Exercise 48: Advanced User Input

In past games you handled the user's input by simply expecting set strings. If the user typed "run", and exactly "run", then the game worked. If they typed in similar phrases like "run fast" it would fail. What we need is a device that lets users type phrases in various ways and then convert that into something the computer understands. For example, we'd like to have all of these phrases work the same:

  • open door
  • open the door
  • go THROUGH the door
  • punch bear
  • Punch The Bear in the FACE

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