From 8301bc74f34ae999cf8aa3cb6a5c4f371e1a47d7 Mon Sep 17 00:00:00 2001
From: Kamil Chojnowski <diath@zodiaclabs.org>
Date: Sat, 5 Jan 2019 22:22:01 +0100
Subject: [PATCH] Add support for channel events

---
 modules/game_console/console.lua | 35 +++++++++++++++++++++++++++-----
 modules/gamelib/const.lua        |  7 +++++++
 src/client/protocolgameparse.cpp | 10 +++++----
 3 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/modules/game_console/console.lua b/modules/game_console/console.lua
index 25c2e7a7..b855106d 100644
--- a/modules/game_console/console.lua
+++ b/modules/game_console/console.lua
@@ -52,6 +52,13 @@ SayModes = {
   [3] = { speakTypeDesc = 'yell', icon = '/images/game/console/yell' }
 }
 
+ChannelEventFormats = {
+  [ChannelEvent.Join] = '%s joined the channel.',
+  [ChannelEvent.Leave] = '%s left the channel.',
+  [ChannelEvent.Invite] = '%s has been invited to the channel.',
+  [ChannelEvent.Exclude] = '%s has been removed from the channel.',
+}
+
 MAX_HISTORY = 500
 MAX_LINES = 100
 HELP_CHANNEL = 9
@@ -98,7 +105,8 @@ function init()
     onRuleViolationCancel = onRuleViolationCancel,
     onRuleViolationLock = onRuleViolationLock,
     onGameStart = online,
-    onGameEnd = offline
+    onGameEnd = offline,
+    onChannelEvent = onChannelEvent,
   })
 
   consolePanel = g_ui.loadUI('console', modules.game_interface.getBottomPanel())
@@ -240,7 +248,8 @@ function terminate()
     onRuleViolationCancel = onRuleViolationCancel,
     onRuleViolationLock = onRuleViolationLock,
     onGameStart = online,
-    onGameEnd = offline
+    onGameEnd = offline,
+    onChannelEvent = onChannelEvent,
   })
 
   if g_game.isOnline() then clear() end
@@ -684,7 +693,7 @@ function addTabText(text, speaktype, tab, creatureName)
         child:setSelection(string.len(child:getText()), textPos)
       end
     end
-    
+
     return true
   end
 
@@ -857,14 +866,14 @@ function sendMessage(message, tab)
     message = chatCommandMessage
     channel = 0
   end
-  
+
   -- player red talk on channel
   chatCommandMessage = message:match("^%#[c|C] (.*)")
   if chatCommandMessage ~= nil then
     chatCommandSayMode = 'channelRed'
     message = chatCommandMessage
   end
-  
+
   -- player broadcast
   chatCommandMessage = message:match("^%#[b|B] (.*)")
   if chatCommandMessage ~= nil then
@@ -1437,3 +1446,19 @@ function offline()
   end
   clear()
 end
+
+function onChannelEvent(channelId, name, type)
+  local fmt = ChannelEventFormats[type]
+  if not fmt then
+    print(('Unknown channel event type (%d).'):format(type))
+    return
+  end
+
+  local channel = channels[channelId]
+  if channel then
+    local tab = getTab(channel)
+    if tab then
+      addTabText(fmt:format(name), SpeakTypesSettings.channelOrange, tab)
+    end
+  end
+end
diff --git a/modules/gamelib/const.lua b/modules/gamelib/const.lua
index dbd18531..29df1f1b 100644
--- a/modules/gamelib/const.lua
+++ b/modules/gamelib/const.lua
@@ -333,4 +333,11 @@ SubscriptionStatus = {
   Premium = 1,
 }
 
+ChannelEvent = {
+  Join = 0,
+  Leave = 1,
+  Invite = 2,
+  Exclude = 3,
+}
+
 -- @}
diff --git a/src/client/protocolgameparse.cpp b/src/client/protocolgameparse.cpp
index 5bb49816..caf0fad5 100644
--- a/src/client/protocolgameparse.cpp
+++ b/src/client/protocolgameparse.cpp
@@ -1296,7 +1296,7 @@ void ProtocolGame::parsePremiumTrigger(const InputMessagePtr& msg)
     for(int i=0;i<triggerCount;++i) {
         triggers.push_back(msg->getU8());
     }
-    
+
     if(g_game.getClientVersion() <= 1096) {
         bool something = msg->getU8() == 1;
     }
@@ -1903,9 +1903,11 @@ void ProtocolGame::parseQuestLine(const InputMessagePtr& msg)
 
 void ProtocolGame::parseChannelEvent(const InputMessagePtr& msg)
 {
-    msg->getU16(); // channel id
-    g_game.formatCreatureName(msg->getString()); // player name
-    msg->getU8(); // event type
+    uint16 channelId = msg->getU16();
+    std::string name = g_game.formatCreatureName(msg->getString());
+    uint8 type = msg->getU8();
+
+    g_lua.callGlobalField("g_game", "onChannelEvent", channelId, name, type);
 }
 
 void ProtocolGame::parseItemInfo(const InputMessagePtr& msg)