diff --git a/DragonFractal.js b/DragonFractal.js
new file mode 100644
index 0000000..ee5698b
--- /dev/null
+++ b/DragonFractal.js
@@ -0,0 +1,85 @@
+class Pixels {
+
+ constructor() {
+ this.pixelsCollection = [];
+ }
+
+ setPixels(x, y) {
+ this.pixelsCollection.push({ x: x, y: y });
+ }
+
+ drawDragonFractal(image, size) {
+ if (this.pixelsCollection.length === 0) return;
+ const maxX = this.max((p) => p.x);
+ const maxY = this.max((p) => p.y);
+ const minX = this.min((p) => p.x);
+ const minY = this.min((p) => p.y);
+ const width = maxX - minX;
+ const height = maxY - minY;
+ const scaleX = (image.width - 20) / width;
+ const scaleY = (image.height - 20) / height;
+ const scale = Math.min(scaleX, scaleY);
+ for (let pixel of this.pixelsCollection) {
+ let x = (pixel.x - minX - width / 2) * scale + image.width / 2.0;
+ let y = (pixel.y - minY - height / 2) * scale + image.height / 2.0;
+ x = Math.ceil(x);
+ y = Math.ceil(y);
+ this.putColor(image, x, y, size.width);
+ }
+ return image;
+ }
+
+ setPixel(x, y) {
+ this.pixelsCollection.push({ x: x, y: y });
+ }
+
+ putColor(image, x, y, width) {
+ image.data[4 * (x + width * y) + 0] = 125;
+ image.data[4 * (x + width * y) + 1] = 125;
+ image.data[4 * (x + width * y) + 2] = 125;
+ image.data[4 * (x + width * y) + 3] = 255;
+ return image;
+ }
+
+ max(selector) {
+ let max = Number.MIN_SAFE_INTEGER;
+ for (let pixel of this.pixelsCollection) {
+ let element = selector(pixel);
+ if (element > max) {
+ max = element;
+ }
+ }
+ return max;
+ }
+
+ min(selector) {
+ let min = Number.MAX_SAFE_INTEGER;
+ for (let pixel of this.pixelsCollection) {
+ if (selector(pixel) < min) {
+ min = selector(pixel);
+ }
+ }
+ return min;
+ }
+}
+
+function getDragonFractal(image, size) {
+ const iterCount = 100000;
+ let x = 1.0;
+ let x1 = 0.0;
+ let y = 0.0;
+ let y1 = 0.0;
+ const angle45 = Math.PI / 4;
+ const pixels = new Pixels();
+ for (let i = 0; i < iterCount; i++) {
+ const rnd = Math.random() > 0.5 ? 1 : 0;
+ x1 = (x * Math.cos(angle45 + Math.PI / 2 * rnd)
+ - y * Math.sin(angle45 + Math.PI / 2 * rnd)) / Math.sqrt(2) + 1 * rnd;
+ y1 = (x * Math.sin(angle45 + Math.PI / 2 * rnd)
+ + y * Math.cos(angle45 + Math.PI / 2 * rnd)) / Math.sqrt(2);
+ x = x1;
+ y = y1;
+ pixels.setPixel(x, y);
+ }
+ return pixels.drawDragonFractal(image, size);
+}
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index 39a9d04..77c72cb 100644
--- a/index.html
+++ b/index.html
@@ -1,110 +1,28 @@
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