small_pos = thing.position[1]
pos_y = calc_pos_in_fov(big_pos[0], small_pos[0], offset[0], size[0])
pos_x = calc_pos_in_fov(big_pos[1], small_pos[1], offset[1], size[1])
small_pos = thing.position[1]
pos_y = calc_pos_in_fov(big_pos[0], small_pos[0], offset[0], size[0])
pos_x = calc_pos_in_fov(big_pos[1], small_pos[1], offset[1], size[1])