import pygame
import time

pygame.init()
pygame.font.init()

font = pygame.font.SysFont('Arial', 40, bold=True)

screen = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
running = True

start_button = pygame.image.load('start.png')
pause_button = pygame.image.load('pause.png')
stop_button = pygame.image.load('stop.png')

subsurface = pygame.Surface((300, 300))
subsurface.fill("white")
start_button_blit = subsurface.blit(start_button, (50, 225))
pause_button_blit = subsurface.blit(pause_button, (125, 225))
stop_button_blit = subsurface.blit(stop_button, (200, 225))

gecen_zaman = 0

basladi = False

while running:

    screen.blit(subsurface, (0,0))

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

        elif event.type == pygame.MOUSEBUTTONDOWN:
            if start_button_blit.collidepoint(pygame.mouse.get_pos()):
                if not basladi:
                    print("Başlat düğmesi")
                    basladi = True
                    onceki_zaman = time.time()

            elif  pause_button_blit.collidepoint(pygame.mouse.get_pos()):
                print("Puase düğmesi")
                basladi = False
                
                
            elif stop_button_blit.collidepoint(pygame.mouse.get_pos()):
                print("Stop düğmesi")
                basladi = False
                gecen_zaman = 0

    if basladi:
        gecen_zaman += time.time() - onceki_zaman
        onceki_zaman = time.time()

    m, s = divmod(gecen_zaman, 60)
    h, m = divmod(m, 60)

    time_str = '{0:02d}:{1:02d}:{2:04.1f}'.format(int(h), int(m), s)

    time_str_surface = font.render(time_str, True, (255, 0, 0))

    screen.blit(time_str_surface, (50,70))

    pygame.display.flip()

    clock.tick(60)

pygame.quit()