Description
You are to implement a game that tests a user’s typing speed. The game randomly chooses
words from an array of strings containing “The”, “quick”, “brown”, “fox”, “jumps”, “over”, “the”,
“lazy”, “dog”. Each word must appear exactly once. The program should output the time it
takes for the user to correctly enter the entire array of words. If the user incorrectly types a
word, the program must prompt the user to retype the incorrect word.
Rules and requirements:
Random permutation of words should be generated via calls to srand() and rand().
Seed srand() using the usec field from a call to gettimeofday().
Each permutation of the words must be possible.
Ensure that your random permutation is generated using a minimal number of rand() calls.
Hint: A modulus that decreases for each word selected is sufficient for full credit.
Use timer macro “timersub()” for handling operations on struct timevals
(/usr/include/sys/time.h).
Timing should begin when the random permutation is first given to the user.
Timing should end when the user correctly inputs the permutation correctly.
Hints and suggestions:
Consult the linux man pages for more information on rand()/srand(), gettimeofday(), timersub(),
printf()/scanf(), strlen(), strncmp() etc.
Here is an example game session:
% ls
Makefile typing_word_game.c
% make
gcc -m32 -g -o typing_word_game typing_word_game.c
% ./typing_word_game
This is a game that tests typing speed
Type the following words:
word #1 is fox: foxy
Incorrect. Try again.
word #1 is fox: fo
Incorrect. Try again.
word #1 is fox: fox
word #2 is The: The
word #3 is brown: brown
word #4 is lazy: lazy
word #5 is jumped: jumped
word #6 is over: over
word #7 is quick: quick
word #8 is dog: dog
word #9 is the: the
Correct! Your time is: 20 sec 222855 usec
%
