归一化移动

src/entity/player.py

@@ -1,3 +1,5 @@
+import math
+
 import pygame
 
 from src.config.color import Color
@@ -9,18 +11,50 @@ class Player:
         screen_rect = self.screen.get_rect()
         self.x = screen_rect.centerx
         self.y = screen_rect.centery
-        self.v = 0.1
-        self.status = []
+        self.v = 0.0
+        self.base_speed = 3.0
+        self.run_multiplier = 2.5
+        self.is_running = False
 
-    def move(self, dx, dy):
-        if "run" in self.status:
-            dx *= 5
-            dy *= 5
-        self.x += dx
-        self.y += dy
+    def move(self, dx, dy, dt):
+        """
+        归一化移动，避免斜向移动过快
+        """
+        magnitude = math.hypot(dx, dy)
+        if magnitude > 0:
+            dx /= magnitude
+            dy /= magnitude
+        speed = self.base_speed
+        if self.is_running:
+            speed *= self.run_multiplier
+
+        # 应用速度和时间差 (dt)，实现帧率无关的移动
+        dt /= 1000.0  # 注意：这里 dt 是以秒为单位的浮点数
+        self.x += dx * speed * dt * 60  # 乘以 60 是为了兼容 60FPS 下的体感速度
+        self.y += dy * speed * dt * 60
+
+    def handle_input(self, keys, dt):
+        drx = 0
+        dry = 0
+        if keys[pygame.K_LEFT] or keys[pygame.K_a]:
+            drx -= 1
+        if keys[pygame.K_RIGHT] or keys[pygame.K_d]:
+            drx += 1
+        if keys[pygame.K_UP] or keys[pygame.K_w]:
+            dry -= 1
+        if keys[pygame.K_DOWN] or keys[pygame.K_s]:
+            dry += 1
+        # 按下shift冲刺
+        if keys[pygame.K_LSHIFT]:
+            self.is_running = True
+        else:
+            self.is_running = False
+        # 移动
+        self.move(drx, dry, dt)
 
     def show(self):
         pygame.draw.circle(self.screen, Color.white, (int(self.x), int(self.y)), 10)
 
-    def update(self):
-        pass
+    def update(self, keys, dt):
+        self.handle_input(keys, dt)
+        self.show()

src/scenes/space_scene.py

@@ -46,20 +46,11 @@ class SpaceScene(BaseScene):
         """
         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)
+        # 玩家更新，接收键盘输入与每帧间隔
+        self.player.update(pygame.key.get_pressed(), dt)
+
+        self.__show("加速："+str(self.player.is_running))
 
     def handle_event(self, event):
         """
@@ -68,31 +59,6 @@ class SpaceScene(BaseScene):
         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)):