From 40d4d279e41c336d5c4e9a1e07c7751bc76ecbfb Mon Sep 17 00:00:00 2001
From: Kirill Petrashin <kirill8201@yandex.ru>
Date: Sun, 29 Mar 2026 15:01:21 +0300
Subject: Add arg to just generate a BMP

---
 main.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index 5684e14..f876697 100644
--- a/main.c
+++ b/main.c
@@ -61,6 +61,8 @@ int main(int argc, char **argv) {
     size_t mheight = 10; /* Maze height */
 
     char is_maze = 0;
+    char bmp_only = 0;
+    char *bmp_filename = NULL;
     char anim = 0;
     int dirs = 8;
 
@@ -71,12 +73,13 @@ int main(int argc, char **argv) {
      *  -a to animate the pathfinding (get input after each step)
      *  -m {width}x{height} to give a maze of given size
      *  -f {filename} to load a map from the filename
+     *  -b {filename} to just generate a bitmap, no interface
      *  -4 for four directions
      *  -8 for eight directions */
     /* TODO: Argument to choose the algorithm */
     /* TODO: Argument to set seed */
     int opt;
-    while ((opt = getopt(argc, argv, ":am:f:48")) != -1) {
+    while ((opt = getopt(argc, argv, ":am:f:b:48")) != -1) {
         switch (opt) {
             case 'a': anim = 1; break;
             case 'm':
@@ -93,6 +96,10 @@ int main(int argc, char **argv) {
             case 'f':
                       map = file_plaintext_map(optarg, &width, &height, &start_pos, &end_pos);
                       break;
+            case 'b':
+                      bmp_only = 1;
+                      bmp_filename = optarg;
+                      break;
             case '4': dirs = 4; break;
             case '8': dirs = 8; break;
             case '?': error("Unknown option: %c\n", optopt);
@@ -116,7 +123,9 @@ int main(int argc, char **argv) {
 
     signal(SIGINT, sigint_handler);
 
-    init_ncurses();
+    if (!bmp_only) {
+        init_ncurses();
+    }
 
     int offset_x = 0, offset_y = 0;
 
@@ -127,6 +136,12 @@ int main(int argc, char **argv) {
     Path path = NULL;
     path = breadth_first_search_path(dirs, map, width, height, start_pos, end_pos, visited, anim);
 
+    if (bmp_only) {
+        map_to_bmp(map, width, height, start_pos, end_pos, path, visited, bmp_filename);
+        printf("Wrote the bmp to %s\n", bmp_filename);
+        exit(0);
+    }
+
     while (1) {
         draw_map(map, width, height, offset_x, offset_y, start_pos, end_pos, NULL, path, visited, NULL);
         char c = getch();
-- 
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