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/*
* Copyright (C) 2015 Tomasz Kramkowski <tk@the-tk.com>
*
* This program is free software. It is licensed under version 3 of the
* GNU General Public License.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [http://www.gnu.org/licenses/].
*/
#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ALPHABET_CHARS 26
#define MAX_GUESS 5
enum state {
NONE,
WIN,
LOSS
};
int main(int argc, char **argv)
{
bool guessed[ALPHABET_CHARS] = {0}, in_secret[ALPHABET_CHARS] = {0};
char *secret;
int bad_guesses = 0, c;
size_t dest, length;
enum state state = NONE;
if (argc != 2) {
fprintf(stderr, "Usage: %s <word>\n", argv[0]);
return EXIT_FAILURE;
}
secret = argv[1];
dest = 0;
length = strlen(secret);
for (size_t i = 0; i < length; i++)
if (isalpha(secret[i]) || isspace(secret[i]))
secret[dest++] = toupper(secret[i]);
length = dest;
for (size_t i = 0; i < length; i++)
if (isalpha(secret[i]))
in_secret[secret[i] - 'A'] = true;
printf("Hangman\n=======\n\n");
for (size_t i = 0; i < length; i++)
if (isalpha(secret[i]) && !guessed[secret[i] - 'A'])
putchar('_');
else
putchar(secret[i]);
putchar('\n');
while ((c = getchar()) != EOF) {
if (!isalpha(c))
continue;
c = toupper(c);
if (guessed[c - 'A'])
goto print_state;
if (!in_secret[c - 'A']) {
bad_guesses++;
printf("Wrong!\n");
goto print_state;
}
guessed[c - 'A'] = true;
for (unsigned i = 0; i < ALPHABET_CHARS; i++)
if (in_secret[i] && !guessed[i])
goto print_state;
state = WIN;
break;
print_state:
for (size_t i = 0; i < length; i++)
if (isalpha(secret[i]) && !guessed[secret[i] - 'A'])
putchar('_');
else
putchar(secret[i]);
putchar('\n');
printf("You have %d guesses left.\n", MAX_GUESS - bad_guesses);
if (bad_guesses >= MAX_GUESS) {
state = LOSS;
break;
}
}
switch (state) {
case WIN:
printf("You won.\n");
break;
case LOSS:
printf("You lost, the secret word was: %s\n", secret);
break;
case NONE:
printf("Something weird happened.\n");
break;
}
}
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