Removed use of Common.indexOf after some horrible perf results.

Author: photonstorm

v3/src/physics/matter-js/lib/body/Composite.js

@@ -176,7 +176,8 @@ var Body = require('./Body');
      * @return {composite} The original compositeA with the composite removed
      */
     Composite.removeComposite = function(compositeA, compositeB, deep) {
-        var position = Common.indexOf(compositeA.composites, compositeB);
+        // var position = Common.indexOf(compositeA.composites, compositeB);
+        var position = compositeA.composites.indexOf(compositeB);
         if (position !== -1) {
             Composite.removeCompositeAt(compositeA, position);
             Composite.setModified(compositeA, true, true, false);
@@ -229,7 +230,8 @@ var Body = require('./Body');
      * @return {composite} The original composite with the body removed
      */
     Composite.removeBody = function(composite, body, deep) {
-        var position = Common.indexOf(composite.bodies, body);
+        // var position = Common.indexOf(composite.bodies, body);
+        var position = composite.bodies.indexOf(body);
         if (position !== -1) {
             Composite.removeBodyAt(composite, position);
             Composite.setModified(composite, true, true, false);
@@ -282,7 +284,8 @@ var Body = require('./Body');
      * @return {composite} The original composite with the constraint removed
      */
     Composite.removeConstraint = function(composite, constraint, deep) {
-        var position = Common.indexOf(composite.constraints, constraint);
+        // var position = Common.indexOf(composite.constraints, constraint);
+        var position = composite.constraints.indexOf(constraint);
         if (position !== -1) {
             Composite.removeConstraintAt(composite, position);
         }

v3/src/physics/matter-js/lib/collision/Grid.js

@@ -272,7 +272,8 @@ var Common = require('../core/Common');
      */
     var _bucketRemoveBody = function(grid, bucket, body) {
         // remove from bucket
-        bucket.splice(Common.indexOf(bucket, body), 1);
+        // bucket.splice(Common.indexOf(bucket, body), 1);
+        bucket.splice(bucket.indexOf(body), 1);
 
         // update pair counts
         for (var i = 0; i < bucket.length; i++) {

v3/src/physics/matter-js/lib/collision/Pairs.js

@@ -91,7 +91,8 @@ var Common = require('../core/Common');
         // deactivate previously active pairs that are now inactive
         for (i = 0; i < pairsList.length; i++) {
             pair = pairsList[i];
-            if (pair.isActive && Common.indexOf(activePairIds, pair.id) === -1) {
+            // if (pair.isActive && Common.indexOf(activePairIds, pair.id) === -1) {
+            if (pair.isActive && activePairIds.indexOf(pair.id) === -1) {
                 Pair.setActive(pair, false, timestamp);
                 collisionEnd.push(pair);
             }