From 6ab812b576c848580c215c0bd6e337df5a4fec07 Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Sun, 14 Aug 2016 18:01:23 +0200
Subject: [PATCH] SDK/Entity: Add constant component getter

Former-commit-id: 1c7aa68fbf0c8e0bdfa8152632b2e9cdaa0f748e [formerly 676e34f3738632aa727470213928ad2c91368d9b] [formerly c3f162cad3a9c65da2bcaf037d7b55ea70ee5b53 [formerly 674d9d5ecaa0d561d002e470af4c0cf7dcf7e501]]
Former-commit-id: bf5a07802efe57d0f6547a2c4b5ab8344e4515e9 [formerly 843780a0eaba37b46e59f9d81e56c3854a86ebde]
Former-commit-id: 6849fc8cfe8d689f67d452d13fe317ea65ba2fec
---
 SDK/include/NDK/Entity.hpp |  2 ++
 SDK/include/NDK/Entity.inl | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/SDK/include/NDK/Entity.hpp b/SDK/include/NDK/Entity.hpp
index 33661eb50..5aeeb8226 100644
--- a/SDK/include/NDK/Entity.hpp
+++ b/SDK/include/NDK/Entity.hpp
@@ -40,6 +40,8 @@ namespace Ndk
 
 			inline BaseComponent& GetComponent(ComponentIndex index);
 			template<typename ComponentType> ComponentType& GetComponent();
+			inline const BaseComponent& GetComponent(ComponentIndex index) const;
+			template<typename ComponentType> const ComponentType& GetComponent() const;
 			inline const Nz::Bitset<>& GetComponentBits() const;
 			inline EntityId GetId() const;
 			inline const Nz::Bitset<>& GetSystemBits() const;
diff --git a/SDK/include/NDK/Entity.inl b/SDK/include/NDK/Entity.inl
index c7937b786..a03130b0d 100644
--- a/SDK/include/NDK/Entity.inl
+++ b/SDK/include/NDK/Entity.inl
@@ -2,6 +2,7 @@
 // This file is part of the "Nazara Development Kit"
 // For conditions of distribution and use, see copyright notice in Prerequesites.hpp
 
+#include <NDK/Entity.hpp>
 #include <Nazara/Core/Error.hpp>
 #include <Nazara/Core/StringStream.hpp>
 #include <algorithm>
@@ -50,6 +51,27 @@ namespace Ndk
 		return static_cast<ComponentType&>(GetComponent(index));
 	}
 
+	inline const BaseComponent& Entity::GetComponent(ComponentIndex index) const
+	{
+		///DOC: Le component doit être présent
+		NazaraAssert(HasComponent(index), "This component is not part of the entity");
+
+		BaseComponent* component = m_components[index].get();
+		NazaraAssert(component, "Invalid component pointer");
+
+		return *component;
+	}
+
+	template<typename ComponentType>
+	const ComponentType& Entity::GetComponent() const
+	{
+		///DOC: Le component doit être présent
+		static_assert(std::is_base_of<BaseComponent, ComponentType>::value, "ComponentType is not a component");
+
+		ComponentIndex index = GetComponentIndex<ComponentType>();
+		return static_cast<ComponentType&>(GetComponent(index));
+	}
+
 	inline const Nz::Bitset<>& Entity::GetComponentBits() const
 	{
 		return m_componentBits;