rect.py

import pygame
import sys

pygame.init()

# Window setup
WIDTH, HEIGHT = 640, 360
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Pygame Hello World")

p1_rect = pygame.Rect(50,50,20,100)
ball = pygame.Rect(250,50,20,20)
clock = pygame.time.Clock()
speed = 5

def detectHit(r1,r2):
    if (
        r1.top + r1.height > r2.top and
        r1.top < r2.top + r2.height and
        r1.left + r1.width > r2.left and
        r1.left < r2.left + r2.width
    ):
        return True
    else:
        return False

# Main loop
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    keys = pygame.key.get_pressed()

    if keys[pygame.K_LEFT]:
        ball.x -= speed
    if keys[pygame.K_RIGHT]:
        ball.x += speed
    if keys[pygame.K_UP]:
        ball.y -= speed
    if keys[pygame.K_DOWN]:
        ball.y += speed

    screen.fill((30, 30, 30))  # dark background
    pygame.draw.rect(screen, 'red', p1_rect)
    pygame.draw.rect(screen, 'red', ball)

    if detectHit(p1_rect, ball):
        print('dead')

    pygame.display.flip()

    clock.tick(60)

pygame.quit()
sys.exit()