ddnet/src/game/server/gamecontext.cpp

/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com.                */
#include <new>
#include <base/math.h>
#include <engine/shared/config.h>
#include <engine/map.h>
#include <engine/console.h>
#include "gamecontext.h"
#include <game/version.h>
#include <game/collision.h>
#include <game/gamecore.h>
#include "gamemodes/dm.h"
#include "gamemodes/tdm.h"
#include "gamemodes/ctf.h"
#include "gamemodes/mod.h"

enum
{
	RESET,
	NO_RESET
};

void CGameContext::Construct(int Resetting)
{
	m_Resetting = 0;
	m_pServer = 0;
	
	for(int i = 0; i < MAX_CLIENTS; i++)
		m_apPlayers[i] = 0;
	
	m_pController = 0;
	m_VoteCloseTime = 0;
	m_pVoteOptionFirst = 0;
	m_pVoteOptionLast = 0;

	if(Resetting==NO_RESET)
		m_pVoteOptionHeap = new CHeap();
}

CGameContext::CGameContext(int Resetting)
{
	Construct(Resetting);
}

CGameContext::CGameContext()
{
	Construct(NO_RESET);
}

CGameContext::~CGameContext()
{
	for(int i = 0; i < MAX_CLIENTS; i++)
		delete m_apPlayers[i];
	if(!m_Resetting)
		delete m_pVoteOptionHeap;
}

void CGameContext::Clear()
{
	CHeap *pVoteOptionHeap = m_pVoteOptionHeap;
	CVoteOption *pVoteOptionFirst = m_pVoteOptionFirst;
	CVoteOption *pVoteOptionLast = m_pVoteOptionLast;
	CTuningParams Tuning = m_Tuning;

	m_Resetting = true;
	this->~CGameContext();
	mem_zero(this, sizeof(*this));
	new (this) CGameContext(RESET);

	m_pVoteOptionHeap = pVoteOptionHeap;
	m_pVoteOptionFirst = pVoteOptionFirst;
	m_pVoteOptionLast = pVoteOptionLast;
	m_Tuning = Tuning;
}


class CCharacter *CGameContext::GetPlayerChar(int ClientID)
{
	if(ClientID < 0 || ClientID >= MAX_CLIENTS || !m_apPlayers[ClientID])
		return 0;
	return m_apPlayers[ClientID]->GetCharacter();
}

void CGameContext::CreateDamageInd(vec2 Pos, float Angle, int Amount)
{
	float a = 3 * 3.14159f / 2 + Angle;
	//float a = get_angle(dir);
	float s = a-pi/3;
	float e = a+pi/3;
	for(int i = 0; i < Amount; i++)
	{
		float f = mix(s, e, float(i+1)/float(Amount+2));
		NETEVENT_DAMAGEIND *pEvent = (NETEVENT_DAMAGEIND *)m_Events.Create(NETEVENTTYPE_DAMAGEIND, sizeof(NETEVENT_DAMAGEIND));
		if(pEvent)
		{
			pEvent->m_X = (int)Pos.x;
			pEvent->m_Y = (int)Pos.y;
			pEvent->m_Angle = (int)(f*256.0f);
		}
	}
}

void CGameContext::CreateHammerHit(vec2 Pos)
{
	// create the event
	NETEVENT_HAMMERHIT *pEvent = (NETEVENT_HAMMERHIT *)m_Events.Create(NETEVENTTYPE_HAMMERHIT, sizeof(NETEVENT_HAMMERHIT));
	if(pEvent)
	{
		pEvent->m_X = (int)Pos.x;
		pEvent->m_Y = (int)Pos.y;
	}
}


void CGameContext::CreateExplosion(vec2 Pos, int Owner, int Weapon, bool NoDamage)
{
	// create the event
	NETEVENT_EXPLOSION *pEvent = (NETEVENT_EXPLOSION *)m_Events.Create(NETEVENTTYPE_EXPLOSION, sizeof(NETEVENT_EXPLOSION));
	if(pEvent)
	{
		pEvent->m_X = (int)Pos.x;
		pEvent->m_Y = (int)Pos.y;
	}

	if (!NoDamage)
	{
		// deal damage
		CCharacter *apEnts[MAX_CLIENTS];
		float Radius = 135.0f;
		float InnerRadius = 48.0f;
		int Num = m_World.FindEntities(Pos, Radius, (CEntity**)apEnts, MAX_CLIENTS, CGameWorld::ENTTYPE_CHARACTER);
		for(int i = 0; i < Num; i++)
		{
			vec2 Diff = apEnts[i]->m_Pos - Pos;
			vec2 ForceDir(0,1);
			float l = length(Diff);
			if(l)
				ForceDir = normalize(Diff);
			l = 1-clamp((l-InnerRadius)/(Radius-InnerRadius), 0.0f, 1.0f);
			float Dmg = 6 * l;
			if((int)Dmg)
				apEnts[i]->TakeDamage(ForceDir*Dmg*2, (int)Dmg, Owner, Weapon);
		}
	}
}

/*
void create_smoke(vec2 Pos)
{
	// create the event
	EV_EXPLOSION *pEvent = (EV_EXPLOSION *)events.create(EVENT_SMOKE, sizeof(EV_EXPLOSION));
	if(pEvent)
	{
		pEvent->x = (int)Pos.x;
		pEvent->y = (int)Pos.y;
	}
}*/

void CGameContext::CreatePlayerSpawn(vec2 Pos)
{
	// create the event
	NETEVENT_SPAWN *ev = (NETEVENT_SPAWN *)m_Events.Create(NETEVENTTYPE_SPAWN, sizeof(NETEVENT_SPAWN));
	if(ev)
	{
		ev->m_X = (int)Pos.x;
		ev->m_Y = (int)Pos.y;
	}
}

void CGameContext::CreateDeath(vec2 Pos, int ClientID)
{
	// create the event
	NETEVENT_DEATH *pEvent = (NETEVENT_DEATH *)m_Events.Create(NETEVENTTYPE_DEATH, sizeof(NETEVENT_DEATH));
	if(pEvent)
	{
		pEvent->m_X = (int)Pos.x;
		pEvent->m_Y = (int)Pos.y;
		pEvent->m_ClientID = ClientID;
	}
}

void CGameContext::CreateSound(vec2 Pos, int Sound, int Mask)
{
	if (Sound < 0)
		return;

	// create a sound
	NETEVENT_SOUNDWORLD *pEvent = (NETEVENT_SOUNDWORLD *)m_Events.Create(NETEVENTTYPE_SOUNDWORLD, sizeof(NETEVENT_SOUNDWORLD), Mask);
	if(pEvent)
	{
		pEvent->m_X = (int)Pos.x;
		pEvent->m_Y = (int)Pos.y;
		pEvent->m_SoundID = Sound;
	}
}

void CGameContext::CreateSoundGlobal(int Sound, int Target)
{
	if (Sound < 0)
		return;

	CNetMsg_Sv_SoundGlobal Msg;
	Msg.m_SoundID = Sound;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, Target);
}


void CGameContext::SendChatTarget(int To, const char *pText)
{
	CNetMsg_Sv_Chat Msg;
	Msg.m_Team = 0;
	Msg.m_ClientID = -1;
	Msg.m_pMessage = pText;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, To);
}


void CGameContext::SendChat(int ChatterClientID, int Team, const char *pText)
{
	char aBuf[256];
	if(ChatterClientID >= 0 && ChatterClientID < MAX_CLIENTS)
		str_format(aBuf, sizeof(aBuf), "%d:%d:%s: %s", ChatterClientID, Team, Server()->ClientName(ChatterClientID), pText);
	else
		str_format(aBuf, sizeof(aBuf), "*** %s", pText);
	Console()->Print(IConsole::OUTPUT_LEVEL_ADDINFO, "chat", aBuf);

	if(Team == CHAT_ALL)
	{
		CNetMsg_Sv_Chat Msg;
		Msg.m_Team = 0;
		Msg.m_ClientID = ChatterClientID;
		Msg.m_pMessage = pText;
		Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, -1);
	}
	else
	{
		CNetMsg_Sv_Chat Msg;
		Msg.m_Team = 1;
		Msg.m_ClientID = ChatterClientID;
		Msg.m_pMessage = pText;
		
		// pack one for the recording only
		Server()->SendPackMsg(&Msg, MSGFLAG_VITAL|MSGFLAG_NOSEND, -1);

		// send to the clients
		for(int i = 0; i < MAX_CLIENTS; i++)
		{
			if(m_apPlayers[i] && m_apPlayers[i]->GetTeam() == Team)
				Server()->SendPackMsg(&Msg, MSGFLAG_VITAL|MSGFLAG_NORECORD, i);
		}
	}
}

void CGameContext::SendEmoticon(int ClientID, int Emoticon)
{
	CNetMsg_Sv_Emoticon Msg;
	Msg.m_ClientID = ClientID;
	Msg.m_Emoticon = Emoticon;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, -1);
}

void CGameContext::SendWeaponPickup(int ClientID, int Weapon)
{
	CNetMsg_Sv_WeaponPickup Msg;
	Msg.m_Weapon = Weapon;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, ClientID);
}


void CGameContext::SendBroadcast(const char *pText, int ClientID)
{
	CNetMsg_Sv_Broadcast Msg;
	Msg.m_pMessage = pText;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, ClientID);
}

// 
void CGameContext::StartVote(const char *pDesc, const char *pCommand)
{
	// check if a vote is already running
	if(m_VoteCloseTime)
		return;

	// reset votes
	m_VoteEnforce = VOTE_ENFORCE_UNKNOWN;
	for(int i = 0; i < MAX_CLIENTS; i++)
	{
		if(m_apPlayers[i])
		{
			m_apPlayers[i]->m_Vote = 0;
			m_apPlayers[i]->m_VotePos = 0;
		}
	}
	
	// start vote
	m_VoteCloseTime = time_get() + time_freq()*25;
	str_copy(m_aVoteDescription, pDesc, sizeof(m_aVoteDescription));
	str_copy(m_aVoteCommand, pCommand, sizeof(m_aVoteCommand));
	SendVoteSet(-1);
	m_VoteUpdate = true;
}


void CGameContext::EndVote()
{
	m_VoteCloseTime = 0;
	SendVoteSet(-1);
}

void CGameContext::SendVoteSet(int ClientID)
{
	CNetMsg_Sv_VoteSet Msg;
	if(m_VoteCloseTime)
	{
		Msg.m_Timeout = (m_VoteCloseTime-time_get())/time_freq();
		Msg.m_pDescription = m_aVoteDescription;
	}
	else
	{
		Msg.m_Timeout = 0;
		Msg.m_pDescription = "";
	}
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, ClientID);
}

void CGameContext::SendVoteStatus(int ClientID, int Total, int Yes, int No)
{
	CNetMsg_Sv_VoteStatus Msg = {0};
	Msg.m_Total = Total;
	Msg.m_Yes = Yes;
	Msg.m_No = No;
	Msg.m_Pass = Total - (Yes+No);

	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, ClientID);
	
}

void CGameContext::AbortVoteKickOnDisconnect(int ClientID)
{
	if(m_VoteCloseTime && !str_comp_num(m_aVoteCommand, "kick ", 5) && str_toint(&m_aVoteCommand[5]) == ClientID)
		m_VoteCloseTime = -1;
}


void CGameContext::CheckPureTuning()
{
	// might not be created yet during start up
	if(!m_pController)
		return;
	
	if(	str_comp(m_pController->m_pGameType, "DM")==0 ||
		str_comp(m_pController->m_pGameType, "TDM")==0 ||
		str_comp(m_pController->m_pGameType, "CTF")==0)
	{
		CTuningParams p;
		if(mem_comp(&p, &m_Tuning, sizeof(p)) != 0)
		{
			Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", "resetting tuning due to pure server");
			m_Tuning = p;
		}
	}	
}

void CGameContext::SendTuningParams(int ClientID)
{
	CheckPureTuning();
	
	CMsgPacker Msg(NETMSGTYPE_SV_TUNEPARAMS);
	int *pParams = (int *)&m_Tuning;
	for(unsigned i = 0; i < sizeof(m_Tuning)/sizeof(int); i++)
		Msg.AddInt(pParams[i]);
	Server()->SendMsg(&Msg, MSGFLAG_VITAL, ClientID);
}

void CGameContext::OnTick()
{
	// check tuning
	CheckPureTuning();

	// copy tuning
	m_World.m_Core.m_Tuning = m_Tuning;
	m_World.Tick();

	//if(world.paused) // make sure that the game object always updates
	m_pController->Tick();
		
	for(int i = 0; i < MAX_CLIENTS; i++)
	{
		if(m_apPlayers[i])
		{
			m_apPlayers[i]->Tick();
			m_apPlayers[i]->PostTick();
		}
	}
	
	// update voting
	if(m_VoteCloseTime)
	{
		// abort the kick-vote on player-leave
		if(m_VoteCloseTime == -1)
		{
			SendChat(-1, CGameContext::CHAT_ALL, "Vote aborted");
			EndVote();
		}
		else
		{
			int Total = 0, Yes = 0, No = 0;
			if(m_VoteUpdate)
			{
				// count votes
				char aaBuf[MAX_CLIENTS][64] = {{0}};
				for(int i = 0; i < MAX_CLIENTS; i++)
					if(m_apPlayers[i])
						Server()->GetClientIP(i, aaBuf[i], 64);
				bool aVoteChecked[MAX_CLIENTS] = {0};
				for(int i = 0; i < MAX_CLIENTS; i++)
				{
					if(!m_apPlayers[i] || m_apPlayers[i]->GetTeam() == TEAM_SPECTATORS || aVoteChecked[i])	// don't count in votes by spectators
						continue;
					
					int ActVote = m_apPlayers[i]->m_Vote;
					int ActVotePos = m_apPlayers[i]->m_VotePos;
					
					// check for more players with the same ip (only use the vote of the one who voted first)
					for(int j = i+1; j < MAX_CLIENTS; ++j)
					{
						if(!m_apPlayers[j] || aVoteChecked[j] || str_comp(aaBuf[j], aaBuf[i]))
							continue;

						aVoteChecked[j] = true;
						if(m_apPlayers[j]->m_Vote && (!ActVote || ActVotePos > m_apPlayers[j]->m_VotePos))
						{
							ActVote = m_apPlayers[j]->m_Vote;
							ActVotePos = m_apPlayers[j]->m_VotePos;
						}
					}

					Total++;
					if(ActVote > 0)
						Yes++;
					else if(ActVote < 0)
						No++;
				}

				if(Yes >= Total/2+1)
					m_VoteEnforce = VOTE_ENFORCE_YES;
				else if(No >= (Total+1)/2)
					m_VoteEnforce = VOTE_ENFORCE_NO;
			}
			
			if(m_VoteEnforce == VOTE_ENFORCE_YES)
			{
				Console()->ExecuteLine(m_aVoteCommand);
				EndVote();
				SendChat(-1, CGameContext::CHAT_ALL, "Vote passed");
			
				if(m_apPlayers[m_VoteCreator])
					m_apPlayers[m_VoteCreator]->m_LastVoteCall = 0;
			}
			else if(m_VoteEnforce == VOTE_ENFORCE_NO || time_get() > m_VoteCloseTime)
			{
				EndVote();
				SendChat(-1, CGameContext::CHAT_ALL, "Vote failed");
			}
			else if(m_VoteUpdate)
			{
				m_VoteUpdate = false;
				SendVoteStatus(-1, Total, Yes, No);
			}
		}
	}
	

#ifdef CONF_DEBUG
	if(g_Config.m_DbgDummies)
	{
		for(int i = 0; i < g_Config.m_DbgDummies ; i++)
		{
			CNetObj_PlayerInput Input = {0};
			Input.m_Direction = (i&1)?-1:1;
			m_apPlayers[MAX_CLIENTS-i-1]->OnPredictedInput(&Input);
		}
	}
#endif	
}

// Server hooks
void CGameContext::OnClientDirectInput(int ClientID, void *pInput)
{
	if(!m_World.m_Paused)
		m_apPlayers[ClientID]->OnDirectInput((CNetObj_PlayerInput *)pInput);
}

void CGameContext::OnClientPredictedInput(int ClientID, void *pInput)
{
	if(!m_World.m_Paused)
		m_apPlayers[ClientID]->OnPredictedInput((CNetObj_PlayerInput *)pInput);
}

void CGameContext::OnClientEnter(int ClientID)
{
	//world.insert_entity(&players[client_id]);
	m_apPlayers[ClientID]->Respawn();
	char aBuf[512];
	str_format(aBuf, sizeof(aBuf), "'%s' entered and joined the %s", Server()->ClientName(ClientID), m_pController->GetTeamName(m_apPlayers[ClientID]->GetTeam()));
	SendChat(-1, CGameContext::CHAT_ALL, aBuf); 

	str_format(aBuf, sizeof(aBuf), "team_join player='%d:%s' team=%d", ClientID, Server()->ClientName(ClientID), m_apPlayers[ClientID]->GetTeam());
	Console()->Print(IConsole::OUTPUT_LEVEL_DEBUG, "game", aBuf);

	m_VoteUpdate = true;
}

void CGameContext::OnClientConnected(int ClientID)
{
	// Check which team the player should be on
	const int StartTeam = g_Config.m_SvTournamentMode ? TEAM_SPECTATORS : m_pController->GetAutoTeam(ClientID);

	m_apPlayers[ClientID] = new(ClientID) CPlayer(this, ClientID, StartTeam);
	//players[client_id].init(client_id);
	//players[client_id].client_id = client_id;
	
	(void)m_pController->CheckTeamBalance();

#ifdef CONF_DEBUG
	if(g_Config.m_DbgDummies)
	{
		if(ClientID >= MAX_CLIENTS-g_Config.m_DbgDummies)
			return;
	}
#endif

	// send active vote
	if(m_VoteCloseTime)
		SendVoteSet(ClientID);

	// send motd
	CNetMsg_Sv_Motd Msg;
	Msg.m_pMessage = g_Config.m_SvMotd;
	Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, ClientID);
}

void CGameContext::OnClientDrop(int ClientID)
{
	AbortVoteKickOnDisconnect(ClientID);
	m_apPlayers[ClientID]->OnDisconnect();
	delete m_apPlayers[ClientID];
	m_apPlayers[ClientID] = 0;
	
	(void)m_pController->CheckTeamBalance();
	m_VoteUpdate = true;

	// update spectator modes
	for(int i = 0; i < MAX_CLIENTS; ++i)
	{
		if(m_apPlayers[i] && m_apPlayers[i]->m_SpectatorID == ClientID)
			m_apPlayers[i]->m_SpectatorID = SPEC_FREEVIEW;
	}
}

void CGameContext::OnMessage(int MsgID, CUnpacker *pUnpacker, int ClientID)
{
	void *pRawMsg = m_NetObjHandler.SecureUnpackMsg(MsgID, pUnpacker);
	CPlayer *pPlayer = m_apPlayers[ClientID];
	
	if(!pRawMsg)
	{
		char aBuf[256];
		str_format(aBuf, sizeof(aBuf), "dropped weird message '%s' (%d), failed on '%s'", m_NetObjHandler.GetMsgName(MsgID), MsgID, m_NetObjHandler.FailedMsgOn());
		Console()->Print(IConsole::OUTPUT_LEVEL_ADDINFO, "server", aBuf);
		return;
	}
	
	if(MsgID == NETMSGTYPE_CL_SAY)
	{
		CNetMsg_Cl_Say *pMsg = (CNetMsg_Cl_Say *)pRawMsg;
		int Team = pMsg->m_Team;
		if(Team)
			Team = pPlayer->GetTeam();
		else
			Team = CGameContext::CHAT_ALL;
		
		if(g_Config.m_SvSpamprotection && pPlayer->m_LastChat && pPlayer->m_LastChat+Server()->TickSpeed() > Server()->Tick())
			return;
		
		pPlayer->m_LastChat = Server()->Tick();

		// check for invalid chars
		unsigned char *pMessage = (unsigned char *)pMsg->m_pMessage;
		while (*pMessage)
		{
			if(*pMessage < 32)
				*pMessage = ' ';
			pMessage++;
		}
		
		SendChat(ClientID, Team, pMsg->m_pMessage);
	}
	else if(MsgID == NETMSGTYPE_CL_CALLVOTE)
	{
		if(g_Config.m_SvSpamprotection && pPlayer->m_LastVoteTry && pPlayer->m_LastVoteTry+Server()->TickSpeed()*3 > Server()->Tick())
			return;

		int64 Now = Server()->Tick();
		pPlayer->m_LastVoteTry = Now;
		if(pPlayer->GetTeam() == TEAM_SPECTATORS)
		{
			SendChatTarget(ClientID, "Spectators aren't allowed to start a vote.");
			return;
		}

		if(m_VoteCloseTime)
		{
			SendChatTarget(ClientID, "Wait for current vote to end before calling a new one.");
			return;
		}
		
		int Timeleft = pPlayer->m_LastVoteCall + Server()->TickSpeed()*60 - Now;
		if(pPlayer->m_LastVoteCall && Timeleft > 0)
		{
			char aChatmsg[512] = {0};
			str_format(aChatmsg, sizeof(aChatmsg), "You must wait %d seconds before making another vote", (Timeleft/Server()->TickSpeed())+1);
			SendChatTarget(ClientID, aChatmsg);
			return;
		}
		
		char aChatmsg[512] = {0};
		char aDesc[512] = {0};
		char aCmd[512] = {0};
		CNetMsg_Cl_CallVote *pMsg = (CNetMsg_Cl_CallVote *)pRawMsg;
		if(str_comp_nocase(pMsg->m_Type, "option") == 0)
		{
			CVoteOption *pOption = m_pVoteOptionFirst;
			while(pOption)
			{
				if(str_comp_nocase(pMsg->m_Value, pOption->m_aDescription) == 0)
				{
					str_format(aChatmsg, sizeof(aChatmsg), "'%s' called vote to change server option '%s'", Server()->ClientName(ClientID), pOption->m_aDescription);
					str_format(aDesc, sizeof(aDesc), "%s", pOption->m_aCommand);
					str_format(aCmd, sizeof(aCmd), "%s", pOption->m_aCommand);
					break;
				}

				pOption = pOption->m_pNext;
			}
			
			if(!pOption)
			{
				str_format(aChatmsg, sizeof(aChatmsg), "'%s' isn't an option on this server", pMsg->m_Value);
				SendChatTarget(ClientID, aChatmsg);
				return;
			}
		}
		else if(str_comp_nocase(pMsg->m_Type, "kick") == 0)
		{
			if(!g_Config.m_SvVoteKick)
			{
				SendChatTarget(ClientID, "Server does not allow voting to kick players");
				return;
			}

			if(g_Config.m_SvVoteKickMin)
			{
				int PlayerNum = 0;
				for(int i = 0; i < MAX_CLIENTS; ++i)
					if(m_apPlayers[i] && m_apPlayers[i]->GetTeam() != TEAM_SPECTATORS)
						++PlayerNum;

				if(PlayerNum < g_Config.m_SvVoteKickMin)
				{
					str_format(aChatmsg, sizeof(aChatmsg), "Kick voting requires %d players on the server", g_Config.m_SvVoteKickMin);
					SendChatTarget(ClientID, aChatmsg);
					return;
				}
			}
			
			int KickID = str_toint(pMsg->m_Value);
			if(KickID < 0 || KickID >= MAX_CLIENTS || !m_apPlayers[KickID])
			{
				SendChatTarget(ClientID, "Invalid client id to kick");
				return;
			}
			if(KickID == ClientID)
			{
				SendChatTarget(ClientID, "You cant kick yourself");
				return;
			}
			if(Server()->IsAuthed(KickID))
			{
				SendChatTarget(ClientID, "You cant kick admins");
				char aBufKick[128];
				str_format(aBufKick, sizeof(aBufKick), "'%s' called for vote to kick you", Server()->ClientName(ClientID));
				SendChatTarget(KickID, aBufKick);
				return;
			}
			
			const char *pReason = "No reason given";
			for(const char *pStr = pMsg->m_Value; *pStr; ++pStr)
			{
				if(*pStr == ' ')
				{
					pReason = pStr+1;
					break;
				}
			}
			
			str_format(aChatmsg, sizeof(aChatmsg), "'%s' called for vote to kick '%s' (%s)", Server()->ClientName(ClientID), Server()->ClientName(KickID), pReason);
			str_format(aDesc, sizeof(aDesc), "Kick '%s'", Server()->ClientName(KickID));
			if (!g_Config.m_SvVoteKickBantime)
				str_format(aCmd, sizeof(aCmd), "kick %d Kicked by vote", KickID);
			else
			{
				char aBuf[64] = {0};
				Server()->GetClientIP(KickID, aBuf, sizeof(aBuf));
				str_format(aCmd, sizeof(aCmd), "ban %s %d Banned by vote", aBuf, g_Config.m_SvVoteKickBantime);
			}
		}
		
		if(aCmd[0])
		{
			SendChat(-1, CGameContext::CHAT_ALL, aChatmsg);
			StartVote(aDesc, aCmd);
			pPlayer->m_Vote = 1;
			pPlayer->m_VotePos = m_VotePos = 1;
			m_VoteCreator = ClientID;
			pPlayer->m_LastVoteCall = Now;
		}
	}
	else if(MsgID == NETMSGTYPE_CL_VOTE)
	{
		if(!m_VoteCloseTime)
			return;

		if(pPlayer->m_Vote == 0)
		{
			CNetMsg_Cl_Vote *pMsg = (CNetMsg_Cl_Vote *)pRawMsg;
			if(!pMsg->m_Vote)
				return;

			pPlayer->m_Vote = pMsg->m_Vote;
			pPlayer->m_VotePos = ++m_VotePos;
			m_VoteUpdate = true;
		}
	}
	else if (MsgID == NETMSGTYPE_CL_SETTEAM && !m_World.m_Paused)
	{
		CNetMsg_Cl_SetTeam *pMsg = (CNetMsg_Cl_SetTeam *)pRawMsg;
		
		if(pPlayer->GetTeam() == pMsg->m_Team || (g_Config.m_SvSpamprotection && pPlayer->m_LastSetTeam && pPlayer->m_LastSetTeam+Server()->TickSpeed()*3 > Server()->Tick()))
			return;

		// Switch team on given client and kill/respawn him
		if(m_pController->CanJoinTeam(pMsg->m_Team, ClientID))
		{
			if(m_pController->CanChangeTeam(pPlayer, pMsg->m_Team))
			{
				pPlayer->m_LastSetTeam = Server()->Tick();
				if(pPlayer->GetTeam() == TEAM_SPECTATORS || pMsg->m_Team == TEAM_SPECTATORS)
					m_VoteUpdate = true;
				pPlayer->SetTeam(pMsg->m_Team);
				(void)m_pController->CheckTeamBalance();
			}
			else
				SendBroadcast("Teams must be balanced, please join other team", ClientID);
		}
		else
		{
			char aBuf[128];
			str_format(aBuf, sizeof(aBuf), "Only %d active players are allowed", g_Config.m_SvMaxClients-g_Config.m_SvSpectatorSlots);
			SendBroadcast(aBuf, ClientID);
		}
	}
	else if (MsgID == NETMSGTYPE_CL_SETSPECTATORMODE && !m_World.m_Paused)
	{
		CNetMsg_Cl_SetSpectatorMode *pMsg = (CNetMsg_Cl_SetSpectatorMode *)pRawMsg;
		
		if(pPlayer->GetTeam() != TEAM_SPECTATORS || pPlayer->m_SpectatorID == pMsg->m_SpectatorID || ClientID == pMsg->m_SpectatorID ||
			(g_Config.m_SvSpamprotection && pPlayer->m_LastSetSpectatorMode && pPlayer->m_LastSetSpectatorMode+Server()->TickSpeed()*3 > Server()->Tick()))
			return;

		pPlayer->m_LastSetSpectatorMode = Server()->Tick();
		if(pMsg->m_SpectatorID != SPEC_FREEVIEW && !m_apPlayers[pMsg->m_SpectatorID])
			SendChatTarget(ClientID, "Invalid spectator id used");
		else
			pPlayer->m_SpectatorID = pMsg->m_SpectatorID;
	}
	else if (MsgID == NETMSGTYPE_CL_STARTINFO)
	{		
		if(pPlayer->m_IsReady)
			return;

		CNetMsg_Cl_StartInfo *pMsg = (CNetMsg_Cl_StartInfo *)pRawMsg;	
		pPlayer->m_LastChangeInfo = Server()->Tick();
		
		// set start infos
		Server()->SetClientName(ClientID, pMsg->m_pName);
		Server()->SetClientClan(ClientID, pMsg->m_pClan);
		Server()->SetClientCountry(ClientID, pMsg->m_Country);
		str_copy(pPlayer->m_TeeInfos.m_SkinName, pMsg->m_pSkin, sizeof(pPlayer->m_TeeInfos.m_SkinName));
		pPlayer->m_TeeInfos.m_UseCustomColor = pMsg->m_UseCustomColor;
		pPlayer->m_TeeInfos.m_ColorBody = pMsg->m_ColorBody;
		pPlayer->m_TeeInfos.m_ColorFeet = pMsg->m_ColorFeet;
		m_pController->OnPlayerInfoChange(pPlayer);

		// send vote options
		CNetMsg_Sv_VoteClearOptions ClearMsg;
		Server()->SendPackMsg(&ClearMsg, MSGFLAG_VITAL, ClientID);
		CVoteOption *pCurrent = m_pVoteOptionFirst;
		while(pCurrent)
		{
			CNetMsg_Sv_VoteOption OptionMsg;
			OptionMsg.m_pDescription = pCurrent->m_aDescription;
			Server()->SendPackMsg(&OptionMsg, MSGFLAG_VITAL, ClientID);
			pCurrent = pCurrent->m_pNext;
		}
			
		// send tuning parameters to client
		SendTuningParams(ClientID);

		// client is ready to enter
		pPlayer->m_IsReady = true;
		CNetMsg_Sv_ReadyToEnter m;
		Server()->SendPackMsg(&m, MSGFLAG_VITAL|MSGFLAG_FLUSH, ClientID);
	}
	else if (MsgID == NETMSGTYPE_CL_CHANGEINFO)
	{	
		if(g_Config.m_SvSpamprotection && pPlayer->m_LastChangeInfo && pPlayer->m_LastChangeInfo+Server()->TickSpeed()*5 > Server()->Tick())
			return;
		
		CNetMsg_Cl_ChangeInfo *pMsg = (CNetMsg_Cl_ChangeInfo *)pRawMsg;
		pPlayer->m_LastChangeInfo = Server()->Tick();
		
		// set infos
		char aOldName[MAX_NAME_LENGTH];
		str_copy(aOldName, Server()->ClientName(ClientID), sizeof(aOldName));	
		Server()->SetClientName(ClientID, pMsg->m_pName);
		if(str_comp(aOldName, Server()->ClientName(ClientID)) != 0)
		{
			char aChatText[256];
			str_format(aChatText, sizeof(aChatText), "'%s' changed name to '%s'", aOldName, Server()->ClientName(ClientID));
			SendChat(-1, CGameContext::CHAT_ALL, aChatText);
		}
		Server()->SetClientClan(ClientID, pMsg->m_pClan);
		Server()->SetClientCountry(ClientID, pMsg->m_Country);
		str_copy(pPlayer->m_TeeInfos.m_SkinName, pMsg->m_pSkin, sizeof(pPlayer->m_TeeInfos.m_SkinName));
		pPlayer->m_TeeInfos.m_UseCustomColor = pMsg->m_UseCustomColor;
		pPlayer->m_TeeInfos.m_ColorBody = pMsg->m_ColorBody;
		pPlayer->m_TeeInfos.m_ColorFeet = pMsg->m_ColorFeet;
		m_pController->OnPlayerInfoChange(pPlayer);
	}
	else if (MsgID == NETMSGTYPE_CL_EMOTICON && !m_World.m_Paused)
	{
		CNetMsg_Cl_Emoticon *pMsg = (CNetMsg_Cl_Emoticon *)pRawMsg;
		
		if(g_Config.m_SvSpamprotection && pPlayer->m_LastEmote && pPlayer->m_LastEmote+Server()->TickSpeed()*3 > Server()->Tick())
			return;
			
		pPlayer->m_LastEmote = Server()->Tick();
		
		SendEmoticon(ClientID, pMsg->m_Emoticon);
	}
	else if (MsgID == NETMSGTYPE_CL_KILL && !m_World.m_Paused)
	{
		if(pPlayer->m_LastKill && pPlayer->m_LastKill+Server()->TickSpeed()*3 > Server()->Tick())
			return;
		
		pPlayer->m_LastKill = Server()->Tick();
		pPlayer->KillCharacter(WEAPON_SELF);
		pPlayer->m_RespawnTick = Server()->Tick()+Server()->TickSpeed()*3;
	}
}

void CGameContext::ConTuneParam(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	const char *pParamName = pResult->GetString(0);
	float NewValue = pResult->GetFloat(1);

	if(pSelf->Tuning()->Set(pParamName, NewValue))
	{
		char aBuf[256];
		str_format(aBuf, sizeof(aBuf), "%s changed to %.2f", pParamName, NewValue);
		pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "tuning", aBuf);
		pSelf->SendTuningParams(-1);
	}
	else
		pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "tuning", "No such tuning parameter");
}

void CGameContext::ConTuneReset(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	CTuningParams TuningParams;
	*pSelf->Tuning() = TuningParams;
	pSelf->SendTuningParams(-1);
	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "tuning", "Tuning reset");
}

void CGameContext::ConTuneDump(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	char aBuf[256];
	for(int i = 0; i < pSelf->Tuning()->Num(); i++)
	{
		float v;
		pSelf->Tuning()->Get(i, &v);
		str_format(aBuf, sizeof(aBuf), "%s %.2f", pSelf->Tuning()->m_apNames[i], v);
		pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "tuning", aBuf);
	}
}

void CGameContext::ConChangeMap(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	pSelf->m_pController->ChangeMap(pResult->NumArguments() ? pResult->GetString(0) : "");
}

void CGameContext::ConRestart(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	if(pResult->NumArguments())
		pSelf->m_pController->DoWarmup(pResult->GetInteger(0));
	else
		pSelf->m_pController->StartRound();
}

void CGameContext::ConBroadcast(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	pSelf->SendBroadcast(pResult->GetString(0), -1);
}

void CGameContext::ConSay(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	pSelf->SendChat(-1, CGameContext::CHAT_ALL, pResult->GetString(0));
}

void CGameContext::ConSetTeam(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	int ClientID = clamp(pResult->GetInteger(0), 0, (int)MAX_CLIENTS-1);
	int Team = clamp(pResult->GetInteger(1), -1, 1);
	
	char aBuf[256];
	str_format(aBuf, sizeof(aBuf), "moved client %d to team %d", ClientID, Team);
	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);
	
	if(!pSelf->m_apPlayers[ClientID])
		return;
	
	pSelf->m_apPlayers[ClientID]->SetTeam(Team);
	(void)pSelf->m_pController->CheckTeamBalance();
}

void CGameContext::ConSetTeamAll(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	int Team = clamp(pResult->GetInteger(0), -1, 1);
	
	char aBuf[256];
	str_format(aBuf, sizeof(aBuf), "moved all clients to team %d", Team);
	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);
	
	for(int i = 0; i < MAX_CLIENTS; ++i)
		if(pSelf->m_apPlayers[i])
			pSelf->m_apPlayers[i]->SetTeam(Team);
	
	(void)pSelf->m_pController->CheckTeamBalance();
}

void CGameContext::ConAddVote(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	const char *pDescription = pResult->GetString(0);
	const char *pCommand = pResult->GetString(1);
	
	// check for valid option
	if(!pSelf->Console()->LineIsValid(pCommand))
	{
		char aBuf[256];
		str_format(aBuf, sizeof(aBuf), "skipped invalid option '%s'", pCommand);
		pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);
		return;
	}
	
	// check for duplicate entry
	CGameContext::CVoteOption *pOption = pSelf->m_pVoteOptionFirst;
	while(pOption)
	{
		if(str_comp_nocase(pDescription, pOption->m_aCommand) == 0)
		{
			char aBuf[256];
			str_format(aBuf, sizeof(aBuf), "option '%s' already exists", pDescription);
			pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);
			return;
		}
		pOption = pOption->m_pNext;
	}
	
	// add the option
	int Len = str_length(pCommand);
	
	pOption = (CGameContext::CVoteOption *)pSelf->m_pVoteOptionHeap->Allocate(sizeof(CGameContext::CVoteOption) + Len);
	pOption->m_pNext = 0;
	pOption->m_pPrev = pSelf->m_pVoteOptionLast;
	if(pOption->m_pPrev)
		pOption->m_pPrev->m_pNext = pOption;
	pSelf->m_pVoteOptionLast = pOption;
	if(!pSelf->m_pVoteOptionFirst)
		pSelf->m_pVoteOptionFirst = pOption;
	
	str_copy(pOption->m_aDescription, pDescription, sizeof(pOption->m_aDescription));
	mem_copy(pOption->m_aCommand, pCommand, Len+1);
	char aBuf[256];
	str_format(aBuf, sizeof(aBuf), "added option '%s' '%s'", pOption->m_aDescription, pOption->m_aCommand);
	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);

	// send added option to the clients
	CNetMsg_Sv_VoteOption OptionMsg;
	OptionMsg.m_pDescription = pOption->m_aDescription;
	pSelf->Server()->SendPackMsg(&OptionMsg, MSGFLAG_VITAL, -1);
}

void CGameContext::ConClearVotes(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;

	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", "cleared votes");
	CNetMsg_Sv_VoteClearOptions VoteClearOptionsMsg;
	pSelf->Server()->SendPackMsg(&VoteClearOptionsMsg, MSGFLAG_VITAL, -1);
	pSelf->m_pVoteOptionHeap->Reset();
	pSelf->m_pVoteOptionFirst = 0;
	pSelf->m_pVoteOptionLast = 0;
}

void CGameContext::ConVote(IConsole::IResult *pResult, void *pUserData)
{
	CGameContext *pSelf = (CGameContext *)pUserData;
	if(str_comp_nocase(pResult->GetString(0), "yes") == 0)
		pSelf->m_VoteEnforce = CGameContext::VOTE_ENFORCE_YES;
	else if(str_comp_nocase(pResult->GetString(0), "no") == 0)
		pSelf->m_VoteEnforce = CGameContext::VOTE_ENFORCE_NO;
	char aBuf[256];
	str_format(aBuf, sizeof(aBuf), "forcing vote %s", pResult->GetString(0));
	pSelf->Console()->Print(IConsole::OUTPUT_LEVEL_STANDARD, "server", aBuf);
}

void CGameContext::ConchainSpecialMotdupdate(IConsole::IResult *pResult, void *pUserData, IConsole::FCommandCallback pfnCallback, void *pCallbackUserData)
{
	pfnCallback(pResult, pCallbackUserData);
	if(pResult->NumArguments())
	{
		CNetMsg_Sv_Motd Msg;
		Msg.m_pMessage = g_Config.m_SvMotd;
		CGameContext *pSelf = (CGameContext *)pUserData;
		for(int i = 0; i < MAX_CLIENTS; ++i)
			if(pSelf->m_apPlayers[i])
				pSelf->Server()->SendPackMsg(&Msg, MSGFLAG_VITAL, i);
	}
}

void CGameContext::OnConsoleInit()
{
	m_pServer = Kernel()->RequestInterface<IServer>();
	m_pConsole = Kernel()->RequestInterface<IConsole>();

	Console()->Register("tune", "si", CFGFLAG_SERVER, ConTuneParam, this, "");
	Console()->Register("tune_reset", "", CFGFLAG_SERVER, ConTuneReset, this, "");
	Console()->Register("tune_dump", "", CFGFLAG_SERVER, ConTuneDump, this, "");

	Console()->Register("change_map", "?r", CFGFLAG_SERVER|CFGFLAG_STORE, ConChangeMap, this, "");
	Console()->Register("restart", "?i", CFGFLAG_SERVER|CFGFLAG_STORE, ConRestart, this, "");
	Console()->Register("broadcast", "r", CFGFLAG_SERVER, ConBroadcast, this, "");
	Console()->Register("say", "r", CFGFLAG_SERVER, ConSay, this, "");
	Console()->Register("set_team", "ii", CFGFLAG_SERVER, ConSetTeam, this, "");
	Console()->Register("set_team_all", "i", CFGFLAG_SERVER, ConSetTeamAll, this, "");

	Console()->Register("add_vote", "sr", CFGFLAG_SERVER, ConAddVote, this, "");
	Console()->Register("clear_votes", "", CFGFLAG_SERVER, ConClearVotes, this, "");
	Console()->Register("vote", "r", CFGFLAG_SERVER, ConVote, this, "");

	Console()->Chain("sv_motd", ConchainSpecialMotdupdate, this);
}

void CGameContext::OnInit(/*class IKernel *pKernel*/)
{
	m_pServer = Kernel()->RequestInterface<IServer>();
	m_pConsole = Kernel()->RequestInterface<IConsole>();
	m_World.SetGameServer(this);
	m_Events.SetGameServer(this);
	
	//if(!data) // only load once
		//data = load_data_from_memory(internal_data);
		
	for(int i = 0; i < NUM_NETOBJTYPES; i++)
		Server()->SnapSetStaticsize(i, m_NetObjHandler.GetObjSize(i));

	m_Layers.Init(Kernel());
	m_Collision.Init(&m_Layers);

	// reset everything here
	//world = new GAMEWORLD;
	//players = new CPlayer[MAX_CLIENTS];

	// select gametype
	if(str_comp(g_Config.m_SvGametype, "mod") == 0)
		m_pController = new CGameControllerMOD(this);
	else if(str_comp(g_Config.m_SvGametype, "ctf") == 0)
		m_pController = new CGameControllerCTF(this);
	else if(str_comp(g_Config.m_SvGametype, "tdm") == 0)
		m_pController = new CGameControllerTDM(this);
	else
		m_pController = new CGameControllerDM(this);

	// setup core world
	//for(int i = 0; i < MAX_CLIENTS; i++)
	//	game.players[i].core.world = &game.world.core;

	// create all entities from the game layer
	CMapItemLayerTilemap *pTileMap = m_Layers.GameLayer();
	CTile *pTiles = (CTile *)Kernel()->RequestInterface<IMap>()->GetData(pTileMap->m_Data);
	
	
	
	
	/*
	num_spawn_points[0] = 0;
	num_spawn_points[1] = 0;
	num_spawn_points[2] = 0;
	*/
	
	for(int y = 0; y < pTileMap->m_Height; y++)
	{
		for(int x = 0; x < pTileMap->m_Width; x++)
		{
			int Index = pTiles[y*pTileMap->m_Width+x].m_Index;
			
			if(Index >= ENTITY_OFFSET)
			{
				vec2 Pos(x*32.0f+16.0f, y*32.0f+16.0f);
				m_pController->OnEntity(Index-ENTITY_OFFSET, Pos);
			}
		}
	}

	//game.world.insert_entity(game.Controller);

#ifdef CONF_DEBUG
	if(g_Config.m_DbgDummies)
	{
		for(int i = 0; i < g_Config.m_DbgDummies ; i++)
		{
			OnClientConnected(MAX_CLIENTS-i-1);
		}
	}
#endif
}

void CGameContext::OnShutdown()
{
	delete m_pController;
	m_pController = 0;
	Clear();
}

void CGameContext::OnSnap(int ClientID)
{
	m_World.Snap(ClientID);
	m_pController->Snap(ClientID);
	m_Events.Snap(ClientID);
	
	for(int i = 0; i < MAX_CLIENTS; i++)
	{
		if(m_apPlayers[i])
			m_apPlayers[i]->Snap(ClientID);
	}
}
void CGameContext::OnPreSnap() {}
void CGameContext::OnPostSnap()
{
	m_Events.Clear();
}

bool CGameContext::IsClientReady(int ClientID)
{
	return m_apPlayers[ClientID] && m_apPlayers[ClientID]->m_IsReady ? true : false;
}

bool CGameContext::IsClientPlayer(int ClientID)
{
	return m_apPlayers[ClientID] && m_apPlayers[ClientID]->GetTeam() == TEAM_SPECTATORS ? false : true;
}

const char *CGameContext::GameType() { return m_pController && m_pController->m_pGameType ? m_pController->m_pGameType : ""; }
const char *CGameContext::Version() { return GAME_VERSION; }
const char *CGameContext::NetVersion() { return GAME_NETVERSION; }

IGameServer *CreateGameServer() { return new CGameContext; }