Question

可能重复：
How would i change the width of the snake in my “snake game”?

我正在使用python和pygame：我怎样才能改变游戏中“蠕虫”的宽度？到目前为止蛇只有1像素宽，我怎么能将宽度改为3或4像素宽？

class Worm:
    def __init__(self, surface):
        self.surface = surface
        self.x = surface.get_width()/2
        self.y = surface.get_height()/2
        self.length = 5
        self.grow_to = 50
        self.vx = 0
        self.vy = -1
        self.body = []
        self.crashed = False
        self.color = (255, 255, 0)




    def move(self):
        """Move the worm"""
        self.x += self.vx
        self.y += self.vy

        if (self.x, self.y) in self.body:
            self.crashed = True

        self.body.insert(0, (self.x, self.y))

        if (self.grow_to > self.length):
            self.length += 1

        if len(self.body) > self.length:
            self.body.pop()

    def draw(self):
       for x, y in self.body:
           self.surface.set_at((x, y), self.color)

    def position (self):
        return self.x, self.y

    def eat(self):
        self.grow_to += 25

新法典_____________________________但这会导致蛇继续生长

class Worm:
    def __init__(self, surface):
        self.surface = surface
        self.x = surface.get_width()/2
        self.y = surface.get_height()/2
        self.length = 5
        self.grow_to = 50
        self.vx = 0
        self.vy = -1
        self.body = []
        self.crashed = False
        self.color = (255, 255, 0)

    def move(self):
        """Move the worm"""
        self.x += self.vx
        self.y += self.vy

        if (self.x, self.y) in self.body:
            self.crashed = True

        self.body.insert(0, (self.x, self.y))
        self.body.insert(0, (self.x, self.y+1))
        self.body.insert(0, (self.x, self.y-1))
        self.body.insert(0, (self.x+1, self.y))
        self.body.insert(0, (self.x-1, self.y))

        if (self.grow_to > self.length):
            self.length += 1

        if len(self.body) > self.length:
            self.body.pop()

    def draw(self):
       for x, y in self.body:
           self.surface.set_at((x, y), self.color)
       for x, y in self.body:
           self.surface.set_at((x, y), self.color)

    def position (self):
        return self.x, self.y
        return self.x, self.y+1
        return self.x, self.y-1
        return self.x+1, self.y
        return self.x-1, self.y

    def eat(self):
        self.grow_to += 25

Answer 1

用

增长

 self.body.insert(0, (self.x, self.y))
 self.body.insert(0, (self.x, self.y+1))
 self.body.insert(0, (self.x, self.y-1))
 self.body.insert(0, (self.x+1, self.y))
 self.body.insert(0, (self.x-1, self.y))
   ...   # corner cases if they are important

draw（）会自动接收正文中的新像素。不错的游戏，我不久前在诺基亚PyS60上攻击了它。

Answer 2

Surface.set_at用于放置彩色像素，但是通过操作x值或y值，您应该能够通过循环运行该代码并将其打印出来多次。

编辑抱歉，代码应该添加到Y值以使蛇“更厚”......

这是伪代码：

#Snake
for snakeLength in range(3):
    if Snake is facing right:
        self.surface.set_at((x, y+snakeLength), self.color)

这是我这样做的想法，但它是未经考验的抱歉。我经常使用精灵。

修改： Pygame Docs，“一次获取和设置一个像素通常太慢，无法在游戏或实时情况下使用。”< / p>

如何在游戏中改变“蠕虫”的大小？

2 个答案: