From 964898bea24b234e41e1f22d52f6c4d0601e03e9 Mon Sep 17 00:00:00 2001
From: liabru <liambrum@gmail.com>
Date: Tue, 29 Apr 2014 17:34:45 +0100
Subject: [PATCH] added Composite.rebase

---
 src/body/Composite.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/body/Composite.js b/src/body/Composite.js
index 31f8001..3ccb0bc 100644
--- a/src/body/Composite.js
+++ b/src/body/Composite.js
@@ -396,4 +396,24 @@ var Composite = {};
         return compositeA;
     };
 
+    /**
+     * Assigns new ids for all objects in the composite, recursively
+     * @method rebase
+     * @param {composite} composite
+     * @return {composite} Returns composite
+     */
+    Composite.rebase = function(composite) {
+        var objects = Composite.allBodies(composite)
+                        .concat(Composite.allConstraints(composite))
+                        .concat(Composite.allComposites(composite));
+
+        for (var i = 0; i < objects.length; i++) {
+            objects[i].id = Common.nextId();
+        }
+
+        Composite.setModified(composite, true, true, false);
+
+        return composite;
+    };
+
 })();
\ No newline at end of file