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The Remove procedure, which lets us avoid adding the same letter to
our scrambled word twice, is shown in Figure 8-12. It removes a character
from strIn at the position you specify with the charPos parameter.
Figure 8-12: The Remove procedure
This procedure uses another temporary string, named str2, to build
the new string we want to create. It starts by emptying str2 and setting a
loop counter, n, to 1 to access the first character of strIn u. The procedure
then starts a repeat loop to assemble the output string v. If we don’t want
to delete the current character, we append it to str2 w. The loop counter is
then incremented to access the next letter of strIn x. When the procedure
finishes, strIn is set to the new word (str2) y.
Now we are ready to explore the main script of the game, shown in
Figure 8-13.
Figure 8-13: The main script of the Unscramble game
194 Chapter 8
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