Merged server_internals.cpp and network_handlers.cpp into
server_application.cpp
This commit is contained in:
Kayne Ruse
@@ -0,0 +1,389 @@
|
||||
/* Copyright: (c) Kayne Ruse 2014
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
*
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
*
|
||||
* 3. This notice may not be removed or altered from any source
|
||||
* distribution.
|
||||
*/
|
||||
#include "server_application.hpp"
|
||||
|
||||
#include "sql_utility.hpp"
|
||||
#include "serial.hpp"
|
||||
|
||||
#include <stdexcept>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
//-------------------------
|
||||
//Define the public members
|
||||
//-------------------------
|
||||
|
||||
void ServerApplication::Init(int argc, char** argv) {
|
||||
//NOTE: I might need to rearrange the init process so that lua & SQL can interact with the map system as needed.
|
||||
std::cout << "Beginning startup" << std::endl;
|
||||
|
||||
//initial setup
|
||||
config.Load("rsc\\config.cfg");
|
||||
|
||||
//-------------------------
|
||||
//Initialize the APIs
|
||||
//-------------------------
|
||||
|
||||
//Init SDL
|
||||
if (SDL_Init(0)) {
|
||||
throw(std::runtime_error("Failed to initialize SDL"));
|
||||
}
|
||||
std::cout << "Initialized SDL" << std::endl;
|
||||
|
||||
//Init SDL_net
|
||||
if (SDLNet_Init()) {
|
||||
throw(std::runtime_error("Failed to initialize SDL_net"));
|
||||
}
|
||||
network.Open(config.Int("server.port"));
|
||||
std::cout << "Initialized SDL_net" << std::endl;
|
||||
|
||||
//Init SQL
|
||||
int ret = sqlite3_open_v2(config["server.dbname"].c_str(), &database, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, nullptr);
|
||||
if (ret != SQLITE_OK || !database) {
|
||||
throw(std::runtime_error(std::string() + "Failed to initialize SQL: " + sqlite3_errmsg(database) ));
|
||||
}
|
||||
std::cout << "Initialized SQL" << std::endl;
|
||||
|
||||
//Init lua
|
||||
luaState = luaL_newstate();
|
||||
if (!luaState) {
|
||||
throw(std::runtime_error("Failed to initialize lua"));
|
||||
}
|
||||
luaL_openlibs(luaState);
|
||||
std::cout << "Initialized lua" << std::endl;
|
||||
|
||||
//-------------------------
|
||||
//Setup the objects
|
||||
//-------------------------
|
||||
|
||||
//setup the map object
|
||||
regionPager.GetAllocator()->SetLuaState(luaState);
|
||||
regionPager.GetFormat()->SetLuaState(luaState);
|
||||
regionPager.GetFormat()->SetSaveDir(config["dir.maps"] + config["map.savename"]);
|
||||
std::cout << "Prepared the map system" << std::endl;
|
||||
|
||||
//push the pager onto the lua registry
|
||||
lua_pushstring(luaState, "pager");
|
||||
lua_pushlightuserdata(luaState, reinterpret_cast<void*>(®ionPager));
|
||||
lua_settable(luaState, LUA_REGISTRYINDEX);
|
||||
std::cout << "Registered the map system in lua" << std::endl;
|
||||
|
||||
//-------------------------
|
||||
//Run the startup scripts
|
||||
//-------------------------
|
||||
|
||||
//setup the database
|
||||
if (runSQLScript(database, config["dir.scripts"] + "setup_server.sql")) {
|
||||
throw(std::runtime_error("Failed to initialize SQL's setup script"));
|
||||
}
|
||||
std::cout << "Completed SQL's setup script" << std::endl;
|
||||
|
||||
//run lua's startup script
|
||||
if (luaL_dofile(luaState, (config["dir.scripts"] + "setup_server.lua").c_str())) {
|
||||
throw(std::runtime_error(std::string() + "Failed to initialize lua's setup script: " + lua_tostring(luaState, -1) ));
|
||||
}
|
||||
std::cout << "Completed lua's setup script" << std::endl;
|
||||
|
||||
//debug output
|
||||
std::cout << "Internal sizes:" << std::endl;
|
||||
std::cout << "\tsizeof(SerialPacket): " << sizeof(SerialPacket) << std::endl;
|
||||
std::cout << "\tPACKET_BUFFER_SIZE: " << PACKET_BUFFER_SIZE << std::endl;
|
||||
|
||||
//finalize the startup
|
||||
std::cout << "Startup completed successfully" << std::endl;
|
||||
|
||||
//debugging
|
||||
//
|
||||
}
|
||||
|
||||
void ServerApplication::Proc() {
|
||||
SerialPacket packet;
|
||||
while(running) {
|
||||
//suck in the waiting packets & process them
|
||||
while(network.Receive(&packet)) {
|
||||
HandlePacket(packet);
|
||||
}
|
||||
//update the internals
|
||||
//TODO: update the internals i.e. player positions
|
||||
//give the computer a break
|
||||
SDL_Delay(10);
|
||||
}
|
||||
}
|
||||
|
||||
void ServerApplication::Quit() {
|
||||
std::cout << "Shutting down" << std::endl;
|
||||
|
||||
//save the server state
|
||||
for (auto& it : accountMap) {
|
||||
SaveUserAccount(it.first);
|
||||
}
|
||||
for (auto& it : characterMap) {
|
||||
SaveCharacter(it.first);
|
||||
}
|
||||
|
||||
//empty the members
|
||||
accountMap.clear();
|
||||
characterMap.clear();
|
||||
regionPager.UnloadAll();
|
||||
|
||||
//APIs
|
||||
lua_close(luaState);
|
||||
sqlite3_close_v2(database);
|
||||
network.Close();
|
||||
SDLNet_Quit();
|
||||
SDL_Quit();
|
||||
|
||||
std::cout << "Shutdown finished" << std::endl;
|
||||
}
|
||||
|
||||
//-------------------------
|
||||
//Define the network switch
|
||||
//-------------------------
|
||||
|
||||
void ServerApplication::HandlePacket(SerialPacket packet) {
|
||||
switch(packet.meta.type) {
|
||||
//basic connections
|
||||
case SerialPacketType::BROADCAST_REQUEST:
|
||||
HandleBroadcastRequest(packet);
|
||||
break;
|
||||
case SerialPacketType::JOIN_REQUEST:
|
||||
HandleJoinRequest(packet);
|
||||
break;
|
||||
case SerialPacketType::DISCONNECT:
|
||||
HandleDisconnect(packet);
|
||||
break;
|
||||
case SerialPacketType::SHUTDOWN:
|
||||
HandleShutdown(packet);
|
||||
break;
|
||||
|
||||
//map management
|
||||
case SerialPacketType::REGION_REQUEST:
|
||||
HandleRegionRequest(packet);
|
||||
break;
|
||||
|
||||
//combat management
|
||||
//TODO: combat management
|
||||
|
||||
//character management
|
||||
case SerialPacketType::CHARACTER_NEW:
|
||||
HandleCharacterNew(packet);
|
||||
break;
|
||||
case SerialPacketType::CHARACTER_DELETE:
|
||||
HandleCharacterDelete(packet);
|
||||
break;
|
||||
case SerialPacketType::CHARACTER_UPDATE:
|
||||
HandleCharacterUpdate(packet);
|
||||
break;
|
||||
case SerialPacketType::CHARACTER_STATS_REQUEST:
|
||||
HandleCharacterUpdate(packet);
|
||||
break;
|
||||
|
||||
//enemy management
|
||||
//TODO: enemy management
|
||||
|
||||
//mismanagement
|
||||
case SerialPacketType::SYNCHRONIZE:
|
||||
HandleSynchronize(packet);
|
||||
break;
|
||||
|
||||
//handle errors
|
||||
default:
|
||||
throw(std::runtime_error(std::string() + "Unknown SerialPacketType encountered in the server: " + to_string_custom(int(packet.type))));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
//-------------------------
|
||||
//Define the network handlers
|
||||
//-------------------------
|
||||
|
||||
void ServerApplication::HandleBroadcastRequest(SerialPacket packet) {
|
||||
//pack the server's data
|
||||
packet.meta.type = SerialPacket::Type::BROADCAST_RESPONSE;
|
||||
packet.serverInfo.networkVersion = NETWORK_VERSION;
|
||||
snprintf(packet.serverInfo.name, PACKET_STRING_SIZE, "%s", config["server.name"].c_str());
|
||||
packet.serverInfo.playerCount = characterMap.size();
|
||||
|
||||
//bounce this packet
|
||||
network.SendTo(&packet.meta.srcAddress, &packet);
|
||||
}
|
||||
|
||||
void ServerApplication::HandleJoinRequest(SerialPacket packet) {
|
||||
//create the new client
|
||||
ClientData newClient;
|
||||
newClient.address = packet.meta.srcAddress;
|
||||
|
||||
//load the user account
|
||||
int accountIndex = LoadUserAccount(packet.clientInfo.username, clientUID);
|
||||
if (accountIndex < 0) {
|
||||
//TODO: send rejection packet
|
||||
std::cerr << "Error: Account already loaded: " << accountIndex << std::endl;
|
||||
return;
|
||||
}
|
||||
|
||||
//load the new character
|
||||
int characterIndex = LoadCharacter(accountIndex, packet.clientInfo.handle, packet.clientInfo.avatar);
|
||||
if (characterIndex < 0) {
|
||||
//TODO: send rejection packet
|
||||
std::cerr << "Error: Character already loaded: " << characterIndex << std::endl;
|
||||
UnloadUserAccount(accountIndex);
|
||||
return;
|
||||
}
|
||||
|
||||
//send the client their info
|
||||
packet.meta.type = SerialPacket::Type::JOIN_RESPONSE;
|
||||
packet.clientInfo.clientIndex = clientUID;
|
||||
packet.clientInfo.accountIndex = accountIndex;
|
||||
packet.clientInfo.characterIndex = characterIndex;
|
||||
|
||||
//bounce this packet
|
||||
network.SendTo(&newClient.address, &packet);
|
||||
|
||||
//reference to prevent multiple lookups
|
||||
//TODO: I need a way to pack structures unto packets more easily
|
||||
//NOTE: this chunk of code is similar to HandleSynchronize
|
||||
CharacterData& character = characterMap[characterIndex];
|
||||
|
||||
//send the new character to all clients
|
||||
packet.meta.type = SerialPacket::Type::CHARACTER_NEW;
|
||||
packet.characterInfo.characterIndex = characterIndex;
|
||||
strncpy(packet.characterInfo.handle, character.handle.c_str(), PACKET_STRING_SIZE);
|
||||
strncpy(packet.characterInfo.avatar, character.avatar.c_str(), PACKET_STRING_SIZE);
|
||||
packet.characterInfo.mapIndex = character.mapIndex;
|
||||
packet.characterInfo.origin = character.origin;
|
||||
packet.characterInfo.motion = character.motion;
|
||||
packet.characterInfo.stats = character.stats;
|
||||
|
||||
PumpPacket(packet);
|
||||
|
||||
//TODO: don't send anything to a certain client until they send the OK (the sync packet? or ignore client side?)
|
||||
//finished this routine
|
||||
clientMap[clientUID++] = newClient;
|
||||
std::cout << "Connect, total: " << clientMap.size() << std::endl;
|
||||
}
|
||||
|
||||
void ServerApplication::HandleSynchronize(SerialPacket packet) {
|
||||
//TODO: compensate for large distances
|
||||
|
||||
//send all the server's data to this client
|
||||
SerialPacket newPacket;
|
||||
|
||||
//characters
|
||||
newPacket.meta.type = SerialPacket::Type::CHARACTER_UPDATE;
|
||||
for (auto& it : characterMap) {
|
||||
//TODO: update this for the expanded CharacterData structure
|
||||
newPacket.characterInfo.characterIndex = it.first;
|
||||
snprintf(newPacket.characterInfo.handle, PACKET_STRING_SIZE, "%s", it.second.handle.c_str());
|
||||
snprintf(newPacket.characterInfo.avatar, PACKET_STRING_SIZE, "%s", it.second.avatar.c_str());
|
||||
newPacket.characterInfo.mapIndex = it.second.mapIndex;
|
||||
newPacket.characterInfo.origin = it.second.origin;
|
||||
newPacket.characterInfo.motion = it.second.motion;
|
||||
newPacket.characterInfo.stats = it.second.stats;
|
||||
|
||||
network.SendTo(&clientMap[packet.clientInfo.clientIndex].address, &newPacket);
|
||||
}
|
||||
}
|
||||
|
||||
void ServerApplication::HandleDisconnect(SerialPacket packet) {
|
||||
//TODO: authenticate who is disconnecting/kicking
|
||||
|
||||
//forward to the specified client
|
||||
network.SendTo(&clientMap[accountMap[packet.clientInfo.accountIndex].clientIndex].address, &packet);
|
||||
|
||||
//unload client and server-side characters
|
||||
for (std::map<int, CharacterData>::iterator it = characterMap.begin(); it != characterMap.end(); /* EMPTY */ ) {
|
||||
if (it->second.owner == packet.clientInfo.accountIndex) {
|
||||
PumpCharacterUnload(it->first);
|
||||
SaveCharacter(it->first);
|
||||
it = characterMap.erase(it); //efficient
|
||||
continue;
|
||||
}
|
||||
else {
|
||||
++it;
|
||||
}
|
||||
}
|
||||
|
||||
//erase the in-memory stuff
|
||||
clientMap.erase(accountMap[packet.clientInfo.accountIndex].clientIndex);
|
||||
UnloadUserAccount(packet.clientInfo.accountIndex);
|
||||
|
||||
//finished this routine
|
||||
std::cout << "Disconnect, total: " << clientMap.size() << std::endl;
|
||||
}
|
||||
|
||||
void ServerApplication::HandleShutdown(SerialPacket packet) {
|
||||
//TODO: authenticate who is shutting the server down
|
||||
|
||||
//end the server
|
||||
running = false;
|
||||
|
||||
//disconnect all clients
|
||||
packet.meta.type = SerialPacket::Type::DISCONNECT;
|
||||
PumpPacket(packet);
|
||||
|
||||
//finished this routine
|
||||
std::cout << "Shutdown signal accepted" << std::endl;
|
||||
}
|
||||
|
||||
void ServerApplication::HandleCharacterUpdate(SerialPacket packet) {
|
||||
//TODO: this should be moved elsewhere
|
||||
if (characterMap.find(packet.characterInfo.characterIndex) == characterMap.end()) {
|
||||
throw(std::runtime_error("Cannot update a non-existant character"));
|
||||
}
|
||||
|
||||
//TODO: the server needs it's own movement system too
|
||||
characterMap[packet.characterInfo.characterIndex].origin = packet.characterInfo.origin;
|
||||
characterMap[packet.characterInfo.characterIndex].motion = packet.characterInfo.motion;
|
||||
|
||||
PumpPacket(packet);
|
||||
}
|
||||
|
||||
void ServerApplication::HandleRegionRequest(SerialPacket packet) {
|
||||
//TODO: this should be moved elsewhere
|
||||
packet.meta.type = SerialPacket::Type::REGION_CONTENT;
|
||||
packet.regionInfo.region = regionPager.GetRegion(packet.regionInfo.x, packet.regionInfo.y);
|
||||
|
||||
//send the content
|
||||
network.SendTo(&packet.meta.srcAddress, &packet);
|
||||
}
|
||||
|
||||
void ServerApplication::PumpPacket(SerialPacket packet) {
|
||||
//NOTE: I don't really like this, but it'll do for now
|
||||
for (auto& it : clientMap) {
|
||||
network.SendTo(&it.second.address, &packet);
|
||||
}
|
||||
}
|
||||
|
||||
void ServerApplication::PumpCharacterUnload(int uid) {
|
||||
//delete the client-side character(s)
|
||||
SerialPacket delPacket;
|
||||
delPacket.meta.type = SerialPacket::Type::CHARACTER_DELETE;
|
||||
delPacket.characterInfo.characterIndex = uid;
|
||||
PumpPacket(delPacket);
|
||||
}
|
||||
|
||||
//-------------------------
|
||||
//Define the utility methods
|
||||
//-------------------------
|
||||
|
||||
//TODO: utility methods
|
||||
|
||||
Reference in New Issue
Block a user