Java Applet - ArrayIndexOutOfBoundsException（第 2 部分）

Question

我解决了之前的问题。但是现在在我的图块地图上...如果我尝试向右移动 9 个图块，并尝试到达第 9 个图块...我会收到此错误：

Exception in thread "AWT-EventQueue-1" java.lang.ArrayIndexOutOfBoundsException: 8
    at tileGen.blocked(tileGen.java:125)
    at tileGen.keyPressed(tileGen.java:58)
    at java.awt.Component.processKeyEvent(Component.java:6221)
    at java.awt.Component.processEvent(Component.java:6040)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4630)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850)
    at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712)
    at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
    at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855)
    at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676)
    at java.awt.Component.dispatchEventImpl(Component.java:4502)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

这是代码： http://www.so.pastebin.com/hYkpQf13

我尝试了很多解决方案，但都失败了。

Answer 1

我相信问题是你混淆了坐标。您使用 X 作为左右坐标，使用 Y 作为上下坐标，而实际上应该是相反的方式（或者您应该镜像您的板）。

向右走时，您增加 X，在棋盘上，这意味着您有效地向下移动一行。由于棋盘有 8 行，因此第 9 步棋会让您出界。