356 lines
10 KiB
C++
356 lines
10 KiB
C++
/* Copyright: (c) Kayne Ruse 2013-2015
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "server_application.hpp"
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//utility functions
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#include "sql_tools.hpp"
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//std & STL
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#include <stdexcept>
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#include <chrono>
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#include <cstring>
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#include <iostream>
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#include <list>
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#include <sstream>
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#include <string>
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//-------------------------
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//public methods
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//-------------------------
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//BUG: #35 The server fails without at least one room
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void ServerApplication::Init(int argc, char* argv[]) {
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//NOTE: I might need to rearrange the init process so that lua & SQL can interact with the map system as needed.
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std::cout << "Beginning " << argv[0] << std::endl;
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//load the config settings
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config.Load("rsc/config.cfg", false, argc, argv);
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//-------------------------
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//Initialize the APIs
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//-------------------------
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//Init SDL
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if (SDL_Init(0)) {
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std::ostringstream os;
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os << "Failed to initialize SDL: " << SDL_GetError();
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throw(std::runtime_error(os.str()));
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}
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std::cout << "Initialized SDL" << std::endl;
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//Init SDL_net
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if (SDLNet_Init()) {
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throw(std::runtime_error("Failed to initialize SDL_net"));
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}
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network.Open(config.Int("server.port"));
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std::cout << "Initialized SDL_net" << std::endl;
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//Init SQL
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int ret = sqlite3_open_v2(config["server.dbname"].c_str(), &database, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, nullptr);
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if (ret != SQLITE_OK || !database) {
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throw(std::runtime_error(std::string() + "Failed to initialize SQL: " + sqlite3_errmsg(database) ));
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}
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std::cout << "Initialized SQL" << std::endl;
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//Init lua
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luaState = luaL_newstate();
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if (!luaState) {
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throw(std::runtime_error("Failed to initialize lua"));
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}
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luaL_openlibs(luaState);
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std::cout << "Initialized lua" << std::endl;
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//append config["dir.scripts"] to the module path
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if (config["dir.scripts"].size() > 0) {
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//get the original path
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lua_getglobal(luaState, "package");
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lua_getfield(luaState, -1, "path");
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//build & push the message
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std::ostringstream path;
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path << lua_tostring(luaState, -1) << ";" << config["dir.scripts"] << "?.lua";
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lua_pushstring(luaState, path.str().c_str());
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//set the new path and clean up the stack
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lua_setfield(luaState, -3, "path");
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lua_pop(luaState, 2);
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std::cout << "\tLua script directory appended" << std::endl;
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}
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//-------------------------
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//Setup the objects
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//-------------------------
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//set the hooks
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accountMgr.SetDatabase(database);
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characterMgr.SetDatabase(database);
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roomMgr.SetLuaState(luaState);
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roomMgr.SetDatabase(database);
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std::cout << "Internal managers initialized" << std::endl;
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//-------------------------
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//Run the startup scripts
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//-------------------------
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//setup the database
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if (runSQLScript(database, config["dir.scripts"] + "setup_server.sql")) {
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throw(std::runtime_error("Failed to initialize SQL's setup script"));
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}
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std::cout << "Completed SQL's setup script" << std::endl;
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//run lua's startup script
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if (luaL_dofile(luaState, (config["dir.scripts"] + "setup_server.lua").c_str())) {
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throw(std::runtime_error(std::string() + "Failed to initialize lua's setup script: " + lua_tostring(luaState, -1) ));
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}
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std::cout << "Completed lua's setup script" << std::endl;
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//-------------------------
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//debug output
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//-------------------------
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#define DEBUG_OUTPUT_VAR(x) std::cout << "\t" << #x << ": " << x << std::endl;
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std::cout << "Internal sizes:" << std::endl;
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DEBUG_OUTPUT_VAR(NETWORK_VERSION);
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DEBUG_OUTPUT_VAR(sizeof(Region::type_t));
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DEBUG_OUTPUT_VAR(sizeof(Region));
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DEBUG_OUTPUT_VAR(REGION_WIDTH);
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DEBUG_OUTPUT_VAR(REGION_HEIGHT);
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DEBUG_OUTPUT_VAR(REGION_DEPTH);
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DEBUG_OUTPUT_VAR(REGION_TILE_FOOTPRINT);
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DEBUG_OUTPUT_VAR(REGION_SOLID_FOOTPRINT);
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DEBUG_OUTPUT_VAR(PACKET_STRING_SIZE);
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DEBUG_OUTPUT_VAR(PACKET_BUFFER_SIZE);
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DEBUG_OUTPUT_VAR(MAX_PACKET_SIZE);
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DEBUG_OUTPUT_VAR(static_cast<int>(SerialPacketType::LAST));
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#undef DEBUG_OUTPUT_VAR
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//-------------------------
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//finalize the startup
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//-------------------------
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std::cout << "Startup completed successfully" << std::endl;
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//-------------------------
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//debugging
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//-------------------------
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//...
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}
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void ServerApplication::Proc() {
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//network buffer
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SerialPacket* packetBuffer = reinterpret_cast<SerialPacket*>(new char[MAX_PACKET_SIZE]);
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memset(packetBuffer, 0, MAX_PACKET_SIZE); //zero the buffer
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//time system
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typedef std::chrono::steady_clock Clock;
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Clock::time_point simTime = Clock::now();
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Clock::time_point realTime;
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while(running) {
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//suck in the waiting packets & process them
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while(network.Receive(packetBuffer)) {
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try {
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HandlePacket(packetBuffer);
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}
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catch(std::exception& e) {
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std::cerr << "HandlePacket Error: " << e.what() << std::endl;
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}
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//reset the buffer
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memset(packetBuffer, 0, MAX_PACKET_SIZE);
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}
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//Check client connections
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std::list<int> disconnections = clientMgr.CheckConnections();
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for(auto const& it : disconnections) {
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fullClientUnload(it);
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std::cerr << "Client dropped: " << it << std::endl;
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}
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//"tick" the internals
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realTime = Clock::now();
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if (simTime < realTime) {
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while(simTime < realTime) {
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for (auto& it : *roomMgr.GetContainer()) {
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it.second.RunFrame();
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}
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//~60 FPS
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simTime += std::chrono::duration<int, std::milli>(16);
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}
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}
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else {
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//give the machine a break
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SDL_Delay(10);
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}
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}
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delete reinterpret_cast<char*>(packetBuffer);
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}
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void ServerApplication::Quit() {
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std::cout << "Shutting down" << std::endl;
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//save the server state
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SaveServerState();
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//close the managers
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accountMgr.UnloadAll();
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characterMgr.UnloadAll();
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clientMgr.UnloadAll();
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roomMgr.UnloadAll();
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//APIs
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lua_close(luaState);
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sqlite3_close_v2(database);
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network.Close();
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SDLNet_Quit();
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SDL_Quit();
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std::cout << "Clean exit" << std::endl;
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}
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//-------------------------
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//handle incoming traffic
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//-------------------------
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void ServerApplication::HandlePacket(SerialPacket* const argPacket) {
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switch(argPacket->type) {
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//heartbeat system
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case SerialPacketType::PING:
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hPing(static_cast<ServerPacket*>(argPacket));
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break;
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case SerialPacketType::PONG:
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hPong(static_cast<ServerPacket*>(argPacket));
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break;
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//client connections
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case SerialPacketType::BROADCAST_REQUEST:
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hBroadcastRequest(static_cast<ServerPacket*>(argPacket));
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break;
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case SerialPacketType::JOIN_REQUEST:
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hJoinRequest(static_cast<ClientPacket*>(argPacket));
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break;
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case SerialPacketType::LOGIN_REQUEST:
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hLoginRequest(static_cast<ClientPacket*>(argPacket));
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break;
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//client disconnections
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case SerialPacketType::LOGOUT_REQUEST:
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hLogoutRequest(static_cast<ClientPacket*>(argPacket));
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break;
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case SerialPacketType::DISCONNECT_REQUEST:
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hDisconnectRequest(static_cast<ClientPacket*>(argPacket));
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break;
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//server commands
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case SerialPacketType::ADMIN_DISCONNECT_FORCED:
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hAdminDisconnectForced(static_cast<ClientPacket*>(argPacket));
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break;
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case SerialPacketType::ADMIN_SHUTDOWN_REQUEST:
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hAdminShutdownRequest(static_cast<ClientPacket*>(argPacket));
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break;
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//data management & queries
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case SerialPacketType::REGION_REQUEST:
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hRegionRequest(static_cast<RegionPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_CHARACTER_EXISTS:
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hQueryCharacterExists(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_CHARACTER_STATS:
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hQueryCharacterStats(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_CHARACTER_LOCATION:
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hQueryCharacterLocation(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_MONSTER_EXISTS:
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hQueryMonsterExists(static_cast<MonsterPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_MONSTER_STATS:
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hQueryMonsterStats(static_cast<MonsterPacket*>(argPacket));
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break;
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case SerialPacketType::QUERY_MONSTER_LOCATION:
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hQueryMonsterLocation(static_cast<MonsterPacket*>(argPacket));
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break;
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//character management
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case SerialPacketType::CHARACTER_CREATE:
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hCharacterCreate(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::CHARACTER_DELETE:
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hCharacterDelete(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::CHARACTER_LOAD:
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hCharacterLoad(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::CHARACTER_UNLOAD:
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hCharacterUnload(static_cast<CharacterPacket*>(argPacket));
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break;
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//character movement
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case SerialPacketType::CHARACTER_MOVEMENT:
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hCharacterMovement(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::CHARACTER_ATTACK:
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hCharacterAttack(static_cast<CharacterPacket*>(argPacket));
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break;
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case SerialPacketType::CHARACTER_DAMAGE:
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hCharacterDamage(static_cast<CharacterPacket*>(argPacket));
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break;
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//monster management
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case SerialPacketType::MONSTER_DAMAGE:
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hMonsterDamage(static_cast<MonsterPacket*>(argPacket));
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break;
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//chat
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case SerialPacketType::TEXT_BROADCAST:
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hTextBroadcast(static_cast<TextPacket*>(argPacket));
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break;
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case SerialPacketType::TEXT_SPEECH:
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hTextSpeech(static_cast<TextPacket*>(argPacket));
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break;
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case SerialPacketType::TEXT_WHISPER:
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hTextWhisper(static_cast<TextPacket*>(argPacket));
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break;
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//handle errors
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default: {
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std::ostringstream msg;
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msg << "Unknown SerialPacketType encountered in the server: ";
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msg << static_cast<int>(argPacket->type);
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throw(std::runtime_error(msg.str()));
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}
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break;
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}
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}
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