Add option to not pathfind on start

1 files changed, 6 insertions, 2 deletions

diff --git a/main.c b/main.c
index 98093dc..a88825a 100644
--- a/main.c
+++ b/main.c
@@ -70,6 +70,7 @@ int main(int argc, char **argv) {
     char is_maze = 0;
     char bmp_only = 0;
     char *bmp_filename = NULL;
+    char pathfind_on_start = 1;
     char anim = 0;
     int dirs = 8;
 
@@ -79,16 +80,18 @@ int main(int argc, char **argv) {
      * Currently supported:
      *  -a to animate the pathfinding (get input after each step)
      *  -d for Dijkstra
+     *  -n to not pathfind on start
      *  -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 */
     int opt;
-    while ((opt = getopt(argc, argv, ":adm:f:b:48")) != -1) {
+    while ((opt = getopt(argc, argv, ":adnm:f:b:48")) != -1) {
         switch (opt) {
             case 'a': anim = 1; break;
             case 'd': path_func = &dijkstra_path; break;
+            case 'n': pathfind_on_start = 0; break;
             case 'm':
                       if (sscanf(optarg, "%zux%zu", &mwidth, &mheight) != 2) error("Wrong maze size string in argument\n");
                       is_maze = 1;
@@ -138,7 +141,8 @@ int main(int argc, char **argv) {
 
     char **visited = visited_new(width, height);
     Path path = NULL;
-    path = path_func(dirs, map, cell_costs, width, height, start_pos, end_pos, visited, anim);
+    if (pathfind_on_start)
+        path = path_func(dirs, map, cell_costs, 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);