python - Pygame 矩形之间的碰撞

Question

所以我想制作一个基本的 2D 游戏，你可以在其中控制一个矩形，如果你碰到墙壁就会死。我创建了一些墙图片

但我现在被困住了。尽管我查看了文档，但我真的不知道代码应该是什么样子。第二件事是我不知道如何创建“Sprite”。如何使我的矩形成为“ Sprite ”，或者没关系，它可以保持只是一个移动的普通矩形？

import pygame
pygame.init()

win = pygame.display.set_mode((1200, 600))

pygame.display.set_caption("My Game")

x = 40
y = 45
width = 30
height = 30
vel = 4
black = (0,0,0)

run = True
while run:
pygame.time.delay(15)

for event in pygame.event.get():
    if event.type == pygame.QUIT:
        run = False

win.fill((255,255,255))

keys = pygame.key.get_pressed()

if keys[pygame.K_LEFT] and x > 0:
    x -= vel
if keys[pygame.K_RIGHT] and x < 1200 - width:
    x += vel
if keys[pygame.K_UP] and y > 0:
    y -= vel
if keys[pygame.K_DOWN] and y < 600 - height:
    y += vel

pygame.draw.rect(win, (255, 0, 0), (x, y, width, height))

# Boundaries
pygame.draw.rect(win, (black), (0, 0, 1200, 20))
pygame.draw.rect(win, (black), (0, 0, 20, 600))
pygame.draw.rect(win, (black), (0, 580, 1200, 20))
pygame.draw.rect(win, (black), (1180, 0, 20, 600))

# Obstacle walls
pygame.draw.rect(win, (black), (300, 0, 20, 530))
pygame.draw.rect(win, (black), (20, 100, 230, 20))
pygame.draw.rect(win, (black), (70, 200, 230, 20))
pygame.draw.rect(win, (black), (20, 300, 230, 20))
pygame.draw.rect(win, (black), (70, 400, 230, 20))

# Middle Wall
pygame.draw.rect(win, (black), (600, 100, 20, 500))


pygame.display.update()

pygame.quit()

Answer 1

您不需要 pygame Sprite 和 Sprite 组来进行碰撞检测，您可以只使用 pygame.Rects 。我将所有墙壁放入列表中并将它们设为 pygame.Rect 对象，然后就可以使用 colliderect碰撞的直方图。您还需要一个用于播放器的矩形(只需将 x, y, width, height 变量替换为矩形)。使用 for 循环迭代 walls 列表，以检查是否与玩家矩形发生碰撞并绘制它们。

import pygame


pygame.init()
win = pygame.display.set_mode((1200, 600))
clock = pygame.time.Clock()  # A clock to limit the frame rate.
BLACK = (0, 0, 0)
WHITE = (255,255,255)
RED = (255, 0, 0)

# The player variables have been replaced by a pygame.Rect.
player = pygame.Rect(40, 45, 30, 30)
vel = 4
# The walls are now pygame.Rects as well. Just put them into a list.
walls = [
    pygame.Rect(0, 0, 1200, 20), pygame.Rect(0, 0, 20, 600),
    pygame.Rect(0, 580, 1200, 20), pygame.Rect(1180, 0, 20, 600),
    pygame.Rect(300, 0, 20, 530), pygame.Rect(20, 100, 230, 20),
    pygame.Rect(70, 200, 230, 20), pygame.Rect(20, 300, 230, 20),
    pygame.Rect(70, 400, 230, 20), pygame.Rect(600, 100, 20, 500),
    ]

run = True
while run:
    # Handle the events.
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    keys = pygame.key.get_pressed()

    # Update the player coordinates.
    if keys[pygame.K_LEFT] and player.x > 0:
        player.x -= vel
    if keys[pygame.K_RIGHT] and player.x < 1200 - player.width:
        player.x += vel
    if keys[pygame.K_UP] and player.y > 0:
        player.y -= vel
    if keys[pygame.K_DOWN] and player.y < 600 - player.height:
        player.y += vel

    # Game logic.
    for wall in walls:
        # Check if the player rect collides with a wall rect.
        if player.colliderect(wall):
            print('Game over')
            # Then quit or restart.

    # Draw everything.
    win.fill(WHITE)
    pygame.draw.rect(win, RED, player)
    # Use a for loop to draw the wall rects.
    for wall in walls:
        pygame.draw.rect(win, BLACK, wall)

    pygame.display.update()
    clock.tick(60)  # Limit the frame rate to 60 FPS.

pygame.quit()