//-------------------------------------------------------------------------
/*
Copyright (C) 1996, 2003 - 3D Realms Entertainment
Copyright (C) 2000, 2003 - Matt Saettler (EDuke Enhancements)
Copyright (C) 2020 - Christoph Oelckers

This file is part of Enhanced Duke Nukem 3D version 1.5 - Atomic Edition

Duke Nukem 3D is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

Original Source: 1996 - Todd Replogle
Prepared for public release: 03/21/2003 - Charlie Wiederhold, 3D Realms

EDuke enhancements integrated: 04/13/2003 - Matt Saettler

Note: EDuke source was in transition.  Changes are in-progress in the
source as it is released.

*/
//-------------------------------------------------------------------------

#include <utility>
#include "ns.h"
#include "global.h"
#include "sounds.h"
#include "automap.h"

BEGIN_DUKE_NS

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

short EGS(short whatsect, int s_x, int s_y, int s_z, short s_pn, signed char s_s, signed char s_xr, signed char s_yr, short s_a, short s_ve, int s_zv, short s_ow, signed char s_ss) 
{
	int i;
	spritetype* s;

	if (isRRRA() && s_ow < 0)
		return 0;

	i = insertsprite(whatsect, s_ss);

	if (i < 0)
		I_Error(" Too many sprites spawned.");

	hittype[i].bposx = s_x;
	hittype[i].bposy = s_y;
	hittype[i].bposz = s_z;

	s = &sprite[i];

	s->x = s_x;
	s->y = s_y;
	s->z = s_z;
	s->cstat = 0;
	s->picnum = s_pn;
	s->shade = s_s;
	s->xrepeat = s_xr;
	s->yrepeat = s_yr;
	s->pal = 0;

	s->ang = s_a;
	s->xvel = s_ve;
	s->zvel = s_zv;
	s->owner = s_ow;
	s->xoffset = 0;
	s->yoffset = 0;
	s->yvel = 0;
	s->clipdist = 0;
	s->pal = 0;
	s->lotag = 0;

	hittype[i].picnum = sprite[s_ow].picnum;

	hittype[i].lastvx = 0;
	hittype[i].lastvy = 0;

	hittype[i].timetosleep = 0;
	hittype[i].actorstayput = -1;
	hittype[i].extra = -1;
	hittype[i].owner = s_ow;
	hittype[i].cgg = 0;
	hittype[i].movflag = 0;
	hittype[i].tempang = 0;
	hittype[i].dispicnum = 0;
	hittype[i].floorz = hittype[s_ow].floorz;
	hittype[i].ceilingz = hittype[s_ow].ceilingz;
	memset(hittype[i].temp_data, 0, sizeof(hittype[i].temp_data));
	if (actorinfo[s_pn].scriptaddress)
	{
		auto sa = &ScriptCode[actorinfo[s_pn].scriptaddress];
		s->extra = sa[0];
		hittype[i].temp_data[4] = sa[1];
		hittype[i].temp_data[1] = sa[2];
		s->hitag = sa[3];
	}
	else
	{
		s->extra = 0;
		s->hitag = 0;
	}

	if (show2dsector[s->sectnum]) show2dsprite.Set(i);
	else show2dsprite.Clear(i);

	spriteext[i] = {};
	spritesmooth[i] = {};

	return(i);
}


//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

int initspriteforspawn(int j, int pn, const std::initializer_list<int> &excludes)
{
	int i;
	spritetype* sp;
	int* t;

	if (j >= 0)
	{
		i = EGS(sprite[j].sectnum, sprite[j].x, sprite[j].y, sprite[j].z, pn, 0, 0, 0, 0, 0, 0, j, 0);
		hittype[i].picnum = sprite[j].picnum;
		sp = &sprite[i];
		t = hittype[i].temp_data;
	}
	else
	{
		i = pn;
		sp = &sprite[i];
		t = hittype[i].temp_data;

		hittype[i].picnum = sp->picnum;
		hittype[i].timetosleep = 0;
		hittype[i].extra = -1;

		hittype[i].bposx = sp->x;
		hittype[i].bposy = sp->y;
		hittype[i].bposz = sp->z;

		sp->owner = hittype[i].owner = i;
		hittype[i].cgg = 0;
		hittype[i].movflag = 0;
		hittype[i].tempang = 0;
		hittype[i].dispicnum = 0;
		hittype[i].floorz = sector[sp->sectnum].floorz;
		hittype[i].ceilingz = sector[sp->sectnum].ceilingz;

		hittype[i].lastvx = 0;
		hittype[i].lastvy = 0;
		hittype[i].actorstayput = -1;

		t[0] = t[1] = t[2] = t[3] = t[4] = t[5] = 0;

		if (sp->cstat & 48)
			if (!isIn(sp->picnum, excludes) && (sp->cstat & 48))
			{
				if (sp->shade == 127) return i;
				if (wallswitchcheck(i) && (sp->cstat & 16))
				{
					if (sp->picnum != TILE_ACCESSSWITCH && sp->picnum != TILE_ACCESSSWITCH2 && sprite[i].pal)
					{
						if ((ud.multimode < 2) || (ud.multimode > 1 && ud.coop == 1))
						{
							sprite[i].xrepeat = sprite[i].yrepeat = 0;
							sprite[i].cstat = sp->lotag = sp->hitag = 0;
							return i;
						}
					}
					sp->cstat |= 257;
					if (sprite[i].pal && sp->picnum != TILE_ACCESSSWITCH && sp->picnum != TILE_ACCESSSWITCH2)
						sprite[i].pal = 0;
					return i;
				}

				if (sp->hitag)
				{
					changespritestat(i, 12);
					sp->cstat |= 257;
					sp->extra = impact_damage;
					return i;
				}
			}

		int s = sp->picnum;

		if (sp->cstat & 1) sp->cstat |= 256;

		if (actorinfo[s].scriptaddress)
		{
			sp->extra = ScriptCode[actorinfo[s].scriptaddress];
			t[4] = ScriptCode[actorinfo[s].scriptaddress+1];
			t[1] = ScriptCode[actorinfo[s].scriptaddress+2];
			int s3 = ScriptCode[actorinfo[s].scriptaddress+3];
			if (s3 && sp->hitag == 0)
				sp->hitag = s3;
		}
		else t[1] = t[4] = 0;
	}
	return i | 0x1000000;
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void spawninitdefault(int j, int i)
{
	auto sp = &sprite[i];
	auto sect = sp->sectnum;
	auto t = hittype[i].temp_data;

	if (actorinfo[sp->picnum].scriptaddress)
	{
		if (j == -1 && sp->lotag > ud.player_skill)
		{
			// make it go away...
			sp->xrepeat = sp->yrepeat = 0;
			changespritestat(i, STAT_MISC);
			return;
		}

		//  Init the size
		if (sp->xrepeat == 0 || sp->yrepeat == 0)
			sp->xrepeat = sp->yrepeat = 1;

		if (actorflag(i, SFLAG_BADGUY))
		{
			if (ud.monsters_off == 1)
			{
				sp->xrepeat = sp->yrepeat = 0;
				changespritestat(i, STAT_MISC);
				return;
			}

			makeitfall(i);

			if (actorflag(i, SFLAG_BADGUYSTAYPUT))
				hittype[i].actorstayput = sp->sectnum;

			if (!isRR() || actorflag(i, SFLAG_KILLCOUNT))	// Duke is just like Doom - Bad guys always count as kill.
				ps[myconnectindex].max_actors_killed++;

			sp->clipdist = 80;
			if (j >= 0)
			{
				if (sprite[j].picnum == RESPAWN)
					hittype[i].tempang = sprite[i].pal = sprite[j].pal;
				changespritestat(i, STAT_ACTOR);
			}
			else changespritestat(i, STAT_ZOMBIEACTOR);
		}
		else
		{
			sp->clipdist = 40;
			sp->owner = i;
			changespritestat(i, STAT_ACTOR);
		}

		hittype[i].timetosleep = 0;

		if (j >= 0)
			sp->ang = sprite[j].ang;
	}
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void spawntransporter(int j, int i, bool beam)
{
	if (j == -1) return;
	auto sp = &sprite[i];
	if (beam)
	{
		sp->xrepeat = 31;
		sp->yrepeat = 1;
		sp->z = sector[sprite[j].sectnum].floorz - (40 << 8);
	}
	else
	{
		if (sprite[j].statnum == 4)
		{
			sp->xrepeat = 8;
			sp->yrepeat = 8;
		}
		else
		{
			sp->xrepeat = 48;
			sp->yrepeat = 64;
			if (sprite[j].statnum == 10 || badguy(&sprite[j]))
				sp->z -= (32 << 8);
		}
	}

	sp->shade = -127;
	sp->cstat = 128 | 2;
	sp->ang = sprite[j].ang;

	sp->xvel = 128;
	changespritestat(i, STAT_MISC);
	ssp(i, CLIPMASK0);
	setsprite(i, sp->x, sp->y, sp->z);
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

int spawnbloodpoolpart1(int j, int i)
{
	auto sp = &sprite[i];
	short s1 = sp->sectnum;

	updatesector(sp->x + 108, sp->y + 108, &s1);
	if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
	{
		updatesector(sp->x - 108, sp->y - 108, &s1);
		if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
		{
			updatesector(sp->x + 108, sp->y - 108, &s1);
			if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
			{
				updatesector(sp->x - 108, sp->y + 108, &s1);
				if (s1 >= 0 && sector[s1].floorz != sector[sp->sectnum].floorz)
				{
					sp->xrepeat = sp->yrepeat = 0; changespritestat(i, STAT_MISC); return true;
				}
			}
			else { sp->xrepeat = sp->yrepeat = 0; changespritestat(i, STAT_MISC); return true; }
		}
		else { sp->xrepeat = sp->yrepeat = 0; changespritestat(i, STAT_MISC); return true; }
	}
	else { sp->xrepeat = sp->yrepeat = 0; changespritestat(i, STAT_MISC); return true; }

	if (sector[sp->sectnum].lotag == 1)
	{
		changespritestat(i, STAT_MISC);
		return true;
	}
	return false;
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void initfootprint(int j, int i)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	if (j >= 0)
	{
		short s1;
		s1 = sp->sectnum;

		updatesector(sp->x + 84, sp->y + 84, &s1);
		if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
		{
			updatesector(sp->x - 84, sp->y - 84, &s1);
			if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
			{
				updatesector(sp->x + 84, sp->y - 84, &s1);
				if (s1 >= 0 && sector[s1].floorz == sector[sp->sectnum].floorz)
				{
					updatesector(sp->x - 84, sp->y + 84, &s1);
					if (s1 >= 0 && sector[s1].floorz != sector[sp->sectnum].floorz)
					{
						sp->xrepeat = sp->yrepeat = 0; changespritestat(i, STAT_MISC); return;
					}
				}
				else { sp->xrepeat = sp->yrepeat = 0; return; }
			}
			else { sp->xrepeat = sp->yrepeat = 0; return; }
		}
		else { sp->xrepeat = sp->yrepeat = 0; return; }

		sp->cstat = 32 + ((ps[sprite[j].yvel].footprintcount & 1) << 2);
		sp->ang = sprite[j].ang;
	}

	sp->z = sector[sect].floorz;
	if (sector[sect].lotag != 1 && sector[sect].lotag != 2)
		sp->xrepeat = sp->yrepeat = 32;

	insertspriteq(i);
	changespritestat(i, STAT_MISC);
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void initshell(int j, int i, bool isshell)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	auto t = hittype[i].temp_data;
	if (j >= 0)
	{
		short snum, a;

		if (sprite[j].picnum == TILE_APLAYER)
		{
			snum = sprite[j].yvel;
			a = ps[snum].getang() - (krand() & 63) + 8;  //Fine tune

			t[0] = krand() & 1;
			sp->z = (3 << 8) + ps[snum].pyoff + ps[snum].posz - (ps[snum].getq16horizsum() >> 12) + (!isshell ? (3 << 8) : 0);
			sp->zvel = -(krand() & 255);
		}
		else
		{
			a = sp->ang;
			sp->z = sprite[j].z - PHEIGHT + (3 << 8);
		}

		sp->x = sprite[j].x + (sintable[(a + 512) & 2047] >> 7);
		sp->y = sprite[j].y + (sintable[a & 2047] >> 7);

		sp->shade = -8;

		if (isNamWW2GI())
		{
			// to the right, with feeling
			sp->ang = a + 512;
			sp->xvel = 30;
		}
		else
		{
			sp->ang = a - 512;
			sp->xvel = 20;
		}

		sp->xrepeat = sp->yrepeat = isRR() && isshell? 2 : 4;

		changespritestat(i, STAT_MISC);
	}
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void initcrane(int j, int i, int CRANEPOLE)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	auto t = hittype[i].temp_data;
	sp->cstat |= 64 | 257;

	sp->picnum += 2;
	sp->z = sector[sect].ceilingz + (48 << 8);
	t[4] = tempwallptr;

	msx[tempwallptr] = sp->x;
	msy[tempwallptr] = sp->y;
	msx[tempwallptr + 2] = sp->z;

	int s = headspritestat[0];
	while (s >= 0)
	{
		if (sprite[s].picnum == CRANEPOLE && sp->hitag == (sprite[s].hitag))
		{
			msy[tempwallptr + 2] = s;

			t[1] = sprite[s].sectnum;

			sprite[s].xrepeat = 48;
			sprite[s].yrepeat = 128;

			msx[tempwallptr + 1] = sprite[s].x;
			msy[tempwallptr + 1] = sprite[s].y;

			sprite[s].x = sp->x;
			sprite[s].y = sp->y;
			sprite[s].z = sp->z;
			sprite[s].shade = sp->shade;

			setsprite(s, sprite[s].x, sprite[s].y, sprite[s].z);
			break;
		}
		s = nextspritestat[s];
	}

	tempwallptr += 3;
	sp->owner = -1;
	sp->extra = 8;
	changespritestat(i, 6);
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void initwaterdrip(int j, int i)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	auto t = hittype[i].temp_data;
	if (j >= 0 && (sprite[j].statnum == 10 || sprite[j].statnum == 1))
	{
		sp->shade = 32;
		if (sprite[j].pal != 1)
		{
			sp->pal = 2;
			sp->z -= (18 << 8);
		}
		else sp->z -= (13 << 8);
		sp->ang = getangle(ps[connecthead].posx - sp->x, ps[connecthead].posy - sp->y);
		sp->xvel = 48 - (krand() & 31);
		ssp(i, CLIPMASK0);
	}
	else if (j == -1)
	{
		sp->z += (4 << 8);
		t[0] = sp->z;
		if (!isRR()) t[1] = krand() & 127;
	}
	sp->xrepeat = 24;
	sp->yrepeat = 24;
	changespritestat(i, 6);
}


//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

int initreactor(int j, int i, bool isrecon)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	auto t = hittype[i].temp_data;
	if (isrecon)
	{
		if (sp->lotag > ud.player_skill)
		{
			sp->xrepeat = sp->yrepeat = 0;
			changespritestat(i, STAT_MISC);
			return true;
		}
		if (!isRR() || actorflag(i, SFLAG_KILLCOUNT))	// Duke is just like Doom - Bad guys always count as kill.
			ps[myconnectindex].max_actors_killed++;
		hittype[i].temp_data[5] = 0;
		if (ud.monsters_off == 1)
		{
			sp->xrepeat = sp->yrepeat = 0;
			changespritestat(i, STAT_MISC);
			return false;
		}
		sp->extra = 130;
	}
	else
		sp->extra = impact_damage;

	sp->cstat |= 257; // Make it hitable

	if (ud.multimode < 2 && sp->pal != 0)
	{
		sp->xrepeat = sp->yrepeat = 0;
		changespritestat(i, STAT_MISC);
		return false;
	}
	sp->pal = 0;
	sp->shade = -17;

	changespritestat(i, 2);
	return false;
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void spawneffector(int i)
{
	auto sp = &sprite[i];
	int sect = sp->sectnum;
	auto t = hittype[i].temp_data;
	int j, startwall, endwall, x, y, d, s, clostest;

	sp->yvel = sector[sect].extra;
	sp->cstat |= 32768;
	sp->xrepeat = sp->yrepeat = 0;

	switch (sp->lotag)
	{
		case 28:
			if (!isRR()) t[5] = 65;// Delay for lightning
			break;
		case 7: // Transporters!!!!
		case 23:// XPTR END
			if (sp->lotag != 23)
			{
				for (j = 0; j < MAXSPRITES; j++)
					if (sprite[j].statnum < MAXSTATUS && sprite[j].picnum == SECTOREFFECTOR && (sprite[j].lotag == 7 || sprite[j].lotag == 23) && i != j && sprite[j].hitag == sp->hitag)
					{
						sp->owner = j;
						break;
					}
			}
			else sp->owner = i;

			t[4] = sector[sect].floorz == sp->z;
			sp->cstat = 0;
			changespritestat(i, 9);
			return;
		case 1:
			sp->owner = -1;
			t[0] = 1;
			break;
		case 18:

			if (sp->ang == 512)
			{
				t[1] = sector[sect].ceilingz;
				if (sp->pal)
					sector[sect].ceilingz = sp->z;
			}
			else
			{
				t[1] = sector[sect].floorz;
				if (sp->pal)
					sector[sect].floorz = sp->z;
			}

			sp->hitag <<= 2;
			break;

		case 19:
			sp->owner = -1;
			break;
		case 25: // Pistons
			if (!isRR())
			{
				t[3] = sector[sect].ceilingz;
				t[4] = 1;
			}
			else
				t[4] = sector[sect].ceilingz;

			sector[sect].ceilingz = sp->z;
			setinterpolation(&sector[sect].ceilingz);
			break;
		case 35:
			sector[sect].ceilingz = sp->z;
			break;
		case 27:
			if (ud.recstat == 1)
			{
				sp->xrepeat = sp->yrepeat = 64;
				sp->cstat &= 32767;
			}
			break;
		case 47:
		case 48:
			if (!isRRRA()) break;
		case 12:

			t[1] = sector[sect].floorshade;
			t[2] = sector[sect].ceilingshade;
			break;

		case 13:

			t[0] = sector[sect].ceilingz;
			t[1] = sector[sect].floorz;

			if (abs(t[0] - sp->z) < abs(t[1] - sp->z))
				sp->owner = 1;
			else sp->owner = 0;

			if (sp->ang == 512)
			{
				if (sp->owner)
					sector[sect].ceilingz = sp->z;
				else
					sector[sect].floorz = sp->z;
			}
			else
				sector[sect].ceilingz = sector[sect].floorz = sp->z;

			if (sector[sect].ceilingstat & 1)
			{
				sector[sect].ceilingstat ^= 1;
				t[3] = 1;

				if (!sp->owner && sp->ang == 512)
				{
					sector[sect].ceilingstat ^= 1;
					t[3] = 0;
				}

				sector[sect].ceilingshade =
					sector[sect].floorshade;

				if (sp->ang == 512)
				{
					startwall = sector[sect].wallptr;
					endwall = startwall + sector[sect].wallnum;
					for (j = startwall; j < endwall; j++)
					{
						int x = wall[j].nextsector;
						if (x >= 0)
							if (!(sector[x].ceilingstat & 1))
							{
								sector[sect].ceilingpicnum =
									sector[x].ceilingpicnum;
								sector[sect].ceilingshade =
									sector[x].ceilingshade;
								break; //Leave earily
							}
					}
				}
			}

			break;

		case 17:

			t[2] = sector[sect].floorz; //Stopping loc

			j = nextsectorneighborz(sect, sector[sect].floorz, -1, -1);
			t[3] = sector[j].ceilingz;

			j = nextsectorneighborz(sect, sector[sect].ceilingz, 1, 1);
			t[4] = sector[j].floorz;

			if (numplayers < 2)
			{
				setinterpolation(&sector[sect].floorz);
				setinterpolation(&sector[sect].ceilingz);
			}

			break;

		case 24:
			sp->yvel <<= 1;
		case 36:
			break;

		case 20:
		{
			int q;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			//find the two most clostest wall x's and y's
			q = 0x7fffffff;

			for (s = startwall; s < endwall; s++)
			{
				x = wall[s].x;
				y = wall[s].y;

				d = FindDistance2D(sp->x - x, sp->y - y);
				if (d < q)
				{
					q = d;
					clostest = s;
				}
			}

			t[1] = clostest;

			q = 0x7fffffff;

			for (s = startwall; s < endwall; s++)
			{
				x = wall[s].x;
				y = wall[s].y;

				d = FindDistance2D(sp->x - x, sp->y - y);
				if (d < q && s != t[1])
				{
					q = d;
					clostest = s;
				}
			}

			t[2] = clostest;
			break;
		}


		case 3:

			t[3] = sector[sect].floorshade;

			sector[sect].floorshade = sp->shade;
			sector[sect].ceilingshade = sp->shade;

			sp->owner = sector[sect].ceilingpal << 8;
			sp->owner |= sector[sect].floorpal;

			//fix all the walls;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			for (s = startwall; s < endwall; s++)
			{
				if (!(wall[s].hitag & 1))
					wall[s].shade = sp->shade;
				if ((wall[s].cstat & 2) && wall[s].nextwall >= 0)
					wall[wall[s].nextwall].shade = sp->shade;
			}
			break;

		case 31:
			t[1] = sector[sect].floorz;
			//	t[2] = sp->hitag;
			if (sp->ang != 1536) sector[sect].floorz = sp->z;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			for (s = startwall; s < endwall; s++)
				if (wall[s].hitag == 0) wall[s].hitag = 9999;

			setinterpolation(&sector[sect].floorz);

			break;
		case 32:
			t[1] = sector[sect].ceilingz;
			t[2] = sp->hitag;
			if (sp->ang != 1536) sector[sect].ceilingz = sp->z;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			for (s = startwall; s < endwall; s++)
				if (wall[s].hitag == 0) wall[s].hitag = 9999;

			setinterpolation(&sector[sect].ceilingz);

			break;

		case 4: //Flashing lights

			t[2] = sector[sect].floorshade;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			sp->owner = sector[sect].ceilingpal << 8;
			sp->owner |= sector[sect].floorpal;

			for (s = startwall; s < endwall; s++)
				if (wall[s].shade > t[3])
					t[3] = wall[s].shade;

			break;

		case 9:
			if (sector[sect].lotag &&
				labs(sector[sect].ceilingz - sp->z) > 1024)
				sector[sect].lotag |= 32768; //If its open
		case 8:
			//First, get the ceiling-floor shade

			t[0] = sector[sect].floorshade;
			t[1] = sector[sect].ceilingshade;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			for (s = startwall; s < endwall; s++)
				if (wall[s].shade > t[2])
					t[2] = wall[s].shade;

			t[3] = 1; //Take Out;

			break;

		case 88:
			//First, get the ceiling-floor shade
			if (!isRR()) break;

			t[0] = sector[sect].floorshade;
			t[1] = sector[sect].ceilingshade;

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			for (s = startwall; s < endwall; s++)
				if (wall[s].shade > t[2])
					t[2] = wall[s].shade;

			t[3] = 1; //Take Out;
			break;

		case 11://Pivitor rotater
			if (sp->ang > 1024) t[3] = 2;
			else t[3] = -2;
		case 0:
		case 2://Earthquakemakers
		case 5://Boss Creature
		case 6://Subway
		case 14://Caboos
		case 15://Subwaytype sliding door
		case 16://That rotating blocker reactor thing
		case 26://ESCELATOR
		case 30://No rotational subways

			if (sp->lotag == 0)
			{
				if (sector[sect].lotag == 30)
				{
					if (sp->pal) sprite[i].clipdist = 1;
					else sprite[i].clipdist = 0;
					t[3] = sector[sect].floorz;
					sector[sect].hitag = i;
				}

				for (j = 0; j < MAXSPRITES; j++)
				{
					if (sprite[j].statnum < MAXSTATUS)
						if (sprite[j].picnum == SECTOREFFECTOR &&
							sprite[j].lotag == 1 &&
							sprite[j].hitag == sp->hitag)
						{
							if (sp->ang == 512)
							{
								sp->x = sprite[j].x;
								sp->y = sprite[j].y;
							}
							break;
						}
				}
				if (j == MAXSPRITES)
				{
					I_Error("Found lonely Sector Effector (lotag 0) at (%d,%d)\n", sp->x, sp->y);
				}
				sp->owner = j;
			}

			startwall = sector[sect].wallptr;
			endwall = startwall + sector[sect].wallnum;

			t[1] = tempwallptr;
			for (s = startwall; s < endwall; s++)
			{
				msx[tempwallptr] = wall[s].x - sp->x;
				msy[tempwallptr] = wall[s].y - sp->y;
				tempwallptr++;
				if (tempwallptr > 2047)
				{
					I_Error("Too many moving sectors at (%d,%d).\n", wall[s].x, wall[s].y);
				}
			}
			if (sp->lotag == 30 || sp->lotag == 6 || sp->lotag == 14 || sp->lotag == 5)
			{

				startwall = sector[sect].wallptr;
				endwall = startwall + sector[sect].wallnum;

				if (sector[sect].hitag == -1)
					sp->extra = 0;
				else sp->extra = 1;

				sector[sect].hitag = i;

				j = 0;

				for (s = startwall; s < endwall; s++)
				{
					if (wall[s].nextsector >= 0 &&
						sector[wall[s].nextsector].hitag == 0 &&
						(sector[wall[s].nextsector].lotag < 3 || (isRRRA() && sector[wall[s].nextsector].lotag == 160)))
					{
						s = wall[s].nextsector;
						j = 1;
						break;
					}
				}

				if (j == 0)
				{
					I_Error("Subway found no zero'd sectors with locators\nat (%d,%d).\n", sp->x, sp->y);
				}

				sp->owner = -1;
				t[0] = s;

				if (sp->lotag != 30)
					t[3] = sp->hitag;
			}

			else if (sp->lotag == 16)
				t[3] = sector[sect].ceilingz;

			else if (sp->lotag == 26)
			{
				t[3] = sp->x;
				t[4] = sp->y;
				if (sp->shade == sector[sect].floorshade) //UP
					sp->zvel = -256;
				else
					sp->zvel = 256;

				sp->shade = 0;
			}
			else if (sp->lotag == 2)
			{
				t[5] = sector[sp->sectnum].floorheinum;
				sector[sp->sectnum].floorheinum = 0;
			}
	}

	switch (sp->lotag)
	{
		case 6:
		case 14:
			j = callsound(sect, i);
			if (j == -1)
			{
				if (!isRR()) j = SUBWAY;	// Duke
				else if (sector[sp->sectnum].floorpal == 7) j = 456;
				else j = 75;
			}
			hittype[i].lastvx = j;
		case 30:
			if (numplayers > 1) break;
		case 0:
		case 1:
		case 5:
		case 11:
		case 15:
		case 16:
		case 26:
			setsectinterpolate(i);
			break;
	}

	if ((!isRR() && sprite[i].lotag >= 40 && sprite[i].lotag <= 45) ||
		(isRRRA() && sprite[i].lotag >= 150 && sprite[i].lotag <= 155))
		changespritestat(i, STAT_RAROR);
	else
		changespritestat(i, STAT_EFFECTOR);
}


//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void vglass(int x, int y, int a, int wn, int n)
{
	int z, zincs;
	int sect;

	sect = wall[wn].nextsector;
	if (sect == -1) return;
	zincs = (sector[sect].floorz - sector[sect].ceilingz) / n;

	for (z = sector[sect].ceilingz; z < sector[sect].floorz; z += zincs)
		EGS(sect, x, y, z - (krand() & 8191), TILE_GLASSPIECES + (z & (krand() % 3)), -32, 36, 36, a + 128 - (krand() & 255), 16 + (krand() & 31), 0, -1, 5);
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void lotsofglass(int i, int wallnum, int n)
{
	int j, xv, yv, z, x1, y1, a;
	short sect;
	auto sp = &sprite[i];

	sect = -1;

	if (wallnum < 0)
	{
		for (j = n - 1; j >= 0; j--)
		{
			a = sp->ang - 256 + (krand() & 511) + 1024;
			EGS(sp->sectnum, sp->x, sp->y, sp->z, TILE_GLASSPIECES + (j % 3), -32, 36, 36, a, 32 + (krand() & 63), 1024 - (krand() & 1023), i, 5);
		}
		return;
	}

	j = n + 1;

	x1 = wall[wallnum].x;
	y1 = wall[wallnum].y;

	xv = wall[wall[wallnum].point2].x - x1;
	yv = wall[wall[wallnum].point2].y - y1;

	x1 -= sgn(yv);
	y1 += sgn(xv);

	xv /= j;
	yv /= j;

	for (j = n; j > 0; j--)
	{
		x1 += xv;
		y1 += yv;

		updatesector(x1, y1, &sect);
		if (sect >= 0)
		{
			z = sector[sect].floorz - (krand() & (abs(sector[sect].ceilingz - sector[sect].floorz)));
			if (z < -(32 << 8) || z >(32 << 8))
				z = sp->z - (32 << 8) + (krand() & ((64 << 8) - 1));
			a = sp->ang - 1024;
			EGS(sp->sectnum, x1, y1, z, TILE_GLASSPIECES + (j % 3), -32, 36, 36, a, 32 + (krand() & 63), -(krand() & 1023), i, 5);
		}
	}
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void spriteglass(int i, int n)
{
	int j, k, a, z;
	auto sp = &sprite[i];

	for (j = n; j > 0; j--)
	{
		a = krand() & 2047;
		z = sp->z - ((krand() & 16) << 8);
		k = EGS(sp->sectnum, sp->x, sp->y, z, TILE_GLASSPIECES + (j % 3), krand() & 15, 36, 36, a, 32 + (krand() & 63), -512 - (krand() & 2047), i, 5);
		sprite[k].pal = sprite[i].pal;
	}
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void ceilingglass(int i, int sectnum, int n)
{
	int j, xv, yv, z, x1, y1;
	int a, s, startwall, endwall;
	auto sp = &sprite[i];

	startwall = sector[sectnum].wallptr;
	endwall = startwall + sector[sectnum].wallnum;

	for (s = startwall; s < (endwall - 1); s++)
	{
		x1 = wall[s].x;
		y1 = wall[s].y;

		xv = (wall[s + 1].x - x1) / (n + 1);
		yv = (wall[s + 1].y - y1) / (n + 1);

		for (j = n; j > 0; j--)
		{
			x1 += xv;
			y1 += yv;
			a = krand() & 2047;
			z = sector[sectnum].ceilingz + ((krand() & 15) << 8);
			EGS(sectnum, x1, y1, z, TILE_GLASSPIECES + (j % 3), -32, 36, 36, a, (krand() & 31), 0, i, 5);
		}
	}
}

//---------------------------------------------------------------------------
//
// 
//
//---------------------------------------------------------------------------

void lotsofcolourglass(int i, int wallnum, int n)
{
	int j, xv, yv, z, x1, y1;
	short sect = -1;
	int a, k;
	auto sp = &sprite[i];

	if (wallnum < 0)
	{
		for (j = n - 1; j >= 0; j--)
		{
			a = krand() & 2047;
			k = EGS(sp->sectnum, sp->x, sp->y, sp->z - (krand() & (63 << 8)), TILE_GLASSPIECES + (j % 3), -32, 36, 36, a, 32 + (krand() & 63), 1024 - (krand() & 2047), i, 5);
			sprite[k].pal = krand() & 15;
		}
		return;
	}

	j = n + 1;
	x1 = wall[wallnum].x;
	y1 = wall[wallnum].y;

	xv = (wall[wall[wallnum].point2].x - wall[wallnum].x) / j;
	yv = (wall[wall[wallnum].point2].y - wall[wallnum].y) / j;

	for (j = n; j > 0; j--)
	{
		x1 += xv;
		y1 += yv;

		updatesector(x1, y1, &sect);
		z = sector[sect].floorz - (krand() & (abs(sector[sect].ceilingz - sector[sect].floorz)));
		if (z < -(32 << 8) || z >(32 << 8))
			z = sp->z - (32 << 8) + (krand() & ((64 << 8) - 1));
		a = sp->ang - 1024;
		k = EGS(sp->sectnum, x1, y1, z, TILE_GLASSPIECES + (j % 3), -32, 36, 36, a, 32 + (krand() & 63), -(krand() & 2047), i, 5);
		sprite[k].pal = krand() & 7;
	}
}



END_DUKE_NS