
public function get alpha():Number { return _alpha; }
public function set alpha(v:Number):void { _alpha = v; _updateUI(); }
public function get ratio():Number { return _ratio; }
public function set ratio(v:Number):void { _ratio = v; _updateUI(); }
public function get isSelected():Boolean { return _isSelected; }
public function set isSelected(v:Boolean):void { _isSelected = v; _updateUI(); }
public function GradientPoint(parent:DisplayObjectContainer, c:uint, a:Number, r:Number, change:Function, kill:Function):void {
_ratio = r; _color = c; _alpha = a; _changeHandler = change; _killHandler = kill; _parent = parent;
_mover.buttonMode = _killer.buttonMode = true;
_parent.addChild(_mover);
_parent.addChild(_killer);
_mover.y = 10;
_killer.y = GradientEditor.BAR_H + 25;
_mover.addEventListener(MouseEvent.MOUSE_DOWN, _onDragStart);
_killer.addEventListener(MouseEvent.CLICK, _onKill);
_updateUI();
}
protected function _onKill(e:Event):void {
if(_killHandler(this)) { // returns false if point count < 3
_parent.removeChild(_mover);
_parent.removeChild(_killer);
}
}
protected function _onDragStart(e:MouseEvent) : void {
_parent.stage.addEventListener(MouseEvent.MOUSE_MOVE, _onDragging);
_parent.stage.addEventListener(MouseEvent.MOUSE_UP, _onDragEnd);
_onDragging(e);
}
protected function _onDragging(e:MouseEvent) : void {
var x:Number = _parent.mouseX < 0 ? 0 : _parent.mouseX;
if(_parent.mouseX > GradientEditor.BAR_W) x = GradientEditor.BAR_W;
_ratio = x / GradientEditor.BAR_W * 255;
_mover.x = _killer.x = x;
_changeHandler(this);
}
protected function _onDragEnd(e:MouseEvent) : void {
_onDragging(e);
_parent.stage.removeEventListener(MouseEvent.MOUSE_MOVE, _onDragging);
_parent.stage.removeEventListener(MouseEvent.MOUSE_UP, _onDragEnd);
}
protected function _updateUI():void {
if(_isSelected) { // bring to front
_parent.addChild(_mover);
_parent.addChild(_killer);
}
_mover.x = _killer.x = _ratio / 255 * GradientEditor.BAR_W;
with(_mover.graphics) {
clear();
lineStyle(_isSelected ? 2 : 1, 0);
beginFill(_color, _alpha);
drawCircle(0, 0, _isSelected ? 6 : 4);
endFill();
}
with(_killer.graphics) {
clear();
lineStyle(1, 0);
beginFill(_color, _alpha);
drawRect(-4, -4, 9, 9);
endFill();
moveTo(-4,-4); lineTo(5,5);
moveTo(-4,5); lineTo(5,-4);
}
}
}
// ColorChooserEx
import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.geom.*;
import com.bit101.components.*;
import frocessing.color.*;
function hsv2rgb(h:Number, s:Number, v:Number) : uint {
var ht:Number=(h-int(h)+int(h<0))*6, hi:int=int(ht), vt:Number=v*255;
switch(hi) {
case 0: return 0xff000000|(vt<<16)|(int(vt*(1-(1-ht+hi)*s))<<8)|int(vt*(1-s));
case 1: return 0xff000000|(vt<<8)|(int(vt*(1-(ht-hi)*s))<<16)|int(vt*(1-s));
case 2: return 0xff000000|(vt<<8)|int(vt*(1-(1-ht+hi)*s))|(int(vt*(1-s))<<16);
case 3: return 0xff000000|vt|(int(vt*(1-(ht-hi)*s))<<8)|(int(vt*(1-s))<<16);
case 4: return 0xff000000|vt|(int(vt*(1-(1-ht+hi)*s))<<16)|(int(vt*(1-s))<<8);
case 5: return 0xff000000|(vt<<16)|int(vt*(1-(ht-hi)*s))|(int(vt*(1-s))<<8);
}
return 0;
}
function rgb2hsv(r:int, g:int, b:int) : uint { // h:12bit,s:10bit,v:8bit
var max:int, min:int, sv:int;
if (r>g) { if (g>b) {min=b;max=r;} else {min=g;max=(r>b)?r:b;} }
else { if (g<b) {max=b;min=r;} else {max=g;min=(r<b)?r:b;} }
if (max == min) return max;
sv = (int((max - min) * 1023 / max)<<8) | max;
if (b==max) return (int((r-g)*682.6666666666666/(max-min)+2730.6666666666665)<<18)|sv;
if (g==max) return (int((b-r)*682.6666666666666/(max-min)+1365.3333333333332)<<18)|sv;
if (g>=b) return (int((g-b)*682.6666666666666/(max-min))<<18)|sv;
return (int(4096+(g-b)*682.6666666666666/(max-min))<<18)|sv;
}
class ColorChooserEx extends ColorChooser {
//-------------------------------------------------- variables
protected var uniqueDefaultModel:Sprite = null;
protected var originalDefaultModel:Sprite = null;
protected var dummyBackground:Sprite;
protected var mainPanel:Panel, tabLine:Shape = new Shape();
protected var tabs:Array, models:Array = [];
protected var _selectedTab:int;
//-------------------------------------------------- properties
public function get selectedTab() : int { return _selectedTab; }
public function set selectedTab(idx:int) : void {
_selectedTab = idx;
for each (var model:Sprite in models) model.visible = false;
models[_selectedTab].visible = true;
models[_selectedTab].value = value;
tabLine.x = _selectedTab * 40;
}
//-------------------------------------------------- constructor
function ColorChooserEx(parent:DisplayObjectContainer = null, xpos:Number = 0, ypos:Number = 0, value:uint = 0xff0000, defaultHandler:Function = null) {
super(parent, xpos, ypos, value, defaultHandler);
usePopup = true;
}
//-------------------------------------------------- modifications
override protected function onColorsRemovedFromStage(e:Event) : void {
dummyBackground.removeEventListener(MouseEvent.CLICK, onStageClick);
}
override protected function onColorsAddedToStage(e:Event) : void {
_stage = stage;
dummyBackground.graphics.clear();
dummyBackground.graphics.beginFill(0, 0);
dummyBackground.graphics.drawRect(-_stage.stageWidth, -_stage.stageHeight, _stage.stageWidth*2, _stage.stageHeight*2);
dummyBackground.graphics.endFill();
dummyBackground.addEventListener(MouseEvent.CLICK, onStageClick);
models[_selectedTab].value = value;
}
override protected function drawColors(d:DisplayObject) : void {
while (_colorsContainer.numChildren) _colorsContainer.removeChildAt(0);
_colorsContainer.addChild(d); // currently always (d === _model)
placeColors();
}
override public function set usePopup(value:Boolean):void {
_usePopup = value;
_swatch.buttonMode = true;
_swatch.addEventListener(MouseEvent.CLICK, onSwatchClick);
if (!_usePopup) {
_swatch.buttonMode = false;
_swatch.removeEventListener(MouseEvent.CLICK, onSwatchClick);
}
}
//-------------------------------------------------- for interactive selectors
public function browseColorChoiceEx(col:uint) : void { value = _tmpColorChoice = col; dispatchEvent(new Event(Event.CHANGE)); }
public function backToColorChoiceEx() : void { value = _oldColorChoice; }
public function setColorChoiceEx() : void {
_oldColorChoice = value;
dispatchEvent(new Event(Event.CHANGE));
displayColors();
}
//-------------------------------------------------- exchange default model
override protected function getDefaultModel() : Sprite {
var x_:Number = 0;
if (uniqueDefaultModel) return uniqueDefaultModel;
originalDefaultModel = super.getDefaultModel();
uniqueDefaultModel = new Sprite();
dummyBackground = new Sprite();
uniqueDefaultModel.addChild(dummyBackground);
mainPanel = new Panel(uniqueDefaultModel);
mainPanel.setSize(160, 134);
tabs = [newTab("Gimp"), newTab("Bars"), newTab("Hue"), newTab("Mem")];
models = [new GimpModel(mainPanel.content, this),
new BarsModel(mainPanel.content, this),
new HueModel(mainPanel.content, this),
new MemoryModel(mainPanel.content, this)];
mainPanel.content.addChild(tabLine = new Shape());
tabLine.graphics.lineStyle(1, Style.PANEL);
tabLine.graphics.moveTo(0,0);
tabLine.graphics.lineTo(40,0);
tabLine.y = 116;
selectedTab = 0;
return uniqueDefaultModel;
function newTab(label:String) : PushButton {
var newButton:PushButton = new PushButton(mainPanel.content, x_, 116, label, _onTabClick);
newButton.setSize(40, 18);
x_ += 40;
return newButton;
}
}
protected function _onTabClick(e:Event) : void { selectedTab = int((e.target.x + 20) / 40); }
}
class ColorChooserExModel extends Sprite {
protected static const $$:Number = 0.00392156862745098;
protected var _h:Number, _s:Number, _v:Number, _r:uint, _g:uint, _b:uint, _a:uint;
protected var _chooser:ColorChooserEx;
public function get value() : uint { return (_a<<24)|(_r<<16)|(_g<<8)|_b; }
public function set value(v:uint) : void {
_a = (v >> 24) & 0xff;
_r = (v >> 16) & 0xff;
_g = (v >> 8) & 0xff;
_b = v & 0xff;
_RGBupdated();
_setup();
}
function ColorChooserExModel(parent:DisplayObjectContainer, chooser:ColorChooserEx) {
super();
parent.addChild(this);
visible = false;
_chooser = chooser;
}
protected function _setup() : void {}
protected function _HSVupdated() : void {
var v:uint = hsv2rgb(_h, _s, _v);
_r = (v >> 16) & 0xff;
_g = (v >> 8) & 0xff;
_b = v & 0xff;
}
protected function _RGBupdated() : void {
var hsv:uint = rgb2hsv(_r, _g, _b);
_h = (hsv >> 18) * 0.000244140625;
_s = ((hsv >> 8) & 0x3ff) * 0.0009775171065493646;
_v = (hsv & 0xff) * 0.00392156862745098;
}
}
class ControlPad extends Panel {
public var backBitmap:Bitmap, pixels:BitmapData;
protected var _pointer:Shape, _pointerRange:Rectangle;
public function get valueX() : Number { return _pointer.x / _pointerRange.width; }
public function set valueX(p:Number) : void { _pointer.x = _pointerRange.width * p; }
public function get valueY() : Number { return 1 - _pointer.y / _pointerRange.height; }
public function set valueY(p:Number) : void { _pointer.y = _pointerRange.height * (1-p); }
public function valueXY(px:Number, py:Number) : void {
_pointer.x = _pointerRange.width * px;
_pointer.y = _pointerRange.height * (1-py);
}
function ControlPad(parent:DisplayObjectContainer, xpos:Number, ypos:Number, width:Number, height:Number, defaultHandler:Function=null) {
super(parent, xpos, ypos);
setSize(width, height);
backBitmap = new Bitmap(pixels = new BitmapData(width, height, false, 0x808080));
_pointer = _addPointer();
_pointerRange = pixels.rect;
_background.addChild(backBitmap);
content.addChild(_pointer);
addEventListener(MouseEvent.MOUSE_DOWN, _onDragStart);
if (defaultHandler != null) addEventListener(Event.CHANGE, defaultHandler);
buttonMode = true;
}
override public function draw() : void {
dispatchEvent(new Event(Component.DRAW));
_mask.graphics.clear();
_mask.graphics.beginFill(0xff0000);
_mask.graphics.drawRect(0, 0, _width, _height);
_mask.graphics.endFill();
}
protected function _addPointer() : Shape {
var pt:Shape = new Shape();
pt.graphics.lineStyle(2, 0, 0.5);
pt.graphics.beginFill(0xffffff, 1);
pt.graphics.drawCircle(0, 0, 3);
pt.graphics.endFill();
content.addChild(pt);
return pt;
}
protected function _onDragStart(e:MouseEvent) : void {
stage.addEventListener(MouseEvent.MOUSE_MOVE, _onDragging);
stage.addEventListener(MouseEvent.MOUSE_UP, _onDragEnd);
_onDragging(e);
}
protected function _onDragging(e:MouseEvent) : void {
_pointer.x = mouseX;
_pointer.y = mouseY;
if (_pointer.x < _pointerRange.left) _pointer.x = _pointerRange.left;
else if (_pointer.x > _pointerRange.right) _pointer.x = _pointerRange.right;
if (_pointer.y < _pointerRange.top) _pointer.y = _pointerRange.top;
else if (_pointer.y > _pointerRange.bottom) _pointer.y = _pointerRange.bottom;
dispatchEvent(new Event(Event.CHANGE));
}
protected function _onDragEnd(e:MouseEvent) : void {
_onDragging(e);
stage.removeEventListener(MouseEvent.MOUSE_MOVE, _onDragging);
stage.removeEventListener(MouseEvent.MOUSE_UP, _onDragEnd);
}
}
class HueCircle extends ControlPad {
protected var circleWidth:Number, circleRadius:Number, triangleSize:Number;
protected var dragFunc:Function, _hpointer:Shape, _shadowx2:DropShadowFilter;
protected var hCircle:BitmapData, svTriangle:BitmapData;
protected var _h:Number=0, _s:Number=0, _v:Number=0;
protected var svTriangleDrawMatrix:Matrix = new Matrix(0.5, 0, 0, 0.5);
protected var baseMatrix:Matrix = new Matrix(0.8660254037844386, 0, 0.4330127018922193, 0.75, -0.4330127018922193, -0.25);
protected var matrix:Matrix, invert:Matrix;
public function get sat() : Number { return _s; }
public function get val() : Number { return _v; }
public function get hue() : Number { return _h; }
public function setHSV(h:Number, s:Number, v:Number) : void {
_h = h; _s = s; _v = v;
_drawSVTriangle();
invalidate();
}
function HueCircle(parent:DisplayObjectContainer, xpos:Number, ypos:Number, radius:Number, cwidth:Number, defaultHandler:Function=null) {
super(parent, xpos, ypos, radius*2, radius*2, defaultHandler);
filters = null;
circleWidth = cwidth;
circleRadius = radius;
triangleSize = (radius - cwidth) * 2;
hCircle = new BitmapData(radius*2, radius*2, true, 0);
svTriangle = new BitmapData(triangleSize*2, triangleSize*2, true, 0);
svTriangleDrawMatrix.translate(cwidth, cwidth);
baseMatrix.scale(triangleSize, triangleSize);
_shadowx2 = getShadow(4, true);
_drawHCircle();
_drawSVTriangle();
_hpointer = _addPointer();
}
override public function draw() : void {
super.draw();
_updateHPointerPosition();
_updateSVPointerPosition();
pixels.copyPixels(hCircle, hCircle.rect, hCircle.rect.topLeft);
pixels.draw(svTriangle, svTriangleDrawMatrix, null, null, null, true);
}
protected function _drawHCircle() : void {
var px:int, py:int, rgb:uint, d:Number, pmax:int = circleRadius * 2,
r2:Number = pmax * pmax, w2:Number = triangleSize * triangleSize,
temp:BitmapData = new BitmapData(hCircle.width*2, hCircle.height*2, true, 0);
for (py=-pmax; py<pmax; py++) for (px=-pmax; px<pmax; px++) {
d = px * px + py * py;
if (w2<=d && d<=r2) {
rgb = hsv2rgb(Math.atan2(px, -py)*0.15915494309189534, 1, 1);
temp.setPixel32(px+pmax, py+pmax, 0xff000000|rgb);
}
}
temp.applyFilter(temp, temp.rect, temp.rect.topLeft, _shadowx2);
hCircle.fillRect(hCircle.rect, 0xff000000|Style.PANEL);
hCircle.draw(temp, new Matrix(0.5,0,0,0.5), null, null, null, true);
temp.dispose();
}
protected function _drawSVTriangle() : void {
matrix = baseMatrix.clone();
matrix.rotate((_h+0.5)*6.283185307179586);
invert = matrix.clone();
invert.invert();
svTriangle.fillRect(svTriangle.rect, 0);
var px:int, py:int, rgb:uint, sx:Number, sy:Number, ss:Number, vv:Number, pmax:int = triangleSize,
a:Number = invert.a * 0.5, b:Number = invert.b * 0.5,
c:Number = invert.c * 0.5, d:Number = invert.d * 0.5,
tx:Number= invert.tx, ty:Number= invert.ty;
for (py=-pmax; py<pmax; py++) for (px=-pmax; px<pmax; px++) {
sx = px * a + py * c + tx;
sy = px * b + py * d + ty;
if (sx+sy<=1 && sx>=0 && sy>=0) {
vv = sx + sy;
ss = (vv==0) ? 1 : (((sy - sx) / vv + 1) * 0.5);
svTriangle.setPixel32(px+pmax, py+pmax, hsv2rgb(_h, ss, vv));
}
}
svTriangle.applyFilter(svTriangle, svTriangle.rect, svTriangle.rect.topLeft, _shadowx2);
}
override protected function _onDragStart(e:MouseEvent) : void {
var dx:Number = mouseX - circleRadius, dy:Number = mouseY - circleRadius,
l2:Number = dx*dx + dy*dy, icr:Number = circleRadius - circleWidth;
dragFunc = (l2 < icr * icr) ? _updateSVValue : _updateHValue;
_onDragging(e);
super._onDragStart(e);
}
protected function _updateHValue(dx:Number, dy:Number) : void {
var len:Number = Math.sqrt(dx*dx + dy*dy), il:Number;
if (len != 0) {
il = (circleRadius - circleWidth * 0.5) / len;
_h = Math.atan2(dx, -dy)*0.15915494309189534;
if (_h<0) _h += 1;
_drawSVTriangle();
invalidate();
}
}
protected function _updateHPointerPosition() : void {
var radh:Number = (_h + 0.5) * 6.283185307179586;
_hpointer.x = -Math.sin(radh) * (circleRadius - circleWidth * 0.5) + circleRadius;
_hpointer.y = Math.cos(radh) * (circleRadius - circleWidth * 0.5) + circleRadius;
}
protected function _updateSVValue(dx:Number, dy:Number) : void {
var sx:Number = dx * invert.a + dy * invert.c + invert.tx,
sy:Number = dx * invert.b + dy * invert.d + invert.ty;
sx = (sx<0) ? 0 : sx;
sy = (sy<0) ? 0 : sy;
if (sx+sy > 1) {
var iss:Number = 1/(sx + sy);
sx *= iss;
sy *= iss;
}
_v = sx + sy;
_s = (_v==0) ? 1 : (((sy - sx) / _v + 1) * 0.5);
_updateSVPointerPosition();
}
protected function _updateSVPointerPosition() : void {
var sy:Number = _v * _s, sx:Number = _v - sy;
_pointer.x = sx * matrix.a + sy * matrix.c + matrix.tx + circleRadius;
_pointer.y = sx * matrix.b + sy * matrix.d + matrix.ty + circleRadius;
}
override protected function _onDragging(e:MouseEvent) : void {
dragFunc(mouseX - circleRadius, mouseY - circleRadius);
dispatchEvent(new Event(Event.CHANGE));
}
}
class HColorBar extends ControlPad {
function HColorBar(parent:DisplayObjectContainer, xpos:Number, ypos:Number, width:Number, height:Number, defaultHandler:Function=null) {
super(parent, xpos, ypos, width, height, defaultHandler);
_pointerRange = new Rectangle(0, height*0.5, width, 0);
_pointer.y = _pointerRange.y;
}
}
class VColorBar extends ControlPad {
function VColorBar(parent:DisplayObjectContainer, xpos:Number, ypos:Number, width:Number, height:Number, defaultHandler:Function=null) {
super(parent, xpos, ypos, width, height, defaultHandler);
_pointerRange = new Rectangle(width*0.5, 0, 0, height);
_pointer.x = _pointerRange.x;
}
}
class GimpModel extends ColorChooserExModel {
private var ctrl:ControlPad, bar:VColorBar, tabs:Array, cursor:Shape, _selectedTab:int;
public function get selectedTab() : int { return _selectedTab; }
public function set selectedTab(idx:int) : void {
_selectedTab = idx;
cursor.y = _selectedTab * 18 + 4;
_setup();
}
function GimpModel(parent:DisplayObjectContainer, chooser:ColorChooserEx) {
var y_:Number = 4, me:Sprite = this;
super(parent, chooser);
ctrl = new ControlPad(me, 8, 8, 100, 100, _onCtrlChange);
bar = new VColorBar(me, 112, 8, 12, 100, _onBarChange);
tabs = [newTab("H"), newTab("S"), newTab("V"), newTab("R"), newTab("G"), newTab("B")];
addChild(cursor = new Shape());
cursor.graphics.beginFill(0x8080ff, 0.25);
cursor.graphics.drawRect(0,0,26,18);
cursor.graphics.endFill();
cursor.x = 130;
selectedTab = 0;
function newTab(label:String) : PushButton {
var newButton:PushButton = new PushButton(me, 130, y_, label, _onTabClick);
newButton.setSize(26, 18);
y_ += 18;
return newButton;
}
}
override protected function _setup() : void {
_updateColors();
_updatePointer();
}
protected function _onTabClick(e:Event) : void {
selectedTab = int((e.target.y + 10) / 20);
}
protected function _onCtrlChange(e:Event) : void {
switch (_selectedTab) {
case 0: _s=ctrl.valueX; _v=ctrl.valueY; _HSVupdated(); break;
case 1: _v=ctrl.valueX; _h=ctrl.valueY; _HSVupdated(); break;
case 2: _h=ctrl.valueX; _s=ctrl.valueY; _HSVupdated(); break;
case 3: _g=ctrl.valueY*255; _b=ctrl.valueX*255; _RGBupdated(); break;
case 4: _b=ctrl.valueY*255; _r=ctrl.valueX*255; _RGBupdated(); break;
default: _r=ctrl.valueY*255; _g=ctrl.valueX*255; _RGBupdated(); break;
}
_updateColors(true, false);
_chooser.browseColorChoiceEx(value);
}
protected function _onBarChange(e:Event) : void {
switch (_selectedTab) {
case 0: _h=bar.valueY; _HSVupdated(); break;
case 1: _s=bar.valueY; _HSVupdated(); break;
case 2: _v=bar.valueY; _HSVupdated(); break;
case 3: _r=bar.valueY*255; _RGBupdated(); break;
case 4: _g=bar.valueY*255; _RGBupdated(); break;
default: _b=bar.valueY*255; _RGBupdated(); break;
}
_updateColors(false, true);
_chooser.browseColorChoiceEx(value);
}
protected function _updateColors(b:Boolean=true, c:Boolean=true) : void {
var rc:Rectangle = new Rectangle(0,0,12,1), i:int;
if (_selectedTab<3) {
switch (_selectedTab) {
case 0: _drawHSV(b,c); break;
case 1: _drawSVH(b,c); break;
case 2: _drawVHS(b,c); break;
}
} else _drawRGB(5-_selectedTab,b,c);
for (rc.y=99, i=0; i<100; rc.y--, i++) bar.pixels.fillRect(rc, _bar[i]);
ctrl.pixels.fillRect(ctrl.pixels.rect, 0);
ctrl.pixels.setVector(ctrl.pixels.rect, _mtx);
}
protected function _updatePointer() : void {
switch (_selectedTab) {
case 0: bar.valueY=_h; ctrl.valueX=_s; ctrl.valueY=_v; break;
case 1: bar.valueY=_s; ctrl.valueX=_v; ctrl.valueY=_h; break;
case 2: bar.valueY=_v; ctrl.valueX=_h; ctrl.valueY=_s; break;
case 3: bar.valueY=_r*$$; ctrl.valueY=_g*$$; ctrl.valueX=_b*$$; break;
case 4: bar.valueY=_g*$$; ctrl.valueY=_b*$$; ctrl.valueX=_r*$$; break;
default: bar.valueY=_b*$$; ctrl.valueY=_r*$$; ctrl.valueX=_g*$$; break;
}
}
private var _bar:Vector.<uint> = new Vector.<uint>(100);
private var _mtx:Vector.<uint> = new Vector.<uint>(10000);
private function _drawHSV(b:Boolean, c:Boolean) : void {
var h:Number=_h, s:Number=_s, v:Number=_v, i:int;
if (b) for (i=0; i<100; i++) _bar[i] = hsv2rgb(i*0.01, 1, 1);
if (c) for (i=0, v=99; v>=0; v--) for (s=0; s<100; s++, i++) _mtx[i] = hsv2rgb(h, s*0.01, v*0.01);
}
private function _drawSVH(b:Boolean, c:Boolean) : void {
var h:Number=_h, s:Number=_s, v:Number=_v, i:int;
if (b) for (i=0; i<100; i++) _bar[i] = hsv2rgb(h, i*0.01, i*0.005+0.5);
if (c) for (i=0, h=99; h>=0; h--) for (v=0; v<100; v++, i++) _mtx[i] = hsv2rgb(h*0.01, s, v*0.01);
}
private function _drawVHS(b:Boolean, c:Boolean) : void {
var h:Number=_h, s:Number=_s, v:Number=_v, i:int;
if (b) for (i=0; i<100; i++) _bar[i] = hsv2rgb(h, 1, i*0.01);
if (c) for (i=0, s=99; s>=0; s--) for (h=0; h<100; h++, i++) _mtx[i] = hsv2rgb(h*0.01, s*0.01, v);
}
private function _drawRGB(rgbIndex:int, b:Boolean, c:Boolean) : void {
var shift:int = rgbIndex*8, shiftx:int = [8,16,0][rgbIndex], shifty:int = [16,0,8][rgbIndex],
rgb:uint = value, col:int = 0xff000000|rgb&~(0xff<<shift), i:int, x:int, y:int;
if (b) for (i=0; i<100; i++) _bar[i] = 0xff000000 | (int(i*2.55)<<shift);
if (c) {
col = 0xff000000|rgb&~((0xff<<shiftx)|(0xff<<shifty));
for (i=0, y=99; y>=0; y--) for (x=0; x<100; x++, i++) _mtx[i] = col | (int(x*2.55)<<shiftx)|(int(y*2.55)<<shifty);
}
}
}
class ColorChooser6Numbers extends ColorChooserExModel {
protected var numbers:Array = [], _labelx:Number, _numbery:Number = 5;
function ColorChooser6Numbers(parent:DisplayObjectContainer, chooser:ColorChooserEx) { super(parent, chooser); }
protected function _createNumbers(labelx:Number) : void {
_labelx = labelx;
_newNumber("H", _onHSVChange, _onHSVTextChange);
_newNumber("S", _onHSVChange, _onHSVTextChange);
_newNumber("V", _onHSVChange, _onHSVTextChange);
_newNumber("R", _onRGBChange, _onRGBTextChange);
_newNumber("G", _onRGBChange, _onRGBTextChange);
_newNumber("B", _onRGBChange, _onRGBTextChange);
}
protected function _newNumber(label:String, onChange:Function, onEdit:Function) : void {
var input:InputText = new InputText(this, 128, _numbery, "0", onEdit);
input.setSize(28, 18);
input.restrict = "0-9";
numbers.push(input);
new Label(this, _labelx, _numbery, label);
_numbery += 18;
}
protected function _onHSVChange(e:Event) : void {}
protected function _onHSVTextChange(e:Event) : void {
_h = Number(numbers[0].text) * 0.002777777777777778;
_s = Number(numbers[1].text) * 0.01;
_v = Number(numbers[2].text) * 0.01;
if (_h<0) _h=0 else if (_h>1) _h=1;
if (_s<0) _s=0 else if (_s>1) _s=1;
if (_v<0) _v=0 else if (_v>1) _v=1;
_updateColors();
_updatePointer();
_chooser.browseColorChoiceEx(value);
}
protected function _onRGBChange(e:Event) : void {}
protected function _onRGBTextChange(e:Event) : void {
_r = int(numbers[3].text);
_g = int(numbers[4].text);
_b = int(numbers[5].text);
if (_r<0) _r=0 else if (_r>255) _r=255;
if (_g<0) _g=0 else if (_g>255) _g=255;
if (_b<0) _b=0 else if (_b>255) _b=255;
_updateColors();
_updatePointer();
_chooser.browseColorChoiceEx(value);
}
protected function _updateColors() : void {}
protected function _updatePointer() : void {}
protected function _updateNumbers() : void {
numbers[0].text = String(int(_h*360));
numbers[1].text = String(int(_s*100));
numbers[2].text = String(int(_v*100));
numbers[3].text = String(_r);
numbers[4].text = String(_g);
numbers[5].text = String(_b);
}
}
class BarsModel extends ColorChooser6Numbers {
protected var bars:Array = [];
function BarsModel(parent:DisplayObjectContainer, chooser:ColorChooserEx) {
super(parent, chooser);
_createNumbers(4);
}
override protected function _newNumber(label:String, onChange:Function, onEdit:Function) : void {
bars.push(new HColorBar(this, 20, _numbery+4, 100, 10, onChange));
return super._newNumber(label, onChange, onEdit);
}
override protected function _setup() : void {
_updateColors();
_updatePointer();
_updateNumbers();
}
override protected function _onHSVChange(e:Event) : void {
_h = bars[0].valueX;
_s = bars[1].valueX;
_v = bars[2].valueX;
_HSVupdated();
bars[3].valueX = _r * $$;
bars[4].valueX = _g * $$;
bars[5].valueX = _b * $$;
_updateColors();
_updateNumbers();
_chooser.browseColorChoiceEx(value);
}
override protected function _onRGBChange(e:Event) : void {
_r = bars[3].valueX * 255;
_g = bars[4].valueX * 255;
_b = bars[5].valueX * 255;
_RGBupdated();
bars[0].valueX = _h;
bars[1].valueX = _s;
bars[2].valueX = _v;
_updateColors();
_updateNumbers();
_chooser.browseColorChoiceEx(value);
}
override protected function _updateColors() : void {
var h:Number=_h, s:Number=_s, v:Number=_v, rgb:uint = value, i:int, rc:Rectangle = new Rectangle(0,0,1,10);
for (rc.x=0, i=0; i<100; rc.x++, i++) {
bars[0].pixels.fillRect(rc, hsv2rgb(i*0.01, s, v));
bars[1].pixels.fillRect(rc, hsv2rgb(h, i*0.01, v));
bars[2].pixels.fillRect(rc, hsv2rgb(h, s, i*0.01));
bars[3].pixels.fillRect(rc, (rgb&0x00ffff)|((i*2.55)<<16));
bars[4].pixels.fillRect(rc, (rgb&0xff00ff)|((i*2.55)<<8));
bars[5].pixels.fillRect(rc, (rgb&0xffff00)|((i*2.55)<<0));
}
}
override protected function _updatePointer() : void {
bars[0].valueX = _h;
bars[1].valueX = _s;
bars[2].valueX = _v;
bars[3].valueX = _r * $$;
bars[4].valueX = _g * $$;
bars[5].valueX = _b * $$;
}
}
class HueModel extends ColorChooser6Numbers {
protected var circle:HueCircle;
function HueModel(parent:DisplayObjectContainer, chooser:ColorChooserEx) {
super(parent, chooser);
_createNumbers(114);
circle = new HueCircle(this, 8, 8, 50, 12, _onHueCircleChanged);
}
protected function _onHueCircleChanged(e:Event) : void {
_h = circle.hue;
_s = circle.sat;
_v = circle.val;
_HSVupdated();
_updateNumbers();
_chooser.browseColorChoiceEx(value);
}
override protected function _setup() : void { circle.setHSV(_h, _s, _v); _updateNumbers(); }
override protected function _updateColors() : void { circle.setHSV(_h, _s, _v); }
}
class MemoryModel extends ColorChooserExModel {
protected var colors:Vector.<uint> = new Vector.<uint>(16);
protected var pallet:Sprite = new Sprite();
function MemoryModel(parent:DisplayObjectContainer, chooser:ColorChooserEx) {
super(parent, chooser);
addChild(pallet);
pallet.filters = [new DropShadowFilter(2, 45, Style.DROPSHADOW, 1, 2, 2, .3, 1, true)];
pallet.buttonMode = true;
pallet.addEventListener(MouseEvent.CLICK, _onColorSelected);
}
override protected function _setup() : void {
memory(value);
_updateColors();
}
protected function _updateColors() : void {
var i:int, g:Graphics = pallet.graphics;
g.clear();
for (i=0; i<16; i++) {
g.beginFill(colors[i]);
g.drawRect((i&7)*19+5, (i>>3)*19+5, 16, 16);
g.endFill();
}
}
protected function _onColorSelected(e:Event) : void {
var idx:int = (int((mouseX - 3) / 19) & 7) + (int((mouseY - 3) / 19) << 3);
if (idx>=0 && idx<16) {
memory(value);
_chooser.browseColorChoiceEx(colors[idx]);
}
}
public function memory(color:uint) : void {
var i:int, j:int=15;
for (i=0; i<16; i++) if (colors[i] == color) { j = i; break; }
for (; j>0; j--) colors[j] = colors[j-1];
colors[0] = color;
_updateColors();
}
}