feat: auto switch hotkey presets

src/server/network/protocol/protocolgame.cpp

@@ -6568,6 +6568,7 @@ void ProtocolGame::sendAddCreature(std::shared_ptr<Creature> creature, const Pos
 
 	if (isLogin) {
 		sendMagicEffect(pos, CONST_ME_TELEPORT);
+		sendHotkeyPreset();
 		sendDisableLoginMusic();
 	}
 
@@ -9052,3 +9053,17 @@ void ProtocolGame::sendDisableLoginMusic() {
 	msg.addByte(0x00);
 	writeToOutputBuffer(msg);
 }
+
+void ProtocolGame::sendHotkeyPreset() {
+	if (!player || oldProtocol) {
+		return;
+	}
+
+	auto vocation = g_vocations().getVocation(player->getVocation()->getBaseId());
+	if (vocation) {
+		NetworkMessage msg;
+		msg.addByte(0x9D);
+		msg.add<uint32_t>(vocation->getClientId());
+		writeToOutputBuffer(msg);
+	}
+}

src/server/network/protocol/protocolgame.hpp

@@ -514,6 +514,7 @@ class ProtocolGame final : public Protocol {
 	void sendSingleSoundEffect(const Position &pos, SoundEffect_t id, SourceEffect_t source);
 	void sendDoubleSoundEffect(const Position &pos, SoundEffect_t mainSoundId, SourceEffect_t mainSource, SoundEffect_t secondarySoundId, SourceEffect_t secondarySource);
 
+	void sendHotkeyPreset();
 	void sendDisableLoginMusic();
 
 	uint8_t m_playerDeathTime = 0;