From 758bbe831f1f4e7143e55cf711462a184cd8e797 Mon Sep 17 00:00:00 2001
From: liabru <liabru@brm.io>
Date: Sat, 3 Sep 2016 23:27:44 +0100
Subject: [PATCH] added Example.attractors

---
 demo/index.html        |  1 +
 demo/js/Demo.js        |  6 -----
 examples/attractors.js | 52 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+), 6 deletions(-)
 create mode 100644 examples/attractors.js

diff --git a/demo/index.html b/demo/index.html
index ee34922..9029700 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -61,6 +61,7 @@
                     <option value="avalanche">Avalanche</option>
                     <option value="softBody">Basic Soft Bodies</option>
                     <option value="cloth">Cloth</option>
+                    <option value="attractors">Attractors (Plugin)</option>
                     <option value="events">Events</option>
                     <option value="collisionFiltering">Collision Filtering</option>
                     <option value="sensors">Sensors</option>
diff --git a/demo/js/Demo.js b/demo/js/Demo.js
index c623753..9c66b11 100644
--- a/demo/js/Demo.js
+++ b/demo/js/Demo.js
@@ -56,12 +56,6 @@
         var demo = Demo.create();
         Matter.Demo._demo = demo;
 
-        Matter.use(
-            'matter-plugin-fake',
-            'matter-plugin-2',
-            window.MatterPlugin
-        );
-
         // get container element for the canvas
         demo.container = document.getElementById('canvas-container');
 
diff --git a/examples/attractors.js b/examples/attractors.js
new file mode 100644
index 0000000..3366317
--- /dev/null
+++ b/examples/attractors.js
@@ -0,0 +1,52 @@
+(function() {
+
+    var World = Matter.World,
+        Bodies = Matter.Bodies,
+        Body = Matter.Body,
+        Common = Matter.Common;
+
+    Example.attractors = function(demo) {
+        var engine = demo.engine,
+            world = engine.world;
+
+        Matter.use(
+            'matter-gravity', 
+            'matter-world-wrap'
+        );
+
+        world.bounds = {
+            min: { x: 0, y: 0 },
+            max: { x: 800, y: 600 }
+        };
+
+        world.bodies = [];
+        world.gravity.scale = 0;
+
+        var G = 0.001;
+
+        for (var i = 0; i < 200; i += 1) {
+            var body = Bodies.circle(
+                Common.random(10, 790), 
+                Common.random(10, 590),
+                Common.random(4, 10),
+                {
+                    mass: Common.random(10, 20),
+                    gravity: G,
+                    frictionAir: 0
+                }
+            );
+
+            Body.setVelocity(body, { 
+                x: Common.random(-2, 2), 
+                y: Common.random(-2, 2)
+            });
+
+            World.add(world, body);
+        }
+        
+        var renderOptions = demo.render.options;
+        renderOptions.showAngleIndicator = false;
+        renderOptions.showPositions = true;
+    };
+
+})();
\ No newline at end of file