From 6222c87ecd77773e72a269adb05d6733ea8a1e65 Mon Sep 17 00:00:00 2001
From: Gareth Whittaker <gareth.whittaker@tombola.com>
Date: Sun, 5 Feb 2017 22:20:53 +0000
Subject: [PATCH] initial commit

---
 .gitignore        |  1 +
 animation-loop.js | 34 ++++++++++++++++++++++++++++++++++
 package.json      | 24 ++++++++++++++++++++++++
 3 files changed, 59 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 animation-loop.js
 create mode 100644 package.json

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c2658d7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/animation-loop.js b/animation-loop.js
new file mode 100644
index 0000000..8e25e69
--- /dev/null
+++ b/animation-loop.js
@@ -0,0 +1,34 @@
+import { Observable } from 'rxjs/Observable'
+import { Subject } from 'rxjs/Subject'
+import { animationFrame } from 'rxjs/scheduler/animationFrame'
+import 'rxjs/add/observable/of'
+import 'rxjs/add/observable/never'
+import 'rxjs/add/operator/repeat'
+import 'rxjs/add/operator/switchMap'
+
+const animationLoop = () => {
+    const frame = Observable
+        .of(null, animationFrame)
+        .repeat()
+
+    const noop = Observable.never()
+
+    const loop = new Subject()
+        .switchMap((active) => active ? frame : noop)
+
+    return {
+        start() {
+            loop.next(true)
+        },
+
+        stop() {
+            loop.next(false)
+        },
+
+        subscribe(observer) {
+            return loop.subscribe(observer)
+        }
+    }
+}
+
+export { animationLoop }
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..baa2664
--- /dev/null
+++ b/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "rxjs-animation-loop",
+  "version": "0.1.0",
+  "description": "This module provides a game / animation loop based upon requestAnimationFrame.",
+  "author": "Gareth Whittaker <garethwhittaker@hotmail.com>",
+  "main": "animation-loop.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/garethwhittaker/rxjs-animation-loop"
+  },
+  "bugs": {
+    "url": "https://github.com/garethwhittaker/rxjs-animation-loop/issues"
+  },
+  "keywords": [
+    "animation loop",
+    "game loop",
+    "animationframe",
+    "requestanimationframe"
+  ],
+  "dependencies": {
+    "rxjs": "5.1.0"
+  },
+  "license": "MIT"
+}