Code:

// Create shape in my Physics Manager class// ...btCollisionShape aBall = new btSphereShape(1.5f);createBall("ball", Ogre::Vector3(1.5f, 1.5f, 1.5f), Ogre::Vector3(0,1.5f, -1*(arena_measures.z/2)+10), 200.0, aBall); // ...void CriterionBowling::createBall(const char *name, const Ogre::Vector3 &size, const Ogre::Vector3 &pos, float mass, btCollisionShape &shape){// Create ogre scene nodeOgre::SceneNode* node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode(name);     // Create our rigidboy using our Bullet Wrapper    btRigidBody &body = mPhysics.createBody(btTransform(btQuaternion::getIdentity(), btVector3(pos.x, pos.y, pos.z)), mass, shape);// Set some physical properties//...// Add it to our bowling simulationmBall = new Ball(*node1,body);        // Get its mesh     Ogre::Entity *entity = mSceneMgr->createEntity(name, "sphere.mesh");    // Give it a texture    entity->setMaterialName("BowlingBall");    node1->attachObject(entity);}

Code:

void Ball::throw(const Vector3 force){// Lock the ball --> player can't control it anymorelocked = true;this->mRigidBody.activate(true);// Apply force to the rigidbodythis->mRigidBody.applyCentralImpulse(btVector3(force.x,force.y,force.z));}void Ball::update(){// Get Bullet transformation matrixbtTransform transform; // Get the transformation of this rigidbody in the transformation matrixmRigidBody.getMotionState()->getWorldTransform(transform); // Obtain the rotation and update the graphical representationbtQuaternion rotation(transform.getRotation());node.setOrientation(rotation.getW(), rotation.getX(), rotation.getY(), rotation.getZ()); // Update the positionconst btVector3 &origin = transform.getOrigin();node.setPosition(origin.getX(), origin.getY(), origin.getZ());}