如果每个正方形都有一个到中心的距离值呢?这样，对于每个给定的正方形，你可以在所有可能的方向上得到相邻正方形的值。你选择最小值的正方形，然后移动到那个正方形。

数值将使用任何可用的算法预先计算出来。

简而言之，不是很好。如果你改变了《吃豆人》迷宫，眼睛就不一定会回来。有些四处游荡的黑客就有这个问题。所以它依赖于一个合作迷宫。

你应该看看寻径算法，比如Dijsktra算法或a *算法。这就是你的问题所在:图/路径问题。

这是一个寻径问题。有关流行的算法，请参见http://wiki.gamedev.net/index.php/A*。

我不太清楚你是如何执行游戏的，但你可以这么做:

Determine the eyes location relative position to the gate. i.e. Is it left above? Right below? Then move the eyes opposite one of the two directions (such as make it move left if it is right of the gate, and below the gate) and check if there are and walls preventing you from doing so. If there are walls preventing you from doing so then make it move opposite the other direction (for example, if the coordinates of the eyes relative to the pin is right north and it was currently moving left but there is a wall in the way make it move south. Remember to keep checking each time to move to keep checking where the eyes are in relative to the gate and check to see when there is no latitudinal coordinate. i.e. it is only above the gate. In the case it is only above the gate move down if there is a wall, move either left or right and keep doing this number 1 - 4 until the eyes are in the den. I've never seen a dead end in Pacman this code will not account for dead ends. Also, I have included a solution to when the eyes would "wobble" between a wall that spans across the origin in my pseudocode.

一些伪代码:

   x = getRelativeOppositeLatitudinalCoord()
   y
   origX = x
    while(eyesNotInPen())
       x = getRelativeOppositeLatitudinalCoordofGate()
       y = getRelativeOppositeLongitudinalCoordofGate()
       if (getRelativeOppositeLatitudinalCoordofGate() == 0 && move(y) == false/*assume zero is neither left or right of the the gate and false means wall is in the way */)
            while (move(y) == false)
                 move(origX)
                 x = getRelativeOppositeLatitudinalCoordofGate()
        else if (move(x) == false) {
            move(y)
    endWhile

我的方法有点内存密集型(从《吃豆人》时代的角度来看)，但你只需要计算一次，它适用于任何关卡设计(包括跳跃)。

一次标记节点

当你第一次加载一个关卡时，将所有怪物巢穴节点标记为0(代表与巢穴的距离)。继续向外标记已连接的节点1，连接到它们的节点2，依此类推，直到所有节点都被标记。(注意:如果巢穴有多个入口，这也是有效的)

我假设您已经有了表示每个节点和到它们的邻居的连接的对象。伪代码可能看起来像这样:

public void fillMap(List<Node> nodes) { // call passing lairNodes
    int i = 0;

    while(nodes.count > 0) {
        // Label with distance from lair
        nodes.labelAll(i++);

        // Find connected unlabelled nodes
        nodes = nodes
            .flatMap(n -> n.neighbours)
            .filter(!n.isDistanceAssigned());
    }
}

眼睛移动到距离标签最小的邻居

一旦所有节点都标记好了，路由眼睛就变得很简单了……只需要选择距离标签最小的相邻节点(注意:如果多个节点的距离相等，那么选择哪个节点并不重要)。伪代码:

public Node moveEyes(final Node current) {
    return current.neighbours.min((n1, n2) -> n1.distance - n2.distance);
}

全标记示例