// common code goes here
enum ESWWMGZChannels
{
	CHAN_YOUDONEFUCKEDUP = 63200,	// exception handler
	CHAN_DEMOVOICE = 63201,		// demolitionist voices
	CHAN_FOOTSTEP = 63202,		// footstep sounds and others
	CHAN_WEAPONEXTRA = 63203,	// additional weapon sounds (usually loops)
	CHAN_POWERUP = 63204,		// powerup sounds
	CHAN_POWERUPEXTRA = 63205,	// additional powerup sounds
	CHAN_JETPACK = 63206,		// jetpack sound
	CHAN_ITEMEXTRA = 63207,		// additional item sounds
	CHAN_WEAPONEXTRA2 = 63208,	// additional weapon sound slot
	CHAN_WEAPONEXTRA3 = 63209,	// additional weapon sound slot (again)
	CHAN_DAMAGE = 63210,		// used for impact/hit sounds
	CHAN_AMBEXTRA = 63211		// player ambience when submerged
};

// Future planning, will be filled out with AI stuff and whatnot someday
Class SWWMMonster : Actor abstract
{
	// integrated fun tags
	virtual clearscope String GetFunTag( String defstr = "" )
	{
		return GetTag(defstr);
	}

	// the function that should be overriden in subclasses
	virtual int HandleLocationalDamage( Actor inflictor, Actor source, int damage, Name mod, Vector3 HitLocation, int flags = 0, double angle = 0 )
	{
		return damage;
	}

	// locational damage support, akin to UE1, but hitlocation will be treated as a relative offset, to make things easier
	// this one should be called directly by everything in this mod, when possible
	int LocationalDamageMobj( Actor inflictor, Actor source, int damage, Name mod, Vector3 HitLocation, int flags = 0, double angle = 0 )
	{
		damage = HandleLocationalDamage(inflictor,source,damage,mod,HitLocation,flags,angle);
		return Super.DamageMobj(inflictor,source,damage,mod,flags,angle);
	}

	// "estimated" locational damage for the vanilla DamageMobj
	override int DamageMobj( Actor inflictor, Actor source, int damage, Name mod, int flags, double angle )
	{
		Vector3 guesspos = (0,0,Height/2.);
		// use inflictor if available, as it may be a projectile or hitscan puff
		// if damage comes from an item, use owner
		// all of this could be done better (or implemented as an engine feature), but whatever
		Actor whomst = inflictor?inflictor:source;
		if ( whomst is 'Inventory' ) whomst = Inventory(whomst).Owner;
		if ( whomst )
		{
			if ( whomst.bMISSILE || (flags&DMG_INFLICTOR_IS_PUFF) )
				guesspos = level.Vec3Diff(pos,whomst.pos);
			else guesspos = level.Vec3Diff(pos,whomst.Vec3Offset(0,0,whomst.Height/2));
			guesspos.x = clamp(guesspos.x,-radius,radius);
			guesspos.y = clamp(guesspos.y,-radius,radius);
			guesspos.z = clamp(guesspos.z,0,height);
		}
		return LocationalDamageMobj(inflictor,source,damage,mod,guesspos,flags,angle);
	}
}

// Less mean-spirited Keen
Class SWWMHangingKeen : Actor
{
	action void A_DropKeen()
	{
		Spawn("SWWMDroppedKeen",Vec3Offset(0,0,8));
	}
	override bool Used( Actor user )
	{
		// test vertical range
		Vector3 diff = level.Vec3Diff(user.Vec3Offset(0,0,user.Height/2),Vec3Offset(0,0,Height/2));
		double rang = user.player?PlayerPawn(user.player.mo).UseRange:(user.Height/2);
		if ( abs(diff.z) > rang ) return false;
		if ( Health > 0 )
		{
			DamageMobj(user,user,Health,'Untie',DMG_FORCED|DMG_THRUSTLESS);
			return true;
		}
		return false;
	}
	Default
	{
		Tag "$FN_KEEN";
		Health 100;
		Radius 10;
		Height 54;
		Mass int.max;
		PainChance 256;
		+SOLID;
		+SPAWNCEILING;
		+NOGRAVITY;
		+SHOOTABLE;
		+NOICEDEATH;
		+DONTFALL;
		+NOBLOOD;
		+DONTTHRUST;
		PainSound "keen/pain";
		DeathSound "keen/death";
	}
	States
	{
	Spawn:
		KEE2 A -1;
		Stop;
	Death:
		KEE2 A 6;
		KEE2 B 6 A_DropKeen();
		KEE2 C 6 A_Scream();
		KEE2 DE 6;
		KEE2 F 30;
		KEE2 F -1 A_KeenDie();
		Stop;
	Pain:
		KEE2 G 4;
		KEE2 G 8 A_Pain();
		Goto Spawn;
	}
}
Class SWWMDroppedKeen : Actor
{
	Default
	{
		Radius 10;
		Height 32;
		Gravity .5;
		+NOBLOCKMAP;
	}
	States
	{
	Spawn:
		KEE3 A 1 A_JumpIf(pos.z<=floorz,1);
		Wait;
		KEE3 B 1 { vel.z = 4; }
		KEE3 B 1 A_JumpIf(pos.z<=floorz,1);
		Wait;
		KEE3 B 1 { vel.z = 2; }
		KEE3 B 1 A_JumpIf(pos.z<=floorz,1);
		Wait;
		KEE3 B 12;
		TNT1 A 1 { Spawn("TeleportFog",pos,ALLOW_REPLACE); }
		Stop;
	}
}

Class SWWMBossBrainExpl : Actor
{
	void A_Ignite()
	{
		A_QuakeEx(3,3,3,20,0,400,"",QF_RELATIVE|QF_SCALEDOWN,falloff:300,rollintensity:2.);
		A_StartSound("explodium/hit",CHAN_VOICE,CHANF_DEFAULT,.4,.5);
		Scale *= FRandom[ExploS](0.8,1.1);
		Scale.x *= RandomPick[ExploS](-1,1);
		Scale.y *= RandomPick[ExploS](-1,1);
		int numpt = Random[ExploS](8,16);
		for ( int i=0; i<numpt; i++ )
		{
			Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](1,6);
			let s = Spawn("SWWMSmoke",pos);
			s.vel = pvel;
			s.SetShade(Color(1,1,1)*Random[ExploS](64,224));
			s.special1 = Random[ExploS](1,4);
			s.scale *= 2.8;
			s.alpha *= .4;
		}
		numpt = Random[ExploS](5,10);
		for ( int i=0; i<numpt; i++ )
		{
			Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](2,12);
			let s = Spawn("SWWMSpark",pos);
			s.vel = pvel;
		}
		numpt = Random[ExploS](10,15);
		for ( int i=0; i<numpt; i++ )
		{
			Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](2,24);
			let s = Spawn("SWWMChip",pos);
			s.vel = pvel;
		}
		numpt = int(Random[ExploS](-1,2)+special1);
		for ( int i=0; i<numpt; i++ )
		{
			let s = Spawn("SWWMBossBrainExplArm",pos);
			s.target = target;
		}
	}
	Default
	{
		RenderStyle "Add";
		Scale 2.5;
		Radius .1;
		Height 0.;
		+NOGRAVITY;
		+NOBLOCKMAP;
		+NOINTERACTION;
		+DONTSPLASH;
		+NOTELEPORT;
		+FORCEXYBILLBOARD;
	}
	States
	{
	Spawn:
		TNT1 A 10;
		TNT1 A 0 A_Ignite();
		XEX1 ABCDEFGHIJKLMNOPQRSTUVWXYZ[\] 1 Bright;
		Stop;
	}
}
Class SWWMBossBrainExplArm : Actor
{
	Default
	{
		PROJECTILE;
		+THRUACTORS;
		+BOUNCEONWALLS;
		+BOUNCEONFLOORS;
		+BOUNCEONCEILINGS;
		-NOGRAVITY;
		Gravity 0.35;
		BounceFactor 1.0;
		Radius 4;
		Height 4;
	}
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		reactiontime = Random[ExploS](10,15);
		double ang, pt;
		ang = FRandom[ExploS](0,360);
		pt = FRandom[ExploS](-90,90);
		vel = (cos(ang)*cos(pt),sin(ang)*cos(pt),-sin(pt))*FRandom[ExploS](8.,20.);
	}
	States
	{
	Spawn:
		TNT1 A 1
		{
			A_CountDown();
			Spawn("ExplodiumMagTrail",pos);
			Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](1,5);
			let s = Spawn("SWWMHalfSmoke",pos);
			s.vel = pvel+vel*.2;
			s.SetShade(Color(1,1,1)*Random[ExploS](64,224));
			s.special1 = Random[ExploS](1,3);
			s.scale *= 2.4;
			s.alpha *= 0.1+.4*(ReactionTime/15.);
		}
		Wait;
	}
}
Class SWWMBossBrainPain : Actor
{
	Default
	{
		RenderStyle "Add";
		Radius .1;
		Height 0.;
	}
	States
	{
	Spawn:
		MBRN B 1 Bright A_FadeOut(.05);
		Wait;
	}
}
Class SWWMBossBrain : BossBrain
{
	bool eyeless;
	int smallcooldown;

	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		let ti = ThinkerIterator.Create("BossEye");
		if ( ti.Next() ) eyeless = false;
		else eyeless = true;
	}

	void SpawnBrainExpl( bool death = false )
	{
		if ( death )
		{
			// big explosions throughout
			for ( int x=-350; x<=350; x+=5 )
			{
				let s = Spawn("SWWMBossBrainExpl",Vec2OffsetZ(x,-280,Random[BrainExplode](120,500)));
				s.tics = Random[BrainExplode](5,120);
				s.special1 = Random[BrainExplode](0,3);
			}
			return;
		}
		if ( level.maptime < smallcooldown ) return;
		smallcooldown = level.maptime+10;
		// small explosion on brain hole
		for ( int x=-40; x<=40; x+=10 )
		{
			let s = Spawn("SWWMBossBrainExpl",Vec2OffsetZ(x,-280,Random[BrainExplode](380,420)));
			s.tics = Random[BrainExplode](1,8);
			s.scale *= .5;
		}
	}

	Default
	{
		Tag "$FN_BOSSBRAIN";
		Radius 20;
		Height 40;
		+NOBLOOD;
		+COUNTKILL;
	}
	States
	{
	Spawn:
		MBRN A -1;
		Stop;
	Pain:
		MBRN A 10
		{
			A_StartSound("brain/pain",CHAN_VOICE,attenuation:ATTN_NONE);
			A_QuakeEx(3,3,3,15,0,65535,"",QF_RELATIVE|QF_SCALEDOWN,rollIntensity:.3);
			if ( !eyeless ) SpawnBrainExpl(false);
			Spawn("SWWMBossBrainPain",pos);
		}
		Goto Spawn;
	Death:
		MBRN A 120
		{
			A_StartSound("brain/death",CHAN_VOICE,attenuation:ATTN_NONE);
			A_QuakeEx(9,9,9,120,0,65535,"",QF_RELATIVE|QF_SCALEDOWN,rollIntensity:1.);
			if ( !eyeless ) SpawnBrainExpl(true);
			Spawn("SWWMBossBrainPain",pos);
		}
		MBRN A -1 A_BrainDie();
		Stop;
	}
}

// imitates UE1 light type LT_TexturePaletteOnce/LT_TexturePaletteLoop
Class PaletteLight : PointLight
{
	Color pal[256];
	bool IsLooping;
	int InitialReactionTime;

	Default
	{
		Tag "Explosion";
		Args 0,0,0,80;
		ReactionTime 15;
	}
	private void UpdateLight()
	{
		int index = clamp(255-((255*ReactionTime)/abs(InitialReactionTime)),0,255);
		args[LIGHT_RED] = pal[index].r;
		args[LIGHT_GREEN] = pal[index].g;
		args[LIGHT_BLUE] = pal[index].b;
	}
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		InitialReactionTime = ReactionTime;
		String palname = GetTag();
		int sep = palname.IndexOf(",");
		int palnum = 0;
		if ( sep != -1 )
		{
			String palnumstr = palname.Mid(sep+1);
			palnum = palnumstr.ToInt()*768;
			palname.Truncate(sep);
		}
		int lump = Wads.CheckNumForFullname(String.Format("palettes/%s.pal",palname));
		String paldat = Wads.ReadLump(lump);
		for ( int i=0; i<256; i++ )
		{
			pal[i].r = paldat.ByteAt(palnum++);
			pal[i].g = paldat.ByteAt(palnum++);
			pal[i].b = paldat.ByteAt(palnum++);
		}
		if ( ReactionTime < 0 )
		{
			ReactionTime = -ReactionTime;
			IsLooping = true;
		}
		UpdateLight();
	}
	override void Tick()
	{
		Super.Tick();
		if ( isFrozen() ) return;
		ReactionTime--;
		if ( ReactionTime < 0 )
		{
			if ( !IsLooping )
			{
				Destroy();
				return;
			}
			else ReactionTime = abs(InitialReactionTime);
		}
		if ( target ) SetOrigin(target.pos,true);
		UpdateLight();
	}
}

// Generic smoke, lightweight tick
Class SWWMSmoke : Actor
{
	Default
	{
		RenderStyle "Shaded";
		StencilColor "FFFFFF";
		Radius 2;
		Height 2;
		+NOBLOCKMAP;
		+NOGRAVITY;
		+DONTSPLASH;
		+FORCEXYBILLBOARD;
		+ROLLSPRITE;
		+ROLLCENTER;
		+THRUACTORS;
		+NOTELEPORT;
		+NOINTERACTION;
		Scale .3;
		FloatBobPhase 0;
	}

	override void PostBeginPlay()
	{
		double ang, pt;
		scale *= FRandom[Puff](.5,1.5);
		alpha = min(1.,alpha*FRandom[Puff](.5,1.5));
		ang = FRandom[Puff](0,360);
		pt = FRandom[Puff](-90,90);
		vel += (cos(pt)*cos(ang),cos(pt)*sin(ang),-sin(pt))*FRandom[Puff](.2,.8);
		roll = Frandom[Puff](0,360);
		scale.x *= RandomPick[Puff](-1,1);
		scale.y *= RandomPick[Puff](-1,1);
	}
	override void Tick()
	{
		prev = pos;	// for interpolation
		if ( isFrozen() ) return;
		vel *= .96;
		vel.z += .01;
		// linetrace-based movement (hopefully more reliable than traditional methods)
		Vector3 dir = vel;
		double spd = vel.length();
		dir /= spd;
		double dist = spd;
		FLineTraceData d;
		Vector3 newpos = pos;
		int nstep = 0;
		while ( dist > 0 )
		{
			// safeguard, too many bounces
			if ( nstep > MAXBOUNCEPERTIC )
			{
				Destroy();
				return;
			}
			double ang = atan2(dir.y,dir.x);
			double pt = asin(-dir.z);
			LineTrace(ang,dist,pt,TRF_THRUACTORS|TRF_THRUHITSCAN|TRF_ABSPOSITION,newpos.z,newpos.x,newpos.y,d);
			Vector3 hitnormal = -d.HitDir;
			if ( d.HitType == TRACE_HitFloor )
			{
				if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.top.Normal;
				else hitnormal = d.HitSector.floorplane.Normal;
			}
			else if ( d.HitType == TRACE_HitCeiling )
			{
				if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.bottom.Normal;
				else hitnormal = d.HitSector.ceilingplane.Normal;
			}
			else if ( d.HitType == TRACE_HitWall )
			{
				hitnormal = (-d.HitLine.delta.y,d.HitLine.delta.x,0).unit();
				if ( !d.LineSide ) hitnormal *= -1;
			}
			dist -= d.Distance;
			if ( d.HitType != TRACE_HitNone )
			{
				// should only happen if we bounced
				dir = d.HitDir-(FRandom[Puff](1.,1.2)*hitnormal*(d.HitDir dot hitnormal));
				vel = dir*spd;
				newpos = d.HitLocation+hitnormal;
			}
			else newpos = level.Vec3Offset(newpos,dir*spd);
			nstep++;
		}
		SetOrigin(newpos,true);
		UpdateWaterLevel();
		if ( (waterlevel > 0) && !bAMBUSH )
		{
			let b = Spawn("SWWMBubble",pos);
			b.scale *= abs(scale.x);
			b.vel = vel;
			Destroy();
			return;
		}
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}

	States
	{
	Spawn:
		XSMK ABCDEFGHIJKLMNOPQRST 1 A_SetTics(1+special1);
		Stop;
	}
}

// strictly non-interacting smoke, much lighter tick, used for heavier effects
Class SWWMHalfSmoke : Actor
{
	Default
	{
		RenderStyle "Shaded";
		StencilColor "FFFFFF";
		Radius 0.1;
		Height 0;
		+NOBLOCKMAP;
		+NOGRAVITY;
		+DONTSPLASH;
		+FORCEXYBILLBOARD;
		+ROLLSPRITE;
		+ROLLCENTER;
		+NOTELEPORT;
		+NOINTERACTION;
		Scale 0.3;
		FloatBobPhase 0;
	}
	override void PostBeginPlay()
	{
		double ang, pt;
		scale *= FRandom[Puff](0.5,1.5);
		alpha *= FRandom[Puff](0.5,1.5);
		ang = FRandom[Puff](0,360);
		pt = FRandom[Puff](-90,90);
		vel += (cos(pt)*cos(ang),cos(pt)*sin(ang),-sin(pt))*FRandom[Puff](0.2,0.8);
		roll = Frandom[Puff](0,360);
		scale.x *= RandomPick[Puff](-1,1);
		scale.y *= RandomPick[Puff](-1,1);
	}
	override void Tick()
	{
		prev = pos;	// for interpolation
		if ( isFrozen() ) return;
		vel *= 0.96;
		vel.z += 0.01;
		SetOrigin(level.Vec3Offset(pos,vel),true);
		UpdateWaterLevel();
		if ( (waterlevel > 0) && !bAMBUSH )
		{
			let b = Spawn("SWWMBubble",pos);
			b.scale *= abs(scale.x);
			b.vel = vel;
			Destroy();
			return;
		}
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}

	States
	{
	Spawn:
		XSMK ABCDEFGHIJKLMNOPQRST 1 A_SetTics(1+special1);
		Stop;
	}
}

Class SWWMSmallSmoke : SWWMHalfSmoke
{
	override void PostBeginPlay()
	{
		double ang, pt;
		scale *= FRandom[Puff](0.1,0.3);
		alpha *= FRandom[Puff](0.5,1.5);
		ang = FRandom[Puff](0,360);
		pt = FRandom[Puff](-90,90);
		vel += (cos(pt)*cos(ang),cos(pt)*sin(ang),-sin(pt))*FRandom[Puff](0.04,0.16);
		roll = Frandom[Puff](0,360);
		scale.x *= RandomPick[Puff](-1,1);
		scale.y *= RandomPick[Puff](-1,1);
	}

	States
	{
	Spawn:
		QSM6 ABCDEFGHIJKLMNOPQR 1 A_SetTics(1+special1);
		Stop;
	}
}

// visual smoke, very strictly non-interacting, updates even when game is frozen
Class SWWMViewSmoke : SWWMHalfSmoke
{
	Vector3 ofs, vvel;

	override void PostBeginPlay()
	{
		double ang, pt;
		scale *= FRandom[Puff](0.1,0.3);
		alpha *= FRandom[Puff](0.5,1.5);
		ang = FRandom[Puff](0,360);
		pt = FRandom[Puff](-90,90);
		vvel += (cos(pt)*cos(ang),cos(pt)*sin(ang),-sin(pt))*FRandom[Puff](0.04,0.16);
	}

	override void Tick()
	{
		prev = pos;	// for interpolation
		if ( !target || !target.player )
		{
			Destroy();
			return;
		}
		Vector3 x, y, z;
		[x, y, z] = swwm_CoordUtil.GetAxes(target.pitch,target.angle,target.roll);
		Vector3 origin = level.Vec3Offset(target.Vec2OffsetZ(0,0,target.player.viewz),x*ofs.x+y*ofs.y+z*ofs.z);
		SetOrigin(origin,true);
		UpdateWaterLevel();
		bInvisible = (players[consoleplayer].camera != target);
		ofs += vvel;
		vvel *= 0.96;
		vvel.z += 0.01;
		if ( (waterlevel > 0) && !bAMBUSH ) Destroy();
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}
}

Class SWWMBubble : Actor
{
	Default
	{
		RenderStyle "Add";
		Radius 2;
		Height 2;
		+NOBLOCKMAP;
		+NOGRAVITY;
		+DONTSPLASH;
		+FORCEXYBILLBOARD;
		+NOTELEPORT;
		+THRUACTORS;
		+NOINTERACTION;
		Scale 0.5;
		FloatBobPhase 0;
	}
	override void PostBeginPlay()
	{
		double ang, pt;
		scale *= FRandom[Puff](0.5,1.5);
		ang = FRandom[Puff](0,360);
		pt = FRandom[Puff](-90,90);
		vel += (cos(pt)*cos(ang),cos(pt)*sin(ang),-sin(pt))*FRandom[Puff](0.2,0.8);
		if ( waterlevel <= 0 ) Destroy();
		SetState(ResolveState("Spawn")+Random[Puff](0,19));
	}
	override void Tick()
	{
		prev = pos;
		if ( isFrozen() ) return;
		vel *= 0.96;
		vel.z += 0.05;
		// linetrace-based movement (hopefully more reliable than traditional methods)
		Vector3 dir = vel;
		double spd = vel.length();
		dir /= spd;
		double dist = spd;
		FLineTraceData d;
		Vector3 newpos = pos;
		int nstep = 0;
		while ( dist > 0 )
		{
			// safeguard, too many bounces
			if ( nstep > MAXBOUNCEPERTIC )
			{
				Destroy();
				return;
			}
			double ang = atan2(dir.y,dir.x);
			double pt = asin(-dir.z);
			LineTrace(ang,dist,pt,TRF_THRUACTORS|TRF_THRUHITSCAN|TRF_ABSPOSITION,newpos.z,newpos.x,newpos.y,d);
			Vector3 hitnormal = -d.HitDir;
			if ( d.HitType == TRACE_HitFloor )
			{
				if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.top.Normal;
				else hitnormal = d.HitSector.floorplane.Normal;
			}
			else if ( d.HitType == TRACE_HitCeiling )
			{
				if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.bottom.Normal;
				else hitnormal = d.HitSector.ceilingplane.Normal;
			}
			else if ( d.HitType == TRACE_HitWall )
			{
				hitnormal = (-d.HitLine.delta.y,d.HitLine.delta.x,0).unit();
				if ( !d.LineSide ) hitnormal *= -1;
			}
			dist -= d.Distance;
			if ( d.HitType != TRACE_HitNone )
			{
				// should only happen if we bounced
				dir = d.HitDir-(FRandom[Puff](1.,1.2)*hitnormal*(d.HitDir dot hitnormal));
				vel = dir*spd;
				newpos = d.HitLocation+hitnormal;
			}
			else newpos = level.Vec3Offset(newpos,dir*spd);
			nstep++;
		}
		SetOrigin(newpos,true);
		UpdateWaterLevel();
		if ( (waterlevel <= 0) || !Random[Puff](0,100) ) Destroy();
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}
	States
	{
	Spawn:
		XBUB ABCDEFGHIJKLMNOPQRST 1;
		Loop;
	}
}

Class SWWMSpark : Actor
{
	bool dead;
	Sector tracksector;
	int trackplane;

	Default
	{
		RenderStyle "Add";
		Radius 2;
		Height 2;
		+NOBLOCKMAP;
		+FORCEXYBILLBOARD;
		+THRUACTORS;
		+NOTELEPORT;
		+DONTSPLASH;
		+NOINTERACTION;
		Gravity 0.2;
		Scale 0.05;
		FloatBobPhase 0;
	}
	override void Tick()
	{
		prev = pos;
		if ( isFrozen() ) return;
		if ( dead )
		{
			// do nothing but follow floor movement
			if ( tracksector )
			{
				double trackz;
				if ( trackplane ) trackz = tracksector.ceilingplane.ZAtPoint(pos.xy);
				else trackz = tracksector.floorplane.ZAtPoint(pos.xy);
				if ( trackz != pos.z ) SetZ(trackz);
			}
		}
		else
		{
			if ( pos.z > floorz ) vel.z -= GetGravity();
			// linetrace-based movement (hopefully more reliable than traditional methods)
			Vector3 dir = vel;
			double spd = vel.length();
			dir /= spd;
			double dist = spd;
			FLineTraceData d;
			Vector3 newpos = pos;
			int nstep = 0;
			while ( dist > 0 )
			{
				// safeguard, too many bounces
				if ( nstep > MAXBOUNCEPERTIC )
				{
					Destroy();
					return;
				}
				double ang = atan2(dir.y,dir.x);
				double pt = asin(-dir.z);
				LineTrace(ang,dist,pt,TRF_THRUACTORS|TRF_THRUHITSCAN|TRF_ABSPOSITION,newpos.z,newpos.x,newpos.y,d);
				Vector3 hitnormal = -d.HitDir;
				if ( d.HitType == TRACE_HitFloor )
				{
					if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.top.Normal;
					else hitnormal = d.HitSector.floorplane.Normal;
				}
				else if ( d.HitType == TRACE_HitCeiling )
				{
					if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.bottom.Normal;
					else hitnormal = d.HitSector.ceilingplane.Normal;
				}
				else if ( d.HitType == TRACE_HitWall )
				{
					hitnormal = (-d.HitLine.delta.y,d.HitLine.delta.x,0).unit();
					if ( !d.LineSide ) hitnormal *= -1;
				}
				dist -= d.Distance;
				if ( d.HitType != TRACE_HitNone )
				{
					// should only happen if we bounced
					dir = d.HitDir-(2*hitnormal*(d.HitDir dot hitnormal));
					spd *= .4;
					dist *= .4;
					vel = dir*spd;
					newpos = d.HitLocation+hitnormal;
				}
				else newpos = level.Vec3Offset(newpos,dir*spd);
				if ( (spd < 1.) && ((d.HitType == TRACE_HitFloor) || (newpos.z <= floorz)) )
				{
					// lose speed and die
					if ( d.Hit3DFloor )
					{
						newpos.z = d.Hit3DFloor.top.ZAtPoint(newpos.xy);
						tracksector = d.Hit3DFloor.model;
						trackplane = 1;
					}
					else
					{
						// hacky workaround
						if ( !d.HitSector ) d.HitSector = floorsector;
						newpos.z = d.HitSector.floorplane.ZAtPoint(newpos.xy);
						tracksector = d.HitSector;
						trackplane = 0;
					}
					vel = (0,0,0);
					pitch = 0;
					roll = 0;
					dead = true;
					SetStateLabel("Death");
					break;
				}
				nstep++;
			}
			SetOrigin(newpos,true);
		}
		UpdateWaterLevel();
		if ( waterlevel > 0 )
		{
			let b = Spawn("SWWMBubble",pos);
			b.vel = vel;
			b.scale *= 0.3;
			Destroy();
			return;
		}
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}
	States
	{
	Spawn:
		BLPF A 1 Bright A_FadeOut(0.01);
		Wait;
	Death:
		BLPF A 1 Bright A_FadeOut(0.05);
		Wait;
	}
}

Class SWWMChip : Actor
{
	SWWMChip prevchip, nextchip;
	bool killme;
	double anglevel, pitchvel, rollvel;
	bool dead;
	Sector tracksector;
	int trackplane;

	Default
	{
		Radius 2;
		Height 2;
		+NOBLOCKMAP;
		+THRUACTORS;
		+NOTELEPORT;
		+DONTSPLASH;
		+INTERPOLATEANGLES;
		+ROLLSPRITE;
		+ROLLCENTER;
		+FORCEXYBILLBOARD;
		+NOINTERACTION;
		Gravity 0.35;
		Scale 0.2;
		FloatBobPhase 0;
	}
	override void PostBeginPlay()
	{
		anglevel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
		pitchvel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
		rollvel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
		frame = Random[Junk](0,7);
		scale *= Frandom[Junk](0.8,1.2);
		SWWMHandler.QueueChip(self);
	}
	override void OnDestroy()
	{
		SWWMHandler.DeQueueChip(self);
		Super.OnDestroy();
	}
	override void Tick()
	{
		prev = pos;	// for interpolation
		if ( isFrozen() ) return;
		if ( dead )
		{
			// do nothing but follow floor movement
			if ( tracksector )
			{
				double trackz;
				if ( trackplane ) trackz = tracksector.ceilingplane.ZAtPoint(pos.xy);
				else trackz = tracksector.floorplane.ZAtPoint(pos.xy);
				if ( trackz != pos.z )
				{
					SetZ(trackz);
					UpdateWaterLevel(false);
				}
			}
		}
		else
		{
			if ( (waterlevel <= 0) && (pos.z > floorz) ) vel.z -= GetGravity();
			// linetrace-based movement (hopefully more reliable than traditional methods)
			Vector3 dir = vel;
			double spd = vel.length();
			dir /= spd;
			double dist = spd;
			FLineTraceData d;
			Vector3 newpos = pos;
			int nstep = 0;
			while ( dist > 0 )
			{
				// safeguard, too many bounces
				if ( nstep > MAXBOUNCEPERTIC )
				{
					Destroy();
					return;
				}
				double ang = atan2(dir.y,dir.x);
				double pt = asin(-dir.z);
				LineTrace(ang,dist,pt,TRF_THRUACTORS|TRF_THRUHITSCAN|TRF_ABSPOSITION,newpos.z,newpos.x,newpos.y,d);
				Vector3 hitnormal = -d.HitDir;
				if ( d.HitType == TRACE_HitFloor )
				{
					if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.top.Normal;
					else hitnormal = d.HitSector.floorplane.Normal;
				}
				else if ( d.HitType == TRACE_HitCeiling )
				{
					if ( d.Hit3DFloor ) hitnormal = -d.Hit3DFloor.bottom.Normal;
					else hitnormal = d.HitSector.ceilingplane.Normal;
				}
				else if ( d.HitType == TRACE_HitWall )
				{
					hitnormal = (-d.HitLine.delta.y,d.HitLine.delta.x,0).unit();
					if ( !d.LineSide ) hitnormal *= -1;
				}
				dist -= d.Distance;
				if ( d.HitType != TRACE_HitNone )
				{
					// should only happen if we bounced
					dir = d.HitDir-(2*hitnormal*(d.HitDir dot hitnormal));
					spd *= .3;
					dist *= .3;
					vel = dir*spd;
					newpos = d.HitLocation+hitnormal;
					SetStateLabel("Bounce");
				}
				else newpos = level.Vec3Offset(newpos,dir*spd);
				if ( (spd < 1.) && ((d.HitType == TRACE_HitFloor) || (newpos.z <= floorz)) )
				{
					// lose speed and die
					if ( d.Hit3DFloor )
					{
						newpos.z = d.Hit3DFloor.top.ZAtPoint(newpos.xy);
						tracksector = d.Hit3DFloor.model;
						trackplane = 1;
					}
					else
					{
						// hacky workaround
						if ( !d.HitSector ) d.HitSector = floorsector;
						newpos.z = d.HitSector.floorplane.ZAtPoint(newpos.xy);
						tracksector = d.HitSector;
						trackplane = 0;
					}
					vel = (0,0,0);
					pitch = 0;
					roll = 0;
					dead = true;
					SetStateLabel("Death");
					break;
				}
				nstep++;
			}
			SetOrigin(newpos,true);
			UpdateWaterLevel();
		}
		if ( killme ) A_FadeOut(.01);
		if ( waterlevel > 0 )
		{
			vel *= .98;
			anglevel *= .98;
			pitchvel *= .98;
			rollvel *= .98;
		}
		if ( !CheckNoDelay() || (tics == -1) ) return;
		if ( tics > 0 ) tics--;
		while ( !tics )
		{
			if ( !SetState(CurState.NextState) )
				return;
		}
	}
	States
	{
	Spawn:
		XZW1 # 1
		{
			angle += anglevel;
			pitch += pitchvel;
			roll += rollvel;
		}
		Loop;
	Bounce:
		XZW1 # 0
		{
			anglevel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
			pitchvel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
			rollvel = FRandom[Junk](10,30)*RandomPick[Junk](-1,1);
		}
		Goto Spawn;
	Death:
		XZW2 # -1;
		Stop;
	}
}

Class SWWMNothing : Actor
{
	States
	{
	Spawn:
		TNT1 A 1;
		Stop;
	}
}

Class PoofLight : PaletteLight
{
	Default
	{
		Tag "Yellow";
		ReactionTime 5;
		Args 0,0,0,60;
	}
}
Class PoofLight2 : PaletteLight
{
	Default
	{
		Tag "Yellow";
		ReactionTime 20;
		Args 0,0,0,90;
	}
}

Class SWWMItemFog : Actor
{
	Default
	{
		RenderStyle "Add";
		+NOGRAVITY;
		+NOBLOCKMAP;
		+DONTSPLASH;
		+ROLLSPRITE;
		+ROLLCENTER;
		+NOINTERACTION;
		+FORCEXYBILLBOARD;
		FloatBobPhase 0;
	}
	States
	{
	Spawn:
		BLPF A 2 Bright NoDelay
		{
			// offset up
			SetOrigin(Vec3Offset(0,0,16),false);
			roll = FRandom[ExploS](0,360);
			scale *= FRandom[ExploS](0.9,1.1);
			scale.x *= RandomPick[ExploS](-1,1);
			scale.y *= RandomPick[ExploS](-1,1);
			int numpt = Random[ExploS](8,12);
			if ( bAMBUSH ) numpt *= 2;
			for ( int i=0; i<numpt; i++ )
			{
				Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](.3,8);
				let s = Spawn(bAMBUSH?"SWWMSmoke":"SWWMSmallSmoke",pos);
				s.vel = pvel;
				s.SetShade(Color(3,2,1)*Random[ExploS](64,85));
				s.A_SetRenderStyle(s.alpha,STYLE_AddShaded);
				s.scale *= 3.;
				s.alpha *= bAMBUSH?.4:.2;
			}
			Spawn(bAMBUSH?"PoofLight2":"PoofLight",pos);
		}
		BLPF A 1 Bright A_FadeOut(.3);
		Wait;
	}
}

Class TeleLight : PaletteLight
{
	Default
	{
		Tag "ImpactWav";
		ReactionTime 10;
		Args 0,0,0,150;
	}
}

Class SWWMTeleportSparkle : Actor
{
	Default
	{
		RenderStyle "Add";
		Scale 0.3;
		Radius 0.1;
		Height 0;
		+NOGRAVITY;
		+NOBLOCKMAP;
		+DONTSPLASH;
		+ROLLSPRITE;
		+ROLLCENTER;
		+FORCEXYBILLBOARD;
		+NOINTERACTION;
		FloatBobPhase 0;
	}
	override void Tick()
	{
		if ( isFrozen() ) return;
		A_SetScale(scale.x*specialf1);
		A_FadeOut(specialf2);
	}
	States
	{
	Spawn:
		BLPF C -1 Bright;
		Stop;
	}
}

Class SWWMTeleportFog : Actor
{
	Default
	{
		RenderStyle "Add";
		+NOGRAVITY;
		+NOBLOCKMAP;
		+DONTSPLASH;
		+NOINTERACTION;
		+FORCEXYBILLBOARD;
		Radius .1;
		Height 0.;
		FloatBobPhase 0;
	}
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		A_StartSound("misc/teleport",CHAN_VOICE);
		Spawn("TeleLight",pos);
		if ( swwm_simplefog ) SetStateLabel("Simple");
	}
	States
	{
	Spawn:
		TNT1 A 1
		{
			int numpt = int(Random[ExploS](6,12)*alpha);
			for ( int i=0; i<numpt; i++ )
			{
				Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](.3,8)*alpha;
				let s = Spawn("SWWMSmallSmoke",pos);
				s.vel = pvel;
				s.SetShade(Color(1,2,3)*int(Random[ExploS](64,85)*alpha));
				s.A_SetRenderStyle(s.alpha,STYLE_AddShaded);
				s.scale *= 3.*alpha;
				s.alpha *= alpha;
			}
			numpt = int(Random[ExploS](4,8));
			for ( int i=0; i<numpt; i++ )
			{
				double ang = FRandom[ExploS](0,360);
				double pt = FRandom[ExploS](-90,90);
				double dist = (FRandom[ExploS](5,10)+60*(1.-alpha));
				if ( LineTrace(ang,dist,pt,TRF_THRUACTORS|TRF_THRUHITSCAN) ) continue;
				Vector3 ofs = (cos(ang)*cos(pt),sin(ang)*cos(pt),-sin(pt))*dist;
				Vector3 spos = level.Vec3Offset(pos,ofs);
				let s = Spawn("SWWMTeleportSparkle",spos);
				s.scale *= FRandom[ExploS](.8,1.2);
				s.specialf1 = FRandom[ExploS](.93,.97);
				s.specialf2 = FRandom[ExploS](.02,.04);
				s.roll = FRandom[ExploS](0,360);
			}
			A_FadeOut(.07);
		}
		Wait;
	Simple:
		SPEX ABCDEFGHIJKLMNOPQRSTUVWXYZ[\] 1 Bright;
		Stop;
	}
}

Class SWWMPickupFlash : Actor
{
	Default
	{
		RenderStyle "Add";
		Args 0,3,2,1;
		+NOGRAVITY;
		+NOBLOCKMAP;
		+DONTSPLASH;
		+ROLLSPRITE;
		+ROLLCENTER;
		+NOINTERACTION;
		+FORCEXYBILLBOARD;
		FloatBobPhase 0;
	}
	override void PostBeginPlay()
	{
		Super.PostBeginPlay();
		frame = Args[0];
	}
	States
	{
	Spawn:
		BLPF # 1 Bright NoDelay
		{
			// offset up
			SetOrigin(Vec3Offset(0,0,16),false);
			roll = FRandom[ExploS](0,360);
			scale *= FRandom[ExploS](0.9,1.1);
			scale.x *= RandomPick[ExploS](-1,1);
			scale.y *= RandomPick[ExploS](-1,1);
			int numpt = Random[ExploS](8,10);
			for ( int i=0; i<numpt; i++ )
			{
				Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](.3,8);
				let s = Spawn("SWWMSmallSmoke",pos);
				s.vel = pvel;
				s.SetShade(Color(Args[1],Args[2],Args[3])*Random[ExploS](64,85));
				s.A_SetRenderStyle(s.alpha,STYLE_AddShaded);
				s.scale *= 3.;
				s.alpha *= .5;
			}
		}
		BLPF # 1 Bright A_FadeOut(.2);
		Wait;
	}
}
Class SWWMPinkPickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 1,3,1,2;
	}
}
Class SWWMCyanPickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 2,1,2,3;
	}
}
Class SWWMGreenPickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 3,1,3,1;
	}
}
Class SWWMBluePickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 4,1,1,3;
	}
}
Class SWWMPurplePickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 5,2,1,3;
	}
}
Class SWWMRedPickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 6,3,1,1;
	}
}
Class SWWMWhitePickupFlash : SWWMPickupFlash
{
	Default
	{
		Args 7,3,3,3;
	}
}

// Bullet trails from DT
Class WaterHit
{
	Sector sect;
	Vector3 hitpos;
}

Class InvisibleSplasher : Actor
{
	Default
	{
		Mass 100;
		VSpeed -2;
		Radius 2;
		Radius 2;
		+NOBLOCKMAP;	// needed to prevent infinite loops with some 3D floor water (yes, you read that right)
		FloatBobPhase 0;
	}
	States
	{
	Spawn:
		TNT1 A 2;
		Stop;
	}
}
Class SmolInvisibleSplasher : InvisibleSplasher
{
	Default
	{
		Mass 5;
	}
}

Class SWWMBulletTrail : LineTracer
{
	Array<WaterHit> WaterHitList;
	Array<Line> ShootThroughList;
	Actor ignoreme;

	static play void DoTrail( Actor target, Vector3 pos, Vector3 dir, int dist, int bubblechance, bool smoky = false )
	{
		let t = new("SWWMBulletTrail");
		t.ignoreme = target;
		t.WaterHitList.Clear();
		t.ShootThroughList.Clear();
		t.Trace(pos,level.PointInSector(pos.xy),dir,dist,0);
		for ( int i=0; i<t.ShootThroughList.Size(); i++ )
		{
			t.ShootThroughList[i].Activate(target,0,SPAC_PCross);
			if ( t.ShootThroughList[i].special == GlassBreak )	// fuck glass
				t.ShootThroughList[i].Activate(target,0,SPAC_Impact);
		}
		for ( int i=0; i<t.WaterHitList.Size(); i++ )
		{
			let b = Actor.Spawn("InvisibleSplasher",t.WaterHitList[i].hitpos);
			b.A_CheckTerrain();
		}
		for ( int i=5; i<t.Results.Distance; i+=10 )
		{
			if ( !Random[Boolet](0,bubblechance) ) continue;
			let b = Actor.Spawn(smoky?"SWWMSmallSmoke":"SWWMBubble",level.Vec3Offset(pos,dir*i));
			b.Scale *= FRandom[Boolet](.4,.6);
		}
		t.Destroy();
	}

	override ETraceStatus TraceCallback()
	{
		// liquid splashes
		if ( Results.CrossedWater )
		{
			let hl = new("WaterHit");
			hl.sect = Results.CrossedWater;
			hl.hitpos = Results.CrossedWaterPos;
			WaterHitList.Push(hl);
		}
		else if ( Results.Crossed3DWater )
		{
			let hl = new("WaterHit");
			hl.sect = Results.Crossed3DWater;
			hl.hitpos = Results.Crossed3DWaterPos;
			WaterHitList.Push(hl);
		}
		if ( Results.HitType == TRACE_HitActor )
		{
			if ( Results.HitActor == ignoreme ) return TRACE_Skip;
			if ( Results.HitActor.bSHOOTABLE ) return TRACE_Stop;
			return TRACE_Skip;
		}
		else if ( (Results.HitType == TRACE_HitWall) && (Results.Tier == TIER_Middle) )
		{
			if ( !Results.HitLine.sidedef[1] || (Results.HitLine.Flags&(Line.ML_BlockHitscan|Line.ML_BlockEverything)) )
				return TRACE_Stop;
			ShootThroughList.Push(Results.HitLine);
			return TRACE_Skip;
		}
		return TRACE_Stop;
	}
}

// Blob shadows
Class SWWMShadow : Actor
{
	Sector oldfloor;
	transient CVar sdist;

	static void Track( Actor other )
	{
		// prevent infinite recursion
		if ( other is 'SWWMShadow' ) return;
		// no shadows for overlay actors
		if ( other is 'GhostArtifactX' ) return;
		let s = SWWMShadow(Spawn("SWWMShadow",other.pos));
		s.target = other;
		s.Update(true);
	}
	private void Update( bool nointerpolate = false )
	{
		// update scale / alpha
		if ( (target is 'Inventory') && (Inventory(target).Owner || !target.bSPECIAL) || target.bKILLED || target.bINVISIBLE || (target.sprite == target.GetSpriteIndex('TNT1')) )
			alpha = 0.;
		else
		{
			alpha = 1.-min(1.,.006*abs(target.pos.z-pos.z));
			alpha *= target.alpha;
			if ( !sdist ) sdist = CVar.GetCVar('swwm_shadowdist',players[consoleplayer]);
			int sd = sdist.GetInt();
			// breaks with chasecam, but it's fine
			if ( sd > 0 ) alpha *= clamp(4.*((sd-Distance3D(players[consoleplayer].Camera))/sd),0.,1.);
			double relz = target.pos.z-pos.z;
			if ( target.bFLOATBOB ) relz += BobSin(target.FloatBobPhase)*target.FloatBobStrength;
			double bscale = (target.radius/16.)*(1.-min(1.,.003*relz));
			// hax
			if ( target is 'CompanionLamp' ) bscale *= 2.;
			A_SetScale(bscale);
		}
		// update position
		double curz = target.CurSector.NextLowestFloorAt(target.pos.x,target.pos.y,target.pos.z);
		if ( (target.pos.xy == pos.xy) && (pos.z == curz) ) return;
		SetOrigin((target.pos.x,target.pos.y,curz),true);
		if ( nointerpolate )
			prev = pos;
		else if ( oldfloor != target.CurSector )
			prev.z = pos.z;	// prevent interpolation of steep height changes
		// update slope alignment
		if ( !oldfloor || (oldfloor != target.CurSector) )
			SWWMUtility.SetToSlope(self,0);
		oldfloor = target.CurSector;
	}
	override void Tick()
	{
		if ( !target )
		{
			Destroy();
			return;
		}
		Update();
	}
	default
	{
		RenderStyle "Shaded";
		StencilColor "000000";
		DistanceCheck 'swwm_shadowdist';
		Radius .1;
		Height 0.;
		+NOBLOCKMAP;
		+NOINTERACTION;
		+DONTSPLASH;
		+NOTELEPORT;
		FloatBobPhase 0;
	}
	States
	{
	Spawn:
		XZW1 A -1;
		Stop;
	}
}