* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA."
*/
-#include <stdio.h>
-#include <stdlib.h>
+#include "word-game.h"
+
+#include <string.h>
#include <ctype.h>
#include <sys/time.h>
#include <time.h>
-#include <math.h>
-
-#include <readline/readline.h>
-#include <readline/history.h>
-
-#include "dict.h"
char *cube_faces[16] = {
"aaeeng", "abbjoo", "achops", "affkps",
char letters[4][4];
/* Private, transient state used by enumerate */
- trie_t *result_trie;
+ dict_t *results;
} board_t;
-int
+static int
rand_within (int num_values)
{
return (int) ((double) num_values * (rand() / (RAND_MAX + 1.0)));
}
-void
+static void
shuffle (int *array, int length)
{
int i, r, tmp;
}
}
-void
+static void
board_init (board_t *board)
{
int i;
board->letters[i / 4][i % 4] = cube_faces[cubes[i]][rand_within(6)];
}
-void
-board_print (board_t *board)
+/* ( 3 chars per cell
+ * x 4 cells per row
+ * + 1 newline per row
+ * ) x 4 rows per board
+ * + 1 terminator character
+ * = 53
+ */
+#define BOARD_STRING_MAX 53
+static void
+board_to_string (board_t *board,
+ char board_string[BOARD_STRING_MAX])
{
- int x, y;
char c;
+ int x, y;
+ char *s = &board_string[0];
- printf ("\n");
for (y = 0; y < 4; y++) {
for (x = 0; x < 4; x++) {
c = board->letters[y][x];
- printf (" %c%s", toupper (c),
- c == 'q' ? "u" : " ");
+ *s++ = ' ';
+ *s++ = toupper (c);
+ if (c == 'q')
+ *s++ = 'u';
+ else
+ *s++ = ' ';
}
- printf ("\n");
+ if (y != 3)
+ *s++ = '\n';
}
- printf ("\n");
+ *s = '\0';
}
#define SEEN_BIT(x, y) (1 << (4*(y)+(x)))
-void
+static void
board_enumerate (board_t *board,
int x,
int y,
int16_t seen,
- string_t *word,
- trie_t *dict_trie)
+ char *word,
+ dict_cursor_t dict_cursor)
{
char c;
int dx, dy;
+ if (dict_cursor == DICT_CURSOR_NIL)
+ return;
+
if (x < 0 || x >= 4 ||
y < 0 || y >= 4 ||
seen & SEEN_BIT (x, y))
seen |= SEEN_BIT (x, y);
c = board->letters[y][x];
- string_append_char (word, c);
- dict_trie = dict_trie->next[TRIE_CHAR_TO_INDEX (c)];
- if (dict_trie == NULL)
- goto BAIL0;
+ word[strlen (word)] = c;
+ dict_cursor = dict_cursor_next (dict_cursor, c);
if (c == 'q') {
- string_append_char (word, 'u');
- dict_trie = dict_trie->next[TRIE_CHAR_TO_INDEX ('u')];
- if (dict_trie == NULL)
- goto BAIL1;
+ word[strlen (word)] = 'u';
+ dict_cursor = dict_cursor_next (dict_cursor, 'u');
}
- if (dict_trie->flags & TRIE_FLAGS_IS_WORD)
- trie_add (board->result_trie, word->s);
+ if (DICT_ENTRY_IS_WORD (dict_cursor_resolve (dict_cursor)))
+ dict_add_word (board->results, word);
for (dy = -1; dy <= 1; dy++)
for (dx = -1; dx <= 1; dx++)
- board_enumerate (board, x + dx, y + dy, seen, word, dict_trie);
+ board_enumerate (board, x + dx, y + dy, seen, word, dict_cursor);
- BAIL1:
if (c == 'q')
- string_chop (word);
- BAIL0:
- string_chop (word);
+ word [strlen (word) - 1] = '\0';
+ word [strlen (word) - 1] = '\0';
}
-void
-board_solve (board_t *board, dict_t *dict, trie_t *solution)
+static void
+board_solve (board_t *board, dict_t *dict, dict_t *solution)
{
int x, y;
int16_t seen = 0;
- string_t word;
+ char word[18];
- board->result_trie = solution;
+ board->results = solution;
- string_init (&word);
+ memset (word, '\0', 18);
for (y = 0; y < 4; y++)
for (x = 0; x < 4; x++)
- board_enumerate (board, x, y, seen, &word, dict->trie);
-
- string_fini (&word);
+ board_enumerate (board, x, y, seen, word, dict_root (dict));
}
#define GAME_LENGTH (3 * 60)
int
main (void)
{
- dict_t dict;
+ dict_t dict, solution;
board_t board;
- trie_t *solution;
- struct timeval tv, tv_stop;
- int remaining, minutes, seconds;
- int found, missed;
- char prompt[7], *response;
- string_t word;
+ char board_string[BOARD_STRING_MAX];
+ struct timeval tv;
gettimeofday (&tv, NULL);
srand (tv.tv_sec ^ tv.tv_usec);
dict_init (&dict);
dict_add_words_from_file (&dict, "words.txt");
- board_init (&board);
- solution = trie_create ();
- board_solve (&board, &dict, solution);
+ board_init (&board);
+ board_to_string (&board, board_string);
- board_print (&board);
+ dict_init (&solution);
+ board_solve (&board, &dict, &solution);
- gettimeofday (&tv, NULL);
- tv_stop = tv;
- tv_stop.tv_sec += GAME_LENGTH;
- remaining = GAME_LENGTH;
- do {
- minutes = remaining / 60;
- seconds = remaining % 60;
- sprintf (prompt, "%02d:%02d ", minutes, seconds);
- response = readline (prompt);
- add_history (response);
- chomp (response);
- if (strlen (response) == 0) {
- board_print (&board);
- } else {
- trie_t *t;
- t = trie_find (solution, response);
- if (t && (t->flags & TRIE_FLAGS_IS_WORD)) {
- if (t->flags & TRIE_FLAGS_SEEN)
- printf ("(repeat)\n");
- else
- t->flags |= TRIE_FLAGS_SEEN;
- } else {
- t = trie_find (dict.trie, response);
- if (t && (t->flags & TRIE_FLAGS_IS_WORD))
- printf ("(a good word, but it's not in the puzzle)\n");
- else
- printf ("*** %s is not a word\n", response);
- }
- }
- free (response);
- gettimeofday (&tv, NULL);
- remaining = floor (0.5 + (tv_stop.tv_sec - tv.tv_sec) + (tv_stop.tv_usec - tv.tv_usec) / 1000000.0);
- minutes = remaining / 60;
- } while (remaining > 0);
-
- printf ("\nWords you found:\n");
- string_init (&word);
- found = trie_print_seen (solution, &word);
- string_fini (&word);
- printf ("\n");
-
- printf ("\nWords you missed:\n");
- string_init (&word);
- missed = trie_print_unseen (solution, &word);
- string_fini (&word);
- printf ("\n");
-
- printf ("\nYou found %d of %d words (%.2f%%)\n",
- found, found + missed,
- 100 * (double) found / (found + missed));
+ word_game_play (board_string, &dict, &solution, GAME_LENGTH);
+ dict_fini (&solution);
dict_fini (&dict);
return 0;
projects / wordgame / blobdiff