1

CMakeLists.txt

@@ -6,7 +6,6 @@ include(cmake/CPM.cmake)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
 set(CMAKE_POLICY_VERSION_MINIMUM 3.10)
-add_definitions(-DLUA_USE_DLOPEN)
 include(cmake/EnumOption.cmake)
 
 if(EMSCRIPTEN)
@@ -34,9 +33,11 @@ if (${PLATFORM} STREQUAL "Desktop")
         add_definitions(-D_CRT_SECURE_NO_WARNINGS)
         include_directories(misc/windows)
         set(EXTRA_LIBS ws2_32 winhttp)
+        add_definitions(-DLUA_DL_DLL=1)
     elseif(UNIX)
         find_library(pthread NAMES pthread)
         set(EXTRA_LIBS pthread m)
+        add_definitions(-DLUA_USE_DLOPEN=1)
     endif()
 
 elseif (${PLATFORM} STREQUAL "Web")

src/client/gui/screens/ConsoleScreen.cpp

@@ -6,7 +6,7 @@
 #include "../../../world/level/Level.h"
 #include "../../../network/RakNetInstance.h"
 #include "../../../network/ServerSideNetworkHandler.h"
-#include "../../../network/packet/ChatPacket.h"
+#include "../../../network/packet/MessagePacket.h"
 #include "../../../platform/log.h"
 #include "util/StringUtils.h"
 
@@ -76,7 +76,7 @@ void ConsoleScreen::execute()
         if (minecraft->netCallback && minecraft->raknetInstance->isServer()) {
             static_cast<ServerSideNetworkHandler*>(minecraft->netCallback)->displayGameMessage(_input);
         } else if (minecraft->netCallback) {
-            ChatPacket chatPkt(_input);
+            MessagePacket chatPkt(_input.c_str());
             minecraft->raknetInstance->send(chatPkt);
         } else {
             minecraft->gui.addMessage("<" + minecraft->player->name + "> " + _input);

src/network/ServerSideNetworkHandler.cpp

@@ -164,9 +164,13 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, ChatPack
 	
 	if (packet->message[0] == '/') {
 		// This is a command
-		ChatPacket resp(minecraft->commandManager().execute(*minecraft, *player, Util::stringTrim(packet->message.substr(1))));
+		auto cmd = Util::stringTrim(packet->message.substr(1));
+
+		if (PluginsManager::get().emitCommands(cmd, LuaPlayer(source))) {
+			ChatPacket resp(minecraft->commandManager().execute(*minecraft, *player, cmd));
 			return sendPrivate(resp, source);	
 		}
+	}
 
 	displayGameMessage("<" + player->name + "> " + packet->message);
 	PluginsManager::get().emit("Message", LuaPlayer(source), packet->message);
@@ -452,12 +456,18 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, MovePlay
 		// 	}
 		// }
 		
+		PluginsManager::get().emit(
+			"PlayerMovement", 
+			LuaPlayer(source), 
+			packet->x, packet->y, packet->z, packet->yRot, packet->xRot, // newPos
+			player->x, player->y, player->z, player->yRot, player->xRot // oldPos
+		);
+
 		entity->xd = entity->yd = entity->zd = 0;	
 		entity->lerpTo(packet->x, packet->y, packet->z, packet->yRot, packet->xRot, 3);
 		
 		// broadcast this packet to other clients
 		redistributePacket(packet, source);
-	
 	}
 }
 

src/plugins/LuaPlayer.hpp

@@ -5,49 +5,89 @@
 #include <network/ServerSideNetworkHandler.h>
 #include <world/entity/player/Player.h>
 #include <client/Minecraft.h>
+#include <network/packet/ChatPacket.h>
+#include <network/packet/MovePlayerPacket.h>
+#include <world/entity/player/Inventory.h>
 
 class LuaPlayer {
 public:
     LuaPlayer(const RakNet::RakNetGUID source) : m_source(source) {}
 
-    std::string getNickname() {
+    Player* getPlayer() {
         auto mc = PluginsManager::get().getMinecraft();
         ServerSideNetworkHandler* ss = (ServerSideNetworkHandler*) mc->netCallback;
-
         auto plr = ss->getPlayer(m_source);
+
+        return plr;
+    }
+
+    std::string getNickname() {
+        auto plr = getPlayer();
         if (plr != nullptr) return plr->name;
 
         return "";
     }
 
-    float getX() {
-        auto mc = PluginsManager::get().getMinecraft();
-        ServerSideNetworkHandler* ss = (ServerSideNetworkHandler*) mc->netCallback;
+    std::tuple<float, float, float, float, float> getPos() {
+        auto plr = getPlayer();
+        if (plr != nullptr) return {plr->x, plr->y, plr->z, plr->yRot, plr->xRot};
 
-        auto plr = ss->getPlayer(m_source);
-        if (plr != nullptr) return plr->x;
-
-        return 0;
+        return {0, 0, 0, 0, 0};
     }
 
-    float getY() {
+    void setPos(float x, float y, float z, float yRot, float xRot) {
+        auto plr = getPlayer();
+        if (plr == nullptr) return;
+        
         auto mc = PluginsManager::get().getMinecraft();
         ServerSideNetworkHandler* ss = (ServerSideNetworkHandler*) mc->netCallback;
 
-        auto plr = ss->getPlayer(m_source);
-        if (plr != nullptr) return plr->y;
 
-        return 0;
+        // plr->x = x;
+        // plr->y = y;
+        // plr->z = z;
+        // plr->yRot = yRot;
+        // plr->xRot = xRot;
+        plr->xd = plr->yd = plr->zd = 0;	
+		plr->lerpTo(x, y, z, yRot, xRot, 3);
+		
+        MovePlayerPacket move(plr->entityId, x, y, z, yRot, xRot);
+
+        ss->sendPrivate(move, m_source);
     }
 
-    float getZ() {
+    void sendMessage(std::string msg) {
         auto mc = PluginsManager::get().getMinecraft();
         ServerSideNetworkHandler* ss = (ServerSideNetworkHandler*) mc->netCallback;
+        ChatPacket packet(msg);
 
-        auto plr = ss->getPlayer(m_source);
-        if (plr != nullptr) return plr->z;
+        ss->sendPrivate(packet, m_source);
+    }
 
-        return 0;
+    void addItem(int id, int count, int auxValue) {
+        auto plr = getPlayer();
+        if (plr == nullptr) return;
+
+        plr->inventory->add(new ItemInstance(id, count, auxValue));
+    }
+
+    sol::table getInventory() {
+        auto plr = getPlayer();
+        if (plr == nullptr) return {};
+
+        sol::table inv = PluginsManager::get().getLua().create_table();
+
+		for (int i = Inventory::MAX_SELECTION_SIZE; i < plr->inventory->getContainerSize(); i++) {
+			auto itm = plr->inventory->getItem(i);
+
+			if (itm != NULL) {
+                inv[i - 8] = {itm->id, itm->count, itm->getAuxValue()};
+			} else {
+                inv[i - 8] = sol::lua_nil;
+            }
+		}
+
+        return inv;
     }
 private:
     const RakNet::RakNetGUID m_source;

src/plugins/PluginsManager.cpp

@@ -8,7 +8,7 @@
 namespace fs = std::filesystem;
 
 void PluginsManager::init(Minecraft& minecraft) {
-    m_lua.open_libraries(sol::lib::base, sol::lib::package, sol::lib::string, sol::lib::math, sol::lib::table);
+    m_lua.open_libraries(sol::lib::base, sol::lib::package, sol::lib::string, sol::lib::math, sol::lib::table, sol::lib::io);
     registerTypes();
 
     m_minecraft = &minecraft;    
@@ -19,10 +19,13 @@ void PluginsManager::registerTypes() {
     // m_lua.set_function("subscribe", &PluginsManager::subscribe);
 
     m_lua.set_function("subscribe", [this](std::string event, sol::protected_function func) {
-        // @note: why the .at() not working?
         m_callbacks[event].push_back(func);
     });
 
+    m_lua.set_function("addCommand", [this](std::string commandName, sol::function func) {
+        m_luaCommands[commandName].push_back(func);
+    });
+
     m_lua.new_usertype<LuaServer>(
         "Server",
         "sendMessage", &LuaServer::sendServerMessage
@@ -31,9 +34,10 @@ void PluginsManager::registerTypes() {
     m_lua.new_usertype<LuaPlayer>(
         "Player",
         "getNickname", &LuaPlayer::getNickname,
-        "getX", &LuaPlayer::getX,
-        "getY", &LuaPlayer::getY,
-        "getZ", &LuaPlayer::getZ
+        "getPos", &LuaPlayer::getPos,
+        "setPos", &LuaPlayer::setPos,
+        "sendMessage", &LuaPlayer::sendMessage,
+        "getInventory", &LuaPlayer::getInventory
     );
 
     m_lua["Server"] = &m_srv;
@@ -42,7 +46,13 @@ void PluginsManager::registerTypes() {
 void PluginsManager::loadPlugins() {
     std::string path = "plugins/";
 
-    for (const auto & entry : fs::directory_iterator(path)) {
+    if (fs::exists(path)) {
+        for (const auto& entry : fs::directory_iterator(path)) {
+            if (!fs::is_directory(entry.path().string())) {
                 m_lua.script_file(entry.path().string());        
             }
+        }
+    } else {
+        std::filesystem::create_directory(path);
+    }
 }

src/plugins/PluginsManager.hpp

@@ -20,6 +20,8 @@ public:
 
     void loadPlugins();
 
+    sol::state& getLua() { return m_lua; }
+
     // @ai @note maybe we should rewrite it...
     // problem that i dont know how to pass args in sol::function dynamically
     // so i used ai
@@ -40,9 +42,27 @@ public:
         }
     }  
 
+    template<typename... Args>
+    int emitCommands(std::string event, Args&&... args) {
+        auto it = m_luaCommands.find(event);
+
+        if (it == m_luaCommands.end()) return 1;
+
+        for (auto& callback : it->second) {
+            sol::protected_function_result result = callback(std::forward<Args>(args)...);
+
+            if (!result.valid()) {
+                sol::error err = result;
+                std::cout << err.what() << std::endl;
+            }
+        }
+
+        return 0;
+    }  
     Minecraft* getMinecraft() { return m_minecraft; }
 private:
     std::unordered_map<std::string, std::vector<sol::function>> m_callbacks;
+    std::unordered_map<std::string, std::vector<sol::function>> m_luaCommands;
 
     LuaServer  m_srv;
     sol::state m_lua;