Pygame角色移动指南：掌握坐标更新与Rect对象应用

import pygame

pygame.init()

SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600

screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("角色移动示例")

# 假设 'Character.png' 存在，或者创建一个Surface作为占位符
try:
    player_image = pygame.image.load('Character.png')
except pygame.error:
    print("Character.png 未找到，使用绿色矩形代替。")
    player_image = pygame.Surface((50, 50))
    player_image.fill('green')

# 初始化角色位置
player_x = 30
player_y = 300
player_speed = 5 # 角色移动速度

running = True
clock = pygame.time.Clock() # 用于控制帧率

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

    # 检测按键状态
    keys = pygame.key.get_pressed()
    if keys[pygame.K_w]: # W键向上移动
        player_y -= player_speed
    if keys[pygame.K_s]: # S键向下移动
        player_y += player_speed
    if keys[pygame.K_a]: # A键向左移动
        player_x -= player_speed
    if keys[pygame.K_d]: # D键向右移动
        player_x += player_speed

    # 边界检查 (可选，防止角色移出屏幕)
    player_x = max(0, min(player_x, SCREEN_WIDTH - player_image.get_width()))
    player_y = max(0, min(player_y, SCREEN_HEIGHT - player_image.get_height()))

    # 填充背景
    screen.fill((0, 0, 0)) # 黑色背景

    # 绘制角色到新位置
    screen.blit(player_image, (player_x, player_y))

    # 更新显示
    pygame.display.flip()

    # 控制帧率
    clock.tick(60) # 保持60帧每秒

pygame.quit()

# ... (初始化部分同上)

# 获取图像的Rect对象，并设置初始位置
player_rect = player_image.get_rect()
player_rect.x = 30
player_rect.y = 300

# ... (游戏循环内部)
# 更新Rect对象的位置
if keys[pygame.K_w]:
    player_rect.y -= player_speed

# 绘制角色，直接传入Rect对象
screen.blit(player_image, player_rect)

# 假设有一个敌人矩形
enemy_rect = pygame.Rect(100, 100, 50, 50) # 敌人位置和大小

if player_rect.colliderect(enemy_rect):
    print("角色与敌人发生碰撞！")
    # 执行碰撞后的逻辑，如扣血、得分等

import pygame
import random

# --- 常量定义 ---
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
PLAYER_SPEED = 5
FPS = 60

# --- 初始化Pygame ---
pygame.init()
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("Pygame角色移动与碰撞教程")

# --- 游戏对象创建 ---
# 玩家角色 (绿色方块)
player_image = pygame.Surface((30, 30))
player_image.fill('green')
player_rect = player_image.get_rect()
player_rect.center = (SCREEN_WIDTH // 2, SCREEN_HEIGHT // 2) # 初始居中

# 目标对象/苹果 (红色方块)
apple_image = pygame.Surface((25, 25))
apple_image.fill('red')
apple_rect = apple_image.get_rect()

def place_apple_randomly():
    """将苹果放置在屏幕内的随机位置"""
    apple_rect.x = random.randint(0, SCREEN_WIDTH - apple_rect.width)
    apple_rect.y = random.randint(0, SCREEN_HEIGHT - apple_rect.height)

place_apple_randomly() # 初始放置一个苹果

# --- 游戏变量 ---
score = 0
running = True
clock = pygame.time.Clock() # 创建Clock对象用于帧率控制

# --- 游戏主循环 ---
while running:
    # 1. 事件处理
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 2. 游戏状态更新
    keys = pygame.key.get_pressed() # 获取所有按键的当前状态
    if keys[pygame.K_w]:
        player_rect.y -= PLAYER_SPEED
    if keys[pygame.K_s]:
        player_rect.y += PLAYER_SPEED
    if keys[pygame.K_a]:
        player_rect.x -= PLAYER_SPEED
    if keys[pygame.K_d]:
        player_rect.x += PLAYER_SPEED

    # 边界检查，防止玩家移出屏幕
    player_rect.left = max(0, player_rect.left)
    player_rect.right = min(SCREEN_WIDTH, player_rect.right)
    player_rect.top = max(0, player_rect.top)
    player_rect.bottom = min(SCREEN_HEIGHT, player_rect.bottom)

    # 碰撞检测
    if player_rect.colliderect(apple_rect):
        score += 1
        print(f"得分: {score}")
        place_apple_randomly() # 重新放置苹果

    # 3. 渲染
    screen.fill((0, 0, 0)) # 填充背景为黑色
    screen.blit(apple_image, apple_rect) # 绘制苹果
    screen.blit(player_image, player_rect) # 绘制玩家

    # 4. 显示更新
    pygame.display.flip() # 更新整个屏幕显示

    # 5. 帧率控制
    clock.tick(FPS) # 控制游戏每秒运行的帧数

# --- 游戏结束 ---
pygame.quit()