// player-specific thinkers

Class SWWMStaticThinker : Thinker abstract
{
	// shell class to iterate easier on sanity checks
	// all subclasses should be guaranteed to have a statnum of STAT_STATIC
	// if they don't, something is very wrong
}

// "Full History" contains all messages since session start, nothing is flushed
// this can be accessed from a section of the knowledge base
Class SWWMFullHistory : SWWMStaticThinker
{
	String lastmap;
	Array<MsgLine> msg;

	static clearscope SWWMFullHistory Get()
	{
		let fh = SWWMFullHistory(ThinkerIterator.Create("SWWMFullHistory",STAT_STATIC).Next());
		return fh;
	}

	static play void PushMessage( String str, int tic, int type )
	{
		let fh = SWWMFullHistory(ThinkerIterator.Create("SWWMFullHistory",STAT_STATIC).Next());
		if ( !fh )
		{
			fh = new("SWWMFullHistory");
			fh.ChangeStatNum(STAT_STATIC);
		}
		MsgLine m;
		if ( level.mapname != fh.lastmap )
		{
			// push a map change label
			m = new("MsgLine");
			m.str = level.levelname;
			m.type = -1;
			fh.lastmap = level.mapname;
			fh.msg.Push(m);
		}
		m = new("MsgLine");
		m.str = str;
		m.tic = tic;
		m.type = type;
		fh.msg.Push(m);
	}
}

// Dedicated mission log (for custom maps)
Class SWWMMissionLog : SWWMStaticThinker
{
	Array<String> entries;
	bool clockset;
	int year, month, day, hour, minute;
	String tz;

	static clearscope SWWMMissionLog Get()
	{
		let ml = SWWMMissionLog(ThinkerIterator.Create("SWWMMissionLog",STAT_STATIC).Next());
		return ml;
	}

	static play void AddLog( String str )
	{
		let ml = SWWMMissionLog(ThinkerIterator.Create("SWWMMissionLog",STAT_STATIC).Next());
		if ( !ml )
		{
			ml = new("SWWMMissionLog");
			ml.ChangeStatNum(STAT_STATIC);
		}
		if ( ml.entries.Find(str) < ml.entries.Size() ) return;
		ml.entries.Push(str);
		Console.Printf(StringTable.Localize("$SWWM_NEWMISSION"));
	}

	static play void SetClock( int year, int month, int day, int hour, int minute, String tz = "JST" )
	{
		let ml = SWWMMissionLog(ThinkerIterator.Create("SWWMMissionLog",STAT_STATIC).Next());
		if ( !ml )
		{
			ml = new("SWWMMissionLog");
			ml.ChangeStatNum(STAT_STATIC);
		}
		ml.clockset = true;
		ml.year = year;
		ml.month = month;
		ml.day = day;
		ml.hour = hour;
		ml.minute = minute;
		ml.tz = tz;
	}
}

// Stats
Class WeaponUsage
{
	Class<Weapon> w;
	int kills;
}

Class MonsterKill
{
	Class<Actor> m;
	int kills;
}

Class LevelStat
{
	bool hub;
	String levelname, mapname;
	int kcount, ktotal;
	int icount, itotal;
	int scount, stotal;
	int time, par, suck;
}

Class SWWMStats : SWWMStaticThinker
{
	PlayerInfo myplayer;
	int lastspawn, dashcount, boostcount, stompcount, airtime, kills,
		deaths,	damagedealt, hdamagedealt, damagetaken, hdamagetaken,
		mkill, hiscore, topdealt, toptaken, skill, wponch,
		busts, buttslams, secrets, items, parries, pparries, pats,
		befriend, smooch;
	double grounddist, airdist, swimdist, fuelusage, topspeed, teledist;
	Array<WeaponUsage> wstats;
	Array<MonsterKill> mstats;
	Array<LevelStat> lstats;
	Array<Class<Weapon> > alreadygot;
	int favweapon;
	// these two are used for mission updates
	Array<int> clustervisit;
	Array<bool> secretdone;
	// hackaround for stuff getting lost
	Array<Class<SWWMCollectible> > ownedcollectibles;
	int plushuses;
	// for pistol start info (to avoid it within hubs)
	int lastcluster;
	// for trash removal achievement
	int nazicleanup;
	// stored for hexen
	int puzzlecnt, realpuzzlecnt;
	// easter eggs
	int silveregg, quadegg;
	bool oldcheat;
	bool gotyorick;
	// caching
	SWWMHandler hnd;

	bool GotWeapon( Class<Weapon> which )
	{
		for ( int i=0; i<alreadygot.Size(); i++ )
		{
			if ( alreadygot[i] == which ) return true;
		}
		alreadygot.Push(which);
		return false;
	}

	private Class<Weapon> WeaponFromInflictor( Actor inflictor, Name damagetype )
	{
		Class<Weapon> which = myplayer.ReadyWeapon?myplayer.ReadyWeapon.GetClass():null;
		if ( inflictor is 'SWWMPuff' ) inflictor = inflictor.master;	// special puffs transfer real inflictor through master pointer
		if ( inflictor is 'Weapon' ) which = Weapon(inflictor).GetClass();
		if ( which is 'DualExplodiumGun' ) which = 'ExplodiumGun';	// don't credit sister weapon
		if ( inflictor && inflictor.FindInventory("ParriedBuff") ) which = 'DoomWeapon';	// gross hack
		// properly credit some projectiles to their respective gun
		else if ( inflictor is 'AirBullet' ) which = 'DeepImpact';
		else if ( (inflictor is 'HammerShockwave') || (inflictor is 'HammerRadiusShockwave') ) which = 'ItamexHammer';
		else if ( (inflictor is 'ExplodiumMagArm') || (inflictor is 'ExplodiumMagProj') || (inflictor is 'ExplodiumBulletImpact') ) which = 'ExplodiumGun';
		else if ( (inflictor is 'GoldenSubImpact') || (inflictor is 'GoldenSubSubImpact') ) which = 'Spreadgun';
		else if ( (inflictor is 'EvisceratorChunk') || (inflictor is 'EvisceratorProj') ) which = 'Eviscerator';
		else if ( inflictor is 'SheenTrail' ) which = 'HeavyMahSheenGun';
		else if ( (inflictor is 'HellblazerMissile') || (inflictor is 'HellblazerArm') ) which = 'Hellblazer';
		else if ( (inflictor is 'QuadProj') || (inflictor is 'QuadExplArm') || (inflictor is 'OnFire') ) which = 'Quadravol';
		else if ( (inflictor is 'BigBiospark') || (inflictor is 'BiosparkBall') || (inflictor is 'BiosparkBeamImpact') || (inflictor is 'BiosparkComboImpact') || (inflictor is 'BiosparkComboImpactSub') || (inflictor is 'BiosparkBeam') || (inflictor is 'BiosparkArc') || (inflictor is 'BiosparkCore') ) which = 'Sparkster';
		else if ( (inflictor is 'SilverAirRip') || (inflictor is 'SilverImpact') ) which = 'SilverBullet';
		else if ( (inflictor is 'CandyBeam') || (inflictor is 'CandyPop') || (inflictor is 'CandyMagArm') || (inflictor is 'CandyGunProj') || (inflictor is 'CandyMagProj') || (inflictor is 'CandyBulletImpact') ) which = 'CandyGun';
		else if ( (inflictor is 'MisterBulletImpact') || (inflictor is 'MisterPop') || (inflictor is 'MisterFuzzy') || (inflictor is 'MisterGrenade') || (inflictor is 'MisterRailBeam') ) which = 'MisterRifle';
		else if ( (inflictor is 'YnykronBeam') || (inflictor is 'YnykronImpact') || (inflictor is 'YnykronSingularity') || (inflictor is 'YnykronCloud') || (inflictor is 'YnykronVoidBeam') || (inflictor is 'YnykronLightningArc') || (inflictor is 'YnykronLightningImpact') ) which = 'Ynykron';
		else if ( (inflictor is 'Demolitionist') || (inflictor is 'DemolitionistShockwave') || (inflictor is 'DemolitionistRadiusShockwave') || (inflictor is 'SWWMGesture')
			|| (inflictor is 'SWWMItemGesture') ) which = 'SWWMWeapon';	// hack to assume Demolitionist as weapon
		else if ( inflictor is 'BigPunchSplash' )
		{
			// guess from damagetype
			if ( (damagetype == 'Jump') || (damagetype == 'Dash') || (damagetype == 'Buttslam') || (damagetype == 'GroundPound') )
				which = 'SWWMWeapon';
			else if ( damagetype == 'Love' )
				which = 'SWWMGesture';
			// others are just weapon melee, so keep the readyweapon
		}
		else if ( inflictor is 'FroggyChair' )
			which = 'SWWMItemGesture';	// more gross hacks
		if ( damagetype == 'Falling' )
			which = 'Weapon';	// the gross hacks continue
		return which;
	}

	void AddDamageDealt( int dmg )
	{
		int upper = dmg/1000000000;
		int lower = dmg%1000000000;
		if ( hdamagedealt+upper > 999999999 ) hdamagedealt = 999999999;
		else hdamagedealt += upper;
		damagedealt += lower;
		if ( damagedealt > 999999999 )
		{
			upper = damagedealt/1000000000;
			lower = damagedealt%1000000000;
			if ( hdamagedealt+upper > 999999999 ) hdamagedealt = 999999999;
			else hdamagedealt += upper;
			damagedealt = lower;
		}
	}
	void AddDamageTaken( int dmg )
	{
		int upper = dmg/1000000000;
		int lower = dmg%1000000000;
		if ( hdamagetaken+upper > 999999999 ) hdamagetaken = 999999999;
		else hdamagetaken += upper;
		damagetaken += lower;
		if ( damagetaken > 999999999 )
		{
			upper = damagetaken/1000000000;
			lower = damagetaken%1000000000;
			if ( hdamagetaken+upper > 999999999 ) hdamagetaken = 999999999;
			else hdamagetaken += upper;
			damagetaken = lower;
		}
	}

	void AddLevelStats()
	{
		let ls = new("LevelStat");
		ls.hub = !!(level.clusterflags&level.CLUSTER_HUB);
		ls.levelname = level.levelname;
		int iof = ls.levelname.IndexOf(" - by: ");
		if ( iof != -1 ) ls.levelname.Truncate(iof);
		ls.mapname = level.mapname;
		ls.kcount = level.killed_monsters;
		ls.ktotal = level.total_monsters;
		ls.icount = level.found_items;
		ls.itotal = level.total_items;
		ls.scount = level.found_secrets;
		ls.stotal = level.total_secrets;
		ls.time = level.maptime;
		ls.par = level.partime;
		ls.suck = level.sucktime;
		lstats.Push(ls);
	}

	void AddWeaponKill( Actor inflictor, Actor victim, Name damagetype )
	{
		if ( victim )
		{
			if ( !hnd ) hnd = SWWMHandler(EventHandler.Find("SWWMHandler"));
			Class<Actor> mvictim = SWWMUtility.MergeMonster(hnd,victim.GetClass());
			bool found = false;
			for ( int i=0; i<mstats.Size(); i++ )
			{
				if ( mstats[i].m != mvictim ) continue;
				found = true;
				mstats[i].kills++;
				break;
			}
			if ( !found )
			{
				let ms = new("MonsterKill");
				ms.m = mvictim;
				ms.kills = 1;
				mstats.Push(ms);
			}
		}
		Class<Weapon> which = WeaponFromInflictor(inflictor,damagetype);
		if ( !which ) return;
		for ( int i=0; i<wstats.Size(); i++ )
		{
			if ( wstats[i].w != which ) continue;
			wstats[i].kills++;
			if ( (favweapon == -1) || (wstats[favweapon].kills < wstats[i].kills) ) favweapon = i;
			return;
		}
		let ws = new("WeaponUsage");
		ws.w = which;
		ws.kills = 1;
		wstats.Push(ws);
		if ( (favweapon == -1) || (wstats[favweapon].kills < ws.kills) )
			favweapon = wstats.Size()-1;
	}

	static clearscope SWWMStats Find( PlayerInfo p )
	{
		let ti = ThinkerIterator.Create("SWWMStats",STAT_STATIC);
		SWWMStats t;
		while ( t = SWWMStats(ti.Next()) )
		{
			if ( t.myplayer != p ) continue;
			return t;
		}
		return null;
	}
}

// Scoring
Class SWWMCredits : SWWMStaticThinker
{
	PlayerInfo myplayer;
	int credits;

	static void Give( PlayerInfo p, int amount )
	{
		let c = Find(p);
		if ( !c ) return;
		// safeguard
		if ( amount < 0 ) ThrowAbortException("SWWMCredits.Give() called with negative amount");
		if ( c.credits+amount < c.credits ) c.credits = 999999999;
		else c.credits = min(999999999,c.credits+amount);
		let s = SWWMStats.Find(p);
		if ( s && (c.credits > s.hiscore) ) s.hiscore = c.credits;
		SWWMLoreLibrary.Add(p,"ScoreSystem");
	}

	static clearscope bool CanTake( PlayerInfo p, int amount )
	{
		let c = Find(p);
		if ( !c ) return false;
		// safeguard
		if ( amount < 0 ) ThrowAbortException("SWWMCredits.CanTake() called with negative amount");
		// too much!
		if ( (amount > 999999999) || (c.credits-amount < 0) || (c.credits-amount > c.credits) ) return false;
		return true;
	}

	static bool Take( PlayerInfo p, int amount, int hamount = 0 )
	{
		let c = Find(p);
		if ( !c ) return false;
		// safeguard
		if ( amount < 0 ) ThrowAbortException("SWWMCredits.Take() called with negative amount");
		// too much!
		if ( (amount > 999999999) || (c.credits-amount < 0) || (c.credits-amount > c.credits) ) return false;
		c.credits -= amount;
		return true;
	}

	static clearscope int Get( PlayerInfo p )
	{
		let c = Find(p);
		if ( !c ) return 0;
		return c.credits;
	}

	static clearscope SWWMCredits Find( PlayerInfo p )
	{
		let ti = ThinkerIterator.Create("SWWMCredits",STAT_STATIC);
		SWWMCredits t;
		while ( t = SWWMCredits(ti.Next()) )
		{
			if ( t.myplayer != p ) continue;
			return t;
		}
		return null;
	}
}

// Lore holder
enum ELoreTab
{
	LORE_ITEM,
	LORE_ENEMY,
	LORE_PEOPLE,
	LORE_LORE	// lol
};

Class SWWMLore
{
	String tag, text, assoc;
	TextureID img;
	int tab;
	bool read;
}

Class SWWMLoreLibrary : SWWMStaticThinker
{
	PlayerInfo myplayer;
	Array<SWWMLore> ent;
	int lastaddtic;

	static bool PreVerify( String ref )
	{
		// restrictions
		let mlog = SWWMMissionLog.Get();
		if ( !(gameinfo.gametype&GAME_Raven) && (!mlog || ((mlog.year < 2171) && (mlog.month < 3))) )
		{
			if ( ref ~== "Parthoris" ) return true;
			if ( ref ~== "Sidhe" ) return true;
			if ( ref ~== "SerpentRiders" ) return true;
		}
		if ( !(gameinfo.gametype&GAME_Hexen) && (!mlog || ((mlog.year < 2171) && (mlog.month < 4))) )
		{
			if ( ref ~== "Cronos" ) return true;
			if ( ref ~== "Kirin" ) return true;	// not met
			if ( ref ~== "Alakir" ) return true;	// likewise
			if ( ref ~== "Fabricator" ) return true;	// not yet introduced
			if ( ref ~== "Administrators" ) return true;	// not met
		}
		// check if entry is for a collectible
		for ( int i=0; i<AllActorClasses.Size(); i++ )
		{
			let c = (Class<SWWMCollectible>)(AllActorClasses[i]);
			if ( !c || (c == 'SWWMCollectible') ) continue;
			let def = GetDefaultByType(c);
			// skip if we match and it's not for this game
			if ( (c.GetClassName() == ref) && !def.ValidGame() )
				return true;
		}
		ref = ref.MakeUpper();
		String tag = String.Format("SWWM_LORETAG_%s",ref);
		String tab = String.Format("SWWM_LORETAB_%s",ref);
		String text = String.Format("SWWM_LORETXT_%s",ref);
		// check that it's valid
		if ( StringTable.Localize(tag,false) == tag ) return true;
		if ( StringTable.Localize(tab,false) == tab )
		{
			Console.Printf("Entry \"%s\" defines no tab.",ref);
			return true;
		}
		if ( StringTable.Localize(text,false) == text )
		{
			Console.Printf("Entry \"%s\" defines no text.",ref);
			return true;
		}
		return false;
	}

	bool DirectAdd( String ref )
	{
		if ( PreVerify(ref) ) return true;
		return InternalAdd(ref);
	}

	private bool InternalAdd( String ref )
	{
		ref = ref.MakeUpper();
		String tag = String.Format("SWWM_LORETAG_%s",ref);
		String tab = String.Format("SWWM_LORETAB_%s",ref);
		String text = String.Format("SWWM_LORETXT_%s",ref);
		String assoc = String.Format("SWWM_LOREREL_%s",ref);
		// redirects
		let mlog = SWWMMissionLog.Get();
		if ( (gameinfo.gametype&GAME_Hexen) || (mlog && (mlog.year >= 2171) && (mlog.month >= 4)) )
		{
			if ( text ~== "SWWM_LORETXT_AKARIPROJECT" )
				text = "SWWM_LORETXT_AKARIPROJECT3";	// mentions kirin
			else if ( text ~== "SWWM_LORETXT_ANARUKON" )
				text = "SWWM_LORETXT_ANARUKON2";	// comments from miyamoto-xanai wedding
			else if ( text ~== "SWWM_LORETXT_BRCALBUM" )
				text = "SWWM_LORETXT_BRCALBUM2";	// comment about kirin's song
			else if ( text ~== "SWWM_LORETXT_DEMOLITIONIST" )
				text = "SWWM_LORETXT_DEMOLITIONIST3";	// married to kirin
			else if ( text ~== "SWWM_LORETXT_DEMONINVASION" )
				text = "SWWM_LORETXT_DEMONINVASION4";	// meeting with azkhan
			else if ( text ~== "SWWM_LORETXT_GHOULHUNT" )
				text = "SWWM_LORETXT_GHOULHUNT2";	// met anthon anderken during the wedding
			else if ( text ~== "SWWM_LORETXT_GODS" )
				text = "SWWM_LORETXT_GODS2";	// beyond gods
			else if ( text ~== "SWWM_LORETXT_HELL" )
				text = "SWWM_LORETXT_HELL4";	// met father nostros during the wedding
			else if ( text ~== "SWWM_LORETXT_IBUKIMILK" )
				text = "SWWM_LORETXT_IBUKIMILK3";	// tasted by kirin
			else if ( text ~== "SWWM_LORETXT_MAIDBOT" )
				text = "SWWM_LORETXT_MAIDBOT2";	// married to kirin
			else if ( text ~== "SWWM_LORETXT_NANA" )
				text = "SWWM_LORETXT_NANA3";	// stuff that happened at the wedding
			else if ( text ~== "SWWM_LORETXT_NOVOSKHANA" )
				text = "SWWM_LORETXT_NOVOSKHANA2";	// met up with the empress
			else if ( text ~== "SWWM_LORETXT_RAGEKIT" )
				text = "SWWM_LORETXT_RAGEKIT2";	// kirin's reactions to demo using this item
			else if ( text ~== "SWWM_LORETXT_SANKAIDERIHA" )
				text = "SWWM_LORETXT_SANKAIDERIHA2";	// comments about kirin
			else if ( text ~== "SWWM_LORETXT_SAYA" )
				text = "SWWM_LORETXT_SAYA3";	// married kirin
			else if ( text ~== "SWWM_LORETXT_SAFETYTETHER" )
				text = "SWWM_LORETXT_SAFETYTETHER2";	// we're in cronos now
			else if ( text ~== "SWWM_LORETXT_SERPENTRIDERS" )
				text = "SWWM_LORETXT_SERPENTRIDERS2";	// defeated d'sparil
			else if ( text ~== "SWWM_LORETXT_XANIMEN" )
				text = "SWWM_LORETXT_XANIMEN2";	// footnote about nuoma
			else if ( text ~== "SWWM_LORETXT_YNYKRON" )
				text = "SWWM_LORETXT_YNYKRON2";	// confirmed to harm (but not kill) gods
			else if ( text ~== "SWWM_LORETXT_ZANAVETH2" )
				text = "SWWM_LORETXT_ZANAVETH22";	// met at wedding
			else if ( text ~== "SWWM_LORETXT_MADCAT" )
				text = "SWWM_LORETXT_MADCAT3";	// demolition quest released
			else if ( text ~== "SWWM_LORETXT_MARISA" )
				text = "SWWM_LORETXT_MARISA3";	// post-wedding update
		}
		if ( (gameinfo.gametype&GAME_Raven) || (mlog && (mlog.year >= 2171) && (mlog.month >= 3)) )
		{
			if ( text ~== "SWWM_LORETXT_AKARIPROJECT" )
				text = "SWWM_LORETXT_AKARIPROJECT2";	// fiction becomes reality
			else if ( text ~== "SWWM_LORETXT_ARCHDEMONS" )
				text = "SWWM_LORETXT_ARCHDEMONS3";	// archdemon generals assassinated
			else if ( text ~== "SWWM_LORETXT_DECADEMECH" )
				text = "SWWM_LORETXT_DECADEMECH2";	// extra info
			else if ( text ~== "SWWM_LORETXT_DEMONINVASION" )
				text = "SWWM_LORETXT_DEMONINVASION3";	// events of doom 64 and such
			else if ( text ~== "SWWM_LORETXT_DOOMGUY" )
				text = "SWWM_LORETXT_DOOMGUY3";	// he gone
			else if ( text ~== "SWWM_LORETXT_HELL" )
				text = "SWWM_LORETXT_HELL3";	// invasion was a thing of the past
			else if ( text ~== "SWWM_LORETXT_UAC" )
				text = "SWWM_LORETXT_UAC3";	// events of doom 64 and more
			else if ( text ~== "SWWM_LORETXT_MADCAT" )
				text = "SWWM_LORETXT_MADCAT2";	// interstellar demolitionist released
			else if ( text ~== "SWWM_LORETXT_MARISA" )
				text = "SWWM_LORETXT_MARISA2";	// post-invasion update
		}
		if ( (gameinfo.gametype&GAME_Raven) || SWWMUtility.IsEviternity() || (mlog && (mlog.year >= 2150) && (mlog.month >= 5)) )
		{
			if ( text ~== "SWWM_LORETXT_AKARILABS" )
				text = "SWWM_LORETXT_AKARILABS2";	// demo won, akari project announced
			else if ( text ~== "SWWM_LORETXT_ARCHDEMONS" )
				text = "SWWM_LORETXT_ARCHDEMONS2";	// demon invasion repelled
			else if ( text ~== "SWWM_LORETXT_BIGSHOT" )
				text = "SWWM_LORETXT_BIGSHOT2";	// predictions about crimes_m
			else if ( text ~== "SWWM_LORETXT_DEMOLITIONIST" )
				text = "SWWM_LORETXT_DEMOLITIONIST2";	// demo rewarded with maidbot frame
			else if ( text ~== "SWWM_LORETXT_DEMONINVASION" )
				text = "SWWM_LORETXT_DEMONINVASION2";	// victory against invasion
			else if ( text ~== "SWWM_LORETXT_DOOMGUY" )
				text = "SWWM_LORETXT_DOOMGUY2";	// decommissioned
			else if ( text ~== "SWWM_LORETXT_GENERICCUBE" )
				text = "SWWM_LORETXT_GENERICCUBE2";	// info from mykka
			else if ( text ~== "SWWM_LORETXT_HELL" )
				text = "SWWM_LORETXT_HELL2";	// events of tnt/plutonia
			else if ( text ~== "SWWM_LORETXT_IBUKIMILK" )
				text = "SWWM_LORETXT_IBUKIMILK2";	// tasted by demo
			else if ( text ~== "SWWM_LORETXT_NANA" )
				text = "SWWM_LORETXT_NANA2";	// demo met nana
			else if ( text ~== "SWWM_LORETXT_SAYA" )
				text = "SWWM_LORETXT_SAYA2";	// dating demo
			else if ( text ~== "SWWM_LORETXT_UAC" )
				text = "SWWM_LORETXT_UAC2";	// uac "reformed"
			else if ( text ~== "SWWM_LORETXT_VOICEBOX" )
				text = "SWWM_LORETXT_VOICEBOX2";	// remarks on demo's voice as a maidbot
			else if ( text ~== "SWWM_LORETXT_ZANAVETH3" )
				text = "SWWM_LORETXT_ZANAVETH32";	// iagb happened
		}
		// check if existing
		for ( int i=0; i<ent.Size(); i++ )
		{
			if ( ent[i].tag != "$"..tag ) continue;
			return true;
		}
		SWWMLore e = new("SWWMLore");
		e.tag = "$"..tag;
		if ( StringTable.Localize(e.tag) == "" )
		{
			Console.Printf("Entry \"%s\" has an empty tag.",ref);
			return true;
		}
		String ttab = StringTable.Localize(tab,false);
		if ( ttab ~== "People" ) e.tab = LORE_PEOPLE;
		else if ( ttab ~== "Lore" ) e.tab = LORE_LORE;
		else if ( ttab ~== "Item" ) e.tab = LORE_ITEM;
		else if ( ttab ~== "Enemy" ) e.tab = LORE_ENEMY;
		else
		{
			Console.Printf("Entry \"%s\" has an incorrect tab setting of \"%s\".",ref,ttab);
			return true;
		}
		e.text = "$"..text;
		if ( StringTable.Localize(e.text) == "" )
		{
			Console.Printf("Entry \"%s\" has empty text.",ref);
			return true;
		}
		e.assoc = "$"..assoc;
		e.read = false;
		// image for certain entries
		e.img = TexMan.CheckForTexture("graphics/KBase/PFP_"..ref..".png");
		// "new lore" message
		if ( (level.maptime > 0) && (gametic > lastaddtic) && (myplayer == players[consoleplayer]) && (!menuactive || (menuactive == Menu.OnNoPause)) && (myplayer.mo is 'Demolitionist') )
			Console.Printf(StringTable.Localize("$SWWM_NEWLORE"));
		lastaddtic = gametic;
		ent.Push(e);
		return true;
	}

	static void Add( PlayerInfo p, String ref )
	{
		if ( deathmatch || PreVerify(ref) ) return;
		SWWMLoreLibrary ll = Find(p);
		if ( !ll )
		{
			ll = new("SWWMLoreLibrary");
			ll.ChangeStatNum(STAT_STATIC);
			ll.myplayer = p;
		}
		ll.InternalAdd(ref);
	}

	void MarkRead( int idx )
	{
		if ( (idx < 0) || (idx >= ent.Size()) ) return;
		if ( !ent[idx].read )
		{
			ent[idx].read = true;
			// add associated entries
			Array<String> rel;
			rel.Clear();
			String assocstr = StringTable.Localize(ent[idx].assoc);
			assocstr.Split(rel,";",0);
			for ( int i=0; i<rel.Size(); i++ )
			{
				if ( (rel[i] != "") && !DirectAdd(rel[i]) )
					Console.Printf("Related entry \"%s\" not found, please update LANGUAGE.txt",rel[i]);
			}
		}
	}

	clearscope int FindEntry( String tag )
	{
		for ( int i=0; i<ent.Size(); i++ )
		{
			if ( ent[i].tag ~== tag )
				return i;
		}
		return -1;
	}

	static clearscope SWWMLoreLibrary Find( PlayerInfo p )
	{
		let ti = ThinkerIterator.Create("SWWMLoreLibrary",STAT_STATIC);
		SWWMLoreLibrary ll;
		while ( ll = SWWMLoreLibrary(ti.Next()) )
		{
			if ( ll.myplayer != p ) continue;
			return ll;
		}
		return Null;
	}
}