Add Initial Chat Functionality

Moves three chat log items to devilution namespace and adds commands for reading from and writing to chat.

Source/dapi/Backend/Messages/command.proto

@@ -141,6 +141,10 @@ message IdentifyItem {
 	uint32 ID = 1;
 }
 
+message SendChat {
+	string message = 1;
+}
+
 message Command {
 	oneof command {
 		Move move = 1;
@@ -176,5 +180,6 @@ message Command {
 		Quit quit = 31;
 		ClearCursor clearCursor = 32;
 		IdentifyItem identifyItem = 33;
+		SendChat sendChat = 34;
 	}
 }

Source/dapi/Backend/Messages/game.proto

@@ -34,4 +34,5 @@ message FrameUpdate {
 	repeated dapi.data.MissileData missileData = 26;
 	repeated dapi.data.PortalData portalData = 27;
 	repeated dapi.data.QuestData questData = 28;
+	repeated string chatMessages = 29;
 }

Source/dapi/GameData.h

@@ -31,6 +31,7 @@ struct GameData {
 	bool invflag;
 	bool qtextflag;
 	int currlevel;
+	size_t lastLogSize;
 
 	std::map<int, PlayerData> playerList;
 	std::vector<ItemData> itemList;

Source/dapi/Server.cpp

@@ -201,6 +201,9 @@ void Server::processMessages()
 			} else if (command.has_identifyitem()) {
 				auto identifyItem = command.identifyitem();
 				this->identifyItem(identifyItem.id());
+			} else if (command.has_sendchat()) {
+				auto sendChat = command.sendchat();
+				this->sendChat(sendChat.message());
 			}
 			issuedCommand = true;
 			if (command.has_setfps()) {
@@ -414,6 +417,24 @@ void Server::updateGameData()
 
 	update->set_connectedto(1);
 
+	for (auto chatLogLine = data->lastLogSize; chatLogLine < devilution::ChatLogLines.size(); chatLogLine++)
+	{
+		std::stringstream message;
+		for (auto &textLine : devilution::ChatLogLines[chatLogLine].colors)
+		{
+			if (devilution::HasAnyOf(textLine.color, devilution::UiFlags::ColorWhitegold & devilution::UiFlags::ColorBlue))
+				message << textLine.text << ": ";
+			if (devilution::HasAnyOf(textLine.color, devilution::UiFlags::ColorWhite))
+				message << textLine.text;
+		}
+		if (message.str().size())
+		{
+			auto chatMessage = update->add_chatmessages();
+			*chatMessage = message.str();
+		}
+	}
+	data->lastLogSize = devilution::ChatLogLines.size();
+
 	update->set_player(devilution::MyPlayerId);
 
 	update->set_stextflag(static_cast<char>(devilution::ActiveStore));
@@ -2448,4 +2469,17 @@ void Server::identifyItem(int itemID)
 		}
 	}
 }
+
+void Server::sendChat(std::string message)
+{
+	if (!devilution::gbIsMultiplayer)
+		return;
+
+	if (79 < message.length())
+		message = message.substr(0, 79);
+
+	char charMsg[MAX_SEND_STR_LEN];
+	devilution::CopyUtf8(charMsg, message, sizeof(charMsg));
+	devilution::NetSendCmdString(0xFFFFFF, charMsg);
+}
 } // namespace DAPI

Source/dapi/Server.h

@@ -25,6 +25,7 @@
 #include "msg.h"
 #include "engine/random.hpp"
 #include "gamemenu.h"
+#include "qol/chatlog.h"
 
 namespace DAPI {
 enum struct CommandType {
@@ -247,6 +248,7 @@ private:
 	void quit();
 	void clearCursor();
 	void identifyItem(int itemID);
+	void sendChat(std::string message);
 
 	bool listening = false;
 

Source/qol/chatlog.cpp

@@ -27,24 +27,14 @@
 
 namespace devilution {
 
-namespace {
-
-struct ColoredText {
-	std::string text;
-	UiFlags color;
-};
+std::vector<MultiColoredText> ChatLogLines;
 
-struct MultiColoredText {
-	std::string text;
-	std::vector<ColoredText> colors;
-};
+namespace {
 
 bool UnreadFlag = false;
 size_t SkipLines;
 unsigned int MessageCounter = 0;
 
-std::vector<MultiColoredText> ChatLogLines;
-
 constexpr int PaddingTop = 32;
 constexpr int PaddingLeft = 32;
 

Source/qol/chatlog.h

@@ -11,7 +11,18 @@
 
 namespace devilution {
 
+struct ColoredText {
+	std::string text;
+	UiFlags color;
+};
+
+struct MultiColoredText {
+	std::string text;
+	std::vector<ColoredText> colors;
+};
+
 extern bool ChatLogFlag;
+extern std::vector<MultiColoredText> ChatLogLines;
 
 void ToggleChatLog();
 void AddMessageToChatLog(std::string_view message, Player *player = nullptr, UiFlags flags = UiFlags::ColorWhite);