*delwall now give a friendly warning to remind non-existent wall

3 files changed, 12 insertions, 5 deletions

diff --git a/src/map/map.c b/src/map/map.c
index 780e6f535..90b304865 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -3166,13 +3166,13 @@ void map_iwall_get(struct map_session_data *sd)
 	dbi_destroy(iter);
 }
 
-void map_iwall_remove(const char *wall_name)
+bool map_iwall_remove(const char *wall_name)
 {
 	struct iwall_data *iwall;
 	int16 i, x1, y1;
 
 	if( (iwall = (struct iwall_data *)strdb_get(map->iwall_db, wall_name)) == NULL )
-		return; // Nothing to do
+		return false;
 
 	for( i = 0; i < iwall->size; i++ ) {
 		map->iwall_nextxy(iwall->x, iwall->y, iwall->dir, i, &x1, &y1);
@@ -3185,6 +3185,7 @@ void map_iwall_remove(const char *wall_name)
 
 	map->list[iwall->m].iwall_num--;
 	strdb_remove(map->iwall_db, iwall->wall_name);
+	return true;
 }
 
 /**
diff --git a/src/map/map.h b/src/map/map.h
index 5c4c6d59d..d6afdc160 100644
--- a/src/map/map.h
+++ b/src/map/map.h
@@ -1293,7 +1293,7 @@ END_ZEROED_BLOCK;
 
 	bool (*iwall_set) (int16 m, int16 x, int16 y, int size, int8 dir, bool shootable, const char* wall_name);
 	void (*iwall_get) (struct map_session_data *sd);
-	void (*iwall_remove) (const char *wall_name);
+	bool (*iwall_remove) (const char *wall_name);
 
 	int (*addmobtolist) (unsigned short m, struct spawn_data *spawn); // [Wizputer]
 	void (*spawnmobs) (int16 m); // [Wizputer]
diff --git a/src/map/script.c b/src/map/script.c
index d11b6741a..3c5f4a232 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -13998,9 +13998,15 @@ BUILDIN(setwall) {
 	map->iwall_set(m, x, y, size, dir, shootable, name);
 	return true;
 }
-BUILDIN(delwall) {
+
+BUILDIN(delwall)
+{
 	const char *name = script_getstr(st,2);
-	map->iwall_remove(name);
+
+	if (!map->iwall_remove(name)) {
+		ShowWarning("buildin_delwall: Non-existent '%s' provided.\n", name);
+		return false;
+	}
 
 	return true;
 }