6 files changed, 74 insertions, 1 deletions

diff --git a/src/map/clif.c b/src/map/clif.c
index c4766dc..3ceaabd 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -20,6 +20,8 @@
 #include "map/mapd.h"
 #include "map/mapdext.h"
 #include "map/send.h"
+#include "map/session.h"
+#include "map/sessionext.h"
 
 void eclif_quest_send_list(struct map_session_data *sd)
 {
@@ -145,7 +147,20 @@ void eclif_getareachar_unit_post(struct map_session_data* sd, struct block_list
 
 void eclif_authok_post(struct map_session_data *sd)
 {
+    if (!sd)
+        return;
+
     eclif_send_additional_slots(sd, sd);
+    struct MapdExt *data = mapd_get(sd->bl.m);
+    int mask = data ? data->mask : 1;
+    send_mapmask(sd->fd, mask);
+}
+
+void eclif_changemap_post(struct map_session_data *sd, short *m, int *x, int *y)
+{
+    struct MapdExt *data = mapd_get(sd->bl.m);
+    int mask = data ? data->mask : 1;
+    send_mapmask(sd->fd, mask);
 }
 
 void eclif_handle_invisible_map(struct block_list *bl, enum send_target target)
@@ -179,3 +194,23 @@ void eclif_set_unit_idle(struct block_list* bl, struct map_session_data *tsd, en
 
     eclif_handle_invisible_map(bl, *target);
 }
+
+int eclif_send_actual(int *fd, void *buf, int *len)
+{
+    if (*len >= 2)
+    {
+        const int packet = RBUFW (buf, 0);
+        if (packet == 0xb02)
+        {
+            struct SessionExt *data = session_get(*fd);
+            if (!data)
+                return 0;
+            if (data->clientVersion < 3)
+            {   // not sending 0xb02 to old clients
+                hookStop();
+                return 0;
+            }
+        }
+    }
+    return 0;
+}
diff --git a/src/map/clif.h b/src/map/clif.h
index 3180919..0699601 100644
--- a/src/map/clif.h
+++ b/src/map/clif.h
@@ -8,11 +8,14 @@ void eclif_quest_send_list(struct map_session_data *sd);
 void eclif_quest_add(struct map_session_data *sd, struct quest *qd);
 void eclif_charnameack(int *fdPtr, struct block_list *bl);
 void eclif_getareachar_unit_post(struct map_session_data* sd, struct block_list *bl);
-void eclif_authok_post(struct map_session_data *sd);
 void eclif_sendlook(struct block_list *bl, int *id, int *type,
                     int *val, int *val2, enum send_target *target);
 bool eclif_send(const void* buf, int *len, struct block_list* bl, enum send_target *type);
 void eclif_set_unit_idle(struct block_list* bl, struct map_session_data *tsd,
                          enum send_target *target);
+int eclif_send_actual(int *fd, void *buf, int *len);
+
+void eclif_authok_post(struct map_session_data *sd);
+void eclif_changemap_post(struct map_session_data *sd, short *m, int *x, int *y);
 
 #endif  // EVOL_MAP_CLIF
diff --git a/src/map/init.c b/src/map/init.c
index 019f53c..e22bcba 100644
--- a/src/map/init.c
+++ b/src/map/init.c
@@ -94,9 +94,11 @@ HPExport void plugin_init (void)
     addHookPre("clif->sendlook", eclif_sendlook);
     addHookPre("clif->send", eclif_send);
     addHookPre("clif->set_unit_idle", eclif_set_unit_idle);
+    addHookPre("clif->send_actual", eclif_send_actual);
 
     addHookPost("clif->getareachar_unit", eclif_getareachar_unit_post);
     addHookPost("clif->authok", eclif_authok_post);
+    addHookPost("clif->changemap", eclif_changemap_post);
 
     langScriptId = script->add_str("Lang");
 }
diff --git a/src/map/script.c b/src/map/script.c
index 93ca052..676d598 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -445,7 +445,10 @@ BUILDIN(setMapMask)
     getMapData(m);
 
     const int val = script_getnum(st, 3);
+    const unsigned int old = mapData->mask;
     mapData->mask = val;
+    if (old != mapData->mask)
+        send_mapmask_brodcast(m, mapData->mask);
     return true;
 }
 
@@ -478,7 +481,11 @@ BUILDIN(addMapMask)
         return false;
     getMapData(m);
     const int val = script_getnum(st, 3);
+    const unsigned int old = mapData->mask;
     mapData->mask |= val;
+    if (old != mapData->mask)
+        send_mapmask_brodcast(m, mapData->mask);
+
     return true;
 }
 
@@ -492,7 +499,10 @@ BUILDIN(removeMapMask)
         return false;
     getMapData(m);
     const int val = script_getnum(st, 3);
+    const unsigned int old = mapData->mask;
     mapData->mask |= val;
     mapData->mask ^= val;
+    if (old != mapData->mask)
+        send_mapmask_brodcast(m, mapData->mask);
     return true;
 }
diff --git a/src/map/send.c b/src/map/send.c
index 8e2f878..f923dbb 100644
--- a/src/map/send.c
+++ b/src/map/send.c
@@ -79,3 +79,24 @@ void send_changelook(int fd, int id, int type, int val)
     WFIFOW (fd, 9) = 0;
     WFIFOSET (fd, 11);
 }
+
+void send_mapmask(int fd, int mask)
+{
+    WFIFOHEAD (fd, 10);
+    WFIFOW (fd, 0) = 0xb02;
+    WFIFOL (fd, 2) = mask;
+    WFIFOL (fd, 6) = 0;
+    WFIFOSET (fd, 10);
+}
+
+void send_mapmask_brodcast(const int map, const int mask)
+{
+    struct block_list bl;
+    char buf[10];
+
+    bl.m = map;
+    WBUFW (buf, 0) = 0xb02;
+    WBUFL (buf, 2) = mask;
+    WBUFL (buf, 6) = 0;
+    clif->send(buf, 10, &bl, ALL_SAMEMAP);
+}
diff --git a/src/map/send.h b/src/map/send.h
index afa0f3b..d79765a 100644
--- a/src/map/send.h
+++ b/src/map/send.h
@@ -8,5 +8,7 @@ void send_npccommand (struct map_session_data *sd, int npcId, int cmd);
 void send_npccommand2 (struct map_session_data *sd, int npcId, int cmd, int id, int x, int y);
 void send_local_message(int fd, struct block_list* bl, const char* msg);
 void send_changelook(int fd, int id, int type, int val);
+void send_mapmask(int fd, int mask);
+void send_mapmask_brodcast(const int map, const int mask);
 
 #endif  // EVOL_MAP_PC