Chunks meshes indexing

src/graphics/Mesh.h

@@ -11,13 +11,17 @@ struct vattr {
 class Mesh {
 	unsigned int vao;
 	unsigned int vbo;
+	unsigned int ibo;
 	size_t vertices;
+	size_t indices;
 	size_t vertexSize;
 public:
-	Mesh(const float* buffer, size_t vertices, const vattr* attrs);
+	Mesh(const float* vertexBuffer, size_t vertices, const int* indexBuffer, size_t indices, const vattr* attrs);
+	Mesh(const float* vertexBuffer, size_t vertices, const vattr* attrs) :
+		Mesh(vertexBuffer, vertices, nullptr, 0, attrs) {};
 	~Mesh();
 
-	void reload(const float* buffer, size_t vertices);
+	void reload(const float* vertexBuffer, size_t vertices, const int* indexBuffer = nullptr, size_t indices = 0);
 	void draw(unsigned int primitive);
 	void draw();