添加玩家类、玩家移动与太空场景

src/entity/player.py

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+import pygame
+
+from src.config.color import Color
+
+
+class Player:
+    def __init__(self, screen):
+        self.screen = screen
+        screen_rect = self.screen.get_rect()
+        self.x = screen_rect.centerx
+        self.y = screen_rect.centery
+        self.v = 0.1
+        self.status = []
+
+    def move(self, dx, dy):
+        if "run" in self.status:
+            dx *= 5
+            dy *= 5
+        self.x += dx
+        self.y += dy
+
+    def show(self):
+        pygame.draw.circle(self.screen, Color.white, (int(self.x), int(self.y)), 10)
+
+    def update(self):
+        pass

src/scenes/space_scene.py

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+import os
+
+import pygame
+
+from src.config.color import Color
+from src.config.game_config import data_path, GameConfig
+from src.entity.player import Player
+from src.scenes.base_scene import BaseScene
+
+
+# class Player:
+#     """
+#     简单的玩家精灵，仅保存 image 和 rect，避免依赖 pygame.examples.aliens.Player
+#     aliens 内部依赖全局的 images 列表初始化，外部直接实例化会导致 images[0] 越界
+#     """
+#     def __init__(self, image_path: str, center=(400, 300)):
+#         self.image = pygame.image.load(image_path).convert_alpha()
+#         self.rect = self.image.get_rect()
+#         self.rect.center = center
+#         # 限制活动范围在窗口内
+#         self.bounds = pygame.Rect(0, 0, int(GameConfig.window_x), int(GameConfig.window_y))
+#
+#     def clamp_into_bounds(self):
+#         if not self.bounds.contains(self.rect):
+#             self.rect.clamp_ip(self.bounds)
+
+
+class SpaceScene(BaseScene):
+    name = "SpaceScene"  # 场景名称
+
+    def __init__(self, screen):
+        super().__init__(screen)
+        self.Left_status = False
+        self.right_status = False
+        self.up_status = False
+        self.down_status = False
+
+        # 实例化玩家
+        self.player = Player(screen)
+
+        # 设置字体
+        font_file = os.path.join(data_path(), "Dymon-ShouXieTi.otf")
+        self.font = pygame.font.Font(font_file, 32)
+
+    def update(self, dt=0):
+        """
+        场景每帧更新逻辑
+        """
+        # 移动玩家
+        player_move_distance = self.player.v * dt
+
+        if self.Left_status:
+            self.player.move(-player_move_distance, 0)
+        if self.right_status:
+            self.player.move(player_move_distance, 0)
+        if self.up_status:
+            self.player.move(0, -player_move_distance)
+        if self.down_status:
+            self.player.move(0, player_move_distance)
+        # 显示玩家
+        self.player.show()
+        self.__show(self.player.status)
+
+    def handle_event(self, event):
+        """
+        接收主循环传来的事件并处理
+        """
+        if event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_ESCAPE:
+                self.switch_to_scene("MainMenuScene")
+            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
+            elif event.key == pygame.K_UP or event.key == pygame.K_w:
+                self.up_status = True
+            elif event.key == pygame.K_DOWN or event.key == pygame.K_s:
+                self.down_status = True
+            if event.key == pygame.K_LSHIFT:
+                if "run" not in self.player.status:
+                    self.player.status.append("run")
+
+        # 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
+            elif event.key == pygame.K_RIGHT or event.key == pygame.K_d:
+                self.right_status = False
+            elif event.key == pygame.K_UP or event.key == pygame.K_w:
+                self.up_status = False
+            elif event.key == pygame.K_DOWN or event.key == pygame.K_s:
+                self.down_status = False
+            if event.key == pygame.K_LSHIFT:
+                if "run" in self.player.status:
+                    self.player.status.remove("run")
+
+
+    def __show(self, info, dest=(0, 0)):
+        """
+        显示调试文本
+        """
+        if not isinstance(info, str):
+            info = str(info)
+        info_text = self.font.render(info, True, Color.white)
+        self.screen.blit(info_text, dest)