Python Pygame摄像机运动

所以，我正在用Pygame用Python制作一个2d TopView游戏。我一直在尝试创建一个相机运动，将保持在屏幕中央的球员。我该怎么做？我想有一个单一的表面“地图”，这将是blit的屏幕表面。如果这样做，我可以只构建一次地图，然后以某种方式调整它的位置，使玩家始终保持在屏幕中央。我的播放器将其位置更新如下：

   def update(self, dx=0, dy=0):
        newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
        entityrect = pygame.Rect(newpos, self.surface.get_size())  # Creates a rect for the player
        collided = False
        for o in self.objects:  # Loops for solid objects in the map
            if o.colliderect(entityrect):
                collided = True
                break

        if not collided:
            # If the player didn't collide, update the position
            self.pos = newpos

        return collided

map1 = pygame.Surface((3000, 3000))
img = pygame.image.load("floor.png")
for x in range(0, 3000, img.get_width()):
    for y in range(0, 3000, img.get_height()):
        map1.blit(img, (x, y))

camera = [0,0]
...
def update(self, dx=0, dy=0):
    newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
    entityrect = pygame.Rect(newpos, self.surface.get_size())
    camera[0] += dx
    camera[1] += dy
    ...

screen.blit(player, (player.pos[0]-camera[0], player.pos[1]-camera[1]))

我发现了，但那是一个侧面的平台。所以我的地图看起来像这样：

   def update(self, dx=0, dy=0):
        newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
        entityrect = pygame.Rect(newpos, self.surface.get_size())  # Creates a rect for the player
        collided = False
        for o in self.objects:  # Loops for solid objects in the map
            if o.colliderect(entityrect):
                collided = True
                break

        if not collided:
            # If the player didn't collide, update the position
            self.pos = newpos

        return collided

map1 = pygame.Surface((3000, 3000))
img = pygame.image.load("floor.png")
for x in range(0, 3000, img.get_width()):
    for y in range(0, 3000, img.get_height()):
        map1.blit(img, (x, y))

camera = [0,0]
...
def update(self, dx=0, dy=0):
    newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
    entityrect = pygame.Rect(newpos, self.surface.get_size())
    camera[0] += dx
    camera[1] += dy
    ...

screen.blit(player, (player.pos[0]-camera[0], player.pos[1]-camera[1]))

那么我该如何做摄像机运动呢？任何帮助都将不胜感激

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另外，我希望你能理解我的问题，英语不是我的母语

你没有展示你是如何绘制地图或玩家的，但你可以这样做：

   def update(self, dx=0, dy=0):
        newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
        entityrect = pygame.Rect(newpos, self.surface.get_size())  # Creates a rect for the player
        collided = False
        for o in self.objects:  # Loops for solid objects in the map
            if o.colliderect(entityrect):
                collided = True
                break

        if not collided:
            # If the player didn't collide, update the position
            self.pos = newpos

        return collided

map1 = pygame.Surface((3000, 3000))
img = pygame.image.load("floor.png")
for x in range(0, 3000, img.get_width()):
    for y in range(0, 3000, img.get_height()):
        map1.blit(img, (x, y))

camera = [0,0]
...
def update(self, dx=0, dy=0):
    newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
    entityrect = pygame.Rect(newpos, self.surface.get_size())
    camera[0] += dx
    camera[1] += dy
    ...

screen.blit(player, (player.pos[0]-camera[0], player.pos[1]-camera[1]))

然后你像这样画地图

screen.blit(map1, (0,0), 
            (camera[0], camera[1], screen.get_width(), screen.get_height())
           )

这样，地图将沿相机的相反方向滚动，使播放器保持静止

如果你不想让玩家在你的世界里移动，但不想在屏幕上移动，你可以这样做：

   def update(self, dx=0, dy=0):
        newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
        entityrect = pygame.Rect(newpos, self.surface.get_size())  # Creates a rect for the player
        collided = False
        for o in self.objects:  # Loops for solid objects in the map
            if o.colliderect(entityrect):
                collided = True
                break

        if not collided:
            # If the player didn't collide, update the position
            self.pos = newpos

        return collided

map1 = pygame.Surface((3000, 3000))
img = pygame.image.load("floor.png")
for x in range(0, 3000, img.get_width()):
    for y in range(0, 3000, img.get_height()):
        map1.blit(img, (x, y))

camera = [0,0]
...
def update(self, dx=0, dy=0):
    newpos = (self.pos[0] + dx, self.pos[1] + dy)  # Calculates a new position
    entityrect = pygame.Rect(newpos, self.surface.get_size())
    camera[0] += dx
    camera[1] += dy
    ...

screen.blit(player, (player.pos[0]-camera[0], player.pos[1]-camera[1]))

---

如果你想让你的玩家一直在屏幕中央，那么“移动玩家”实际上应该只是以相反的方式移动地图。如果玩家应该向右扫射一段距离

x

，则将地图向左移动一段距离

-x

。Darthfett在您提供的链接中给出的答案似乎非常相关。您看过这个答案了吗：