wordblox.h

   1 #ifndef __WORDBLOX_H
   2 #define __WORDBLOX_H
   3
   4 #include "constantstrings.h"
   5
   6 #define MAX_PUZZLE_SIZE 20
   7 #define MAX_CLUE_LENGTH 150
   8
   9 /* Enum to define terminal colours */
  10 enum COLOR {
  11         BLACK = 0,
  12         RED= 1,
  13         GREEN=2,
  14         YELLOW=3,
  15         BLUE=4,
  16         MAGENTA=5,
  17         CYAN=6,
  18         WHITE=7
  19 };
  20
  21 typedef char String[MAX_CLUE_LENGTH];
  22
  23 /* The main puzzle struct type */
  24 typedef struct {
  25         char chars[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE];
  26         int start_across_word[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE];
  27         int start_down_word[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE];
  28         String clue_across[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE];
  29         String clue_down[MAX_PUZZLE_SIZE][MAX_PUZZLE_SIZE];
  30         int grid_size;
  31         bool grid_frozen;
  32 } Puzzle;
  33
  34 /* Set the terminal colour */
  35 void set_color (enum COLOR fg, enum COLOR bg) {
  36         printf ("\x1B[%d;%dm", fg+30, bg+40);
  37 }
  38
  39 /* Reset the terminal colour */
  40 void reset_color () {
  41         printf ("\x1B[0m");
  42 }
  43
  44 /* reset the entire grid */
  45 void init_puzzle (Puzzle *p, int grid_size)
  46 {
  47         p->grid_size = grid_size;
  48         p->grid_frozen = false;
  49         for (int i = 0; i < p->grid_size; i ++)
  50         {
  51                 for (int j = 0; j < p->grid_size; j ++)
  52                 {
  53                         p->chars[i][j] = ' ';
  54                         p->start_across_word[i][j] = -1;
  55                         p->start_down_word[i][j] = -1;
  56                         strcpy (p->clue_across[i][j], "");
  57                         strcpy (p->clue_down[i][j], "");
  58                 }
  59         }
  60 }
  61
  62 /* save the puzzle */
  63 void save_puzzle (Puzzle *puzzle, const char* file) {
  64         FILE *outfile;
  65         outfile = fopen (file, "wb");
  66         if (outfile == NULL)
  67         {
  68                 fprintf (stderr, "%s\n", ERROR_WRITING_FILE);
  69                 exit (1);
  70         }
  71         fwrite (puzzle, sizeof (*puzzle), 1, outfile);
  72         fclose (outfile);
  73 }
  74
  75 /* read the puzzle */
  76 Puzzle load_puzzle (const char* file) {
  77         FILE *infile;
  78         Puzzle p;
  79         infile = fopen (file, "rb");
  80         if (infile == NULL)
  81         {
  82                 fprintf (stderr, "%s\n", ERROR_READING_FILE);
  83                 exit (1);
  84         }
  85         fread (&p, sizeof(p), 1, infile);
  86         fclose (infile);
  87         return p;
  88 }
  89
  90 /* display the puzzle */
  91 void print_puzzle (Puzzle *p)
  92 {
  93         set_color (WHITE, CYAN);
  94         printf ("    ");
  95         for (int i = 0; i < p->grid_size; i ++)
  96                 printf ("%3d", i);
  97         reset_color ();
  98         printf("\n");
  99         for (int i = 0; i < p->grid_size; i ++)
 100         {
 101                 set_color (WHITE, CYAN);
 102                 printf ("%3d ", i);
 103                 for (int j = 0; j < p->grid_size; j ++)
 104                 {
 105                         if (p->chars[i][j] == '#') {
 106                                 set_color (WHITE, BLACK);
 107                                 printf ("   ");
 108                         }
 109                         else
 110                         {
 111                                 if (p->start_across_word[i][j] != -1)
 112                                 {
 113                                         set_color (BLUE, WHITE);
 114                                         printf ("%2d", p->start_across_word[i][j]);
 115                                 }
 116                                 else
 117                                 {
 118                                         set_color (BLACK, WHITE);
 119                                         printf ("  ");
 120                                 }
 121
 122                                 set_color (BLACK, WHITE);
 123                                 printf ("%c", p->chars[i][j]);
 124                         }
 125                         reset_color ();
 126                 }
 127                 printf ("\n");
 128         }
 129 }
 130
 131 /* function to check if a word is valid or not */
 132 bool is_valid_word (const char *word)
 133 {
 134         for (int i = 0; i < strlen (word); i ++)
 135                 if (! isalpha (word[i]))
 136                         return false;
 137
 138         return true;
 139 }
 140
 141 /* function to print a menu */
 142 void print_menu (enum COLOR fg, enum COLOR bg, const char* title,
 143                                         char **items, int num_items, int padding)
 144 {
 145                 /* clear screen */
 146                 printf ("\e[1;1H\e[2J");
 147                 set_color (fg, bg);
 148                 printf ("\u2554");
 149                 for (int i = 0; i < padding; i ++)
 150                         printf ("\u2550");
 151                 printf ("\u2557");
 152                 reset_color (); printf ("\n");
 153                 set_color (fg, bg);
 154                 printf ("\u2551%-*s\u2551", padding, title);
 155                 reset_color (); printf ("\n");
 156                 set_color (fg, bg);
 157                 printf ("\u2560");
 158                 for (int i = 0; i < padding; i ++)
 159                         printf ("\u2550");
 160                 printf ("\u2563");
 161                 reset_color (); printf ("\n");
 162                 for (int i = 0; i < num_items; i ++)
 163                 {
 164                         set_color (fg, bg);
 165                         printf ("\u2551%-*s\u2551", padding, items[i]);
 166                         reset_color (); printf ("\n");
 167                 }
 168                 set_color (fg, bg);
 169                 printf ("\u255A");
 170                 for (int i = 0; i < padding; i ++)
 171                         printf ("\u2550");
 172                 printf ("\u255D");
 173                 reset_color (); printf ("\n");
 174 }
 175
 176 #endif