how to remove draw objects from pygame window?

Question

I am creating a game using pygame and python. I have drawn a rectangle in the window which acts as a button. But i need to know how to remove the button once it is clicked. Heres my code:

import pygame, sys
from pygame.locals import *
x = 0
y = 0

#Basic stuff:
pygame.init()
screen=pygame.display.set_mode((640,360),0,32)
pygame.display.set_caption("Some random Title")


while True:
    evc = pygame.event.get()
    for event in evc:
        if event.type == pygame.QUIT:
        pygame.quit()
        sys.exit()
x,y = pygame.mouse.get_pos()
screen.lock()
#draw button:
my_rect = pygame.draw.rect(screen,(205,201,201),Rect((245,40),(130,80)))
bf1 = pygame.font.SysFont("monospace", 15)
bl = bf1.render("Play!!!", 1, (255, 255, 255))
screen.unlock()
#Check mouse click!!!
if my_rect.collidepoint(x,y):
   for event in evc:
       if event.type ==pygame.MOUSEBUTTONUP:
           screen.fill((255,255,255))



screen.blit(bl, (280, 70))
pygame.display.flip
pygame.display.update()

So yea i hope you can help me with this.

Answer 1

You would need to draw everything to the screen again except for the parts you don't want in any more.

pygame.init()
screen = pygame.display.set_mode((700, 700))
# set background or fill
background = pygame.image.load("/background.png")
screen.blit(background, (0, 0))    

my_btn = pygame.image.load("/button.png")
btn_rect = my_btn.get_rect()
screen.blit(my_btn, (0, 0))

for evt in pygame.event.get():

    if evt.type == pygame.MOUSEBUTTONDOWN:
        pos = pygame.mouse.get_pos()
        if btn_rect.collidepoint(pos):
            # do stuff
            # apply your background fill or image
            screen.blit(background, (0, 0))
            for element in elements_you_want_on_screen:
                screen.blit(element, (location))
    pygame.display.flip()

If you don't have an array of surfaces to blit:

pygame.init()
screen = pygame.display.set_mode((700, 700))
# set background or fill
background = pygame.image.load("/background.png")
screen.blit(background, (0, 0))    

my_btn = pygame.image.load("/button.png")
btn_rect = my_btn.get_rect()
screen.blit(my_btn, (0, 0))

for evt in pygame.event.get():

    if evt.type == pygame.MOUSEBUTTONDOWN:
        pos = pygame.mouse.get_pos()
        if btn_rect.collidepoint(pos):
            # do stuff
            # apply your background fill or image
            screen.blit(background, (0, 0))
            screen.blit(your_image, (location))
            # ...and others if you have them
    pygame.display.flip()

Answer 2

i think you should just create a blank screen for every frame and draw everything over again...

def draw(self):
self.screen.fill(self.color) #clear screen
self.draw(self.screen) # draw updated screen

if you have different classes in your code try adding that part in too:

self.#class#.draw(self.screen)

Answer 3

I just found out but you can also just set the width and height of your rectangle to 0, and draw it again. In my opinion, is that way easier.