vcmi/server/CGameHandler.cpp

#include <boost/foreach.hpp>
#include <boost/thread.hpp>
#include <boost/thread/shared_mutex.hpp>
#include <boost/bind.hpp>
#include "CGameHandler.h"
#include "CScriptCallback.h"
#include "../CLua.h"
#include "../CGameState.h"
#include "../StartInfo.h"
#include "../map.h"
#include "../lib/NetPacks.h"
#include "../lib/Connection.h"
#include "../hch/CArtHandler.h"
#include "../hch/CObjectHandler.h"
#include "../hch/CSpellHandler.h"
#include "../hch/CTownHandler.h"
#include "../hch/CBuildingHandler.h"
#include "../hch/CHeroHandler.h"
#include "boost/date_time/posix_time/posix_time_types.hpp" //no i/o just types
#include "../lib/VCMI_Lib.h"
#include "../lib/CondSh.h"
#include <fstream>
#ifndef _MSC_VER
#include <boost/thread/xtime.hpp>
#endif
extern bool end2;
#include "../lib/BattleAction.h"
#ifdef min
#undef min
#endif
#ifdef max
#undef max
#endif
#define NEW_ROUND 		BattleNextRound bnr;\
		bnr.round = gs->curB->round + 1;\
		sendAndApply(&bnr);

boost::mutex gsm;
ui32 CGameHandler::QID = 1;

CondSh<bool> battleMadeAction;
CondSh<BattleResult *> battleResult(NULL);

std::map<ui32, CFunctionList<void(ui32)> > callbacks; //question id => callback function - for selection dialogs

class CMP_stack
{
public:
	bool operator ()(const CStack* a, const CStack* b)
	{
		return (a->creature->speed)>(b->creature->speed);
	}
} cmpst ;

double distance(int3 a, int3 b)
{
	return std::sqrt( (double)(a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) );
}
void giveExp(BattleResult &r)
{
	r.exp[0] = 0;
	r.exp[1] = 0;
	for(std::set<std::pair<ui32,si32> >::iterator i = r.casualties[!r.winner].begin(); i!=r.casualties[!r.winner].end(); i++)
	{
		r.exp[r.winner] += VLC->creh->creatures[i->first].hitPoints * i->second;
	}
}
//bool CGameState::checkFunc(int obid, std::string name)
//{
//	if (objscr.find(obid)!=objscr.end())
//	{
//		if(objscr[obid].find(name)!=objscr[obid].end())
//		{
//			return true;
//		}
//	}
//	return false;
//}
PlayerStatus PlayerStatuses::operator[](ui8 player)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		return players[player];
	}
	else
	{
		throw std::string("No such player!");
	}
}
void PlayerStatuses::addPlayer(ui8 player)
{
	boost::unique_lock<boost::mutex> l(mx);
	players[player];
}
bool PlayerStatuses::hasQueries(ui8 player)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		return players[player].queries.size();
	}
	else
	{
		throw std::string("No such player!");
	}
}
bool PlayerStatuses::checkFlag(ui8 player, bool PlayerStatus::*flag)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		return players[player].*flag;
	}
	else
	{
		throw std::string("No such player!");
	}
}
void PlayerStatuses::setFlag(ui8 player, bool PlayerStatus::*flag, bool val)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		players[player].*flag = val;
	}
	else
	{
		throw std::string("No such player!");
	}
	cv.notify_all();
}
void PlayerStatuses::addQuery(ui8 player, ui32 id)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		players[player].queries.insert(id);
	}
	else
	{
		throw std::string("No such player!");
	}
	cv.notify_all();
}
void PlayerStatuses::removeQuery(ui8 player, ui32 id)
{
	boost::unique_lock<boost::mutex> l(mx);
	if(players.find(player) != players.end())
	{
		players[player].queries.erase(id);
	}
	else
	{
		throw std::string("No such player!");
	}
	cv.notify_all();
}
void CGameHandler::handleCPPObjS(std::map<int,CCPPObjectScript*> * mapa, CCPPObjectScript * script)
{
	std::vector<int> tempv = script->yourObjects();
	for (unsigned i=0;i<tempv.size();i++)
	{
		(*mapa)[tempv[i]]=script;
	}
	cppscripts.insert(script);
}
template <typename T>
void callWith(std::vector<T> args, boost::function<void(T)> fun, ui32 which)
{
	fun(args[which]);
}

void CGameHandler::changeSecSkill(int ID, ui16 which, int val, bool abs)
{
	SetSecSkill sps;
	sps.id = ID;
	sps.which = which;
	sps.abs = abs;
	sps.val = val;
	sendAndApply(&sps);
}
void CGameHandler::changePrimSkill(int ID, int which, int val, bool abs)
{
	SetPrimSkill sps;
	sps.id = ID;
	sps.which = which;
	sps.abs = abs;
	sps.val = val;
	sendAndApply(&sps);
	if(which==4) //only for exp - hero may level up
	{
		CGHeroInstance *hero = static_cast<CGHeroInstance *>(gs->map->objects[ID]);
		if(hero->exp >= VLC->heroh->reqExp(hero->level+1)) //new level
		{
			//give prim skill
			tlog5 << hero->name <<" got level "<<hero->level<<std::endl;
			int r = rand()%100, pom=0, x=0;
			int std::pair<int,int>::*g  =  (hero->level>9) ? (&std::pair<int,int>::second) : (&std::pair<int,int>::first);
			for(;x<PRIMARY_SKILLS;x++)
			{
				pom += hero->type->heroClass->primChance[x].*g;
				if(r<pom)
					break;
			}
			tlog5 << "Bohater dostaje umiejetnosc pierwszorzedna " << x << " (wynik losowania "<<r<<")"<<std::endl; 
			SetPrimSkill sps;
			sps.id = ID;
			sps.which = x;
			sps.abs = false;
			sps.val = 1;
			sendAndApply(&sps);

			HeroLevelUp hlu;
			hlu.heroid = ID;
			hlu.primskill = x;
			hlu.level = hero->level+1;

			//picking sec. skills for choice
			std::set<int> basicAndAdv, expert, none;
			for(int i=0;i<SKILL_QUANTITY;i++) none.insert(i);
			for(unsigned i=0;i<hero->secSkills.size();i++)
			{
				if(hero->secSkills[i].second < 3)
					basicAndAdv.insert(hero->secSkills[i].first);
				else
					expert.insert(hero->secSkills[i].first);
				none.erase(hero->secSkills[i].first);
			}
			if(hero->secSkills.size() < hero->type->heroClass->skillLimit) //free skill slot
			{
				hlu.skills.push_back(hero->type->heroClass->chooseSecSkill(none)); //new skill
			}
			else
			{
				int s = hero->type->heroClass->chooseSecSkill(basicAndAdv);
				hlu.skills.push_back(s);
				basicAndAdv.erase(s);
			}
			if(basicAndAdv.size())
			{
				hlu.skills.push_back(hero->type->heroClass->chooseSecSkill(basicAndAdv)); //new skill
			}
			else if(hero->secSkills.size() < hero->type->heroClass->skillLimit)
			{
				hlu.skills.push_back(hero->type->heroClass->chooseSecSkill(none)); //new skill
			}
			boost::function<void(ui32)> callback = boost::function<void(ui32)>(boost::bind(callWith<ui16>,hlu.skills,boost::function<void(ui16)>(boost::bind(&CGameHandler::changeSecSkill,this,ID,_1,1,0)),_1));
			applyAndAsk(&hlu,hero->tempOwner,callback); //call changeSecSkill with appropriate args when client responds
		}
	}
}

CCreatureSet takeCasualties(int color, const CCreatureSet &set, BattleInfo *bat)
{
	CCreatureSet ret(set);
	for(int i=0; i<bat->stacks.size();i++)
	{
		CStack *st = bat->stacks[i];
		if(st->owner==color && vstd::contains(set.slots,st->slot) && st->amount < set.slots.find(st->slot)->second.second)
		{
			if(st->alive())
				ret.slots[st->slot].second = st->amount;
			else
				ret.slots.erase(st->slot);
		}
	}
	return ret;
}

void CGameHandler::startBattle(CCreatureSet army1, CCreatureSet army2, int3 tile, CGHeroInstance *hero1, CGHeroInstance *hero2, boost::function<void(BattleResult*)> cb)
{
	BattleInfo *curB = new BattleInfo;
	setupBattle(curB, tile, army1, army2, hero1, hero2); //initializes stacks, places creatures on battlefield, blocks and informs player interfaces
	NEW_ROUND;
	//TODO: pre-tactic stuff, call scripts etc.


	//tactic round
	{
		NEW_ROUND;
		if( (hero1 && hero1->getSecSkillLevel(19)>0) || 
			( hero2 && hero2->getSecSkillLevel(19)>0)  )//someone has tactics
		{
			//TODO: tactic round (round -1)
		}
	}

	//main loop
	while(!battleResult.get()) //till the end of the battle ;]
	{
		NEW_ROUND;
		std::vector<CStack*> & stacks = (gs->curB->stacks);
		const BattleInfo & curB = *gs->curB;

		//stack loop
		for(unsigned i=0;i<stacks.size() && !battleResult.get();i++)
		{
			if(!stacks[i]->alive()) continue;//indicates imposiibility of making action for this dead unit
			BattleSetActiveStack sas;
			sas.stack = stacks[i]->ID;
			sendAndApply(&sas);
			boost::unique_lock<boost::mutex> lock(battleMadeAction.mx);
			while(!battleMadeAction.data  &&  !battleResult.get()) //active stack hasn't made its action and battle is still going
				battleMadeAction.cond.wait(lock);
			battleMadeAction.data = false;
			checkForBattleEnd(stacks); //check if this action ended the battle
		}
	}

	//unblock engaged players
	if(hero1->tempOwner<PLAYER_LIMIT)
		states.setFlag(hero1->tempOwner,&PlayerStatus::engagedIntoBattle,false);
	if(hero2 && hero2->tempOwner<PLAYER_LIMIT)
		states.setFlag(hero2->tempOwner,&PlayerStatus::engagedIntoBattle,false);	

	//casualties among heroes armies
	SetGarrisons sg;
	if(hero1)
		sg.garrs[hero1->id] = takeCasualties(hero1->tempOwner,hero1->army,gs->curB);
	if(hero2)
		sg.garrs[hero2->id] = takeCasualties(hero2->tempOwner,hero2->army,gs->curB);
	sendAndApply(&sg);

	//end battle, remove all info, free memory
	giveExp(*battleResult.data);
	sendAndApply(battleResult.data);
	if(cb)
		cb(battleResult.data);

	//if one hero has lost we will erase him
	if(battleResult.data->winner!=0 && hero1)
	{
		RemoveObject ro(hero1->id);
		sendAndApply(&ro);
	}
	if(battleResult.data->winner!=1 && hero2)
	{
		RemoveObject ro(hero2->id);
		sendAndApply(&ro);
	}

	//give exp
	if(battleResult.data->exp[0] && hero1)
		changePrimSkill(hero1->id,4,battleResult.data->exp[0]);
	if(battleResult.data->exp[1] && hero2)
		changePrimSkill(hero2->id,4,battleResult.data->exp[1]);

	delete battleResult.data;

}
void CGameHandler::prepareAttacked(BattleStackAttacked &bsa, CStack *def)
{	
	bsa.killedAmount = bsa.damageAmount / def->creature->hitPoints;
	unsigned damageFirst = bsa.damageAmount % def->creature->hitPoints;

	if( def->firstHPleft <= damageFirst )
	{
		bsa.killedAmount++;
		bsa.newHP = def->firstHPleft + def->creature->hitPoints - damageFirst;
	}
	else
	{
		bsa.newHP = def->firstHPleft - damageFirst;
	}

	if(def->amount <= bsa.killedAmount) //stack killed
	{
		bsa.newAmount = 0;
		bsa.flags |= 1;
		bsa.killedAmount = def->amount; //we cannot kill more creatures than we have
	}
	else
	{
		bsa.newAmount = def->amount - bsa.killedAmount;
	}
}

void CGameHandler::prepareAttack(BattleAttack &bat, CStack *att, CStack *def)
{
	bat.stackAttacking = att->ID;
	bat.bsa.stackAttacked = def->ID;
	bat.bsa.damageAmount = BattleInfo::calculateDmg(att, def, gs->getHero(att->attackerOwned ? gs->curB->hero1 : gs->curB->hero2), gs->getHero(def->attackerOwned ? gs->curB->hero1 : gs->curB->hero2), bat.shot());//counting dealt damage
	prepareAttacked(bat.bsa,def);
}
void CGameHandler::handleConnection(std::set<int> players, CConnection &c)
{
	try
	{
		ui16 pom;
		while(!end2)
		{
			c >> pom;
			bool blockvis = false;
			switch(pom)
			{
			case 99: //end!
				{
					tlog0 << "We have been requested to close.\n";
					exit(0);
				}
			case 100: //my interface ended its turn
				{
					states.setFlag(gs->currentPlayer,&PlayerStatus::makingTurn,false);
					break;
				}
			case 500: //dismiss hero
				{
					si32 id;
					c >> id;
					RemoveObject rh(id);
					sendAndApply(&rh);
					break;
				}
			case 501://interface wants to move hero
				{
					int3 start, end;
					si32 id;
					c >> id >> start >> end;
					tlog5 << "Interface wants to move hero "<<id << " from "<<start << " to " << end << std::endl;
					int3 hmpos = end + int3(-1,0,0);
					TerrainTile t = gs->map->terrain[hmpos.x][hmpos.y][hmpos.z];
					CGHeroInstance *h = static_cast<CGHeroInstance *>(gs->map->objects[id]);
					int cost = (int)((double)h->getTileCost(t.tertype,t.malle,t.nuine) * distance(start,end));

					TryMoveHero tmh;
					tmh.id = id;
					tmh.start = start;
					tmh.end = end;
					tmh.result = 0;
					tmh.movePoints = h->movement;

					if((h->getOwner() != gs->currentPlayer) //not turn of that hero
						|| (distance(start,end)>=1.5) //tiles are not neighouring
						|| (h->movement < cost) //lack of movement points
						|| (t.tertype == rock)  //rock
						|| (!h->canWalkOnSea() && t.tertype == water)
						|| (t.blocked && !t.visitable) //tile is blocked andnot visitable
						) 
						goto fail;

					
					//check if there is blocking visitable object
					blockvis = false;
					tmh.movePoints = h->movement = (h->movement-cost); //take move points
					BOOST_FOREACH(CGObjectInstance *obj, t.visitableObjects)
					{
						if(obj->blockVisit)
						{
							blockvis = true;
							break;
						}
					}


					//we start moving
					if(blockvis)//interaction with blocking object (like resources)
					{
						sendAndApply(&tmh); //failed to move to that tile but we visit object
						BOOST_FOREACH(CGObjectInstance *obj, t.visitableObjects)
						{
							if (obj->blockVisit)
							{
								//if(gs->checkFunc(obj->ID,"heroVisit")) //script function
								//	gs->objscr[obj->ID]["heroVisit"]->onHeroVisit(obj,h->subID);
								if(obj->state) //hard-coded function
									obj->state->onHeroVisit(obj->id,h->id);
							}
						}
						tlog5 << "Blocing visit at " << hmpos << std::endl;
						break;
					}
					else //normal move
					{
						tmh.result = 1;

						BOOST_FOREACH(CGObjectInstance *obj, gs->map->terrain[start.x-1][start.y][start.z].visitableObjects)
						{
							//TODO: allow to handle this in script-languages
							if(obj->state) //hard-coded function
								obj->state->onHeroLeave(obj->id,h->id);
						}
						tmh.fowRevealed = gs->tilesToReveal(h->getPosition(false),h->getSightDistance(),h->tempOwner);
						sendAndApply(&tmh);
						tlog5 << "Moved to " <<tmh.end<<std::endl;

						BOOST_FOREACH(CGObjectInstance *obj, t.visitableObjects)//call objects if they are visited
						{
							//if(gs->checkFunc(obj->ID,"heroVisit")) //script function
							//	gs->objscr[obj->ID]["heroVisit"]->onHeroVisit(obj,h->subID);
							if(obj->state) //hard-coded function
								obj->state->onHeroVisit(obj->id,h->id);
						}
					}
					tlog5 << "Movement end!\n";
					break;
				fail:
					tlog2 << "Movement failed to " << tmh.end << std::endl;
					sendAndApply(&tmh);
					break;
				}
			case 502: //swap creatures in garrison
				{
					ui8 what, p1, p2; si32 id1, id2;
					c >> what >> id1 >> p1 >> id2 >> p2;
					CArmedInstance *s1 = static_cast<CArmedInstance*>(gs->map->objects[id1]),
						*s2 = static_cast<CArmedInstance*>(gs->map->objects[id2]);
					CCreatureSet *S1 = &s1->army, *S2 = &s2->army;
					
					if(what==1) //swap
					{
						int pom = S2->slots[p2].first;
						S2->slots[p2].first = S1->slots[p1].first;
						S1->slots[p1].first = pom;
						int pom2 = S2->slots[p2].second;
						S2->slots[p2].second = S1->slots[p1].second;
						S1->slots[p1].second = pom2;

						if(!S1->slots[p1].second)
							S1->slots.erase(p1);
						if(!S2->slots[p2].second)
							S2->slots.erase(p2);
					}
					else if(what==2)//merge
					{
						if(S1->slots[p1].first != S2->slots[p2].first) break; //not same creature
						S2->slots[p2].second += S1->slots[p1].second;
						S1->slots[p1].first = NULL;
						S1->slots[p1].second = 0;
						S1->slots.erase(p1);
					}
					else if(what==3) //split
					{
						si32 val;
						c >> val;
						if(S2->slots.find(p2) != S2->slots.end()) break; //slot not free
						S2->slots[p2].first = S1->slots[p1].first;
						S2->slots[p2].second = val;
						S1->slots[p1].second -= val;
						if(!S1->slots[p1].second) //if we've moved all creatures
							S1->slots.erase(p1); 
					}
					if((s1->ID==34 && !S1->slots.size()) //it's not allowed to take last stack from hero army!
						|| (s2->ID==34 && !S2->slots.size()))
					{
						break;
					}
					SetGarrisons sg;
					sg.garrs[id1] = *S1;
					if(s1 != s2)
						sg.garrs[id2] = *S2;
					sendAndApply(&sg);
					break;
				}
			case 503: //disband creature
				{
					si32 id;
					ui8 pos;
					c >> id >> pos;
					CArmedInstance *s1 = static_cast<CArmedInstance*>(gs->map->objects[id]);
					s1->army.slots.erase(pos);
					SetGarrisons sg;
					sg.garrs[id] = s1->army;
					sendAndApply(&sg);
					break;
				}
			case 504: //build structure
				{
					si32 tid, bid;
					c >> tid >> bid;
					CGTownInstance * t = static_cast<CGTownInstance*>(gs->map->objects[tid]);
					CBuilding * b = VLC->buildh->buildings[t->subID][bid];
					for(int i=0;i<RESOURCE_QUANTITY;i++)
						if(b->resources[i] > gs->players[t->tempOwner].resources[i])
							break; //no res

					for( std::set<int>::iterator ri  =  VLC->townh->requirements[t->subID][bid].begin();
						 ri != VLC->townh->requirements[t->subID][bid].end();
						 ri++ )
					{
						if(!vstd::contains(t->builtBuildings,*ri))
							break; //lack of requirements - cannot build
					}

					if(vstd::contains(t->forbiddenBuildings,bid))
						break; //this building is forbidden

					NewStructures ns;
					ns.tid = tid;
					if(bid>36) //upg dwelling
					{
						if(t->getHordeLevel(0) == (bid-37))
							ns.bid.insert(19);
						else if(t->getHordeLevel(1) == (bid-37))
							ns.bid.insert(25);
					}
					else if(bid >= 30) //bas. dwelling
					{
						SetAvailableCreatures ssi;
						ssi.tid = tid;
						ssi.creatures = t->strInfo.creatures;
						ssi.creatures[bid-30] = VLC->creh->creatures[t->town->basicCreatures[bid-30]].growth;
						sendAndApply(&ssi);
					}

					ns.bid.insert(bid);
					ns.builded = t->builded + 1;
					sendAndApply(&ns);

					SetResources sr;
					sr.player = t->tempOwner;
					sr.res = gs->players[t->tempOwner].resources;
					for(int i=0;i<7;i++)
						sr.res[i]-=b->resources[i];
					sendAndApply(&sr);

					if(bid<5) //it's mage guild
					{
						if(t->visitingHero)
							giveSpells(t,t->visitingHero);
						if(t->garrisonHero)
							giveSpells(t,t->garrisonHero);
					}

					break;
				}
			case 506: //recruit creature
				{
					si32 objid, ser=-1; //ser - used dwelling level
					ui32 crid, cram; //recruited creature id and amount
					c >> objid >> crid >> cram;

					CGTownInstance * t = static_cast<CGTownInstance*>(gs->map->objects[objid]);

					//verify
					bool found = false;
					typedef std::pair<const int,int> Parka;
					for(std::map<si32,ui32>::iterator av = t->strInfo.creatures.begin();  av!=t->strInfo.creatures.end();  av++)
					{
						if(	(   found  = (crid == t->town->basicCreatures[av->first])   ) //creature is available among basic cretures
							|| (found  = (crid == t->town->upgradedCreatures[av->first]))			)//creature is available among upgraded cretures
						{
							cram = std::min(cram,av->second); //reduce recruited amount up to available amount
							ser = av->first;
							break;
						}
					}
					int slot = t->army.getSlotFor(crid);

					if(!found ||	//no such creature
						cram > VLC->creh->creatures[crid].maxAmount(gs->players[t->tempOwner].resources) ||  //lack of resources
						cram<=0	||
						slot<0	) 
						break;

					//recruit
					SetResources sr;
					sr.player = t->tempOwner;
					for(int i=0;i<RESOURCE_QUANTITY;i++)
						sr.res[i]  =  gs->players[t->tempOwner].resources[i] - (VLC->creh->creatures[crid].cost[i] * cram);

					SetAvailableCreatures sac;
					sac.tid = objid;
					sac.creatures = t->strInfo.creatures;
					sac.creatures[ser] -= cram;

					SetGarrisons sg;
					sg.garrs[objid] = t->army;
					if(sg.garrs[objid].slots.find(slot) == sg.garrs[objid].slots.end()) //take a free slot
					{
						sg.garrs[objid].slots[slot] = std::make_pair(crid,cram);
					}
					else //add creatures to a already existing stack
					{
						sg.garrs[objid].slots[slot].second += cram;
					}
					sendAndApply(&sr); 
					sendAndApply(&sac);
					sendAndApply(&sg);
					break;
				}
			case 507://upgrade creature
				{
					ui32 objid, upgID;
					ui8 pos;
					c >> objid >> pos >> upgID;
					CArmedInstance *obj = static_cast<CArmedInstance*>(gs->map->objects[objid]);
					UpgradeInfo ui = gs->getUpgradeInfo(obj,pos);
					int player = obj->tempOwner;
					int crQuantity = obj->army.slots[pos].second;

					//check if upgrade is possible
					if(ui.oldID<0 || !vstd::contains(ui.newID,upgID)) 
						break;

					//check if player has enough resources
					for(int i=0;i<ui.cost.size();i++)
					{
						for (std::set<std::pair<int,int> >::iterator j=ui.cost[i].begin(); j!=ui.cost[i].end(); j++)
						{
							if(gs->players[player].resources[j->first] < j->second*crQuantity)
								goto upgend;
						}
					}

					//take resources
					for(int i=0;i<ui.cost.size();i++)
					{
						for (std::set<std::pair<int,int> >::iterator j=ui.cost[i].begin(); j!=ui.cost[i].end(); j++)
						{
							SetResource sr;
							sr.player = player;
							sr.resid = j->first;
							sr.val = gs->players[player].resources[j->first] - j->second*crQuantity;
							sendAndApply(&sr);
						}
					}

					{
						//upgrade creature
						SetGarrisons sg;
						sg.garrs[objid] = obj->army;
						sg.garrs[objid].slots[pos].first = upgID;
						sendAndApply(&sg);	
					}		
upgend:
					break;
				}
			case 508: //garrison swap
				{
					si32 tid;
					c >> tid;
					CGTownInstance *town = gs->getTown(tid);
					if(!town->garrisonHero && town->visitingHero) //visiting => garrison, merge armies
					{
						CCreatureSet csn = town->visitingHero->army, cso = town->army;
						while(!cso.slots.empty())//while there are unmoved creatures
						{
							int pos = csn.getSlotFor(cso.slots.begin()->second.first);
							if(pos<0)
								goto handleConEnd;
							if(csn.slots.find(pos)!=csn.slots.end()) //add creatures to the existing stack
							{
								csn.slots[pos].second += cso.slots.begin()->second.second;
							}
							else //move stack on the free pos
							{
								csn.slots[pos].first = cso.slots.begin()->second.first;
								csn.slots[pos].second = cso.slots.begin()->second.second;
							}
							cso.slots.erase(cso.slots.begin());
						}
						SetGarrisons sg;
						sg.garrs[town->visitingHero->id] = csn;
						sg.garrs[town->id] = csn;
						sendAndApply(&sg);

						SetHeroesInTown intown;
						intown.tid = tid;
						intown.visiting = -1;
						intown.garrison = town->visitingHero->id;
						sendAndApply(&intown);
					}
					else if (town->garrisonHero && !town->visitingHero) //move hero out of the garrison
					{
						SetHeroesInTown intown;
						intown.tid = tid;
						intown.garrison = -1;
						intown.visiting =  town->garrisonHero->id;
						sendAndApply(&intown);

						//town will be empty
						SetGarrisons sg;
						sg.garrs[tid] = CCreatureSet();
						sendAndApply(&sg);
					}
					else if (town->garrisonHero && town->visitingHero) //swap visiting and garrison hero
					{
						SetGarrisons sg;
						sg.garrs[town->id] = town->visitingHero->army;
						sg.garrs[town->garrisonHero->id] = town->garrisonHero->army;
						//sg.garrs[town->visitingHero->id] = town->visitingHero->army;

						SetHeroesInTown intown;
						intown.tid = tid;
						intown.garrison = town->visitingHero->id;
						intown.visiting =  town->garrisonHero->id;
						sendAndApply(&intown);
						sendAndApply(&sg);
					}
					else
					{
						tlog3 << "Warning, wrong garrison swap command for " << tid << std::endl;
					}
					break;
				}
			case 509: //swap artifacts
				{
					si32 hid1, hid2;
					ui16 slot1, slot2;
					c >> hid1 >> slot1 >> hid2 >> slot2;
					CGHeroInstance *h1 = gs->getHero(hid1), *h2 = gs->getHero(hid2);
					if((distance(h1->pos,h2->pos) > 1.0)   ||   (h1->tempOwner != h2->tempOwner))
						break;
					int a1=h1->getArtAtPos(slot1), a2=h2->getArtAtPos(slot2);

					h2->setArtAtPos(slot2,a1);
					h1->setArtAtPos(slot1,a2);
					SetHeroArtifacts sha;
					sha.hid = hid1;
					sha.artifacts = h1->artifacts;
					sha.artifWorn = h1->artifWorn;
					sendAndApply(&sha);
					if(hid1 != hid2)
					{
						sha.hid = hid2;
						sha.artifacts = h2->artifacts;
						sha.artifWorn = h2->artifWorn;
						sendAndApply(&sha);
					}
					break;
				}
			case 510: //buy artifact
				{
					ui32 hid;
					si32 aid, bid;
					c >> hid >> aid;
					CGHeroInstance *hero = gs->getHero(hid);
					CGTownInstance *town = hero->visitedTown;
					if(aid==0) //spellbok
					{
						if(!vstd::contains(town->builtBuildings,si32(0)))
							break;
						SetResource sr;
						sr.player = hero->tempOwner;
						sr.resid = 6;
						sr.val = gs->players[hero->tempOwner].resources[6] - 500;
						sendAndApply(&sr);

						SetHeroArtifacts sha;
						sha.hid = hid;
						sha.artifacts = hero->artifacts;
						sha.artifWorn = hero->artifWorn;
						sha.artifWorn[17] = 0;
						sendAndApply(&sha);

						giveSpells(town,hero);
					}
					else if(aid < 7  &&  aid > 3) //war machine
					{
						int price = VLC->arth->artifacts[aid].price;
						if(vstd::contains(hero->artifWorn,ui16(9+aid))  //hero already has this machine
							|| !vstd::contains(town->builtBuildings,si32(16)) //no blackismith
							|| gs->players[hero->tempOwner].resources[6] < price //no gold
							|| town->town->warMachine!= aid ) //this machine is not available here (//TODO: support ballista yard in stronghold)
						{
							break;
						}
						SetResource sr;
						sr.player = hero->tempOwner;
						sr.resid = 6;
						sr.val = gs->players[hero->tempOwner].resources[6] - price;
						sendAndApply(&sr);

						SetHeroArtifacts sha;
						sha.hid = hid;
						sha.artifacts = hero->artifacts;
						sha.artifWorn = hero->artifWorn;
						sha.artifWorn[9+aid] = aid;
						sendAndApply(&sha);
					}
					break;
				}
			case 511: //trade at marketplace
				{
					ui8 player;
					ui32 mode, id1, id2, val;
					c >> player >> mode >> id1 >> id2 >> val;
					val = std::min(si32(val),gs->players[player].resources[id1]);
					double uzysk = (double)gs->resVals[id1] * val * gs->getMarketEfficiency(player);
					uzysk /= gs->resVals[id2];
					SetResource sr;
					sr.player = player;
					sr.resid = id1;
					sr.val = gs->players[player].resources[id1] - val;
					sendAndApply(&sr);

					sr.resid = id2;
					sr.val = gs->players[player].resources[id2] + (int)uzysk;
					sendAndApply(&sr);

					break;
				}
			case 512:
				{
					si32 hid;
					ui8 formation;
					c >> hid >> formation;
					gs->getHero(hid)->army.formation = formation;
					break;
				}
			case 2001:
				{
					ui32 qid, answer;
					c >> qid >> answer;
					gsm.lock();
					CFunctionList<void(ui32)> callb = callbacks[qid];
					callbacks.erase(qid);
					gsm.unlock();
					callb(answer);
					break;
				}
			case 3002:
				{	
					BattleAction ba;
					c >> ba;
					switch(ba.actionType)
					{
					case 2: //walk
						{
							sendAndApply(&StartAction(ba)); //start movement
							moveStack(ba.stackNumber,ba.destinationTile); //move
							sendDataToClients(ui16(3008)); //endmovement
							break;
						}
					case 3: //defend
						{
							break;
						}
					case 4: //retreat/flee
						{
							//TODO: check if fleeing is possible (e.g. enemy may have Shackles of War)
							//TODO: calculate casualties
							//TODO: remove retreating hero from map and place it in recrutation list
							BattleResult *br = new BattleResult;
							br->result = 1;
							br->winner = !ba.side; //fleeing side loses
							gs->curB->calculateCasualties(br->casualties);
							giveExp(*br);
							battleResult.set(br);
							break;
						}
					case 6: //walk or attack
						{
							sendAndApply(&StartAction(ba)); //start movement and attack
							moveStack(ba.stackNumber,ba.destinationTile);
							CStack *curStack = gs->curB->getStack(ba.stackNumber),
								*stackAtEnd = gs->curB->getStackT(ba.additionalInfo);

							if((curStack->position != ba.destinationTile) || //we wasn't able to reach destination tile
								(BattleInfo::mutualPosition(ba.destinationTile,ba.additionalInfo)<0) ) //destination tile is not neighbouring with enemy stack
								return;

							BattleAttack bat;
							prepareAttack(bat,curStack,stackAtEnd);
							sendAndApply(&bat);
							//counterattack
							if(!vstd::contains(curStack->abilities,NO_ENEMY_RETALIATION)
								&& stackAtEnd->alive()
								&& stackAtEnd->counterAttacks	) //TODO: support for multiple retaliatons per turn
							{
								prepareAttack(bat,stackAtEnd,curStack);
								bat.flags |= 2;
								sendAndApply(&bat);
							}

							if(vstd::contains(curStack->abilities,TWICE_ATTACK)
								&& curStack->alive()
								&& stackAtEnd->alive()  )
							{
								bat.flags = 0;
								prepareAttack(bat,curStack,stackAtEnd);
								sendAndApply(&bat);
							}
							sendDataToClients(ui16(3008)); //end movement and attack
							break;
						}
					case 7: //shoot
						{
							//TODO: check arrows count
							//TODO: check if stack isn't blocked by enemy

							sendAndApply(&StartAction(ba)); //start shooting
							CStack *curStack = gs->curB->getStack(ba.stackNumber),
								*destStack= gs->curB->getStackT(ba.destinationTile);

							BattleAttack bat;
							prepareAttack(bat,curStack,destStack);
							bat.flags |= 1;

							if(vstd::contains(curStack->abilities,TWICE_ATTACK)
								&& curStack->alive())
							{
								prepareAttack(bat,curStack,destStack);
								sendAndApply(&bat);
							}

							sendAndApply(&bat);
							sendDataToClients(ui16(3008)); //end shooting
							break;
						}
					}
					battleMadeAction.setn(true);
					break;
				}
			case 3003: //custom action (probably spell)
				{
					BattleAction ba;
					c >> ba;
					switch(ba.actionType)
					{
					case 1: //hero casts spell
						{
							CGHeroInstance *h = (ba.side) ? gs->getHero(gs->curB->hero2) : gs->getHero(gs->curB->hero1);
							if(!h)
							{
								tlog2 << "Wrong caster!\n";
								goto customactionend;
							}
							if(ba.additionalInfo >= VLC->spellh->spells.size())
							{
								tlog2 << "Wrong spell id (" << ba.additionalInfo << ")!\n";
								goto customactionend;
							}

							CSpell *s = &VLC->spellh->spells[ba.additionalInfo];
							int skill = 0; //skill level

							if(s->fire)
								skill = std::max(skill,h->getSecSkillLevel(14));
							if(s->air)
								skill = std::max(skill,h->getSecSkillLevel(15));
							if(s->water)
								skill = std::max(skill,h->getSecSkillLevel(16));
							if(s->earth)
								skill = std::max(skill,h->getSecSkillLevel(17));

							//TODO: skill level may be different on special terrain

							if( // !vstd::contains(h->spells,ba.additionalInfo) //hero doesn't know this spell 
								/*||*/ (h->mana < s->costs[skill]) //not enough mana
								|| (ba.additionalInfo < 10) //it's adventure spell (not combat)
								|| 0     )//TODO: hero has already casted a spell in this round
							{
								tlog2 << "Spell cannot be casted!\n";
								goto customactionend;
							}

							sendAndApply(&StartAction(ba)); //start spell casting

							//TODO: check resistances

							SpellCasted sc;
							sc.side = ba.side;
							sc.id = ba.additionalInfo;
							sc.skill = skill;
							sc.tile = ba.destinationTile;
							sendAndApply(&sc);
							switch(ba.additionalInfo) //spell id
							{
							case 15://magic arrow
								{
									CStack * attacked = gs->curB->getStackT(ba.destinationTile);
									if(!attacked) break;
									BattleStackAttacked bsa;
									bsa.flags |= 2;
									bsa.effect = 64;
									bsa.damageAmount = h->primSkills[2] * 10; //TODO: use skill level
									bsa.stackAttacked = attacked->ID;
									prepareAttacked(bsa,attacked);
									sendAndApply(&bsa);
									break;
								}
							case 53: //haste
								{
									break;
								}
							}

							//TODO: spells to support possibly soon (list by Zamolxis):
							/*- Magic Arrow
							- Haste
							- Bless
							- Bloodlust
							- Curse
							- Dispel
							- Shield
							- Slow
							- Stone Skin
							- Lightning Bolt
							- Ice Bolt
							- Precision
							- Blind
							- Fire Wall
							- Weakness
							- Death Ripple */

							sendDataToClients(ui16(3008)); //end casting
							break;
						}
					}
customactionend:
					break;
				}
			default:
				throw std::string("Not supported client message!");
			}
		}
	}
	catch (const std::exception& e)
	{
		tlog1 << "Exception during handling connection: " << e.what() << std::endl;
		end2 = true;
	}
	catch (const std::exception * e)
	{
		tlog1 << "Exception during handling connection: " << e->what()<< std::endl;	
		end2 = true;
		delete e;
	}
	catch(...)
	{
		end2 = true;
	}
handleConEnd:
	tlog1 << "Ended handling connection\n";
}
void CGameHandler::moveStack(int stack, int dest)
{							
	CStack *curStack = gs->curB->getStack(stack),
		*stackAtEnd = gs->curB->getStackT(dest);

	//initing necessary tables
	bool accessibility[187];
	if(curStack->creature->isDoubleWide())
		gs->curB->getAccessibilityMapForTwoHex(accessibility,curStack->attackerOwned,curStack->ID);
	else 
		gs->curB->getAccessibilityMap(accessibility,curStack->ID);

	if((stackAtEnd && stackAtEnd!=curStack && stackAtEnd->alive()) || !accessibility[dest])
		return;

	//if(dists[dest] > curStack->creature->speed && !(stackAtEnd && dists[dest] == curStack->creature->speed+1)) //we can attack a stack if we can go to adjacent hex
	//	return false;

	std::vector<int> path = gs->curB->getPath(curStack->position,dest,accessibility);
	int tilesToMove = std::max((int)path.size()-curStack->creature->speed, 0);
	for(int v=path.size()-1; v>=tilesToMove; --v)
	{
		//inform clients about move
		BattleStackMoved sm;
		sm.stack = curStack->ID;
		sm.tile = path[v];
		sendAndApply(&sm);
	}
}
CGameHandler::CGameHandler(void)
{
	gs = NULL;
}

CGameHandler::~CGameHandler(void)
{
	delete gs;
}
void CGameHandler::init(StartInfo *si, int Seed)
{
	Mapa *map = new Mapa(si->mapname);
	tlog0 << "Map loaded!" << std::endl;
	gs = new CGameState();
	tlog0 << "Gamestate created!" << std::endl;
	gs->init(si,map,Seed);	
	tlog0 << "Gamestate initialized!" << std::endl;
	/****************************LUA OBJECT SCRIPTS************************************************/
	//std::vector<std::string> * lf = CLuaHandler::searchForScripts("scripts/lua/objects"); //files
	//for (int i=0; i<lf->size(); i++)
	//{
	//	try
	//	{
	//		std::vector<std::string> * temp =  CLuaHandler::functionList((*lf)[i]);
	//		CLuaObjectScript * objs = new CLuaObjectScript((*lf)[i]);
	//		CLuaCallback::registerFuncs(objs->is);
	//		//objs
	//		for (int j=0; j<temp->size(); j++)
	//		{
	//			int obid ; //obj ID
	//			int dspos = (*temp)[j].find_first_of('_');
	//			obid = atoi((*temp)[j].substr(dspos+1,(*temp)[j].size()-dspos-1).c_str());
	//			std::string fname = (*temp)[j].substr(0,dspos);
	//			if (skrypty->find(obid)==skrypty->end())
	//				skrypty->insert(std::pair<int, std::map<std::string, CObjectScript*> >(obid,std::map<std::string,CObjectScript*>()));
	//			(*skrypty)[obid].insert(std::pair<std::string, CObjectScript*>(fname,objs));
	//		}
	//		delete temp;
	//	}HANDLE_EXCEPTION
	//}

	//delete lf;
}
int lowestSpeed(CGHeroInstance * chi)
{
	std::map<si32,std::pair<ui32,si32> >::iterator i = chi->army.slots.begin();
	int ret = VLC->creh->creatures[(*i++).second.first].speed;
	for (;i!=chi->army.slots.end();i++)
	{
		ret = std::min(ret,VLC->creh->creatures[(*i).second.first].speed);
	}
	return ret;
}
int valMovePoints(CGHeroInstance * chi, bool onLand)
{
	int ret = 1270+70*lowestSpeed(chi);
	if (ret>2000) 
		ret=2000;

	if(onLand)
	{
		//logistics:
		switch(chi->getSecSkillLevel(2))
		{
		case 1:
			ret *= 1.1f;
			break;
		case 2:
			ret *= 1.2f;
			break;
		case 3:
			ret *= 1.3f;
			break;
		}
	}
	else
	{
		//navigation:
		switch(chi->getSecSkillLevel(2))
		{
		case 1:
			ret *= 1.5f;
			break;
		case 2:
			ret *= 2.0f;
			break;
		case 3:
			ret *= 2.5f;
			break;
		}
	}
	
	//TODO: additional bonuses (but they aren't currently stored in chi)

	return ret;
}
void CGameHandler::newTurn()
{
	NewTurn n;
	n.day = gs->day + 1;
	n.resetBuilded = true;

	for ( std::map<ui8, PlayerState>::iterator i=gs->players.begin() ; i!=gs->players.end();i++)
	{
		if(i->first>=PLAYER_LIMIT) continue;
		SetResources r;
		r.player = i->first;
		for(int j=0;j<RESOURCE_QUANTITY;j++)
			r.res[j] = i->second.resources[j];
		
		BOOST_FOREACH(CGHeroInstance *h, (*i).second.heroes)
		{
			NewTurn::Hero hth;
			hth.id = h->id;
			hth.move = valMovePoints(h, true); //TODO: check if hero is really on the land
			hth.mana = std::min(h->mana+1+h->getSecSkillLevel(8), h->manaLimit()); //hero regains 1 mana point + mysticism lvel
			n.heroes.insert(hth);
			
			switch(h->getSecSkillLevel(13)) //handle estates - give gols
			{
			case 1: //basic
				r.res[6] += 125;
				break;
			case 2: //advanced
				r.res[6] += 250;
				break;
			case 3: //expert
				r.res[6] += 500;
				break;
			}
		}
		for(std::vector<CGTownInstance *>::iterator j=i->second.towns.begin();j!=i->second.towns.end();j++)//handle towns
		{
			if(vstd::contains((**j).builtBuildings,15)) //there is resource silo
			{
				if((**j).town->primaryRes == 127) //we'll give wood and ore
				{
					r.res[0] += 1;
					r.res[2] += 1;
				}
				else
				{
					r.res[(**j).town->primaryRes] += 1;
				}
			}
			if(gs->getDate(1)==7) //first day of week
			{
				SetAvailableCreatures sac;
				sac.tid = (**j).id;
				sac.creatures = (**j).strInfo.creatures;
				for(int k=0;k<CREATURES_PER_TOWN;k++) //creature growths
				{
					if((**j).creatureDwelling(k))//there is dwelling (k-level)
						sac.creatures[k] += (**j).creatureGrowth(k);
				}
				n.cres.push_back(sac);
			}
			if((gs->day) && i->first<PLAYER_LIMIT)//not the first day and town not neutral
				r.res[6] += (**j).dailyIncome();
		}
		n.res.push_back(r);
	}	
	sendAndApply(&n);
	for (std::set<CCPPObjectScript *>::iterator i=cppscripts.begin();i!=cppscripts.end();i++)
	{
		(*i)->newTurn();
	}
}
void CGameHandler::run()
{	
	BOOST_FOREACH(CConnection *cc, conns)
	{//init conn.
		ui8 quantity, pom;
		//ui32 seed;
		(*cc) << gs->scenarioOps->mapname << gs->map->checksum << gs->seed;
		(*cc) >> quantity; //how many players will be handled at that client
		for(int i=0;i<quantity;i++)
		{
			(*cc) >> pom; //read player color
			gsm.lock();
			connections[pom] = cc;
			gsm.unlock();
		}	
	}
	
	for(std::set<CConnection*>::iterator i = conns.begin(); i!=conns.end();i++)
	{
		std::set<int> pom;
		for(std::map<int,CConnection*>::iterator j = connections.begin(); j!=connections.end();j++)
			if(j->second == *i)
				pom.insert(j->first);

		boost::thread(boost::bind(&CGameHandler::handleConnection,this,pom,boost::ref(**i)));
	}

	/****************************SCRIPTS************************************************/
	//std::map<int, std::map<std::string, CObjectScript*> > * skrypty = &objscr; //alias for easier access
	/****************************C++ OBJECT SCRIPTS************************************************/
	std::map<int,CCPPObjectScript*> scripts;
	CScriptCallback * csc = new CScriptCallback();
	csc->gh = this;
	handleCPPObjS(&scripts,new CVisitableOPH(csc));
	handleCPPObjS(&scripts,new CVisitableOPW(csc));
	handleCPPObjS(&scripts,new CPickable(csc));
	handleCPPObjS(&scripts,new CMines(csc));
	handleCPPObjS(&scripts,new CTownScript(csc));
	handleCPPObjS(&scripts,new CHeroScript(csc));
	handleCPPObjS(&scripts,new CMonsterS(csc));
	handleCPPObjS(&scripts,new CCreatureGen(csc));
	handleCPPObjS(&scripts,new CTeleports(csc));

	/****************************INITIALIZING OBJECT SCRIPTS************************************************/
	//std::string temps("newObject");
	for (unsigned i=0; i<gs->map->objects.size(); i++)
	{
		//c++ scripts
		if (scripts.find(gs->map->objects[i]->ID) != scripts.end())
		{
			gs->map->objects[i]->state = scripts[gs->map->objects[i]->ID];
			gs->map->objects[i]->state->newObject(gs->map->objects[i]->id);
		}
		else 
		{
			gs->map->objects[i]->state = NULL;
		}

		//// lua scripts
		//if(checkFunc(map->objects[i]->ID,temps))
		//	(*skrypty)[map->objects[i]->ID][temps]->newObject(map->objects[i]);
	}
	for(std::map<ui8,PlayerState>::iterator i = gs->players.begin(); i != gs->players.end(); i++)
		states.addPlayer(i->first);

	while (!end2)
	{
		newTurn();
		for(std::map<ui8,PlayerState>::iterator i = gs->players.begin(); i != gs->players.end(); i++)
		{
			if((i->second.towns.size()==0 && i->second.heroes.size()==0)  || i->second.color<0 || i->first>=PLAYER_LIMIT  ) continue; //players has not towns/castle - loser
			states.setFlag(i->first,&PlayerStatus::makingTurn,true);
			gs->currentPlayer = i->first;
			*connections[i->first] << ui16(100) << i->first;    

			//wait till turn is done
			boost::unique_lock<boost::mutex> lock(states.mx);
			while(states.players[i->first].makingTurn && !end2)
			{
				boost::posix_time::time_duration p;
				p = boost::posix_time::milliseconds(200);
#ifdef _MSC_VER
				states.cv.timed_wait(lock,p); 
#else
				boost::xtime time={0,0};
				time.nsec = static_cast<boost::xtime::xtime_nsec_t>(p.total_nanoseconds());
				states.cv.timed_wait(lock,time);
#endif
			}
		}
	}
}

namespace CGH
{
	using namespace std;
	void readItTo(ifstream & input, vector< vector<int> > & dest)
	{
		for(int j=0; j<7; ++j)
		{
			std::vector<int> pom;
			for(int g=0; g<j+1; ++g)
			{
				int hlp; input>>hlp;
				pom.push_back(hlp);
			}
			dest.push_back(pom);
		}
	}
}

void CGameHandler::setupBattle( BattleInfo * curB, int3 tile, CCreatureSet &army1, CCreatureSet &army2, CGHeroInstance * hero1, CGHeroInstance * hero2 )
{
	battleResult.set(NULL);
	std::vector<CStack*> & stacks = (curB->stacks);

	curB->tile = tile;
	curB->siege = 0; //TODO: add sieges
	curB->army1=army1;
	curB->army2=army2;
	curB->hero1=(hero1)?(hero1->id):(-1);
	curB->hero2=(hero2)?(hero2->id):(-1);
	curB->side1=(hero1)?(hero1->tempOwner):(-1);
	curB->side2=(hero2)?(hero2->tempOwner):(-1);
	curB->round = -2;
	curB->activeStack = -1;
	for(std::map<si32,std::pair<ui32,si32> >::iterator i = army1.slots.begin(); i!=army1.slots.end(); i++)
	{
		stacks.push_back(new CStack(&VLC->creh->creatures[i->second.first],i->second.second,hero1->tempOwner, stacks.size(), true,i->first));
		stacks[stacks.size()-1]->ID = stacks.size()-1;
	}
	//initialization of positions
	std::ifstream positions;
	positions.open("config" PATHSEPARATOR "battleStartpos.txt", std::ios_base::in|std::ios_base::binary);
	if(!positions.is_open())
	{
		tlog1<<"Unable to open battleStartpos.txt!"<<std::endl;
	}
	std::string dump;
	positions>>dump; positions>>dump;
	std::vector< std::vector<int> > attackerLoose, defenderLoose, attackerTight, defenderTight;
	CGH::readItTo(positions, attackerLoose);
	positions>>dump;
	CGH::readItTo(positions, defenderLoose);
	positions>>dump;
	positions>>dump;
	CGH::readItTo(positions, attackerTight);
	positions>>dump;
	CGH::readItTo(positions, defenderTight);
	positions.close();
	
	if(army1.formation)
		for(int b=0; b<army1.slots.size(); ++b) //tight
		{
			stacks[b]->position = attackerTight[army1.slots.size()-1][b];
		}
	else
		for(int b=0; b<army1.slots.size(); ++b) //loose
		{
			stacks[b]->position = attackerLoose[army1.slots.size()-1][b];
		}
	for(std::map<si32,std::pair<ui32,si32> >::iterator i = army2.slots.begin(); i!=army2.slots.end(); i++)
		stacks.push_back(new CStack(&VLC->creh->creatures[i->second.first],i->second.second,hero2 ? hero2->tempOwner : 255, stacks.size(), false, i->first));

	if(army2.formation)
		for(int b=0; b<army2.slots.size(); ++b) //tight
		{
			stacks[b+army1.slots.size()]->position = defenderTight[army2.slots.size()-1][b];
		}
	else
		for(int b=0; b<army2.slots.size(); ++b) //loose
		{
			stacks[b+army1.slots.size()]->position = defenderLoose[army2.slots.size()-1][b];
		}

	for(unsigned g=0; g<stacks.size(); ++g) //shifting positions of two-hex creatures
	{
		if((stacks[g]->position%17)==1 && stacks[g]->creature->isDoubleWide())
		{
			stacks[g]->position += 1;
		}
		else if((stacks[g]->position%17)==15 && stacks[g]->creature->isDoubleWide())
		{
			stacks[g]->position -= 1;
		}
	}
	std::stable_sort(stacks.begin(),stacks.end(),cmpst);

	//block engaged players
	if(hero1->tempOwner<PLAYER_LIMIT)
		states.setFlag(hero1->tempOwner,&PlayerStatus::engagedIntoBattle,true);
	if(hero2 && hero2->tempOwner<PLAYER_LIMIT)
		states.setFlag(hero2->tempOwner,&PlayerStatus::engagedIntoBattle,true);

	//send info about battles
	BattleStart bs;
	bs.info = curB;
	sendAndApply(&bs);
}

void CGameHandler::checkForBattleEnd( std::vector<CStack*> &stacks )
{
	//checking winning condition
	bool hasStack[2]; //hasStack[0] - true if attacker has a living stack; defender similarily
	hasStack[0] = hasStack[1] = false;
	for(int b = 0; b<stacks.size(); ++b)
	{
		if(stacks[b]->alive())
		{
			hasStack[1-stacks[b]->attackerOwned] = true;
		}
	}
	if(!hasStack[0] || !hasStack[1]) //somebody has won
	{
		BattleResult *br = new BattleResult; //will be deleted at the end of startBattle(...)
		br->result = 0;
		br->winner = hasStack[1]; //fleeing side loses
		gs->curB->calculateCasualties(br->casualties);
		battleResult.set(br);
	}
}

void CGameHandler::giveSpells( const CGTownInstance *t, const CGHeroInstance *h )
{
	if(!vstd::contains(h->artifWorn,17))
		return; //hero hasn't spellbok
	ChangeSpells cs;
	cs.hid = h->id;
	cs.learn = true;
	for(int i=0; i<std::min(t->mageGuildLevel(),h->getSecSkillLevel(7)+4);i++)
	{
		for(int j=0; j<t->spellsAtLevel(i+1,true) && j<t->spells[i].size(); j++)
		{
			if(!vstd::contains(h->spells,t->spells[i][j]))
				cs.spells.insert(t->spells[i][j]);
		}
	}
	if(cs.spells.size())
		sendAndApply(&cs);
}