From 6da26dc4bc46400cd0302b698a3f85a702901665 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Wed, 7 Dec 2011 21:40:41 +0100
Subject: [PATCH] Added Cube primitive.

---
 src/Primitives/CMakeLists.txt |  1 +
 src/Primitives/Cube.cpp       | 56 +++++++++++++++++++++++++++++++++++
 src/Primitives/Cube.h         | 42 ++++++++++++++++++++++++++
 3 files changed, 99 insertions(+)
 create mode 100644 src/Primitives/Cube.cpp
 create mode 100644 src/Primitives/Cube.h

diff --git a/src/Primitives/CMakeLists.txt b/src/Primitives/CMakeLists.txt
index b44294797..f2869e0a7 100644
--- a/src/Primitives/CMakeLists.txt
+++ b/src/Primitives/CMakeLists.txt
@@ -1,4 +1,5 @@
 set(MagnumPrimitives_SRCS
+    Cube.cpp
 )
 
 add_library(MagnumPrimitives STATIC ${MagnumPrimitives_SRCS})
diff --git a/src/Primitives/Cube.cpp b/src/Primitives/Cube.cpp
new file mode 100644
index 000000000..81faad0dc
--- /dev/null
+++ b/src/Primitives/Cube.cpp
@@ -0,0 +1,56 @@
+/*
+    Copyright © 2010, 2011 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#include "Cube.h"
+
+#include "Buffer.h"
+#include "IndexedMesh.h"
+
+namespace Magnum { namespace Primitives {
+
+const Vector4 Cube::_vertices[] = {
+    Vector4(-1.0f, -1.0f, -1.0f),
+    Vector4( 1.0f, -1.0f, -1.0f),
+    Vector4(-1.0f,  1.0f, -1.0f),
+    Vector4( 1.0f,  1.0f, -1.0f),
+    Vector4(-1.0f, -1.0f,  1.0f),
+    Vector4( 1.0f, -1.0f,  1.0f),
+    Vector4(-1.0f,  1.0f,  1.0f),
+    Vector4( 1.0f,  1.0f,  1.0f)
+};
+
+const GLubyte Cube::_indices[] = {
+    0, 1, 2,
+    2, 1, 3,
+    1, 5, 3,
+    3, 5, 7,
+    5, 4, 7,
+    7, 4, 6,
+    4, 0, 6,
+    6, 0, 2,
+    2, 3, 7,
+    2, 7, 6,
+    4, 5, 1,
+    4, 1, 0
+};
+
+void Cube::build(IndexedMesh* mesh, Buffer* vertexBuffer) {
+    prepareMesh(mesh);
+
+    vertexBuffer->setData(sizeof(_vertices), _vertices, Buffer::DrawStatic);
+    mesh->indexBuffer()->setData(sizeof(_indices), _indices, Buffer::DrawStatic);
+}
+
+}}
diff --git a/src/Primitives/Cube.h b/src/Primitives/Cube.h
new file mode 100644
index 000000000..181859895
--- /dev/null
+++ b/src/Primitives/Cube.h
@@ -0,0 +1,42 @@
+#ifndef Magnum_Primitives_Cube_h
+#define Magnum_Primitives_Cube_h
+/*
+    Copyright © 2010, 2011 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+/** @file
+ * @brief Class Magnum::Primitives::Cube
+ */
+
+#include "AbstractPrimitive.h"
+
+namespace Magnum { namespace Primitives {
+
+/** @brief Cube primitive */
+class Cube: public AbstractPrimitive<GLubyte> {
+    public:
+        inline Mesh::Primitive primitive() const { return Mesh::Triangles; }
+        inline size_t vertexCount() const { return 8; }
+        inline size_t indexCount() const { return 36; }
+
+        void build(IndexedMesh* mesh, Buffer* vertexBuffer);
+
+    private:
+        static const Vector4 _vertices[];
+        static const IndexType _indices[];
+};
+
+}}
+
+#endif