python: Rewrite the main entrypoint in Rust This lets us progressively replace Python modules with Rust ones. Currently missing features include: - Saving replays - Networking code for cooperative mode - Reading a configuration file for options - Maybe more. But the base game is working, so yay!

from pytouhou.game.element cimport Element
from pytouhou.game.sprite cimport Sprite

cdef class Orb(Element):
    cdef public double offset_x, offset_y
    cdef Element player
    cdef object fire

    cpdef update(self)