Pygame Rectangle Collision Example

import pygame
import math

# example of rectangle collision
# fb.com/groups/pygame

pygame.init()
surface = pygame.display.set_mode((640, 480))

black = [0, 0, 0]
red = [255, 0, 0]
blue = [0, 0, 255]

size = 60
x = 290
y = 180
dead = False

# press ESCAPE to exit
while True:
    e = pygame.event.get()
    if pygame.key.get_pressed()[pygame.K_ESCAPE]: break

    mx, my = pygame.mouse.get_pos()

    # work out if the rectangles overlap
    if not (mx > x + size or mx + size < x or my > y + size or my + size < y):
        dead = True

    surface.fill(black)
    if not dead: pygame.draw.rect(surface, red, (x, y, size, size))
    pygame.draw.rect(surface, blue, (mx, my, size, size))

    pygame.display.update()
    pygame.time.Clock().tick(60)

pygame.quit()