From e689f6f09f7fb3a19f8a5a1686e8799f716c4622 Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Sun, 9 Jun 2013 16:15:13 +0200
Subject: [PATCH] Added Mesh::Recenter()

Former-commit-id: 07ef8b3296b835e207bfa904af29546f724e6dc3
---
 include/Nazara/Utility/Mesh.hpp |  2 ++
 src/Nazara/Utility/Mesh.cpp     | 41 +++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/include/Nazara/Utility/Mesh.hpp b/include/Nazara/Utility/Mesh.hpp
index 6c51cb13c..311bfc11a 100644
--- a/include/Nazara/Utility/Mesh.hpp
+++ b/include/Nazara/Utility/Mesh.hpp
@@ -99,6 +99,8 @@ class NAZARA_API NzMesh : public NzResource, NzResourceListener
 		bool LoadFromMemory(const void* data, std::size_t size, const NzMeshParams& params = NzMeshParams());
 		bool LoadFromStream(NzInputStream& stream, const NzMeshParams& params = NzMeshParams());
 
+		void Recenter();
+
 		void RemoveSubMesh(const NzString& identifier);
 		void RemoveSubMesh(unsigned int index);
 
diff --git a/src/Nazara/Utility/Mesh.cpp b/src/Nazara/Utility/Mesh.cpp
index bbc06881f..f4cc6df3d 100644
--- a/src/Nazara/Utility/Mesh.cpp
+++ b/src/Nazara/Utility/Mesh.cpp
@@ -758,6 +758,47 @@ bool NzMesh::LoadFromStream(NzInputStream& stream, const NzMeshParams& params)
 	return NzMeshLoader::LoadFromStream(this, stream, params);
 }
 
+void NzMesh::Recenter()
+{
+	#if NAZARA_UTILITY_SAFE
+	if (!m_impl)
+	{
+		NazaraError("Mesh not created");
+		return;
+	}
+
+	if (m_impl->animationType != nzAnimationType_Static)
+	{
+		NazaraError("Mesh must be static");
+		return;
+	}
+	#endif
+
+	NzVector3f center = GetAABB().GetCenter();
+
+	for (NzSubMesh* subMesh : m_impl->subMeshes)
+	{
+		NzStaticMesh* staticMesh = static_cast<NzStaticMesh*>(subMesh);
+
+		NzBufferMapper<NzVertexBuffer> mapper(staticMesh->GetVertexBuffer(), nzBufferAccess_ReadWrite);
+		NzMeshVertex* vertices = static_cast<NzMeshVertex*>(mapper.GetPointer());
+
+		unsigned int vertexCount = staticMesh->GetVertexCount();
+		for (unsigned int i = 0; i < vertexCount; ++i)
+		{
+			vertices->position -= center;
+			vertices++;
+		}
+
+		NzBoxf aabb = staticMesh->GetAABB();
+		aabb.Translate(-center);
+
+		staticMesh->SetAABB(aabb);
+	}
+
+	m_impl->aabbUpdated = false; // Notre AABB a changée
+}
+
 void NzMesh::RemoveSubMesh(const NzString& identifier)
 {
 	#if NAZARA_UTILITY_SAFE