Challenges

• Easy: Add and implement new commands for controlling the characters in the RPG NPC demos.

• Intermediate: Rework the script interpreter so it can handle whitespace more flexibly. Try allowing commands and parameters to be separated from one another by any arbitrary amount of spaces and tabs, in turn enabling you to be more free-form about your code.

• Intermediate: Add escape sequences that allow the double-quote symbol (") to appear within string literals without messing up the interpreter. Naturally, this can be important when scripting dialogue sequences.

• Difficult: Implement anything from the next chapter (after reading it, of course).