From 4c06d090c1c3f3c3e827b876187f3b0dae89b14a Mon Sep 17 00:00:00 2001
From: mekolat <mekolat@users.noreply.github.com>
Date: Fri, 13 May 2016 13:59:10 -0400
Subject: [PATCH 1/2] add packet SMSG_MAP_SET_TILES_TYPE [0x0231]

---
 tools/protocol.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tools/protocol.py b/tools/protocol.py
index 5a9e05c78..7a5542a9e 100755
--- a/tools/protocol.py
+++ b/tools/protocol.py
@@ -4796,6 +4796,26 @@ def build_context():
             Execute a client command remotely
         ''',
     )
+    map_user.s(0x0231, 'send area collision',
+        define='SMSG_MAP_SET_TILES_TYPE',
+        fixed=[
+            at(0, u16, 'packet id'),
+            at(2, u16, 'x1'),
+            at(4, u16, 'y1'),
+            at(6, u16, 'x2'),
+            at(8, u16, 'y2'),
+            at(10, u32, 'mask'),
+            at(14, u32, 'unused layer'),
+            at(18, map_name, 'map'),
+        ],
+        fixed_size=34,
+        pre=[NOTHING],
+        post=[PRETTY],
+        desc='''
+            Set updated collision for a square area
+        ''',
+    )
+
 
     # TOC_LOGINCHAR
     # login char

From 6d5919b4f782adc453106312c394cf1b7dd9e58f Mon Sep 17 00:00:00 2001
From: mekolat <mekolat@users.noreply.github.com>
Date: Fri, 13 May 2016 14:34:56 -0400
Subject: [PATCH 2/2] implement SMSG_MAP_SET_TILES_TYPE, add builtin
 sendcollision

---
 src/map/clif.cpp       | 18 ++++++++++++++++++
 src/map/clif.hpp       |  1 +
 src/map/script-fun.cpp | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/src/map/clif.cpp b/src/map/clif.cpp
index bd7f4ef68..0ae8fbe0d 100644
--- a/src/map/clif.cpp
+++ b/src/map/clif.cpp
@@ -3921,6 +3921,24 @@ void clif_remote_command(dumb_ptr<map_session_data> sd, XString cmd)
     clif_send(buf, sd, SendWho::SELF, wrap<ClientVersion>(6));
 }
 
+void clif_update_collision(dumb_ptr<map_session_data> sd, short x1, short y1,
+                           short x2, short y2, MapName map_name, int mask)
+{
+    nullpo_retv(sd);
+
+    Packet_Fixed<0x0231> fixed_231;
+    fixed_231.x1 = x1;
+    fixed_231.y1 = y1;
+    fixed_231.x2 = x2;
+    fixed_231.y2 = y2;
+    fixed_231.mask = mask;
+    fixed_231.unused_layer = 0;
+    fixed_231.map = map_name;
+    Buffer buf = create_fpacket<0x0231, 34>(fixed_231);
+
+    clif_send(buf, sd, SendWho::SELF, wrap<ClientVersion>(7));
+}
+
 void clif_change_music(dumb_ptr<map_session_data> sd, XString music)
 {
     nullpo_retv(sd);
diff --git a/src/map/clif.hpp b/src/map/clif.hpp
index 478329062..1d6365df8 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_server_message(dumb_ptr<map_session_data>, uint8_t, XString msg);
 void clif_remote_command(dumb_ptr<map_session_data>, XString);
+void clif_update_collision(dumb_ptr<map_session_data>, short, short, short, short, MapName, int);
 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);
diff --git a/src/map/script-fun.cpp b/src/map/script-fun.cpp
index 98c07ed5d..74045f24d 100644
--- a/src/map/script-fun.cpp
+++ b/src/map/script-fun.cpp
@@ -4186,6 +4186,38 @@ void builtin_remotecmd(ScriptState *st)
     clif_remote_command(sd, msg);
 }
 
+static
+void builtin_sendcollision(ScriptState *st)
+{
+    dumb_ptr<map_session_data> sd = script_rid2sd(st);
+    MapName map_name = stringish<MapName>(ZString(conv_str(st, &AARG(0))));
+    int mask = conv_num(st, &AARG(1));
+    short x1, y1, x2, y2;
+    x1 = x2 = conv_num(st, &AARG(2));
+    y1 = y2 = conv_num(st, &AARG(3));
+
+    if (HARG(5))
+    {
+        x2 = conv_num(st, &AARG(4));
+        y2 = conv_num(st, &AARG(5));
+        if (HARG(6))
+        {
+            CharName player = stringish<CharName>(ZString(conv_str(st, &AARG(6))));
+            sd = map_nick2sd(player);
+        }
+    }
+
+    else if (HARG(4))
+    {
+        CharName player = stringish<CharName>(ZString(conv_str(st, &AARG(4))));
+        sd = map_nick2sd(player);
+    }
+
+    if (sd == nullptr)
+        return;
+    clif_update_collision(sd, x1, y1, x2, y2, map_name, mask);
+}
+
 static
 void builtin_music(ScriptState *st)
 {
@@ -4818,6 +4850,7 @@ BuiltinFunction builtin_functions[] =
     BUILTIN(title, "s"_s, '\0'),
     BUILTIN(smsg, "e??"_s, '\0'),
     BUILTIN(remotecmd, "s?"_s, '\0'),
+    BUILTIN(sendcollision, "Mixy???"_s, '\0'),
     BUILTIN(music, "s"_s, '\0'),
     BUILTIN(mapmask, "i?"_s, '\0'),
     BUILTIN(getmask, ""_s, 'i'),