bird

Original Python code

import random

bird_x = 62
bird_width = 30
bird_height = 25

playing_area_width = 300
playing_area_height = 388

pipe_space_height = 100
pipe_width = 54

def new_pipe_space_y():
    pipe_space_y_min = 54
    pipe_space_y = random.randint(
        pipe_space_y_min,
        playing_area_height - pipe_space_height - pipe_space_y_min
    )

    return pipe_space_y

def reset():
    global bird_y
    global bird_y_speed
    global pipe_1_x
    global pipe_1_space_y
    global pipe_2_x
    global pipe_2_space_y
    global score
    global upcoming_pipe

    bird_y = 200
    bird_y_speed = 0

    pipe_1_x = playing_area_width
    pipe_1_space_y = new_pipe_space_y()

    pipe_2_x = playing_area_width + ((playing_area_width + pipe_width) / 2)
    pipe_2_space_y = new_pipe_space_y()

    score = 0

    upcoming_pipe = 1

reset()

def update(dt):
    global bird_y
    global bird_y_speed
    global pipe_1_x
    global pipe_2_x
    global pipe_1_space_y
    global pipe_2_space_y

    bird_y_speed += 516 * dt
    bird_y += bird_y_speed * dt

    def move_pipe(pipe_x, pipe_space_y):
        pipe_x -= 60 * dt

        if (pipe_x + pipe_width) < 0:
            pipe_x = playing_area_width
            pipe_space_y = new_pipe_space_y()

        return pipe_x, pipe_space_y

    pipe_1_x, pipe_1_space_y = move_pipe(pipe_1_x, pipe_1_space_y)
    pipe_2_x, pipe_2_space_y = move_pipe(pipe_2_x, pipe_2_space_y)

    def is_bird_colliding_with_pipe(pipe_x, pipe_space_y):
        return (
            # Left edge of bird is to the left of the right edge of pipe
            bird_x < (pipe_x + pipe_width)
            and
            # Right edge of bird is to the right of the left edge of pipe
            (bird_x + bird_width) > pipe_x
            and (
                # Top edge of bird is above the bottom edge of first pipe segment
                bird_y < pipe_space_y
                or
                # Bottom edge of bird is below the top edge of second pipe segment
                (bird_y + bird_height) > (pipe_space_y + pipe_space_height)
            )
        )

    if (
        is_bird_colliding_with_pipe(pipe_1_x, pipe_1_space_y)
        or is_bird_colliding_with_pipe(pipe_2_x, pipe_2_space_y)
        or bird_y > playing_area_height
    ):
        reset()

    def update_score_and_closest_pipe(this_pipe, pipe_x, other_pipe):
        global score
        global upcoming_pipe

        if (
            upcoming_pipe == this_pipe
            and bird_x > (pipe_x + pipe_width)
        ):
            score += 1
            upcoming_pipe = other_pipe

    update_score_and_closest_pipe(1, pipe_1_x, 2)
    update_score_and_closest_pipe(2, pipe_2_x, 1)

def on_key_down():
    global bird_y_speed

    if bird_y > 0:
        bird_y_speed = -165

def draw():
    screen.fill((0, 0, 0))

    screen.draw.filled_rect(
        Rect(
            (0, 0),
            (playing_area_width, playing_area_height)
        ),
        color=(35, 92, 118)
    )

    screen.draw.filled_rect(
        Rect(
            (bird_x, bird_y),
            (bird_width, bird_height)
        ),
        color=(224, 214, 68)
    )

    def draw_pipe(pipe_x, pipe_space_y):
        screen.draw.filled_rect(
            Rect(
                (pipe_x, 0),
                (pipe_width, pipe_space_y)
            ),
            color=(94, 201, 72)
        )

        screen.draw.filled_rect(
            Rect(
                (pipe_x, pipe_space_y + pipe_space_height),
                (pipe_width, playing_area_height - pipe_space_y - pipe_space_height)
            ),
            color=(94, 201, 72)
        )

    draw_pipe(pipe_1_x, pipe_1_space_y)
    draw_pipe(pipe_2_x, pipe_2_space_y)

    screen.draw.text(str(score), (15, 15))

WIDTH = 300
HEIGHT = 388