X-Git-Url: https://harishankar.org/repos/?p=wordblah.git;a=blobdiff_plain;f=wordblox.h;h=bde57c364d95e88728e9b74ded17db4ae047a87a;hp=50033bc897cc87150774719e0ed0ced70ab53c7d;hb=d29b37aa1b82dbd3c4baa55396521296f4a88ef4;hpb=3657c15588e4b2607d9225659f66158d92a85262

diff --git a/wordblox.h b/wordblox.h
index 50033bc..bde57c3 100644
--- 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)