实现多场景来回切换

src/config/scenes.py

@@ -0,0 +1,8 @@
+from src.scenes.main_menu_scene import MainMenuScene
+from src.scenes.game_scene import GameScene
+
+
+scene_dict = {
+    "MainMenuScene": MainMenuScene,
+    "GameScene": GameScene,
+}

src/scenes/base_scene.py

@@ -21,8 +21,8 @@ class BaseScene:
         """
         pass
 
-    def switch_to_scene(self, scene_class):
+    def switch_to_scene(self, scene_name):
         """
         切换场景
         """
-        self.next_scene = scene_class(self.screen, self.clock)
+        self.next_scene = scene_name

src/scenes/game_scene.py

@@ -1,12 +1,24 @@
+import os
+
 import pygame
 
-from src.config.game_config import GameConfig
+from src.config.game_config import data_path, GameConfig
 from src.scenes.base_scene import BaseScene
 
 
 class GameScene(BaseScene):
+    name = "GameScene"
     def __init__(self, screen, clock):
         super().__init__(screen, clock)
+        # 初始化音乐
+        pygame.mixer.init()
+        # 播放并循环音乐
+        pygame.mixer_music.load(os.path.join(data_path(), "vespidaze-upbeat-rpg-battle-460971.mp3"))
+        pygame.mixer_music.play(-1)
+
+        self.back_status = False
+
+        # 状态值
         self.dirty_x = 400
         self.dirty_y = 300
 
@@ -21,6 +33,8 @@ class GameScene(BaseScene):
         self.BLUE = (0, 0, 255)
 
     def update(self):
+        if self.back_status:
+            self.switch_to_scene("MainMenuScene")
         if self.Left_status and self.dirty_x >= 0:
             self.dirty_x -= 1
         if self.right_status and self.dirty_x <= GameConfig.window_x - 20:
@@ -29,11 +43,26 @@ class GameScene(BaseScene):
             self.dirty_y -= 1
         if self.down_status and self.dirty_y <= GameConfig.window_y - 30:
             self.dirty_y += 1
+            # 填充窗口颜色
+        self.screen.fill((255, 255, 255))
+
+        # 绘制矩形(移动体和固定体)
         dirty = pygame.draw.rect(self.screen, self.BLUE, [self.dirty_x, self.dirty_y, 20, 30])
+        enemy = pygame.draw.rect(self.screen, self.RED, [40, 60, 10, 10])
+
+        # 碰撞监测
+        if dirty.colliderect(enemy):
+            print("die")
+            self.dirty_x = 400
+            self.dirty_y = 300
+            dirty = pygame.draw.rect(self.screen, self.BLUE, [self.dirty_x, self.dirty_y, 20, 30])
 
     def handle_event(self, event):
+        # 按下按键
         if event.type == pygame.KEYDOWN:
-            if event.key == pygame.K_LEFT or event.key == pygame.K_a:
+            if event.key == pygame.K_ESCAPE:
+                self.back_status = True
+            elif event.key == pygame.K_LEFT or event.key == pygame.K_a:
                 self.Left_status = True
             elif event.key == pygame.K_RIGHT or event.key == pygame.K_d:
                 self.right_status = True
@@ -41,6 +70,7 @@ class GameScene(BaseScene):
                 self.up_status = True
             elif event.key == pygame.K_DOWN or event.key == pygame.K_s:
                 self.down_status = True
+        # 松开按键
         elif event.type == pygame.KEYUP:
             if event.key == pygame.K_LEFT or event.key == pygame.K_a:
                 self.Left_status = False

src/scenes/main_menu_scene.py

@@ -5,10 +5,10 @@ import pygame
 from src.config.color import Color
 from src.config.game_config import data_path, GameConfig
 from src.scenes.base_scene import BaseScene
-from src.scenes.game_scene import GameScene
 
 
 class MainMenuScene(BaseScene):
+    name = "MainMenuScene"
     """
     主菜单场景，显示提示信息，展示雨天特效
     """
@@ -37,7 +37,7 @@ class MainMenuScene(BaseScene):
     def update(self):
         # 按键按下则切换场景
         if self.button_status:
-            self.switch_to_scene(GameScene)
+            self.switch_to_scene("GameScene")
 
         # 显示提示文本
         screen_rect = self.screen.get_rect()  # 获取屏幕矩形

start.py

@@ -1,6 +1,7 @@
 import pygame
 
 from src.config.game_config import GameConfig
+from src.config.scenes import scene_dict
 from src.scenes.main_menu_scene import MainMenuScene
 
 
@@ -16,8 +17,10 @@ class Game:
         # 设置计时器
         self.clock = pygame.time.Clock()
 
+        # 场景字典
+        self.game_scenes = scene_dict
         # 当前场景
-        self.scene = MainMenuScene(self.screen, self.clock)
+        self.scene = self.game_scenes["MainMenuScene"](self.screen, self.clock)
 
         # 运行循环
         self.running = True
@@ -35,7 +38,9 @@ class Game:
 
             # 检查是否切换场景
             if self.scene.next_scene is not None:
-                self.scene = self.scene.next_scene
+                if self.scene.next_scene in self.game_scenes.keys():
+                    scene_class = self.game_scenes[self.scene.next_scene]
+                    self.scene = scene_class(self.screen, self.clock)
 
             # 清屏
             self.screen.fill(GameConfig.bg_color)