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Sdk/World: Add const getters for systems

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This commit is contained in:
Jérôme Leclercq
2018-04-09 12:34:37 +02:00
parent ae2fd0069a
commit e99d34f195
3 changed files with 37 additions and 3 deletions
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2
SDK/include/NDK/World.hpp
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@@ -54,7 +54,9 @@ namespace Ndk
inline const EntityList& GetEntities() const;
inline const ProfilerData& GetProfilerData() const;
inline BaseSystem& GetSystem(SystemIndex index);
inline const BaseSystem& GetSystem(SystemIndex index) const;
template<typename SystemType> SystemType& GetSystem();
template<typename SystemType> const SystemType& GetSystem() const;
inline bool HasSystem(SystemIndex index) const;
template<typename SystemType> bool HasSystem() const;

37
SDK/include/NDK/World.inl
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@@ -177,9 +177,8 @@ namespace Ndk
*
* \param index Index of the system
*
* \remark Produces a NazaraAssert if system is not available in this world
* \remark The world must have the system before calling this function
*/
inline BaseSystem& World::GetSystem(SystemIndex index)
{
NazaraAssert(HasSystem(index), "This system is not part of the world");
@@ -190,13 +189,30 @@ namespace Ndk
return *system;
}
/*!
* \brief Gets a system in the world by index
* \return A const reference to the system
*
* \param index Index of the system
*
* \remark The world must have the system before calling this function
*/
inline const BaseSystem& World::GetSystem(SystemIndex index) const
{
NazaraAssert(HasSystem(index), "This system is not part of the world");
const BaseSystem* system = m_systems[index].get();
NazaraAssert(system, "Invalid system pointer");
return *system;
}
/*!
* \brief Gets a system in the world by type
* \return A reference to the system
*
* \remark Produces a NazaraAssert if system is not available in this world
*/
template<typename SystemType>
SystemType& World::GetSystem()
{
@@ -206,6 +222,21 @@ namespace Ndk
return static_cast<SystemType&>(GetSystem(index));
}
/*!
* \brief Gets a system in the world by type
* \return A const reference to the system
*
* \remark Produces a NazaraAssert if system is not available in this world
*/
template<typename SystemType>
const SystemType& World::GetSystem() const
{
static_assert(std::is_base_of<BaseSystem, SystemType>::value, "SystemType is not a system");
SystemIndex index = GetSystemIndex<SystemType>();
return static_cast<const SystemType&>(GetSystem(index));
}
/*!
* \brief Checks whether or not a system is present in the world by index
* \return true If it is the case