Added freeze/unfreeze grid functionality

[wordblah.git] / wordblox.h

diff --git a/wordblox.h b/wordblox.h
index 50033bc..bde57c3 100644 (file)
--- a/wordblox.h
+++ b/wordblox.h
@@ -31,6 +31,14 @@ typedef struct {
        bool grid_frozen;
 } Puzzle;
 
+int get_num ()
+{
+       char s[5];
+       fgets (s, 5, stdin);
+       int n = atoi (s);
+       return n;
+}
+
 /* Set the terminal colour */
 void set_color (enum COLOR fg, enum COLOR bg) {
        printf ("\x1B[%d;%dm", fg+30, bg+40);
@@ -41,6 +49,95 @@ void reset_color () {
        printf ("\x1B[0m");
 }
 
+/* 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;
+}
+
+/* unfreeze the grid - mak 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] = '#';
+                       /* 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) 
 {
@@ -90,6 +187,7 @@ Puzzle load_puzzle (const char* file) {
 /* display the puzzle */ 
 void print_puzzle (Puzzle *p) 
 {
+       printf ("\n");
        set_color (WHITE, CYAN);
        printf ("    ");
        for (int i = 0; i < p->grid_size; i ++)
@@ -108,10 +206,14 @@ void print_puzzle (Puzzle *p)
                        }
                        else 
                        {
-                               if (p->start_across_word[i][j] != -1) 
+                               if (p->start_across_word[i][j] != -1 || 
+                                       p->start_down_word[i][j] != -1) 
                                {
                                        set_color (BLUE, WHITE);
-                                       printf ("%2d", p->start_across_word[i][j]);     
+                                       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
                                {
@@ -126,6 +228,35 @@ void print_puzzle (Puzzle *p)
                }
                printf ("\n");
        }
+       /* print the clues if set */
+       if (p->grid_frozen == true) 
+       {
+               printf ("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)
+                               {
+                                       printf ("%d - %s; ", p->start_across_word[i][j], 
+                                                               p->clue_across[i][j]);
+                               }
+                       }
+               }
+               printf ("\nDOWN - 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)
+                               {
+                                       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 */
@@ -138,6 +269,23 @@ bool is_valid_word (const char *word)
        return true;
 }
 
+/* function set a clue for an across word */
+bool set_across_clue (Puzzle *p, String clue, int index) 
+{
+       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] == index)
+                       {
+                               strcpy (p->clue_across[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)