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diff --git a/src/heretic/p_switch.c b/src/heretic/p_switch.c
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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 1993-2008 Raven Software
+// Copyright(C) 2008 Simon Howard
+//
+// This program 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.
+//
+//-----------------------------------------------------------------------------
+
+#include "doomdef.h"
+#include "i_system.h"
+#include "p_local.h"
+#include "s_sound.h"
+#include "v_video.h"
+
+//==================================================================
+//
+// CHANGE THE TEXTURE OF A WALL SWITCH TO ITS OPPOSITE
+//
+//==================================================================
+switchlist_t alphSwitchList[] = {
+ {"SW1OFF", "SW1ON", 1},
+ {"SW2OFF", "SW2ON", 1},
+
+/*
+ {"SW1CTY", "SW2CTY", 1},
+ {"SW1ORGRY", "SW2ORGRY", 1},
+ {"SW1GRSTN", "SW2GRSTN", 1},
+ {"SW1SNDP", "SW2SNDP", 1},
+ {"SW1SPINE", "SW2SPINE", 1},
+ {"SW1SQPEB", "SW2SQPEB", 1},
+ {"SW1TRST1", "SW2TRST1", 1},
+ {"SW1CSTL", "SW2CSTL", 1},
+ {"SW1MOSS", "SW2MOSS", 1},
+ {"SW1SNDSQ", "SW2SNDSQ", 1},
+ {"SW1RED", "SW2RED", 1},
+ {"SW1WOOD", "SW2WOOD", 1},
+ {"SW1BROWN", "SW2BROWN", 1},
+
+ {"SW1TRST2", "SW2TRST2", 2},
+ {"SW1MSC", "SW2MSC", 2},
+ {"SW1MSC2", "SW2MSC2", 2},
+ {"SW1GRDMD", "SW2GRDMD", 2},
+*/
+
+#if 0
+ {"SW1BRCOM", "SW2BRCOM", 1},
+ {"SW1BRN1", "SW2BRN1", 1},
+ {"SW1BRN2", "SW2BRN2", 1},
+ {"SW1BRNGN", "SW2BRNGN", 1},
+ {"SW1BROWN", "SW2BROWN", 1},
+ {"SW1COMM", "SW2COMM", 1},
+ {"SW1COMP", "SW2COMP", 1},
+ {"SW1DIRT", "SW2DIRT", 1},
+ {"SW1EXIT", "SW2EXIT", 1},
+ {"SW1GRAY", "SW2GRAY", 1},
+ {"SW1GRAY1", "SW2GRAY1", 1},
+ {"SW1METAL", "SW2METAL", 1},
+ {"SW1PIPE", "SW2PIPE", 1},
+ {"SW1SLAD", "SW2SLAD", 1},
+ {"SW1STARG", "SW2STARG", 1},
+ {"SW1STON1", "SW2STON1", 1},
+ {"SW1STON2", "SW2STON2", 1},
+ {"SW1STONE", "SW2STONE", 1},
+ {"SW1STRTN", "SW2STRTN", 1},
+
+ {"SW1BLUE", "SW2BLUE", 2},
+ {"SW1CMT", "SW2CMT", 2},
+ {"SW1GARG", "SW2GARG", 2},
+ {"SW1GSTON", "SW2GSTON", 2},
+ {"SW1HOT", "SW2HOT", 2},
+ {"SW1LION", "SW2LION", 2},
+ {"SW1SATYR", "SW2SATYR", 2},
+ {"SW1SKIN", "SW2SKIN", 2},
+ {"SW1VINE", "SW2VINE", 2},
+ {"SW1WOOD", "SW2WOOD", 2},
+#endif
+ {"\0", "\0", 0}
+};
+
+int switchlist[MAXSWITCHES * 2];
+int numswitches;
+button_t buttonlist[MAXBUTTONS];
+
+/*
+===============
+=
+= P_InitSwitchList
+=
+= Only called at game initialization
+=
+===============
+*/
+
+void P_InitSwitchList(void)
+{
+ int i;
+ int index;
+ int episode;
+
+ episode = 1;
+ if (gamemode != shareware)
+ episode = 2;
+
+ for (index = 0, i = 0; i < MAXSWITCHES; i++)
+ {
+ if (!alphSwitchList[i].episode)
+ {
+ numswitches = index / 2;
+ switchlist[index] = -1;
+ break;
+ }
+
+ if (alphSwitchList[i].episode <= episode)
+ {
+ switchlist[index++] =
+ R_TextureNumForName(alphSwitchList[i].name1);
+ switchlist[index++] =
+ R_TextureNumForName(alphSwitchList[i].name2);
+ }
+ }
+}
+
+//==================================================================
+//
+// Start a button counting down till it turns off.
+//
+//==================================================================
+void P_StartButton(line_t * line, bwhere_e w, int texture, int time)
+{
+ int i;
+
+ for (i = 0; i < MAXBUTTONS; i++)
+ if (!buttonlist[i].btimer)
+ {
+ buttonlist[i].line = line;
+ buttonlist[i].where = w;
+ buttonlist[i].btexture = texture;
+ buttonlist[i].btimer = time;
+ buttonlist[i].soundorg = &line->frontsector->soundorg;
+ return;
+ }
+
+ I_Error("P_StartButton: no button slots left!");
+}
+
+//==================================================================
+//
+// Function that changes wall texture.
+// Tell it if switch is ok to use again (1=yes, it's a button).
+//
+//==================================================================
+void P_ChangeSwitchTexture(line_t * line, int useAgain)
+{
+ int texTop;
+ int texMid;
+ int texBot;
+ int i;
+ int sound;
+
+ if (!useAgain)
+ line->special = 0;
+
+ texTop = sides[line->sidenum[0]].toptexture;
+ texMid = sides[line->sidenum[0]].midtexture;
+ texBot = sides[line->sidenum[0]].bottomtexture;
+
+ sound = sfx_switch;
+ //if (line->special == 11) // EXIT SWITCH?
+ // sound = sfx_swtchx;
+
+ for (i = 0; i < numswitches * 2; i++)
+ if (switchlist[i] == texTop)
+ {
+ S_StartSound(buttonlist->soundorg, sound);
+ sides[line->sidenum[0]].toptexture = switchlist[i ^ 1];
+ if (useAgain)
+ P_StartButton(line, top, switchlist[i], BUTTONTIME);
+ return;
+ }
+ else if (switchlist[i] == texMid)
+ {
+ S_StartSound(buttonlist->soundorg, sound);
+ sides[line->sidenum[0]].midtexture = switchlist[i ^ 1];
+ if (useAgain)
+ P_StartButton(line, middle, switchlist[i], BUTTONTIME);
+ return;
+ }
+ else if (switchlist[i] == texBot)
+ {
+ S_StartSound(buttonlist->soundorg, sound);
+ sides[line->sidenum[0]].bottomtexture = switchlist[i ^ 1];
+ if (useAgain)
+ P_StartButton(line, bottom, switchlist[i], BUTTONTIME);
+ return;
+ }
+}
+
+/*
+==============================================================================
+=
+= P_UseSpecialLine
+=
+= Called when a thing uses a special line
+= Only the front sides of lines are usable
+===============================================================================
+*/
+
+boolean P_UseSpecialLine(mobj_t * thing, line_t * line)
+{
+ //
+ // Switches that other things can activate
+ //
+ if (!thing->player)
+ {
+ if (line->flags & ML_SECRET)
+ return false; // never open secret doors
+ switch (line->special)
+ {
+ case 1: // MANUAL DOOR RAISE
+ case 32: // MANUAL BLUE
+ case 33: // MANUAL RED
+ case 34: // MANUAL YELLOW
+ break;
+ default:
+ return false;
+ }
+ }
+
+ //
+ // do something
+ //
+ switch (line->special)
+ {
+ //===============================================
+ // MANUALS
+ //===============================================
+ case 1: // Vertical Door
+ case 26: // Blue Door/Locked
+ case 27: // Yellow Door /Locked
+ case 28: // Red Door /Locked
+
+ case 31: // Manual door open
+ case 32: // Blue locked door open
+ case 33: // Red locked door open
+ case 34: // Yellow locked door open
+ EV_VerticalDoor(line, thing);
+ break;
+ //===============================================
+ // SWITCHES
+ //===============================================
+ case 7: // Switch_Build_Stairs (8 pixel steps)
+ if (EV_BuildStairs(line, 8 * FRACUNIT))
+ {
+ P_ChangeSwitchTexture(line, 0);
+ }
+ break;
+ case 107: // Switch_Build_Stairs_16 (16 pixel steps)
+ if (EV_BuildStairs(line, 16 * FRACUNIT))
+ {
+ P_ChangeSwitchTexture(line, 0);
+ }
+ break;
+ case 9: // Change Donut
+ if (EV_DoDonut(line))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 11: // Exit level
+ G_ExitLevel();
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 14: // Raise Floor 32 and change texture
+ if (EV_DoPlat(line, raiseAndChange, 32))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 15: // Raise Floor 24 and change texture
+ if (EV_DoPlat(line, raiseAndChange, 24))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 18: // Raise Floor to next highest floor
+ if (EV_DoFloor(line, raiseFloorToNearest))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 20: // Raise Plat next highest floor and change texture
+ if (EV_DoPlat(line, raiseToNearestAndChange, 0))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 21: // PlatDownWaitUpStay
+ if (EV_DoPlat(line, downWaitUpStay, 0))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 23: // Lower Floor to Lowest
+ if (EV_DoFloor(line, lowerFloorToLowest))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 29: // Raise Door
+ if (EV_DoDoor(line, normal, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 41: // Lower Ceiling to Floor
+ if (EV_DoCeiling(line, lowerToFloor))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 71: // Turbo Lower Floor
+ if (EV_DoFloor(line, turboLower))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 49: // Lower Ceiling And Crush
+ if (EV_DoCeiling(line, lowerAndCrush))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 50: // Close Door
+ if (EV_DoDoor(line, close, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 51: // Secret EXIT
+ G_SecretExitLevel();
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 55: // Raise Floor Crush
+ if (EV_DoFloor(line, raiseFloorCrush))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 101: // Raise Floor
+ if (EV_DoFloor(line, raiseFloor))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 102: // Lower Floor to Surrounding floor height
+ if (EV_DoFloor(line, lowerFloor))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ case 103: // Open Door
+ if (EV_DoDoor(line, open, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 0);
+ break;
+ //===============================================
+ // BUTTONS
+ //===============================================
+ case 42: // Close Door
+ if (EV_DoDoor(line, close, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 43: // Lower Ceiling to Floor
+ if (EV_DoCeiling(line, lowerToFloor))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 45: // Lower Floor to Surrounding floor height
+ if (EV_DoFloor(line, lowerFloor))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 60: // Lower Floor to Lowest
+ if (EV_DoFloor(line, lowerFloorToLowest))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 61: // Open Door
+ if (EV_DoDoor(line, open, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 62: // PlatDownWaitUpStay
+ if (EV_DoPlat(line, downWaitUpStay, 1))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 63: // Raise Door
+ if (EV_DoDoor(line, normal, VDOORSPEED))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 64: // Raise Floor to ceiling
+ if (EV_DoFloor(line, raiseFloor))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 66: // Raise Floor 24 and change texture
+ if (EV_DoPlat(line, raiseAndChange, 24))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 67: // Raise Floor 32 and change texture
+ if (EV_DoPlat(line, raiseAndChange, 32))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 65: // Raise Floor Crush
+ if (EV_DoFloor(line, raiseFloorCrush))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 68: // Raise Plat to next highest floor and change texture
+ if (EV_DoPlat(line, raiseToNearestAndChange, 0))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 69: // Raise Floor to next highest floor
+ if (EV_DoFloor(line, raiseFloorToNearest))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ case 70: // Turbo Lower Floor
+ if (EV_DoFloor(line, turboLower))
+ P_ChangeSwitchTexture(line, 1);
+ break;
+ }
+
+ return true;
+}