diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..952573d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+main.wasm
+.idea
diff --git a/.nojekyll b/.nojekyll
new file mode 100644
index 0000000..e69de29
diff --git a/Caddyfile b/Caddyfile
new file mode 100644
index 0000000..07f48ba
--- /dev/null
+++ b/Caddyfile
@@ -0,0 +1,2 @@
+0.0.0.0:8080
+mime .wasm application/wasm
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c488a27
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# Boids simulation
+
+Boids algorithm implementation in Go language, compiled to WebAssembly
+
+[Live demo](pashawnn.github.io/boids_go/)
+
+
+## Compilation
+
+```
+GOOS=js GOARCH=wasm go build -o main.wasm 
+```
+
+Compiled binary can be found in `Releases` section of GitHub repository. Note that you can't just open index.html from local filesystem. You need web-server which sets correct mime type (`mime .wasm application/wasm`) to run WebAssembly. Simpliest solution is to download Caddy server and just run:
+```
+caddy
+```
+from project root.
\ No newline at end of file
diff --git a/boids.go b/boids.go
new file mode 100644
index 0000000..1368ed9
--- /dev/null
+++ b/boids.go
@@ -0,0 +1,145 @@
+package main
+
+import (
+	"github.com/go-gl/mathgl/mgl32"
+	"math"
+	"math/rand"
+)
+
+
+func dist(p, q mgl32.Vec2) float32 {
+	return float32(math.Sqrt(math.Pow(float64(q[0] - p[0]), 2) + math.Pow(float64(q[1] - p[1]), 2)))
+}
+
+func limit(p mgl32.Vec2, lim float32) mgl32.Vec2{
+	if p[0] > lim {
+		p[0] = lim
+	} else if p[0] < -lim {
+		p[0] = -lim
+	}
+	if p[1] > lim {
+		p[1] = lim
+	} else if p[1] < -lim {
+		p[1] = -lim
+	}
+	return p
+}
+
+
+var alignmentPerception = float32(20.0)
+var cohesionPerception = float32(40.0)
+var divisionPerception = float32(20.0)
+var alignmentCoef = float32(1.0)
+var cohesionCoef = float32(1.0)
+var divisionCoef = float32(1.0)
+var maxSpeed = float32(4)
+var maxForce = float32(1)
+var avg mgl32.Vec2
+var total int
+
+
+type Boid struct{
+	siblings *[]Boid
+	position mgl32.Vec2
+	velocity mgl32.Vec2
+	acceleration mgl32.Vec2
+}
+
+
+func NewBoid(x, y float32, boids *[]Boid) Boid {
+	b := Boid{
+		siblings: boids,
+		position:mgl32.Vec2{x, y},
+		velocity:mgl32.Vec2{(rand.Float32() * 3) - 1.5, (rand.Float32() * 3) - 1.5},
+		acceleration:mgl32.Vec2{0,0},
+	}
+	return b
+}
+
+
+func (boid* Boid) alignment() mgl32.Vec2 {
+	avg = mgl32.Vec2{0,0}
+	total = 0
+
+	for _, sibling := range *boid.siblings {
+		if (sibling != *boid) && dist(boid.position, sibling.position) < alignmentPerception {
+			avg = avg.Add(sibling.velocity)
+			total++
+		}
+	}
+	if total > 0 {
+		avg = avg.Mul(1.0 / float32(total) * alignmentCoef)
+		avg = avg.Normalize().Mul(maxSpeed)
+		avg = avg.Sub(boid.velocity)
+		avg = limit(avg, maxForce)
+	}
+	return avg
+}
+
+
+func (boid* Boid) cohesion() mgl32.Vec2 {
+	avg = mgl32.Vec2{0,0}
+	total = 0
+
+	for _, sibling := range *boid.siblings {
+		if (sibling != *boid) && dist(boid.position, sibling.position) < cohesionPerception {
+			avg = avg.Add(sibling.position)
+			total++
+		}
+	}
+	if total > 0 {
+		avg = avg.Mul(1.0 / float32(total) * cohesionCoef)
+		avg = avg.Sub(boid.position)
+		avg = avg.Normalize().Mul(maxSpeed)
+		avg = avg.Sub(boid.velocity)
+		avg = limit(avg, maxForce)
+	}
+	return avg
+}
+
+
+func (boid* Boid) divison() mgl32.Vec2 {
+	avg = mgl32.Vec2{0,0}
+	total = 0
+
+	for _, sibling := range *boid.siblings {
+		d := dist(boid.position, sibling.position)
+		if (sibling != *boid) && d < divisionPerception {
+			diff := boid.position.Sub(sibling.position).Mul(1/(d*d))
+			avg = avg.Add(diff)
+			total++
+		}
+	}
+	if total > 0 {
+		avg = avg.Mul(1.0 / float32(total) * divisionCoef)
+		avg = avg.Normalize().Mul(maxSpeed)
+		avg = avg.Sub(boid.velocity)
+		avg = limit(avg, maxForce)
+	}
+	return avg
+}
+
+
+func (boid* Boid) Tick() {
+	boid.acceleration = boid.acceleration.Add(boid.alignment().Mul(1.5))
+	boid.acceleration = boid.acceleration.Add(boid.cohesion().Mul(1.0))
+	boid.acceleration = boid.acceleration.Add(boid.divison().Mul(2.0))
+
+	boid.position = boid.position.Add(boid.velocity)
+	boid.velocity = boid.velocity.Add(boid.acceleration.Mul(0.5))
+	boid.velocity = limit(boid.velocity, maxSpeed)
+	boid.acceleration = boid.acceleration.Mul(0)
+
+	if float64(boid.position.X()) > width {
+		boid.position[0] = 0
+	} else if float64(boid.position.X()) < 0 {
+		boid.position[0] = float32(width)
+	}
+	if float64(boid.position.Y()) > height {
+		boid.position[1] = 0
+	} else if float64(boid.position.Y()) < 0 {
+		boid.position[1] = float32(height)
+	}
+
+
+}
\ No newline at end of file
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..e0684fc
--- /dev/null
+++ b/index.html
@@ -0,0 +1,22 @@
+<html>
+	<head>
+		<meta charset="utf-8" />
+		<title>Go WebAssembly - Boids</title>
+		<meta name="theme-color" content="#000000" />
+		<meta name="viewport" content="width=device-width,initial-scale=1.0" />
+	  	<style>body{height:100%;width:100%}</style>
+	
+		<script type="text/javascript" src="./wasm_exec.js"></script>
+		<script>
+			const go = new Go();
+			WebAssembly.instantiateStreaming(fetch('main.wasm'),go.importObject).then( res=> {
+				go.run(res.instance)	
+			})
+		</script>
+	<style>
+	</style>
+	</head>
+	<body>
+
+	</body>
+</html>
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..1bd4ee8
--- /dev/null
+++ b/main.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"github.com/llgcode/draw2d/draw2dimg"
+	"github.com/llgcode/draw2d/draw2dkit"
+	"github.com/markfarnan/go-canvas/canvas"
+	"image/color"
+	"math/rand"
+)
+
+var boids []Boid
+
+var done chan struct{}
+
+var cvs *canvas.Canvas2d
+var width float64
+var height float64
+
+
+func main() {
+	cvs, _ = canvas.NewCanvas2d(true)
+	height = float64(cvs.Height())
+	width = float64(cvs.Width())
+	for i := 0; i < 70; i++ {
+
+		boids = append(boids, NewBoid(float32(rand.Intn(500)), float32(rand.Intn(700)), &boids))
+	}
+	cvs.Start(60, Render)
+	<-done
+}
+
+
+func tick() {
+	for i, _ := range boids {
+		boids[i].Tick()
+	}
+}
+
+func drawBoid(gc *draw2dimg.GraphicContext, b Boid) {
+	gc.BeginPath()
+	draw2dkit.Circle(gc, float64(b.position.X()), float64(b.position.Y()), 5)
+	gc.FillStroke()
+	gc.Close()
+
+	x, y := float64(b.position[0]), float64(b.position[1])
+	sec := b.position.Sub(b.velocity.Normalize().Mul(10))
+	tX, tY := float64(sec[0]), float64(sec[1])
+	gc.BeginPath()
+	gc.MoveTo(x, y)
+	gc.LineTo(tX, tY)
+	gc.Stroke()
+	gc.Close()
+
+	//gc.BeginPath()
+	//draw2dkit.Circle(gc, float64(b.position.X()), float64(b.position.Y()), 20)
+	//gc.Stroke()
+	//gc.Close()
+}
+
+func Render(gc *draw2dimg.GraphicContext) bool {
+	tick()
+	gc.SetFillColor(color.RGBA{0xff, 0xff, 0xff, 0xff})
+	gc.Clear()
+
+	gc.SetFillColor(color.RGBA{0xff, 0x00, 0x00, 0xff})
+	gc.SetStrokeColor(color.RGBA{0xff, 0x00, 0x00, 0xff})
+
+	for _, boid := range boids {
+		drawBoid(gc, boid)
+	}
+
+	return true
+}
diff --git a/wasm_exec.js b/wasm_exec.js
new file mode 100644
index 0000000..165d567
--- /dev/null
+++ b/wasm_exec.js
@@ -0,0 +1,465 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+(() => {
+	if (typeof global !== "undefined") {
+		// global already exists
+	} else if (typeof window !== "undefined") {
+		window.global = window;
+	} else if (typeof self !== "undefined") {
+		self.global = self;
+	} else {
+		throw new Error("cannot export Go (neither global, window nor self is defined)");
+	}
+
+	// Map web browser API and Node.js API to a single common API (preferring web standards over Node.js API).
+	const isNodeJS = global.process && global.process.title === "node";
+	if (isNodeJS) {
+		global.require = require;
+		global.fs = require("fs");
+
+		const nodeCrypto = require("crypto");
+		global.crypto = {
+			getRandomValues(b) {
+				nodeCrypto.randomFillSync(b);
+			},
+		};
+
+		global.performance = {
+			now() {
+				const [sec, nsec] = process.hrtime();
+				return sec * 1000 + nsec / 1000000;
+			},
+		};
+
+		const util = require("util");
+		global.TextEncoder = util.TextEncoder;
+		global.TextDecoder = util.TextDecoder;
+	} else {
+		let outputBuf = "";
+		global.fs = {
+			constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
+			writeSync(fd, buf) {
+				outputBuf += decoder.decode(buf);
+				const nl = outputBuf.lastIndexOf("\n");
+				if (nl != -1) {
+					console.log(outputBuf.substr(0, nl));
+					outputBuf = outputBuf.substr(nl + 1);
+				}
+				return buf.length;
+			},
+			write(fd, buf, offset, length, position, callback) {
+				if (offset !== 0 || length !== buf.length || position !== null) {
+					throw new Error("not implemented");
+				}
+				const n = this.writeSync(fd, buf);
+				callback(null, n);
+			},
+			open(path, flags, mode, callback) {
+				const err = new Error("not implemented");
+				err.code = "ENOSYS";
+				callback(err);
+			},
+			read(fd, buffer, offset, length, position, callback) {
+				const err = new Error("not implemented");
+				err.code = "ENOSYS";
+				callback(err);
+			},
+			fsync(fd, callback) {
+				callback(null);
+			},
+		};
+	}
+
+	const encoder = new TextEncoder("utf-8");
+	const decoder = new TextDecoder("utf-8");
+
+	global.Go = class {
+		constructor() {
+			this.argv = ["js"];
+			this.env = {};
+			this.exit = (code) => {
+				if (code !== 0) {
+					console.warn("exit code:", code);
+				}
+			};
+			this._exitPromise = new Promise((resolve) => {
+				this._resolveExitPromise = resolve;
+			});
+			this._pendingEvent = null;
+			this._scheduledTimeouts = new Map();
+			this._nextCallbackTimeoutID = 1;
+
+			const mem = () => {
+				// The buffer may change when requesting more memory.
+				return new DataView(this._inst.exports.mem.buffer);
+			}
+
+			const setInt64 = (addr, v) => {
+				mem().setUint32(addr + 0, v, true);
+				mem().setUint32(addr + 4, Math.floor(v / 4294967296), true);
+			}
+
+			const getInt64 = (addr) => {
+				const low = mem().getUint32(addr + 0, true);
+				const high = mem().getInt32(addr + 4, true);
+				return low + high * 4294967296;
+			}
+
+			const loadValue = (addr) => {
+				const f = mem().getFloat64(addr, true);
+				if (f === 0) {
+					return undefined;
+				}
+				if (!isNaN(f)) {
+					return f;
+				}
+
+				const id = mem().getUint32(addr, true);
+				return this._values[id];
+			}
+
+			const storeValue = (addr, v) => {
+				const nanHead = 0x7FF80000;
+
+				if (typeof v === "number") {
+					if (isNaN(v)) {
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 0, true);
+						return;
+					}
+					if (v === 0) {
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 1, true);
+						return;
+					}
+					mem().setFloat64(addr, v, true);
+					return;
+				}
+
+				switch (v) {
+					case undefined:
+						mem().setFloat64(addr, 0, true);
+						return;
+					case null:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 2, true);
+						return;
+					case true:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 3, true);
+						return;
+					case false:
+						mem().setUint32(addr + 4, nanHead, true);
+						mem().setUint32(addr, 4, true);
+						return;
+				}
+
+				let ref = this._refs.get(v);
+				if (ref === undefined) {
+					ref = this._values.length;
+					this._values.push(v);
+					this._refs.set(v, ref);
+				}
+				let typeFlag = 0;
+				switch (typeof v) {
+					case "string":
+						typeFlag = 1;
+						break;
+					case "symbol":
+						typeFlag = 2;
+						break;
+					case "function":
+						typeFlag = 3;
+						break;
+				}
+				mem().setUint32(addr + 4, nanHead | typeFlag, true);
+				mem().setUint32(addr, ref, true);
+			}
+
+			const loadSlice = (addr) => {
+				const array = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				return new Uint8Array(this._inst.exports.mem.buffer, array, len);
+			}
+
+			const loadSliceOfValues = (addr) => {
+				const array = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				const a = new Array(len);
+				for (let i = 0; i < len; i++) {
+					a[i] = loadValue(array + i * 8);
+				}
+				return a;
+			}
+
+			const loadString = (addr) => {
+				const saddr = getInt64(addr + 0);
+				const len = getInt64(addr + 8);
+				return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
+			}
+
+			const timeOrigin = Date.now() - performance.now();
+			this.importObject = {
+				go: {
+					// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
+					// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
+					// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
+					// This changes the SP, thus we have to update the SP used by the imported function.
+
+					// func wasmExit(code int32)
+					"runtime.wasmExit": (sp) => {
+						const code = mem().getInt32(sp + 8, true);
+						this.exited = true;
+						delete this._inst;
+						delete this._values;
+						delete this._refs;
+						this.exit(code);
+					},
+
+					// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
+					"runtime.wasmWrite": (sp) => {
+						const fd = getInt64(sp + 8);
+						const p = getInt64(sp + 16);
+						const n = mem().getInt32(sp + 24, true);
+						fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
+					},
+
+					// func nanotime() int64
+					"runtime.nanotime": (sp) => {
+						setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
+					},
+
+					// func walltime() (sec int64, nsec int32)
+					"runtime.walltime": (sp) => {
+						const msec = (new Date).getTime();
+						setInt64(sp + 8, msec / 1000);
+						mem().setInt32(sp + 16, (msec % 1000) * 1000000, true);
+					},
+
+					// func scheduleTimeoutEvent(delay int64) int32
+					"runtime.scheduleTimeoutEvent": (sp) => {
+						const id = this._nextCallbackTimeoutID;
+						this._nextCallbackTimeoutID++;
+						this._scheduledTimeouts.set(id, setTimeout(
+							() => { this._resume(); },
+							getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early
+						));
+						mem().setInt32(sp + 16, id, true);
+					},
+
+					// func clearTimeoutEvent(id int32)
+					"runtime.clearTimeoutEvent": (sp) => {
+						const id = mem().getInt32(sp + 8, true);
+						clearTimeout(this._scheduledTimeouts.get(id));
+						this._scheduledTimeouts.delete(id);
+					},
+
+					// func getRandomData(r []byte)
+					"runtime.getRandomData": (sp) => {
+						crypto.getRandomValues(loadSlice(sp + 8));
+					},
+
+					// func stringVal(value string) ref
+					"syscall/js.stringVal": (sp) => {
+						storeValue(sp + 24, loadString(sp + 8));
+					},
+
+					// func valueGet(v ref, p string) ref
+					"syscall/js.valueGet": (sp) => {
+						const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
+						sp = this._inst.exports.getsp(); // see comment above
+						storeValue(sp + 32, result);
+					},
+
+					// func valueSet(v ref, p string, x ref)
+					"syscall/js.valueSet": (sp) => {
+						Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
+					},
+
+					// func valueIndex(v ref, i int) ref
+					"syscall/js.valueIndex": (sp) => {
+						storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
+					},
+
+					// valueSetIndex(v ref, i int, x ref)
+					"syscall/js.valueSetIndex": (sp) => {
+						Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
+					},
+
+					// func valueCall(v ref, m string, args []ref) (ref, bool)
+					"syscall/js.valueCall": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const m = Reflect.get(v, loadString(sp + 16));
+							const args = loadSliceOfValues(sp + 32);
+							const result = Reflect.apply(m, v, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 56, result);
+							mem().setUint8(sp + 64, 1);
+						} catch (err) {
+							storeValue(sp + 56, err);
+							mem().setUint8(sp + 64, 0);
+						}
+					},
+
+					// func valueInvoke(v ref, args []ref) (ref, bool)
+					"syscall/js.valueInvoke": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const args = loadSliceOfValues(sp + 16);
+							const result = Reflect.apply(v, undefined, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 40, result);
+							mem().setUint8(sp + 48, 1);
+						} catch (err) {
+							storeValue(sp + 40, err);
+							mem().setUint8(sp + 48, 0);
+						}
+					},
+
+					// func valueNew(v ref, args []ref) (ref, bool)
+					"syscall/js.valueNew": (sp) => {
+						try {
+							const v = loadValue(sp + 8);
+							const args = loadSliceOfValues(sp + 16);
+							const result = Reflect.construct(v, args);
+							sp = this._inst.exports.getsp(); // see comment above
+							storeValue(sp + 40, result);
+							mem().setUint8(sp + 48, 1);
+						} catch (err) {
+							storeValue(sp + 40, err);
+							mem().setUint8(sp + 48, 0);
+						}
+					},
+
+					// func valueLength(v ref) int
+					"syscall/js.valueLength": (sp) => {
+						setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
+					},
+
+					// valuePrepareString(v ref) (ref, int)
+					"syscall/js.valuePrepareString": (sp) => {
+						const str = encoder.encode(String(loadValue(sp + 8)));
+						storeValue(sp + 16, str);
+						setInt64(sp + 24, str.length);
+					},
+
+					// valueLoadString(v ref, b []byte)
+					"syscall/js.valueLoadString": (sp) => {
+						const str = loadValue(sp + 8);
+						loadSlice(sp + 16).set(str);
+					},
+
+					// func valueInstanceOf(v ref, t ref) bool
+					"syscall/js.valueInstanceOf": (sp) => {
+						mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
+					},
+
+					"debug": (value) => {
+						console.log(value);
+					},
+				}
+			};
+		}
+
+		async run(instance) {
+			this._inst = instance;
+			this._values = [ // TODO: garbage collection
+				NaN,
+				0,
+				null,
+				true,
+				false,
+				global,
+				this._inst.exports.mem,
+				this,
+			];
+			this._refs = new Map();
+			this.exited = false;
+
+			const mem = new DataView(this._inst.exports.mem.buffer)
+
+			// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
+			let offset = 4096;
+
+			const strPtr = (str) => {
+				let ptr = offset;
+				new Uint8Array(mem.buffer, offset, str.length + 1).set(encoder.encode(str + "\0"));
+				offset += str.length + (8 - (str.length % 8));
+				return ptr;
+			};
+
+			const argc = this.argv.length;
+
+			const argvPtrs = [];
+			this.argv.forEach((arg) => {
+				argvPtrs.push(strPtr(arg));
+			});
+
+			const keys = Object.keys(this.env).sort();
+			argvPtrs.push(keys.length);
+			keys.forEach((key) => {
+				argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
+			});
+
+			const argv = offset;
+			argvPtrs.forEach((ptr) => {
+				mem.setUint32(offset, ptr, true);
+				mem.setUint32(offset + 4, 0, true);
+				offset += 8;
+			});
+
+			this._inst.exports.run(argc, argv);
+			if (this.exited) {
+				this._resolveExitPromise();
+			}
+			await this._exitPromise;
+		}
+
+		_resume() {
+			if (this.exited) {
+				throw new Error("Go program has already exited");
+			}
+			this._inst.exports.resume();
+			if (this.exited) {
+				this._resolveExitPromise();
+			}
+		}
+
+		_makeFuncWrapper(id) {
+			const go = this;
+			return function () {
+				const event = { id: id, this: this, args: arguments };
+				go._pendingEvent = event;
+				go._resume();
+				return event.result;
+			};
+		}
+	}
+
+	if (isNodeJS) {
+		if (process.argv.length < 3) {
+			process.stderr.write("usage: go_js_wasm_exec [wasm binary] [arguments]\n");
+			process.exit(1);
+		}
+
+		const go = new Go();
+		go.argv = process.argv.slice(2);
+		go.env = Object.assign({ TMPDIR: require("os").tmpdir() }, process.env);
+		go.exit = process.exit;
+		WebAssembly.instantiate(fs.readFileSync(process.argv[2]), go.importObject).then((result) => {
+			process.on("exit", (code) => { // Node.js exits if no event handler is pending
+				if (code === 0 && !go.exited) {
+					// deadlock, make Go print error and stack traces
+					go._pendingEvent = { id: 0 };
+					go._resume();
+				}
+			});
+			return go.run(result.instance);
+		}).catch((err) => {
+			throw err;
+		});
+	}
+})();