代码

import mathimport pygame# 限制物体在屏幕内
import pytmxdef limit_position_to_screen(x, y, width, height):"""限制物体在屏幕内"""x = max(0, min(x, SCREEN_WIDTH - width))  # 限制x坐标y = max(0, min(y, SCREEN_HEIGHT - height))  # 限制y坐标return x, ypygame.init()# 设置窗口大小
SCREEN_WIDTH = 640
SCREEN_HEIGHT = 640
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("Pytmx Demo")# 加载 .tmx 地图文件
tmx_data = pytmx.load_pygame("demo2.tmx")  # 将 'your_map.tmx' 替换为你的文件路径# player.x = 50
# player.y = 50
player_speed = 3  # 玩家速度
# 设置玩家的初始位置
player = None
# 找到玩家对象（在 Object Layer 中）
for obj in tmx_data.objects:if obj.name == "player":player = objbreakif player is None:raise ValueError("Player object not found in the Object Layer")# 检查某个位置是否有墙体
def check_collision(x, y):# 获取该位置的瓦片 IDdic = Nonetry:x_pos = math.floor(x / tmx_data.tilewidth)y_pos = math.floor(y / tmx_data.tileheight)# print(x, y)print(x_pos, y_pos)dic = tmx_data.get_tile_properties(x_pos, y_pos, layer=1)except Exception as e:pass# print(gid)if dic:return dic['Collidable'] == Trueelse:return False# 创建一个地图渲染函数
def draw_map():for layer in tmx_data.visible_layers:if isinstance(layer, pytmx.TiledTileLayer):if layer.name == 'wall':continuefor x, y, gid in layer:tile = tmx_data.get_tile_image_by_gid(gid)if tile:screen.blit(tile, (x * tmx_data.tilewidth, y * tmx_data.tileheight))# 游戏主循环
running = True
while running:clock = pygame.time.Clock()draw_map()  # 绘制地图for event in pygame.event.get():if event.type == pygame.QUIT:running = False# 处理键盘输入来移动玩家keys = pygame.key.get_pressed()new_x, new_y = player.x, player.yif keys[pygame.K_LEFT]:new_x -= player_speed  # 向左移动if not check_collision(new_x, new_y):player.x = new_xif keys[pygame.K_RIGHT]:new_x += player_speed  # 向右移动if not check_collision(new_x, new_y):player.x = new_xif keys[pygame.K_UP]:new_y -= player_speed  # 向上移动if not check_collision(new_x, new_y):player.y = new_yif keys[pygame.K_DOWN]:new_y += player_speed  # 向下移动if not check_collision(new_x, new_y):player.y = new_y# 限制玩家位置在屏幕内player.x, player.y = limit_position_to_screen(player.x, player.y, 32, 32)pygame.draw.rect(screen, (255, 0, 0), pygame.Rect(player.x, player.y, 32, 32))  # 32x32 是玩家的大小pygame.display.flip()  # 更新显示# 控制帧率clock.tick(30)pygame.quit()