NazaraEngine/SDK/src/NDK/Components/PhysicsComponent2D.cpp

93 lines
2.5 KiB
C++

// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <Nazara/Physics2D/RigidBody2D.hpp>
#include <NDK/Algorithm.hpp>
#include <NDK/World.hpp>
#include <NDK/Components/CollisionComponent2D.hpp>
#include <NDK/Components/NodeComponent.hpp>
#include <NDK/Systems/PhysicsSystem3D.hpp>
namespace Ndk
{
/*!
* \ingroup NDK
* \class Ndk::PhysicsComponent2D
* \brief NDK class that represents a physics point, without any collision
*/
/*!
* \brief Operation to perform when component is attached to an entity
*
* \remark Produces a NazaraAssert if the world does not have a physics system
*/
void PhysicsComponent2D::OnAttached()
{
World* entityWorld = m_entity->GetWorld();
NazaraAssert(entityWorld->HasSystem<PhysicsSystem2D>(), "World must have a 2D physics system");
Nz::PhysWorld2D& world = entityWorld->GetSystem<PhysicsSystem2D>().GetWorld();
Nz::Collider2DRef geom;
if (m_entity->HasComponent<CollisionComponent2D>())
geom = m_entity->GetComponent<CollisionComponent2D>().GetGeom();
Nz::Matrix4f matrix;
if (m_entity->HasComponent<NodeComponent>())
matrix = m_entity->GetComponent<NodeComponent>().GetTransformMatrix();
else
matrix.MakeIdentity();
m_object.reset(new Nz::RigidBody2D(&world, 1.f, geom));
m_object->SetPosition(Nz::Vector2f(matrix.GetTranslation()));
}
/*!
* \brief Operation to perform when component is attached to this component
*
* \param component Component being attached
*
* \remark Produces a NazaraAssert if physical object is invalid
*/
void PhysicsComponent2D::OnComponentAttached(BaseComponent& component)
{
if (IsComponent<CollisionComponent2D>(component))
{
NazaraAssert(m_object, "Invalid object");
m_object->SetGeom(static_cast<CollisionComponent2D&>(component).GetGeom());
}
}
/*!
* \brief Operation to perform when component is detached from this component
*
* \param component Component being detached
*
* \remark Produces a NazaraAssert if physical object is invalid
*/
void PhysicsComponent2D::OnComponentDetached(BaseComponent& component)
{
if (IsComponent<CollisionComponent2D>(component))
{
NazaraAssert(m_object, "Invalid object");
m_object->SetGeom(Nz::NullCollider2D::New());
}
}
/*!
* \brief Operation to perform when component is detached from an entity
*/
void PhysicsComponent2D::OnDetached()
{
m_object.reset();
}
ComponentIndex PhysicsComponent2D::componentIndex;
}