add map mask support

10 files changed, 98 insertions, 5 deletions

diff --git a/src/map/clif.cpp b/src/map/clif.cpp
index db5ecd2..35cc463 100644
--- a/src/map/clif.cpp
+++ b/src/map/clif.cpp
@@ -1155,6 +1155,9 @@ void clif_changemap(dumb_ptr<map_session_data> sd, MapName mapname, int x, int y
     fixed_91.x = x;
     fixed_91.y = y;
     send_fpacket<0x0091, 22>(s, fixed_91);
+
+    if(sd->bl_m->mask > 0)
+        clif_send_mask(sd, sd->bl_m->mask);
 }
 
 /*==========================================
@@ -3873,6 +3876,19 @@ void clif_message(dumb_ptr<block_list> bl, XString msg)
     clif_send(buf, bl, SendWho::AREA, MIN_CLIENT_VERSION);
 }
 
+void clif_send_mask(dumb_ptr<map_session_data> sd, int map_mask)
+{
+    nullpo_retv(sd);
+    if(sd->client_version < 2)
+        return;
+
+    Packet_Fixed<0x0226> fixed_226;
+    fixed_226.mask = map_mask;
+
+    Buffer buf = create_fpacket<0x0226, 10>(fixed_226);
+    send_buffer(sd->sess, buf);
+}
+
 /*==========================================
  *
  *------------------------------------------
diff --git a/src/map/clif.hpp b/src/map/clif.hpp
index cd499de..28f58a9 100644
--- a/src/map/clif.hpp
+++ b/src/map/clif.hpp
@@ -107,6 +107,7 @@ void clif_setnpcdirection_towards(dumb_ptr<map_session_data> sd, dumb_ptr<npc_da
 void clif_npc_send_title(Session *s, BlockId npcid, XString msg);
 void clif_change_music(dumb_ptr<map_session_data> sd, XString music);
 void clif_npc_action(dumb_ptr<map_session_data>, BlockId, short, int, short, short);
+void clif_send_mask(dumb_ptr<map_session_data>, int);
 
 // trade
 void clif_traderequest(dumb_ptr<map_session_data> sd, CharName name);
diff --git a/src/map/map.hpp b/src/map/map.hpp
index 2b638d4..aea35b7 100644
--- a/src/map/map.hpp
+++ b/src/map/map.hpp
@@ -505,6 +505,7 @@ struct map_local : map_abstract
     MapFlags flag;
     Point save;
     Point resave;
+    int mask;
     Array<dumb_ptr<npc_data>, MAX_NPC_PER_MAP> npc;
 };
 
diff --git a/src/map/mapflag.cpp b/src/map/mapflag.cpp
index 9f3c9ab..22c4878 100644
--- a/src/map/mapflag.cpp
+++ b/src/map/mapflag.cpp
@@ -71,7 +71,7 @@ bool impl_extract(XString str, MapFlag *mf)
         {"nowarp"_s, MapFlag::NOWARP},
         {"nowarpto"_s, MapFlag::NOWARPTO},
         {"nopvp"_s, MapFlag::NOPVP},
-        //{"noicewall"_s, MapFlag::NOICEWALL},
+        {"mask"_s, MapFlag::MASK},
         {"snow"_s, MapFlag::SNOW},
         {"fog"_s, MapFlag::FOG},
         {"sakura"_s, MapFlag::SAKURA},
diff --git a/src/map/mapflag.hpp b/src/map/mapflag.hpp
index 3538c56..9223d70 100644
--- a/src/map/mapflag.hpp
+++ b/src/map/mapflag.hpp
@@ -54,7 +54,7 @@ enum class MapFlag
     NOWARP = 1 << 13,
     NOWARPTO = 1 << 26,
     NOPVP = 1 << 14,
-    //NOICEWALL = 1 << 15,
+    MASK = 1 << 15,
     SNOW = 1 << 16,
     FOG = 1 << 17,
     SAKURA = 1 << 18,
diff --git a/src/map/mapflag.py b/src/map/mapflag.py
index b0a2f24..728aa81 100644
--- a/src/map/mapflag.py
+++ b/src/map/mapflag.py
@@ -40,7 +40,7 @@ class MapFlags(object):
             ('NOWARP', 13),
             ('NOWARPTO', 26),
             ('NOPVP', 14),
-            #('NOICEWALL', 15),
+            ('MASK', 15),
             ('SNOW', 16),
             ('FOG', 17),
             ('SAKURA', 18),
diff --git a/src/map/npc-parse.cpp b/src/map/npc-parse.cpp
index 0a0d682..9ee84d2 100644
--- a/src/map/npc-parse.cpp
+++ b/src/map/npc-parse.cpp
@@ -354,7 +354,7 @@ bool npc_load_mapflag(ast::npc::MapFlag& mapflag)
     }
 
     MapName savemap;
-    int savex, savey;
+    int savex, savey, mask;
 
     if (mf == MapFlag::NOSAVE)
     {
@@ -392,6 +392,19 @@ bool npc_load_mapflag(ast::npc::MapFlag& mapflag)
             return false;
         }
     }
+    else if (mf == MapFlag::MASK)
+    {
+        if (mapflag.vec_extra.data.size() == 1
+                && extract(mapflag.vec_extra.data[0].data, &mask))
+        {
+            m->mask = mask;
+        }
+        else
+        {
+            mapflag.vec_extra.span.error("Unable to extract map mask"_s);
+            return false;
+        }
+    }
     else
     {
         if (mapflag.vec_extra.data.size())
diff --git a/src/map/pc.cpp b/src/map/pc.cpp
index ca636b4..96233e1 100644
--- a/src/map/pc.cpp
+++ b/src/map/pc.cpp
@@ -796,6 +796,9 @@ int pc_authok(AccountId id, int login_id2,
 
     pc_calcstatus(sd, 1);
 
+    if(sd->bl_m->mask > 0)
+        clif_send_mask(sd, sd->bl_m->mask);
+
     // Init Quest Log
     clif_sendallquest(sd);
     return 0;
diff --git a/src/map/script-fun.cpp b/src/map/script-fun.cpp
index 2b72fc4..2822550 100644
--- a/src/map/script-fun.cpp
+++ b/src/map/script-fun.cpp
@@ -2704,6 +2704,50 @@ void builtin_music(ScriptState *st)
     clif_change_music(sd, msg);
 }
 
+static
+void builtin_mapmask(ScriptState *st)
+{
+    dumb_ptr<npc_data> nd;
+    dumb_ptr<map_session_data> sd;
+    int map_mask = conv_num(st, &AARG(0));
+
+    if(st->oid)
+        nd = map_id_is_npc(st->oid);
+    if(st->rid)
+        sd = script_rid2sd(st);
+
+    if(HARG(1) && sd != nullptr)
+        sd->bl_m->mask = map_mask;
+    else if(HARG(1) && nd)
+        nd->bl_m->mask = map_mask;
+
+    if (sd == nullptr)
+        return;
+    clif_send_mask(sd, map_mask);
+}
+
+static
+void builtin_getmask(ScriptState *st)
+{
+    dumb_ptr<npc_data> nd;
+    dumb_ptr<map_session_data> sd;
+    int map_mask;
+
+    if(st->oid)
+        nd = map_id_is_npc(st->oid);
+    if(st->rid)
+        sd = script_rid2sd(st);
+
+    if(sd != nullptr)
+        map_mask = sd->bl_m->mask;
+    else if(nd)
+        map_mask = nd->bl_m->mask;
+    else
+        map_mask = -1;
+
+    push_int<ScriptDataInt>(st->stack, map_mask);
+}
+
 /*==========================================
  * npctalk (sends message to surrounding
  * area) [Valaris]
@@ -3188,6 +3232,8 @@ BuiltinFunction builtin_functions[] =
     BUILTIN(npctalk, "ss?"_s, '\0'),
     BUILTIN(title, "s"_s, '\0'),
     BUILTIN(music, "s"_s, '\0'),
+    BUILTIN(mapmask, "i?"_s, '\0'),
+    BUILTIN(getmask, ""_s, 'i'),
     BUILTIN(getlook, "i"_s, 'i'),
     BUILTIN(getsavepoint, "i"_s, '.'),
     BUILTIN(areatimer, "MxyxytE"_s, '\0'),
diff --git a/tools/protocol.py b/tools/protocol.py
index 23a0719..f7be6e5 100755
--- a/tools/protocol.py
+++ b/tools/protocol.py
@@ -4703,7 +4703,20 @@ def build_context():
             Send mob walkpath data to client
         ''',
     )
-    # 0x0226 define='SMSG_MAP_MASK',
+    map_user.s(0x0226, 'send map mask',
+        define='SMSG_MAP_MASK',
+        fixed=[
+            at(0, u16, 'packet id'),
+            at(2, u32, 'mask'),
+            at(6, u32, 'unused'),
+        ],
+        fixed_size=10,
+        pre=[NOTHING],
+        post=[PRETTY],
+        desc='''
+            Set map mask
+        ''',
+    )
     map_user.s(0x0227, 'change map music',
         define='SMSG_MAP_MUSIC',
         head=[