صورة ثلاثية الأبعاد في الثعبان مع أداء عادي (تقريبًا)

         # iterating alpha
        alpha = player.view - player.fov / 2
        mapFB.drawRectangle(player.y - 1, player.x - 1, player.y + 1, player.x + 1, Color(255, 0, 0))
        rayNum = 0
        while alpha < player.fov / 2 + player.view:
            # iterating distance
            dist = 0
            x = player.x
            y = player.y
            while 0 < x < mapFB.w - 1 and 0 < y < mapFB.h - 1:
                  ...

def block_cross(i, j, k, y_0, alpha, player):
    # cell coordinates
    x_cell = i * H
    y_cell = j * H
    # find collision points
    collisions = []

    if k != 0:
        x = (y_cell - y_0) / k
        y = y_cell
        if x_cell <= x <= x_cell + H and (x - player.x) / cos(alpha) < 0:
            collisions.append((x, y))

    if k != 0:
        x = (y_cell + H - y_0) / k
        y = y_cell + H
        if x_cell <= x <= x_cell + H and (x - player.x) / cos(alpha) < 0:
            collisions.append((x, y))

    x = x_cell
    y = y_0 + x * k
    if y_cell <= y <= y_cell + H and (x - player.x) / cos(alpha) < 0:
        collisions.append((x, y))

    x = x_cell + H
    y = y_0 + (x) * k
    if y_cell <= y <= y_cell + H and (x - player.x) / cos(alpha) < 0:
        collisions.append((x, y))

    # select the closest collision for the block
    dist = 1000 * H
    x = None
    y = None
    for collision in collisions:
        tmp = sqrt((collision[0] - player.x) ** 2 + (collision[1] - player.y) ** 2)
        if tmp < dist:
            dist = tmp;
            x = collision[0]
            y = collision[1]

    return x, y, dist

 cpdef int fun(int num, float val):
    cdef int result
    # do some stuff
    return result

 cpdef int fun(int num, float val):
    cdef int result
    # do some stuff
    return result

 cdef int fun2(int *arr, float* arr_2):
    cdef int arr_3[10][10]
    # do some stuff
    return result