# Pong Game in Codeskulptor

import random

import simplegui

WIDTH = 600
HEIGHT = 400
BALL_RADIUS = 20
PAD_WIDTH = 8
PAD_HEIGHT = 80
HALF_PAD_WIDTH = PAD_WIDTH / 2
HALF_PAD_HEIGHT = PAD_HEIGHT / 2
LEFT = False
RIGHT = True
score1 = 0
score2 = 0
paddle1_pos = 0
paddle2_pos = 0
paddle1_vel = 0
paddle2_vel = 0


def spawn_ball(direction):
    global ball_pos, ball_vel  # these are vectors stored as lists
    ball_pos = [WIDTH / 2, HEIGHT / 2]
    if direction == RIGHT:
        ball_vel = [random.randrange(120, 240) / 60, random.randrange(60, 180) / 60]
    elif direction == LEFT:
        ball_vel = [-random.randrange(120, 240) / 60, random.randrange(60, 180) / 60]


def reset():
    global ball_pos, score1, score2
    ball_pos = [WIDTH / 2, HEIGHT / 2]
    score1 = 0
    score2 = 0


def new_game():
    global paddle1_pos, paddle2_pos, paddle1_vel, paddle2_vel
    global score1, score2
    reset()
    spawn_ball(RIGHT)


def draw(canvas):
    global paddle1_pos, paddle2_pos, ball_pos, ball_vel, paddle1_vel, paddle2_vel, BALL_RADIUS
    global score1, score2

    canvas.draw_line([WIDTH / 2, 0], [WIDTH / 2, HEIGHT], 1, "White")
    canvas.draw_line([PAD_WIDTH, 0], [PAD_WIDTH, HEIGHT], 1, "White")
    canvas.draw_line([WIDTH - PAD_WIDTH, 0], [WIDTH - PAD_WIDTH, HEIGHT], 1, "White")

    ball_pos[0] += ball_vel[0]
    ball_pos[1] += ball_vel[1]

    if ball_pos[0] <= BALL_RADIUS + PAD_WIDTH or ball_pos[0] >= WIDTH - BALL_RADIUS - PAD_WIDTH:
        ball_vel[0] = -ball_vel[0]
    elif ball_pos[1] <= BALL_RADIUS + PAD_WIDTH or ball_pos[1] >= HEIGHT - BALL_RADIUS - PAD_WIDTH:
        ball_vel[1] = -ball_vel[1]

    canvas.draw_circle(ball_pos, BALL_RADIUS, 1, "White", "White")

    paddle1_pos += paddle1_vel
    paddle2_pos += paddle2_vel

    if paddle1_pos <= -HEIGHT / 2 + PAD_HEIGHT / 2:
        paddle1_pos = -HEIGHT / 2 + PAD_HEIGHT / 2
    elif paddle1_pos >= HEIGHT / 2 - PAD_HEIGHT / 2:
        paddle1_pos = HEIGHT / 2 - PAD_HEIGHT / 2

    if paddle2_pos <= -HEIGHT / 2 + PAD_HEIGHT / 2:
        paddle2_pos = -HEIGHT / 2 + PAD_HEIGHT / 2
    elif paddle2_pos >= HEIGHT / 2 - PAD_HEIGHT / 2:
        paddle2_pos = HEIGHT / 2 - PAD_HEIGHT / 2

    canvas.draw_line([PAD_WIDTH / 2, paddle1_pos + HEIGHT / 2 - PAD_HEIGHT / 2],
                     [PAD_WIDTH / 2, paddle1_pos + PAD_HEIGHT / 2 + HEIGHT / 2], 10, "White")
    canvas.draw_line([WIDTH - PAD_WIDTH / 2, paddle2_pos + HEIGHT / 2 - PAD_HEIGHT / 2],
                     [WIDTH - PAD_WIDTH / 2, PAD_HEIGHT / 2 + paddle2_pos + HEIGHT / 2], 10, "White")

    if (ball_pos[1] <= (paddle1_pos + HEIGHT / 2 - PAD_HEIGHT / 2) or ball_pos[1] >= (
            paddle1_pos + PAD_HEIGHT / 2 + HEIGHT / 2)) and ball_pos[0] == (PAD_WIDTH + BALL_RADIUS):
        score2 += 1
    else:
        pass

    if (ball_pos[1] <= (paddle2_pos + HEIGHT / 2 - PAD_HEIGHT / 2) or ball_pos[1] >= (
            paddle2_pos + PAD_HEIGHT / 2 + HEIGHT / 2)) and ball_pos[0] == (WIDTH - PAD_WIDTH - BALL_RADIUS):
        score1 += 1
    else:
        pass

    canvas.draw_text(str(score1), (250, 30), 40, "White")
    canvas.draw_text(str(score2), (330, 30), 40, "White")


def keydown(key):
    global paddle1_vel, paddle2_vel
    if key == simplegui.KEY_MAP["down"]:
        paddle1_vel = 2
    elif key == simplegui.KEY_MAP["up"]:
        paddle1_vel = -2

    if key == simplegui.KEY_MAP["w"]:
        paddle2_vel = -2
    elif key == simplegui.KEY_MAP["s"]:
        paddle2_vel = 2


def keyup(key):
    global paddle1_vel, paddle2_vel
    if key == simplegui.KEY_MAP["down"] or key == simplegui.KEY_MAP["up"]:
        paddle1_vel = 0
    if key == simplegui.KEY_MAP["w"] or key == simplegui.KEY_MAP["s"]:
        paddle2_vel = 0


frame = simplegui.create_frame("Pong", WIDTH, HEIGHT)
frame.set_draw_handler(draw)
frame.set_keydown_handler(keydown)
frame.set_keyup_handler(keyup)
frame.add_button("Restart", reset)

new_game()
print()
frame.start()