Inform7互动小说开发：如何让NPC Auto-Doc响应玩家say ah指令

错误原因 #

你原代码报错的核心原因是Inform7标准规则集未内置speaking通用动作，玩家输入的say [文本]指令默认没有对应的统一动作规则可以捕获，所以你尝试的After speaking这类写法无法通过编译。

通用回复实现（所有在场发言都触发Auto-Doc回应） #

以下代码先自定义了speaking动作，将所有玩家输入的say类指令统一归入该动作，只要Auto-Doc在同一场景就会触发固定回复，完全满足你最低需求：

The exam table is a supporter in the Med Bay. It is fixed in place and enterable.
In the Med Bay is a person called Auto-Doc.

After entering the exam table, say "A number of bright lights embedded in an overhead panel bathe you in a cold, white light. A panel in the wall opens and an auto-doc trundles forth on a three-wheeled base. Clutching a tongue depressor in its mechanical grip, a small speaker hidden within crackles with the words 'Say, ah.'"

Understand "say [text]" as speaking. Speaking is an action applying to one topic.
Carry out speaking: say "You say '[the topic understood]'."

After speaking when Auto-Doc is in the location:
    say "The Auto-Doc's speaker crackles in response: 'Mmm. Mm-hmm. Very interesting.'"

Instead of telling Auto-Doc about something:
    try speaking the topic understood instead.

该代码兼容玩家两种输入习惯：输入say ah或者say ah to auto-doc都会触发对应回复。

定向回复实现（仅识别“ah”触发回应） #

如果需要仅当玩家说ah的时候触发Auto-Doc的回应，其他发言保持默认逻辑，替换上述代码中的After speaking规则即可：

After speaking when Auto-Doc is in the location:
    if the topic understood matches "ah":
        say "The Auto-Doc's speaker crackles in response: 'Mmm. Mm-hmm. Very interesting.' It retracts the tongue depressor and begins rolling back to its wall panel.";
    otherwise:
        continue the action.

内容的提问来源于stack exchange，提问作者Dave H.