From 3fad101fb841eb59a92e37878096ab7128504d82 Mon Sep 17 00:00:00 2001
From: Marko Lindqvist <cazfi74@gmail.com>
Date: Thu, 12 Oct 2023 22:09:46 +0300
Subject: [PATCH 10/10] Player removel: Clear city border claims

See osdn #48837

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
---
 client/client_main.c              | 1 +
 common/fc_interface.h             | 1 +
 common/player.c                   | 6 +++++-
 server/srv_main.c                 | 1 +
 tools/shared/tools_fc_interface.c | 2 ++
 5 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/client/client_main.c b/client/client_main.c
index a6e49549db..db6d6fd389 100644
--- a/client/client_main.c
+++ b/client/client_main.c
@@ -1526,6 +1526,7 @@ static void fc_interface_init_client(void)
   funcs->server_setting_val_bitwise_get = client_ss_val_bitwise_get;
   funcs->create_extra = NULL;
   funcs->destroy_extra = NULL;
+  funcs->destroy_city = NULL;
   funcs->player_tile_vision_get = client_map_is_known_and_seen;
   funcs->player_tile_city_id_get = client_plr_tile_city_id_get;
   funcs->gui_color_free = color_free;
diff --git a/common/fc_interface.h b/common/fc_interface.h
index bf13601545..be510c9fac 100644
--- a/common/fc_interface.h
+++ b/common/fc_interface.h
@@ -40,6 +40,7 @@ struct functions {
   void (*create_extra)(struct tile *ptile, struct extra_type *pextra,
                        struct player *pplayer);
   void (*destroy_extra)(struct tile *ptile, struct extra_type *pextra);
+  void (*destroy_city)(struct city *pcity);
   /* Returns iff the player 'pplayer' has the vision in the layer
      'vision' at tile given by 'ptile'. */
   bool (*player_tile_vision_get)(const struct tile *ptile,
diff --git a/common/player.c b/common/player.c
index 1e05c2f3d3..87f3b3e972 100644
--- a/common/player.c
+++ b/common/player.c
@@ -698,7 +698,11 @@ void player_clear(struct player *pplayer, bool full)
   } unit_list_iterate_end;
 
   city_list_iterate(pplayer->cities, pcity) {
-    game_remove_city(pcity);
+    if (fc_funcs->destroy_city != NULL) {
+      fc_funcs->destroy_city(pcity);
+    } else {
+      game_remove_city(pcity);
+    }
   } city_list_iterate_end;
 
   if (full) {
diff --git a/server/srv_main.c b/server/srv_main.c
index 474b00febf..d4f203cdf6 100644
--- a/server/srv_main.c
+++ b/server/srv_main.c
@@ -3554,6 +3554,7 @@ static void fc_interface_init_server(void)
   funcs->server_setting_val_bitwise_get = server_ss_val_bitwise_get;
   funcs->create_extra = create_extra;
   funcs->destroy_extra = destroy_extra;
+  funcs->destroy_city = remove_city;
   funcs->player_tile_vision_get = map_is_known_and_seen;
   funcs->player_tile_city_id_get = server_plr_tile_city_id_get;
   funcs->gui_color_free = server_gui_color_free;
diff --git a/tools/shared/tools_fc_interface.c b/tools/shared/tools_fc_interface.c
index f99acbc038..d0f73ec878 100644
--- a/tools/shared/tools_fc_interface.c
+++ b/tools/shared/tools_fc_interface.c
@@ -61,6 +61,8 @@ void fc_interface_init_tool(void)
 {
   struct functions *funcs = fc_interface_funcs();
 
+  memset(funcs, 0, sizeof(*funcs));
+
   /* May be used when generating help texts */
   funcs->server_setting_by_name = server_ss_by_name;
   funcs->server_setting_name_get = server_ss_name_get;
-- 
2.42.0