starter.py

import pygame

pygame.init()
screen = pygame.display.set_mode((1200,700))
pygame.display.set_caption("Kmeans visualization")
running = True
clock = pygame.time.Clock()
BACKGROUND = (214, 214, 214)
BLACK = (0, 0, 0)
BACKGROUND_PANEL = (249, 255, 230)
WHITE = (255, 255 ,255)

font = pygame.font.SysFont('sans', 40)
text_plus = font.render('+', True, WHITE)


while running:
	clock.tick(60)
	screen.fill(BACKGROUND)

	# Draw interface
	# Draw panel

	pygame.draw.rect(screen, BLACK, (50,50,700,500))
	pygame.draw.rect(screen, BACKGROUND_PANEL, (55,55,690,490))

	# K button +
	pygame.draw.rect(screen, BLACK, (850,50,50,50))
	screen.blit(text_plus, (860,50,50,50))

	# End draw interface

	mouse_x, mouse_y = pygame.mouse.get_pos()

	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			running = False
		if event.type == pygame.MOUSEBUTTONDOWN:
			if 850 < mouse_x < 900 and 50 < mouse_y < 100 :
				print("Press +")

	pygame.display.flip()

pygame.quit()