Utility/MeshParam: Use constref instead of pointer

ChangeLog.md

@@ -2,6 +2,7 @@
 
 Nazara Engine:
 - VertexMapper:GetComponentPtr no longer throw an error if component is disabled or incompatible with template type, instead a null pointer is returned.
+- MeshParams now hold a ConstRef to the VertexDeclaration (preventing it to be freed before usage)
 
 # 0.4:
 

include/Nazara/Utility/Mesh.hpp

@@ -48,7 +48,7 @@ namespace Nz
 		 * If the declaration has a Vector3f Normals component enabled, Normals are generated.
 		 * If the declaration has a Vector3f Tangents component enabled, Tangents are generated.
 		 */
-		VertexDeclaration* vertexDeclaration = VertexDeclaration::Get(VertexLayout_XYZ_Normal_UV_Tangent);
+		VertexDeclarationConstRef vertexDeclaration = VertexDeclaration::Get(VertexLayout_XYZ_Normal_UV_Tangent);
 
 		bool IsValid() const;
 	};

src/Nazara/Utility/Mesh.cpp

@@ -41,7 +41,7 @@ namespace Nz
 			return false;
 		}
 
-		if (vertexDeclaration == nullptr)
+		if (!vertexDeclaration)
 		{
 			NazaraError("The vertex declaration can't be null");
 			return false;