forked from: forked from: Barnsley Fern
forked from forked from: Barnsley Fern (diff: 78)
color done. next is fractal flames
ActionScript3 source code
/**
* Copyright greentec ( http://wonderfl.net/user/greentec )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/g6RC
*/
// forked from greentec's forked from: Barnsley Fern
// forked from greentec's Barnsley Fern
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Shape;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.Matrix;
public class FlashTest extends Sprite {
public var _bitmap:Bitmap;
public var _bitmapData:BitmapData;
public var centerX:Number = 465 / 2;
public var centerY:Number = 465;
public var table:Array = [
[0, 0, 0, 0.16, 0, 0, 0.01],
[0.85, 0.04, -0.04, 0.85, 0, 1.6, 0.85],
[0.2, -0.26, 0.23, 0.22, 0, 1.6, 0.07],
[-0.15, 0.28, 0.26, 0.24, 0, 0.44, 0.07]
];
public var cpx:Number;
public var cpy:Number;
public var npx:Number;
public var npy:Number;
public var _shape:Shape;
public var _shapeRadius:int = 1;
public var mat:Matrix;
public var iter:int = 300000;
public var points:Vector.<Vector.<int>> = new Vector.<Vector.<int>>(465);
public var colors:Vector.<Vector.<Number>> = new Vector.<Vector.<Number>>(465);
public var colorMap:Array = [[0, 0.2298057, 0.298717966, 0.753683153], [0.03125, 0.26623388, 0.353094838, 0.801466763], [0.0625, 0.30386891, 0.406535296, 0.84495867], [0.09375, 0.342804478, 0.458757618, 0.883725899], [0.125, 0.38301334, 0.50941904, 0.917387822], [0.15625, 0.424369608, 0.558148092, 0.945619588], [0.1875, 0.46666708, 0.604562568, 0.968154911], [0.21875, 0.509635204, 0.648280772, 0.98478814], [0.25, 0.552953156, 0.688929332, 0.995375608], [0.28125, 0.596262162, 0.726149107, 0.999836203], [0.3125, 0.639176211, 0.759599947, 0.998151185], [0.34375, 0.681291281, 0.788964712, 0.990363227], [0.375, 0.722193294, 0.813952739, 0.976574709], [0.40625, 0.761464949, 0.834302879, 0.956945269], [0.4375, 0.798691636, 0.849786142, 0.931688648], [0.46875, 0.833466556, 0.860207984, 0.901068838], [0.5, 0.865395197, 0.86541021, 0.865395561], [0.53125, 0.897787179, 0.848937047, 0.820880546], [0.5625, 0.924127593, 0.827384882, 0.774508472], [0.59375, 0.944468518, 0.800927443, 0.726736146], [0.625, 0.958852946, 0.769767752, 0.678007945], [0.65625, 0.96732803, 0.734132809, 0.628751763], [0.6875, 0.969954137, 0.694266682, 0.579375448], [0.71875, 0.966811177, 0.650421156, 0.530263762], [0.75, 0.958003065, 0.602842431, 0.481775914], [0.78125, 0.943660866, 0.551750968, 0.434243684], [0.8125, 0.923944917, 0.49730856, 0.387970225], [0.84375, 0.89904617, 0.439559467, 0.343229596], [0.875, 0.869186849, 0.378313092, 0.300267182], [0.90625, 0.834620542, 0.312874446, 0.259301199], [0.9375, 0.795631745, 0.24128379, 0.220525627], [0.96875, 0.752534934, 0.157246067, 0.184115123], [1, 0.705673158, 0.01555616, 0.150232812]];
public function FlashTest() {
_bitmapData = new BitmapData(465, 465, true, 0xff292929);
_bitmap = new Bitmap(_bitmapData);
addChild(_bitmap);
_shape = new Shape();
_shape.graphics.beginFill(0xffffff);
_shape.graphics.drawCircle(0, 0, _shapeRadius);
_shape.graphics.endFill();
cpx = centerX;
cpy = centerY;
var i:int;
//initialize points Vector
for (i = 0; i < 465; i += 1)
{
points[i] = new Vector.<int>(465);
colors[i] = new Vector.<Number>(465);
}
var t:int;
var px:int, py:int;
var r:Number;
var color:Number = Math.random();
for (i = 0; i < 50; i += 1) //first 50 points are discarded
{
t = getRandomTransform();
npx = cpx * table[t][0] + cpy * table[t][1] + table[t][4];
npy = cpx * table[t][2] + cpy * table[t][3] + table[t][5];
//r = 1 / Math.sqrt(npx * npx + npy * npy);
cpx = npx;
cpy = npy;
//cpx = npx * r;
//cpy = npy * r;
//cpx = Math.sin(npx);
//cpy = Math.sin(npy);
}
for (i = 0; i < iter; i += 1)
{
t = getRandomTransform();
npx = cpx * table[t][0] + cpy * table[t][1] + table[t][4];
npy = cpx * table[t][2] + cpy * table[t][3] + table[t][5];
color = (color * table[t][0] + color * table[t][1] + table[t][4] + color * table[t][2] + color * table[t][3] + table[t][5]) / 2;
//r = 1 / Math.sqrt(npx * npx + npy * npy);
cpx = npx;
cpy = npy;
//cpx = npx * r;
//cpy = npy * r;
//cpx = Math.sin(npx);
//cpy = Math.sin(npy);
px = (cpx + 5) * 45;
py = 465 - cpy * 45;
if(px >= 0 && px < 465 && py >= 0 && py < 465)
points[px][py] += 1;
colors[px][py] = (colors[px][py] + color) / 2;
}
drawPointVector();
}
private function drawPointVector():void
{
var i:int;
var j:int;
var max:int = -1;
var min:int = int.MAX_VALUE;
var color:uint;
//var oneColor:uint;
var scalar:Number;
var s:int;
var r:uint;
var g:uint;
var b:uint;
var len:int;
for (i = 0; i < 465; i += 1)
{
for (j = 0; j < 465; j += 1)
{
//points[i][j] = (points[i][j] != 0 ? Math.log(points[i][j]) : 0);
points[i][j] = (points[i][j] != 0 ? Math.log(points[i][j]) : 0);
//if (max < points[i][j])
//{
//max = points[i][j];
//}
if (max < colors[i][j])
{
max = colors[i][j];
}
if (min > colors[i][j])
{
min = colors[i][j];
}
}
}
_bitmapData.lock();
len = colorMap.length;
for (i = 0; i < 465; i += 1)
{
for (j = 0; j < 465; j += 1)
{
if (points[i][j] != 0)
{
//oneColor = 255 * points[i][j] / max;
//color = oneColor << 16 | oneColor << 8 | oneColor;
//scalar = points[i][j] / max * 1.0;
scalar = colors[i][j] / Math.abs(max-min) * 1.0;
for (s = 0; s < len; s += 1)
{
if (colorMap[s][0] > scalar)
{
break;
}
}
s -= 1;
r = colorMap[s][1] * 255;
g = colorMap[s][2] * 255;
b = colorMap[s][3] * 255;
//r = (points[i][j] / max * Math.abs(colorMap[0][0] - colorMap[1][0]) + colorMap[0][0]) * 255;
//g = (points[i][j] / max * Math.abs(colorMap[0][1] - colorMap[1][1]) + colorMap[0][1]) * 255;
//b = (points[i][j] / max * Math.abs(colorMap[0][2] - colorMap[1][2]) + colorMap[0][2]) * 255;
color = r << 16 | g << 8 | b;
_bitmapData.setPixel(i, j, color);
}
}
}
_bitmapData.unlock();
}
private function getRandomTransform():int
{
var randomNumber:Number = Math.random();
var i:int;
var row:Array;
for (i = 0; i < table.length; i += 1)
{
if (randomNumber <= table[i][6])
{
return i;
}
randomNumber -= table[i][6];
}
return -1;
}
}
}