Add the new collision events plugin.

Author: photonstorm

src/physics/matter-js/lib/plugins/MatterCollisionEvents.js

@@ -0,0 +1,65 @@
+var Matter = require('../../CustomMain');
+
+var MatterCollisionEvents = {
+  name: 'matter-collision-events',
+  version: '0.1.5',
+  for: 'matter-js@^0.14.2',
+  silent: true, // no console log please
+
+  install: function(matter) {
+    // add the onCollide, onCollideEnd, and onCollideActive callback handlers
+    // to the native Matter.Body created
+    var create = matter.Body.create;
+    matter.Body.create = function() {
+      var body = create.apply(null, arguments);
+      body.onCollide = function(cb) { body._mceOC = cb; }
+      body.onCollideEnd = function(cb) { body._mceOCE = cb; }
+      body.onCollideActive = function(cb) { body._mceOCA = cb; }
+      return body;
+    }
+    matter.after('Engine.create', function() {
+      matter.Events.on(this, 'collisionStart', function(event) {
+        event.pairs.map(function(pair) {
+          matter.Events.trigger(pair.bodyA, 'onCollide', { pair : pair });
+          matter.Events.trigger(pair.bodyB, 'onCollide', { pair : pair });
+          pair.bodyA._mceOC &&
+            pair.bodyA._mceOC(pair)
+          pair.bodyB._mceOC &&
+            pair.bodyB._mceOC(pair)
+        });
+      });
+
+      matter.Events.on(this, 'collisionActive', function(event) {
+        event.pairs.map(function(pair) {
+          matter.Events.trigger(
+            pair.bodyA,
+            'onCollideActive',
+            { pair: pair }
+          );
+          matter.Events.trigger(
+            pair.bodyB,
+            'onCollideActive',
+            { pair: pair }
+          );
+          pair.bodyA._mceOCA &&
+            pair.bodyA._mceOCA(pair)
+          pair.bodyB._mceOCA &&
+            pair.bodyB._mceOCA(pair)
+        });
+      });
+
+      matter.Events.on(this, 'collisionEnd', function(event) {
+        event.pairs.map(function(pair) {
+          matter.Events.trigger(pair.bodyA, 'onCollideEnd', { pair : pair });
+          matter.Events.trigger(pair.bodyB, 'onCollideEnd', { pair : pair });
+          pair.bodyA._mceOCE &&
+            pair.bodyA._mceOCE(pair)
+          pair.bodyB._mceOCE &&
+            pair.bodyB._mceOCE(pair)
+        });
+      });
+    });
+  }
+};
+
+module.exports = MatterCollisionEvents;