Converting vehicle and building workflow to blender2ogre

src/gamedata/EventTriggerModule.cpp

@@ -81,12 +81,14 @@ ECS::EventTriggerModule::EventTriggerModule(flecs::world &ecs)
 						e.get<EventTrigger>().position,
 						Ogre::Quaternion(0, 0, 0, 1));
 		}
+		/*
 		Ogre::MeshPtr mesh =
 			Ogre::MeshManager::getSingleton().createManual(
 				"trigger", "General");
 		Ogre::Entity *ent =
 			ECS::get<EngineData>().mScnMgr->createEntity(mesh);
 		body.mSceneNode->attachObject(ent);
+*/
 		body.mBody = new btPairCachingGhostObject();
 		body.mBody->getWorldTransform().setOrigin(Ogre::Bullet::convert(
 			body.mSceneNode->_getDerivedPosition()));
@@ -100,8 +102,42 @@ ECS::EventTriggerModule::EventTriggerModule(flecs::world &ecs)
 		if (kinematic)
 			flags |= btCollisionObject::CF_STATIC_OBJECT;
 		body.mBody->setCollisionFlags(flags);
+		/*
 		ECS::get<EngineData>().mWorld->attachCollisionObject(
 			body.mBody, ent, 16, 0x1);
+*/
+		ECS::get<EngineData>().mWorld->getBtWorld()->addCollisionObject(
+			body.mBody, 16, 0x1);
+		struct EntityCollisionListener {
+			const Ogre::MovableObject *entity;
+			Ogre::Bullet::CollisionListener *listener;
+		};
+		body.mBody->setUserPointer(
+			new EntityCollisionListener{ nullptr, nullptr });
+		class CollisionObject {
+		protected:
+			btCollisionObject *mBtBody;
+			btCollisionWorld *mBtWorld;
+
+		public:
+			CollisionObject(btCollisionObject *btBody,
+					btCollisionWorld *btWorld)
+				: mBtBody(btBody)
+				, mBtWorld(btWorld)
+			{
+			}
+			virtual ~CollisionObject()
+			{
+				mBtWorld->removeCollisionObject(mBtBody);
+				delete mBtBody->getCollisionShape();
+				delete mBtBody;
+			}
+		};
+		auto objWrapper = std::make_shared<CollisionObject>(
+			body.mBody,
+			ECS::get<EngineData>().mWorld->getBtWorld());
+		body.mSceneNode->getUserObjectBindings().setUserAny(
+			"BtCollisionObject", objWrapper);
 	});
 	ecs.component<EventTrigger>().on_set(
 		[](flecs::entity e, EventTrigger &ev) {