cdef struct Vertex:
    int x, y, z
    float u, v
    unsigned char r, g, b, a


cdef struct VertexFloat:
    float x, y, z
    float u, v
    unsigned char r, g, b, a


cdef class Renderer:
    cdef public texture_manager
    cdef Vertex *vertex_buffer
    cdef object texture_key
    cdef unsigned short blendfunc, nb_vertices
    cdef VertexFloat *background_vertex_buffer

    cpdef render_elements(self, elements)
    cpdef render_background(self)
    cpdef prerender_background(self, background)