From e186ccd7e20cb204b33a0b211fb45d3cbade44a1 Mon Sep 17 00:00:00 2001
From: liabru <liabru@brm.io>
Date: Wed, 4 Jun 2014 15:41:17 +0100
Subject: [PATCH] improved Demo.manipulation

---
 demo/js/Demo.js | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/demo/js/Demo.js b/demo/js/Demo.js
index a00d23e..e1ffdf3 100644
--- a/demo/js/Demo.js
+++ b/demo/js/Demo.js
@@ -244,9 +244,10 @@
             bodyC = Bodies.rectangle(300, 200, 50, 50),
             bodyD = Bodies.rectangle(400, 200, 50, 50),
             bodyE = Bodies.rectangle(550, 200, 50, 50),
-            bodyF = Bodies.rectangle(700, 200, 50, 50);
+            bodyF = Bodies.rectangle(700, 200, 50, 50),
+            bodyG = Bodies.circle(400, 100, 25);
 
-        World.add(_world, [bodyA, bodyB, bodyC, bodyD, bodyE, bodyF]);
+        World.add(_world, [bodyA, bodyB, bodyC, bodyD, bodyE, bodyF, bodyG]);
 
         var counter = 0,
             scaleFactor = 1.01;
@@ -255,10 +256,13 @@
             Events.on(_engine, 'tick', function(event) {
                 counter += 1;
 
+                if (counter === 40)
+                    Body.setStatic(bodyG, true);
+
                 if (scaleFactor > 1) {
                     Body.scale(bodyF, scaleFactor, scaleFactor);
 
-                    // modify body vertices
+                    // modify bodyE vertices
                     bodyE.vertices[0].x -= 0.2;
                     bodyE.vertices[0].y -= 0.2;
                     bodyE.vertices[1].x += 0.2;
@@ -266,9 +270,12 @@
                     Body.setVertices(bodyE, bodyE.vertices);
                 }
 
+                // make bodyA move up and down and rotate constantly
+                Body.setPosition(bodyA, { x: 100, y: 300 + 100 * Math.sin(_engine.timing.timestamp * 0.005) });
+                Body.setAngularVelocity(bodyA, 0.02);
+
                 // every 1.5 sec
                 if (counter >= 60 * 1.5) {
-                    Body.setPosition(bodyA, { x: 100, y: 200 });
                     Body.setVelocity(bodyB, { x: 0, y: -10 });
                     Body.setAngle(bodyC, -Math.PI * 0.26);
                     Body.setAngularVelocity(bodyD, 0.2);
@@ -281,6 +288,7 @@
         );
 
         var renderOptions = _engine.render.options;
+        renderOptions.wireframes = false;
         renderOptions.showAxes = true;
         renderOptions.showCollisions = true;
     };