From 0f7406f7f40a97c4b05b718b521d59817bbe42f5 Mon Sep 17 00:00:00 2001
From: Jonathan Puckey <me@jonathanpuckey.com>
Date: Wed, 10 Aug 2011 21:04:01 +0200
Subject: [PATCH] Add Node.js example.

---
 examples/Node.js/AnimatedStar.js | 49 ++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 examples/Node.js/AnimatedStar.js

diff --git a/examples/Node.js/AnimatedStar.js b/examples/Node.js/AnimatedStar.js
new file mode 100644
index 00000000..9aebea2b
--- /dev/null
+++ b/examples/Node.js/AnimatedStar.js
@@ -0,0 +1,49 @@
+var paper = require('paper');
+paper.setup(new paper.Canvas(1024, 768));
+
+var layer = paper.project.activeLayer;
+
+var values = {
+	count: 34,
+	points: 32
+};
+
+initialize();
+
+paper.view.exportFrames({
+	amount: 100,
+	directory: __dirname,
+	onComplete: function() {
+		console.log('Done exporting.');
+	},
+	onProgress: function(event) {
+		console.log(event.percentage + '% complete, frame took: ' + event.delta);
+	}
+});
+
+function initialize() {
+	for (var i = 0; i < values.count; i++) {
+		var offset = new paper.Point(20 + 10 * i, 0);
+		var path = new paper.Path();
+		path.fillColor = i % 2 ? 'red' : 'black';
+		path.closed = true;
+
+		var l = offset.length;
+		for (var j = 0; j < values.points * 2; j++) {
+			offset.angle += 360 / values.points;
+			var vector = offset.normalize(l * (j % 2 ? 0.1 : -0.1));
+			path.add(offset.add(vector));
+		}
+		path.smooth();
+		layer.insertChild(0, path);
+	}
+	layer.fitBounds(paper.view.bounds);
+}
+
+paper.view.onFrame = function(event) {
+	for (var i = 0, l = layer.children.length; i < l; i++) {
+		var item = layer.children[i];
+		var angle = (values.count - i) * Math.sin(event.count / 128) / 10;
+		item.rotate(angle);
+	}
+}