gui_for_pygame/example/button_paint.py

import pygame
import sys
import GUI

from random import randint

pygame.init()

screen = pygame.display.set_mode((300, 300))

widgets = []

for j in range(30):
	for i in range(30):
		widgets.append(GUI.Button(screen, text = '', width = 10, height = 10, x = 10*j, y = 10*i))
widgets.append(GUI.Button(screen, text = '', width = 10, height = 10, x = 999, y = 999))
while True:

	for value in range(len(widgets)):
		widgets[value].update()

	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			sys.exit()

		elif event.type == pygame.MOUSEBUTTONDOWN:
			for value in range(900):
				if widgets[value].active(key = event.button):
					widgets[value].set_bg_color((randint(0, 255), randint(0, 255), randint(0, 255)))


	pygame.display.update()