Wall::Wall() : Mesh ( Engine::PrimitiveManager->request ( P_Cube ) )
{
_motionState = new btDefaultMotionState;
_shape = Engine::BoxShapeManager->request ( glm::vec3 ( 1, 1, 1 ) );
btRigidBody::btRigidBodyConstructionInfo bodyCI ( 0, _motionState, _shape, btVector3 ( 0, 0, 0 ) );
bodyCI.m_friction = 0.5f;
bodyCI.m_restitution = 0.2f;
_body = new btRigidBody ( bodyCI );
setColor ( glm::vec4 ( 0.3, 0.3, 0.3, 1 ) );
}
World::World(const char* path_to_script) {
script = new Script(path_to_script);
btTriangleIndexVertexArray* tiva;
mesh = new Mesh(script->GetString("mesh"), tiva);
texture = new Texture(script->GetString("texture"));
//btCollisionShape* collisionShape = new btBvhTriangleMeshShape(tiva, false);
btCollisionShape* collisionShape = new btStaticPlaneShape(btVector3(0, 0, 0), 1);
btDefaultMotionState* motionState = new btDefaultMotionState(btTransform(btQuaternion(0, 0, 0, 1), btVector3(0, -1, 0)));
btScalar mass = 0;
btVector3 inertia(0, 0, 0);
collisionShape->calculateLocalInertia(mass, inertia);
btRigidBody::btRigidBodyConstructionInfo bodyCI(mass, motionState, collisionShape, inertia);
body = new btRigidBody(bodyCI);
}
btRigidBody * const Physics::newActor(Actor * const actor)
{
btVector3 vel = actor->initialVel;
Physics::MotionState * actorMotion = new Physics::MotionState( btTransform( actor->orientation, actor->pos ), actor);
motionStates.push_back( actorMotion );
PhysObject const & physObject = actor->physObject; //grabs physical info about the actor
if(physObject.mass != 0)
physObject.shape->calculateLocalInertia(physObject.mass, *(physObject.fallInertia) ); //dynamic object so calculate local inertia
btRigidBody::btRigidBodyConstructionInfo bodyCI(physObject.mass, actorMotion, physObject.shape, *(physObject.fallInertia) ); //TODO this can be shared so stop recreating
btRigidBody * body = new btRigidBody(bodyCI);
dynamicsWorld.addRigidBody(body);
body->setLinearVelocity(btVector3(vel.x(),vel.y(), vel.z() ));
rigidBodies.push_back(body);
return body;
}
void Physics::newActors(ActorList const & newActors)
{
for(ActorList::const_iterator itr = newActors.begin(); itr != newActors.end(); ++itr)
{
btVector3 vel = (*itr)->initialVel;
Physics::MotionState * actorMotion = new Physics::MotionState( btTransform( btQuaternion(0,0,0,1), (*itr)->pos ), *itr);
motionStates.push_back( actorMotion );
PhysObject const & physObject = (*itr)->physObject; //grabs physical info about the actor
if(physObject.mass != 0)
physObject.shape->calculateLocalInertia(physObject.mass, *(physObject.fallInertia) ); //dynamic object so calculate local inertia
btRigidBody::btRigidBodyConstructionInfo bodyCI(physObject.mass, actorMotion, physObject.shape, *(physObject.fallInertia) ); //TODO this can be shared so stop recreating
btRigidBody * body = new btRigidBody(bodyCI);
dynamicsWorld.addRigidBody(body);
body->setLinearVelocity(btVector3(vel.getX(),vel.getY(), vel.getZ()));
rigidBodies.push_back(body);
}
}
