X-Git-Url: https://harishankar.org/repos/?p=wordblah.git;a=blobdiff_plain;f=wordblox.h;fp=wordblox.h;h=0000000000000000000000000000000000000000;hp=7519ff4d067d10b96e84acac13c8c45107edda97;hb=2aac9fd96329b27dffec6534a042cfbe045f3a11;hpb=7defe51e8a1da9feec6319defa7c906fcb735726 diff --git a/wordblox.h b/wordblox.h deleted file mode 100644 index 7519ff4..0000000 --- a/wordblox.h +++ /dev/null @@ -1,1032 +0,0 @@ -#ifndef __WORDBLOX_H -#define __WORDBLOX_H -#define _XOPEN_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "constantstrings.h" - -#define MAX_PUZZLE_SIZE 25 -#define MAX_CLUE_LENGTH 150 -#define GRID_PIXELS 37 - -/* Enum to define terminal colours */ -enum COLOR { - BLACK = 0, - RED= 1, - GREEN=2, - YELLOW=3, - BLUE=4, - MAGENTA=5, - CYAN=6, - WHITE=7 -}; - -enum ATTR { - NORMAL = 23, - BOLD=1 -}; - -enum ORIENTATION { - ACROSS=1, - DOWN=2 -}; - -/* for use with the player */ -enum DIRECTION { - DIR_FORWARD = 1, - DIR_BACK = -1 -}; - -typedef char String[MAX_CLUE_LENGTH]; - -/* The main puzzle struct type */ -typedef struct { - char chars[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - int start_across_word[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - int start_down_word[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - String clue_across[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - String clue_down[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - int grid_size; - bool grid_frozen; - char hashed_master_password[256]; - char hashed_solution_password[256]; -} Puzzle; - -/* The player data struct type - for the player app */ -typedef struct { - Puzzle puzzle; - char filename[65535]; - bool is_loaded; - char char_ans[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE]; - int cur_row; - int cur_col; - bool solution_revealed; - enum ORIENTATION current_movement; -} MainPlayerData; - -/* compute the hash of a password */ -void digest_message(const unsigned char *message, - size_t message_len, unsigned char **digest, unsigned int *digest_len) -{ - EVP_MD_CTX *mdctx; - - if((mdctx = EVP_MD_CTX_new()) == NULL) - goto err; - - if(1 != EVP_DigestInit_ex(mdctx, EVP_sha256(), NULL)) - goto err; - - if(1 != EVP_DigestUpdate(mdctx, message, message_len)) - goto err; - - if((*digest = (unsigned char *) - OPENSSL_malloc(EVP_MD_size(EVP_sha256()))) == NULL) - goto err; - - if(1 != EVP_DigestFinal_ex(mdctx, *digest, digest_len)) - goto err; - - EVP_MD_CTX_free(mdctx); - return; -err: - EVP_MD_CTX_free(mdctx); - ERR_print_errors_fp(stderr); - exit (2); -} - -/* convert the hashed binary password to hexadecimal representation and - free the hashed binary password */ -void to_hexadecimal (char *hex, unsigned char *binary_pwd, unsigned int len) -{ - char buf[3]; - /* keep reference to beginning of the hashed password */ - unsigned char *binary_pw_begin = binary_pwd; - for (int i = 0; i < len; i ++) - { - sprintf (buf, "%02x", (*binary_pwd)&0xff); - strcat (hex, buf); - binary_pwd ++; - } - /* free the hashed password */ - OPENSSL_free (binary_pw_begin); -} - -/* get a number from the user */ -int get_num () -{ - char s[5]; - fgets (s, 5, stdin); - int n = atoi (s); - return n; -} - -/* verify solution password */ -bool verify_solution_password (Puzzle *p, const char* password) -{ - /* no password set */ - if (strcmp (p->hashed_solution_password, "\0") == 0) - return true; - - /* hash the user input password and compare it with the stored password */ - unsigned char* hashed_sol_password; - unsigned int len; - digest_message ((const unsigned char *)password, strlen(password), - &hashed_sol_password, &len); - char hashed_hex_pwd[256] = { (char) NULL }; - to_hexadecimal (hashed_hex_pwd, hashed_sol_password, len); - - if (strcmp (p->hashed_solution_password, hashed_hex_pwd) == 0) - return true; - - return false; -} - - -/* verify master password */ -bool verify_master_password (Puzzle *p, const char* password) -{ - /* no password set */ - if (strcmp (p->hashed_master_password, "\0") == 0) - return true; - - /* hash the user input password and compare it with the stored password */ - unsigned char* hashed_mas_password; - unsigned int len; - digest_message ((const unsigned char *)password, strlen(password), - &hashed_mas_password, &len); - char hashed_hex_pwd[256] = { (char) NULL }; - to_hexadecimal (hashed_hex_pwd, hashed_mas_password, len); - - if (strcmp (p->hashed_master_password, hashed_hex_pwd) == 0) - return true; - - return false; -} - -/* Set or reset solution password for puzzle */ -void set_solution_password (Puzzle *p, const char *password) -{ - /* if it is a null string, reset the password */ - if (strcmp (password, "\0") == 0) - strcpy (p->hashed_solution_password, "\0"); - else - { - - unsigned char* hashedpwd; - unsigned int len; - digest_message ((const unsigned char *)password, strlen(password), - &hashedpwd, &len); - /* the hashedpwd contains binary data - we will convert it to - hexadecimal data and store in file */ - - to_hexadecimal (p->hashed_solution_password, hashedpwd, len); - } -} - -/* Set or reset master password for puzzle */ -void set_master_password (Puzzle *p, const char *password) -{ - /* if it is a null string, reset the password */ - if (strcmp (password, "\0") == 0) - strcpy (p->hashed_master_password, "\0"); - else - { - - unsigned char* hashedpwd; - unsigned int len; - digest_message ((const unsigned char *)password, strlen(password), - &hashedpwd, &len); - /* the hashedpwd contains binary data - we will convert it to - hexadecimal data and store in file */ - - to_hexadecimal (p->hashed_master_password, hashedpwd, len); - } -} - -/* Output the clues to text file */ -void export_clues (Puzzle *p, const char *filename) -{ - FILE *outfile = fopen (filename, "w"); - if (outfile == NULL) - { - fprintf (stderr, "%s\n", ERROR_WRITING_FILE); - exit (1); - } - /* first the across clues */ - fprintf (outfile, "ACROSS CLUES\n"); - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (p->start_across_word[i][j] != -1) - fprintf (outfile, "%d - %s\n", p->start_across_word[i][j], - p->clue_across[i][j]); - } - } - /* now the down clues */ - fprintf (outfile, "DOWN CLUES\n"); - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (p->start_down_word[i][j] != -1) - fprintf (outfile, "%d - %s\n", p->start_down_word[i][j], - p->clue_down[i][j]); - } - } - fclose (outfile); -} - -/* Output the grid to image - if answerkey is true export filled grid */ -void export_grid_image (Puzzle *p, const char *filename, bool answerkey) -{ - int img_size = p->grid_size * GRID_PIXELS; - FILE * outfile = fopen (filename, "wb"); - if (outfile == NULL) - { - fprintf (stderr, "%s\n", ERROR_WRITING_FILE); - exit (1); - } - - gdImagePtr img = gdImageCreate (img_size, img_size); - gdImageColorAllocate (img, 255,255,255); - int black = gdImageColorAllocate (img, 0, 0, 0); - int blue = gdImageColorAllocate (img, 0, 0, 216); - gdFontPtr sm_fnt = gdFontGetMediumBold (); - gdFontPtr lg_fnt = gdFontGetGiant (); - - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j++) - { - /* if it is a block, draw the black square */ - if (p->chars[i][j] == '#') - gdImageFilledRectangle (img, j*GRID_PIXELS, i*GRID_PIXELS, - j*GRID_PIXELS+GRID_PIXELS, - i*GRID_PIXELS+GRID_PIXELS,black); - else - { - /* draw a regular square */ - gdImageRectangle (img, j*GRID_PIXELS, i*GRID_PIXELS, - j*GRID_PIXELS+GRID_PIXELS, - i*GRID_PIXELS+GRID_PIXELS, black); - - /* print the numers, if it is either start across word or - a down word */ - if (p->start_across_word[i][j] != -1 || - p->start_down_word[i][j] != -1) - { - if (p->start_across_word[i][j] != -1) - { - char str[5]; - sprintf (str, "%d", p->start_across_word[i][j]); - gdImageString (img, sm_fnt, j*GRID_PIXELS+2, - i*GRID_PIXELS+2, - (unsigned char *)str, blue); - } - else - { - char str[5]; - sprintf (str, "%d", p->start_down_word[i][j]); - gdImageString (img, sm_fnt, j*GRID_PIXELS+2, - i*GRID_PIXELS+2, - (unsigned char *)str, blue); - } - } - /* if answerkey is true, draw the character in the cell */ - if (answerkey) - { - gdImageChar (img, lg_fnt, j*GRID_PIXELS+15, - i*GRID_PIXELS+10, p->chars[i][j], black); - } - } - } - } - - gdImagePng (img, outfile); - gdImageDestroy (img); - fclose (outfile); -} - -/* Set the terminal colour */ -void set_color (enum COLOR fg, enum COLOR bg, enum ATTR at) { - printf ("\x1B[%d;%d;%dm", fg+30, bg+40, at); -} - -/* Reset the terminal colour */ -void reset_color () { - printf ("\x1B[0m"); -} - -/* check if the prev row has a block or not */ -bool prev_row_block (Puzzle *p, int r, int c) -{ - if (r == 0) - return true; - if (p->chars[r-1][c] == '#') - return true; - return false; -} - -/* check if the next row has a block or not */ -bool next_row_block (Puzzle *p, int r, int c) -{ - if (r == p->grid_size-1) - return true; - if (p->chars[r+1][c] == '#') - return true; - return false; -} - -/* check if the prev col has a block or not */ -bool prev_col_block (Puzzle *p, int r, int c) -{ - if (c == 0) - return true; - if (p->chars[r][c-1] == '#') - return true; - return false; -} - -/* check if the next col has a block or not */ -bool next_col_block (Puzzle *p, int r, int c) -{ - if (c == p->grid_size - 1) - return true; - if (p->chars[r][c+1] == '#') - return true; - return false; -} - -/* check if previous row is blank or not */ -bool prev_row_blank (Puzzle *p, int r, int c) -{ - if (r == 0) return true; - if (p->chars[r-1][c] == ' ' || p->chars[r-1][c] == '#') return true; - return false; -} -/* check if next row is blank or not */ -bool next_row_blank (Puzzle *p, int r, int c) -{ - if (r == p->grid_size - 1) return true; - if (p->chars[r+1][c] == ' ' || p->chars[r+1][c] == '#') return true; - return false; -} -/* check if previous col is blank or not */ -bool prev_col_blank (Puzzle *p, int r, int c) -{ - if (c == 0) return true; - if (p->chars[r][c-1] == ' ' || p->chars[r][c-1] == '#') return true; - return false; -} -/* check if the next col is blank or not */ -bool next_col_blank (Puzzle *p, int r, int c) -{ - if (c == p->grid_size -1) return true; - if (p->chars[r][c+1] == ' ' || p->chars[r][c+1] == '#') return true; - return false; -} - -/* set the current row/col to the beginning of word index (across or down) */ -void set_selection_to_word_start (MainPlayerData *app_data, - enum ORIENTATION orient, int word_index) -{ - for (int i = 0; i < app_data->puzzle.grid_size; i ++) - { - for (int j = 0; j < app_data->puzzle.grid_size; j ++) - { - if (orient == ACROSS && - app_data->puzzle.start_across_word[i][j] == word_index) - { - app_data->current_movement = ACROSS; - app_data->cur_row = i; - app_data->cur_col = j; - break; - } - else if (orient == DOWN && - app_data->puzzle.start_down_word[i][j] == word_index) - { - app_data->current_movement = DOWN; - app_data->cur_row = i; - app_data->cur_col = j; - break; - } - } - } -} - -/* unfreeze the grid - make editing possible to change words */ -void unfreeze_puzzle (Puzzle *p) -{ - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (p->chars[i][j] == '#') - p->chars[i][j] = ' '; - - p->start_across_word[i][j] = -1; - p->start_down_word[i][j] = -1; - } - } - p->grid_frozen = false; -} - -/* freeze the grid - make editing impossible because it finalizes the - across and down words in the grid */ -void freeze_puzzle (Puzzle *p) -{ - int word_num = 1; - bool across_word_start, down_word_start; - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j++) - { - across_word_start = false; - down_word_start = false; - /* if it is a blank cell - cover it with a block */ - if (p->chars[i][j] == ' ' || p->chars[i][j] == '#') - p->chars[i][j] = '#'; - /* it is not a blank cell - check all possibilities */ - else - { - bool prev_row = prev_row_blank (p, i, j); - bool next_row = next_row_blank (p, i, j); - bool prev_col = prev_col_blank (p, i, j); - bool next_col = next_col_blank (p, i, j); - if (prev_row && ! next_row) - down_word_start = true; - if (prev_col && ! next_col) - across_word_start = true; - } - - if (across_word_start == true) - p->start_across_word[i][j] = word_num; - else - p->start_across_word[i][j] = -1; - if (down_word_start == true) - p->start_down_word[i][j] = word_num; - else - p->start_down_word[i][j] = -1; - if (across_word_start == true || down_word_start == true) - word_num ++; - } - } - p->grid_frozen = true; -} - -/* reset the entire grid */ -void init_puzzle (Puzzle *p, int grid_size) -{ - p->grid_size = grid_size; - p->grid_frozen = false; - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - p->chars[i][j] = ' '; - p->start_across_word[i][j] = -1; - p->start_down_word[i][j] = -1; - strcpy (p->clue_across[i][j], ""); - strcpy (p->clue_down[i][j], ""); - } - } - strcpy (p->hashed_master_password, "\0"); - strcpy (p->hashed_solution_password, "\0"); - -} - -/* save the puzzle to a file */ -void save_puzzle (Puzzle *puzzle, const char* file) -{ - FILE *outfile; - /* First output the uncompressed contents to a temp file */ - outfile = tmpfile (); - if (outfile == NULL) - { - fprintf (stderr, "%s\n", ERROR_WRITING_FILE); - exit (1); - } - /* grid size is the first field */ - fprintf (outfile, "%d\n", puzzle->grid_size); - /* whether grid is frozen or not */ - fprintf (outfile, "%d\n", puzzle->grid_frozen); - /* the hashed password */ - fprintf (outfile, "%s\n", puzzle->hashed_master_password); - /* the hashed_solution_password */ - fprintf (outfile, "%s\n", puzzle->hashed_solution_password); - - /* First output the grid characters columns/rows */ - for (int i = 0; i < puzzle->grid_size; i ++) - { - for (int j = 0; j < puzzle->grid_size; j ++) - fprintf (outfile, "%c", puzzle->chars[i][j]); - fprintf (outfile, "\n"); - } - - /* Next output the start across/down numbers */ - for (int i = 0; i < puzzle->grid_size; i ++) - { - for (int j = 0; j < puzzle->grid_size; j++) - { - fprintf (outfile, "%d ", puzzle->start_across_word[i][j]); - fprintf (outfile, "%d ", puzzle->start_down_word[i][j]); - } - fprintf (outfile, "\n"); - } - - /* Output the across clues */ - fprintf (outfile, "ACROSS\n"); - /* Search the grid for across words */ - for (int i = 0; i < puzzle->grid_size; i ++) - { - for (int j = 0; j < puzzle->grid_size; j++) - { - /* if it is an across word, then put the word index followed by - tab character (as separator) and the clue */ - if (puzzle->start_across_word[i][j] != -1) - fprintf (outfile, "%d\t%s\n", puzzle->start_across_word[i][j], - puzzle->clue_across[i][j]); - } - } - - /* Output the down clues */ - fprintf (outfile, "DOWN\n"); - /* Search the grid for down words */ - for (int i = 0; i < puzzle->grid_size; i ++) - { - for (int j = 0; j < puzzle->grid_size; j++) - { - /* same as across word, put the word index followed by the tab - character and then the clue */ - if (puzzle->start_down_word[i][j] != -1) - fprintf (outfile, "%d\t%s\n", puzzle->start_down_word[i][j], - puzzle->clue_down[i][j]); - } - } - - /* Flush the buffer and rewind to beginning - to read and save into - gzip compressed file */ - fflush (outfile); - fseek (outfile, 0, 0); - - /* now compress the file and save it to destination file */ - gzFile outdestfile = gzopen (file, "wb"); - if (outdestfile == NULL) - { - fprintf (stderr, "%s\n", ERROR_WRITING_FILE); - fclose (outfile); - exit (1); - } - char buf[128]; - int num = fread (buf, sizeof(char), sizeof(char)*128, outfile); - while (num > 0) - { - int res = gzwrite (outdestfile, buf, num*sizeof(char) ); - if (res == 0) - { - fprintf (stderr, "%s %s\n", ERROR_WRITING_FILE, COMPRESSED); - fclose (outfile); - exit (1); - } - num = fread (buf, sizeof(char), sizeof(char)*128, outfile); - } - gzclose (outdestfile); - fclose (outfile); - -} - -/* read the puzzle from a file */ -Puzzle load_puzzle (const char* file) -{ - /* First open the GZip file */ - gzFile insourcefile = gzopen (file, "rb"); - if (insourcefile == NULL) - { - fprintf (stderr, "%s %s\n", ERROR_READING_FILE, COMPRESSED); - exit (1); - } - /* Open a temporary file to uncompress the contents */ - FILE *infile = tmpfile (); - if (infile == NULL) - { - fprintf (stderr, "%s\n", ERROR_READING_FILE); - exit (1); - } - /* Put the uncompressed content to the temp file */ - char buf[128]; - int num = 0; - num = gzread (insourcefile, buf, 128); - while (num > 0) - { - int res = fwrite (buf, 1, num, infile); - if (res == 0) - { - fprintf (stderr, "%s\n", ERROR_READING_FILE); - fclose (infile); - gzclose (insourcefile); - exit (1); - } - num = gzread (insourcefile, buf, 128); - } - /* Close the gzip file */ - gzclose (insourcefile); - /* Flush the temp file buffer and rewind to beginning */ - fflush (infile); - fseek (infile, 0, 0); - - /* Read the temporary file contents to the structure Puzzle */ - Puzzle p; - char line[MAX_CLUE_LENGTH+10]; - fgets (line, MAX_CLUE_LENGTH + 10, infile); - p.grid_size = atoi (line); - fgets (line, MAX_CLUE_LENGTH + 10, infile); - p.grid_frozen = atoi (line) == 0 ? false : true ; - fgets (line, MAX_CLUE_LENGTH + 10, infile); - if (strlen (line) != 1) - strcpy (p.hashed_master_password, strtok (line, "\n")); - else - strcpy (p.hashed_master_password, "\0"); - fgets (line, MAX_CLUE_LENGTH + 10, infile); - if (strlen (line) != 1) - strcpy (p.hashed_solution_password, strtok (line, "\n")); - else - strcpy (p.hashed_solution_password, "\0"); - - /* read each character of the grid */ - for (int i = 0; i < p.grid_size; i ++ ) - { - fgets (line, MAX_CLUE_LENGTH + 10, infile); - for (int j = 0; j < p.grid_size; j ++) - p.chars[i][j] = line[j]; - } - /* read the word numbers */ - for (int i = 0; i < p.grid_size; i ++) - { - fgets (line, MAX_CLUE_LENGTH + 10, infile); - char *token = strtok (line, " "); - for (int j = 0; j < p.grid_size; j ++) - { - if (token != NULL) - p.start_across_word[i][j] = atoi (token); - token = strtok (NULL, " "); - if (token != NULL) - p.start_down_word[i][j] = atoi (token); - token = strtok (NULL, " "); - } - } - /* read the clues */ - fgets (line, MAX_CLUE_LENGTH + 10, infile); - - /* across clues */ - char clues[100][MAX_CLUE_LENGTH]; - int word_num[100]; - int c = 0; - /* first read the across clues from file */ - while (1) - { - fgets (line, MAX_CLUE_LENGTH + 10, infile); - /* if reached the end of across clues */ - if (strcmp (line, "DOWN\n") == 0) - break; - word_num[c] = atoi (strtok (line, "\t")); - char *cl = strtok (NULL, "\n"); - if (cl != NULL) - strcpy (clues[c], cl); - else - strcpy (clues[c], "\0"); - c++; - } - /* set the clue to the correct cell in grid */ - for (int i = 0; i < p.grid_size; i ++) - { - for (int j = 0; j < p.grid_size; j ++) - { - for (int r = 0; r < c; r ++) - if (p.start_across_word[i][j] == word_num[r]) - strcpy (p.clue_across[i][j], clues[r]); - } - } - - /* down clues */ - c = 0; - while (fgets (line, MAX_CLUE_LENGTH + 10, infile)) - { - word_num[c] = atoi (strtok (line, "\t")); - char* cl = strtok (NULL, "\n"); - if (cl != NULL) - strcpy (clues[c], cl); - else - strcpy (clues[c], "\0"); - c++; - } - for (int i = 0; i < p.grid_size; i ++) - { - for (int j = 0; j < p.grid_size; j ++) - { - for (int r = 0; r < c; r ++) - if (p.start_down_word[i][j] == word_num[r]) - strcpy (p.clue_down[i][j], clues[r]); - } - } - - fclose (infile); - return p; -} - -/* display the puzzle */ -void print_puzzle (Puzzle *p) -{ - printf ("\n"); - set_color (WHITE, CYAN, NORMAL); - printf (" "); - for (int i = 0; i < p->grid_size; i ++) - printf ("%3d", i); - reset_color (); - printf("\n"); - for (int i = 0; i < p->grid_size; i ++) - { - set_color (WHITE, CYAN, NORMAL); - printf ("%3d ", i); - for (int j = 0; j < p->grid_size; j ++) - { - if (p->chars[i][j] == '#') { - set_color (WHITE, BLACK, NORMAL); - printf (" "); - } - else - { - if (p->start_across_word[i][j] != -1 || - p->start_down_word[i][j] != -1) - { - set_color (BLUE, WHITE, NORMAL); - if (p->start_across_word[i][j] != -1) - printf ("%-2d", p->start_across_word[i][j]); - else - printf ("%-2d", p->start_down_word[i][j]); - } - else - { - set_color (BLACK, WHITE,NORMAL); - printf (" "); - } - - set_color (BLACK, WHITE, BOLD); - printf ("%c", p->chars[i][j]); - } - reset_color (); - } - printf ("\n"); - } - /* print the clues if set */ - if (p->grid_frozen == true) - { - printf ("\x1B[1mACROSS - CLUES\x1B[0m\n"); - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (p->start_across_word[i][j] != -1) - { - printf ("%d - %s; ", p->start_across_word[i][j], - p->clue_across[i][j]); - } - } - } - printf ("\n\x1B[1mDOWN - CLUES\x1B[0m\n"); - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (p->start_down_word[i][j] != -1) - { - printf ("%d - %s; ", p->start_down_word[i][j], - p->clue_down[i][j]); - } - } - } - printf ("\n"); - } -} - -/* function to check if a word is valid or not */ -char* is_valid_word (char *word) -{ - if (word == NULL || strlen(word) == 0) - return NULL; - for (int i = 0; i < strlen (word) - 1; i ++) - if (! isalpha (word[i])) - return NULL; - - return strtok (word, "\n"); -} - - -/* function to set a clue for an across word */ -bool set_clue (Puzzle *p, String clue, int index, enum ORIENTATION order) -{ - for (int i = 0; i < p->grid_size; i ++) - { - for (int j = 0; j < p->grid_size; j ++) - { - if (order == ACROSS) - { - if (p->start_across_word[i][j] == index) - { - strcpy (p->clue_across[i][j], clue); - return true; - } - } - else if (order == DOWN) - { - if (p->start_down_word[i][j] == index) - { - strcpy (p->clue_down[i][j], clue); - return true; - } - } - } - } - return false; -} - -/* function to print a menu */ -void print_menu (enum COLOR fg, enum COLOR bg, const char* title, - char **items, int num_items, int padding) -{ - /* clear screen */ - printf ("\e[1;1H\e[2J"); - set_color (fg, bg, NORMAL); - printf ("\u2554"); - for (int i = 0; i < padding; i ++) - printf ("\u2550"); - printf ("\u2557"); - reset_color (); printf ("\n"); - set_color (fg, bg, NORMAL); - printf ("\u2551"); - set_color (fg, bg, BOLD); - printf ("%-*s", padding, title); - reset_color (); - set_color (fg, bg, NORMAL); - printf ("\u2551"); - reset_color (); printf ("\n"); - set_color (fg, bg, NORMAL); - printf ("\u2560"); - for (int i = 0; i < padding; i ++) - printf ("\u2550"); - printf ("\u2563"); - reset_color (); printf ("\n"); - for (int i = 0; i < num_items; i ++) - { - set_color (fg, bg, NORMAL); - printf ("\u2551%-*s\u2551", padding, items[i]); - reset_color (); printf ("\n"); - } - set_color (fg, bg, NORMAL); - printf ("\u255A"); - for (int i = 0; i < padding; i ++) - printf ("\u2550"); - printf ("\u255D"); - reset_color (); printf ("\n"); -} - -/* reset the player data, loading from the puzzle file */ -void reset_player_data (MainPlayerData *app_data, const char *filename) -{ - app_data->puzzle = load_puzzle (filename); - - app_data->is_loaded = app_data->puzzle.grid_frozen; - app_data->cur_col = -1; - app_data->cur_row = -1; - app_data->solution_revealed = false; - strcpy (app_data->filename, filename); - /* reset the answer keys */ - for (int i = 0; i < app_data->puzzle.grid_size; i ++) - for (int j = 0; j < app_data->puzzle.grid_size; j ++) - app_data->char_ans[i][j] = ' '; - -} - -/* save the user grid to a file */ -void save_user_data (MainPlayerData *app_data, const char *filename) -{ - FILE *outfile; - outfile = fopen (filename, "wb"); - if (outfile == NULL) - { - fprintf (stderr, ERROR_WRITING_FILE); - return; - } - fprintf (outfile, "%s\n", app_data->filename); - for (int i = 0; i < app_data->puzzle.grid_size; i ++) - { - for (int j = 0; j < app_data->puzzle.grid_size; j ++) - fprintf (outfile, "%c", app_data->char_ans[i][j]); - fprintf (outfile, "\n"); - } - - fclose (outfile); -} - -/* load the user grid from a file */ -void load_user_data (MainPlayerData *app_data, const char *filename) -{ - FILE *infile; - infile = fopen (filename, "rb"); - if (infile == NULL) - { - fprintf (stderr, "%s\n", ERROR_READING_FILE); - return; - } - - char puzzle_file_name[65535]; - fgets (puzzle_file_name, 65535, infile); - reset_player_data (app_data, strtok (puzzle_file_name, "\n")); - - char line[MAX_PUZZLE_SIZE+10]; - for (int i = 0; i < app_data->puzzle.grid_size; i ++) - { - fgets (line, MAX_PUZZLE_SIZE+10, infile); - for (int j = 0; j < app_data->puzzle.grid_size; j ++) - app_data->char_ans[i][j] = line[j]; - - } - fclose (infile); -} - -/* in the player app, move the current selection index left or right */ -void move_current_col (MainPlayerData *app_data, enum DIRECTION dir) -{ - int r = app_data->cur_row; - int c = app_data->cur_col; - if (dir == DIR_FORWARD) - { - c ++; - while (c < app_data->puzzle.grid_size) - { - if (app_data->puzzle.chars[r][c] == '#') - c ++; - else - break; - } - if (c < app_data->puzzle.grid_size) - app_data->cur_col = c; - } - else - { - c --; - while (c >= 0) - { - if (app_data->puzzle.chars[r][c] == '#') - c --; - else - break; - } - if (c >= 0) - app_data->cur_col = c; - } -} - -/* in the player app move the current selection index up or down */ -void move_current_row (MainPlayerData *app_data, enum DIRECTION dir) -{ - int r = app_data->cur_row; - int c = app_data->cur_col; - if (dir == DIR_FORWARD) - { - r ++; - while (r < app_data->puzzle.grid_size) - { - if (app_data->puzzle.chars[r][c] == '#') - r ++; - else - break; - } - if (r < app_data->puzzle.grid_size) - app_data->cur_row = r; - } - else - { - r --; - while (r >= 0) - { - if (app_data->puzzle.chars[r][c] == '#') - r --; - else - break; - } - if (r >= 0) - app_data->cur_row = r; - } -} - -#endif