Random Drops
Part of the The Game Loop section of Coddy's Pygame journey. Lesson 25 of 32.
When the block falls past the bottom, put it back above the top so it falls again. Its top is past the bottom when block.top > 360.
To make the game less predictable, drop it at a random place. Python's random module picks numbers: random.randint(0, 460) is a whole number from 0 to 460, both included.
import random
if block.top > 360:
block.y = -20
block.x = random.randint(0, 460)Why 460? The block is 20 wide, so an x of 460 puts its right side at the window's edge. And y = -20 puts it right above the window, so it slides in from the top.
Challenge
Easy- Add
import randomat the top. - After the block falls, when
block.top > 360, setblock.y = -20andblock.xtorandom.randint(0, 460).
Try it yourself
import pygame
pygame.init()
screen = pygame.display.set_mode((480, 360))
pygame.display.set_caption("Catch the Blocks")
clock = pygame.time.Clock()
basket = pygame.Rect(200, 330, 80, 16)
block = pygame.Rect(220, 0, 20, 20)
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]:
basket.x -= 8
if keys[pygame.K_RIGHT]:
basket.x += 8
basket.clamp_ip(screen.get_rect())
block.y += 3
screen.fill((30, 30, 46))
pygame.draw.rect(screen, (80, 160, 255), basket)
pygame.draw.rect(screen, (235, 80, 80), block)
pygame.display.flip()
clock.tick(60)
pygame.quit()
All lessons in The Game Loop
Practice on your own: Pygame playground