from tkinter import *
bomb = 100
best_score = 0
score = 0
press_return = True
def start(event):
    global press_return
    global bomb
    global score
    if not press_return:
        pass
    else:
        bomb = 100
        score = 0
        label.config(text='')
        update_bomb()
        update_score()
        update_display()
        press_return = False
def update_display():
    global bomb
    global score
    if bomb > 50:
        bomb_label.config(image=normal_photo)
    elif 0 < bomb <= 50:
        bomb_label.config(image=no_photo)
    else:
         bomb_label.config(image=bang_photo)
    fuse_label.config(text='Fuse: ' + str(bomb))
    score_label.config(text='Score: ' +
                    str(score))
    fuse_label.after(100, update_display)
def update_bomb():
     global bomb
     bomb -= 5
     if is_alive():
        fuse_label.after(400, update_bomb)
            
def update_score():
    global score
    score += 1
    if is_alive():
         score_label.after(3000, update_score) 
def click():
     global bomb
     if is_alive():
        bomb += 1
def is_alive():
     global bomb
     global press_return
     if bomb <= 0:
         label.config(text='Bang! Bang! Bang!')
         press_return = True
         return False
     else:
         return True
if best_score < score:
    best_score = score
           
root = Tk()
root.title('Bang Bang')
root.geometry('500x550')
best_score_label = Label(root, text='Best Score: '+ str(best_score), font=('Comic Sans MS', 14))
best_score_label.pack()
label = Label(root, text='Press [enter] to start the game', font=('Comic Sans MS', 12))
label.pack()
fuse_label = Label(root, text='Fuse: ' +
str(bomb), font=('Comic Sans MS', 14))
fuse_label.pack()
score_label = Label(root, text='Score: ' +
str(score), font=('Comic Sans MS', 14))
score_label.pack()
no_photo = PhotoImage(file='img/bomb_no.gif')
normal_photo = PhotoImage(file='img/bomb_normal.gif')
bang_photo = PhotoImage(file='img/pow.gif')
bomb_label = Label(root, image=normal_photo)
bomb_label.pack()
click_button = Button(root, text='Click me',
bg='#000000', fg='#ffffff', width=15,
font=('Comic Sans MS', 14),command=click)
click_button.pack()
root.bind('<Return>', start)
root.mainloop()