From b81cff9b9e51fd10f02f35737acba52ed04e4366 Mon Sep 17 00:00:00 2001
From: Gabriel Tofvesson <contact@w1zzrd.dev>
Date: Fri, 28 Feb 2020 23:48:00 +0100
Subject: [PATCH] Implement active status output in example

---
 main.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 64 insertions(+), 4 deletions(-)

diff --git a/main.c b/main.c
index d03ac64..744ec71 100644
--- a/main.c
+++ b/main.c
@@ -17,7 +17,6 @@
 #define CLEAR         "\033[2J"
 
 
-
 /**
  * How many boards to allocate by default for board spec
  * Average depth for highly complex boards is between 10 and 12
@@ -65,7 +64,14 @@ tables_ensure_depth (struct boards_table *board_spec, unsigned long long depth)
 }
 
 bool
-simplify (struct boards_table *board_spec, unsigned long long depth);
+simplify (
+  struct boards_table *board_spec,
+  unsigned long long depth
+#ifdef PRINT_STATUS
+  ,
+  unsigned long long *counter
+#endif
+);
 
 
 struct board_file
@@ -176,6 +182,16 @@ ansi_clear_screen ()
 }
 
 
+void
+ansi_cursor_show (bool show)
+{
+  if (show)
+    fputs("\e[?25h", stdout);
+  else
+    fputs("\e[?25l", stdout);
+}
+
+
 static void
 print_board (const struct board *board, const struct board *compare, unsigned whence_x, unsigned whence_y)
 {
@@ -251,8 +267,27 @@ first_potential_value (struct board_element *element, struct board *board, bool
  * Reduce away all elements on board with complexity=1 until none remain
  */
 bool
-simplify (struct boards_table *board_specs, unsigned long long depth)
+simplify (
+  struct boards_table *board_specs,
+  unsigned long long depth
+#ifdef PRINT_STATUS
+  ,
+  unsigned long long *counter
+#endif
+)
 {
+#ifdef PRINT_STATUS
+  if (((*counter) & PRINT_STATUS) == 0) {
+  ansi_set_cursor (0, 18);
+  printf ("Reducing... (%lx)", *counter);
+  }
+
+  if (((*counter) & PRINT_STATUS) == 0)
+    print_board (board_specs->board_specs[depth], board_specs->board_specs[0], 21, 0);
+
+  *counter += 1;
+#endif
+
   /* Get current table */
   struct board *board = board_specs->board_specs[depth];
 
@@ -307,7 +342,15 @@ simplify (struct boards_table *board_specs, unsigned long long depth)
                 continue;
 
               /* Found solution */
-              if (simplify (board_specs, depth + 1) && board_spec->complexity == 0)
+              if (
+                  simplify (
+                    board_specs,
+                    depth + 1
+#ifdef PRINT_STATUS
+                    ,
+                    counter
+#endif
+                  ) && board_spec->complexity == 0)
               {
                 board_copy (board_spec, board);
                 x = 9;
@@ -331,6 +374,8 @@ main (int argc, char **argv, char **env)
   if (file.fd == -1 || file.data == NULL)
     return -1;
 
+  ansi_cursor_show (false);
+
   /* Allocate board */
   struct board original;
 
@@ -355,17 +400,30 @@ main (int argc, char **argv, char **env)
   if (! board_is_valid (root_board))
   {
     puts ("Supplied board is not valid!");
+
+    ansi_cursor_show (true);
+    
     return 1;
   }
 
   ansi_set_cursor (0, 18);
   puts("Reducing...");
 
+
   /* Profiler start time */
   clock_t start_clk = clock ();
+
+#ifdef PRINT_STATUS
+  unsigned long long counter = 0;
   
+  simplify (&boards, 0, &counter);
+
+#else
+
   simplify (&boards, 0);
 
+#endif
+
   /* Profiler end time */
   clock_t end_clk = clock ();
 
@@ -374,5 +432,7 @@ main (int argc, char **argv, char **env)
   ansi_set_cursor (0, 18);
   printf ("Simplification took %Lf seconds\n", ((long double)(end_clk - start_clk))/CLOCKS_PER_SEC);
 
+  ansi_cursor_show (true);
+
   return 0;
 }