import pygame
# init Spieldaten
pygame.init()
myfont = pygame.font.SysFont('Comic Sans MS', 40)
global running
speed = 0


def init():
    global width, height, size, zaehler
    global speed_x, speed_y, image_g_o
    zaehler = 0
    speed_x = -1
    speed_y = -1
    global black, red
    global image, image_rect
    width = 1080
    height = 720
    size = (width, height)
    black = (0, 0, 0)
    red = (255, 0, 0)
    image = pygame.image.load("ohm.png")
    image_g_o = pygame.image.load("color-me-happy-game-over.jpg")
    image_rect = image.get_rect()
    image_rect.x = 500
    image_rect.y = 350

def initRectangle():
    global rect, width_player, height_player, x, y
    x = 0
    y = 650
    width_player = 300
    height_player = 40
    rect = pygame.Rect(x, y, width_player, height_player)

def input():
    global speed
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            return False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                speed = -1
            if event.key == pygame.K_RIGHT:
                speed = 1
        if event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT:
                speed = 0
            if event.key == pygame.K_RIGHT:
                speed = 0
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                return False
    return True

def reflect_x():
    global speed_x
    speed_x *= -1


def reflect_y():
    global speed_y
    speed_y *= -1

def show_game_over():
    global image_g_o, screen, running
    screen.blit(image_g_o, (300, 100))
    textsurface = myfont.render('PONG', True, (0, 50, 200))
    screen.blit(textsurface, (500,80))
    textsurface = myfont.render('Press Space to restart - Escape to exit', True, (0, 50, 200))
    screen.blit(textsurface, (200, 500))
    pygame.display.flip()
    waiting = True
    while waiting:
        for event in pygame.event.get():
            if (event.type == pygame.QUIT):
                print('quit')
                waiting = False
                pygame.quit()
                running = False
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    print('space')
                    waiting = False
                    init_game()
                if event.key == pygame.K_ESCAPE:
                    running = False
                    pygame.quit()

def update():
    global x, y, width_player, height_player, speed, width, zaehler, height

    if (speed == -1 and rect.x <= 0) or (speed == 1 and rect.x >= (width - width_player)):
        pass
    else :
        rect.x = rect.x + speed

    if (zaehler%2 == 0) and (image_rect.x <= 0 or image_rect.x >= width) :
        reflect_x()
    elif (zaehler%2 == 0) and image_rect.y <= 0 :
        reflect_y()
    if (zaehler%2 == 0) and (image_rect.y == (y - height_player) and image_rect.x >= rect.x and image_rect.x <= (rect.x + width_player)) :
        reflect_y()

    zaehler = zaehler + 1

    if (zaehler%2 == 0):
        image_rect.x += speed_x
        image_rect.y += speed_y
    else:
        pass
    if image_rect.y >= height and (zaehler%2 == 0):
        show_game_over()

def draw():
    screen.fill(black)
    screen.blit(image, image_rect)
    pygame.draw.rect(screen, red, rect)
    pygame.display.flip()

def init_game():
    global screen
    init()
    initRectangle()
    screen = pygame.display.set_mode(size)

init_game()
running = True
game_over = False

while running:
    if game_over:
        show_game_over()
    running = input()
    update()
    draw()