PhysicsComponent

#pragma once

#include "btBulletDynamicsCommon.h"
#include "components/TransformComponent.hpp"
#include "physics/MyMotionState.hpp"

namespace sw {

    struct PhysicsComponent : public ex::Component<PhysicsComponent> {

        PhysicsComponent() { }

        ~PhysicsComponent() {
            delete motionState_;
            delete shape_;
            delete body_;
        }

        PhysicsComponent(ex::Entity entity, btCollisionShape *collisionShape,
                         btScalar mass = 0.0f, short group = sw::COL_DYNAMIC, short mask = sw::COL_STATIC)
                : group_(group), mask_(mask) {

            motionState_ = new MyMotionState(entity);
            shape_ = collisionShape;

            //shape_ = new btBoxShape(btVector3(2.0f, 1.0f, 1.0f));

            // calculate the local inertia
            btVector3 localInertia(0, 0, 0);

            // objects of infinite mass can't
            // move or rotate



            if (mass != 0.0f)
                shape_->calculateLocalInertia(mass, localInertia);


            btRigidBody::btRigidBodyConstructionInfo bodyConstructionInfo(mass, motionState_, shape_, localInertia);

            body_ = new btRigidBody(bodyConstructionInfo);


        }


        short group_;
        short mask_;

        MyMotionState *motionState_;

        btCollisionShape *shape_;

        btRigidBody *body_;


    };


}