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diff --git a/src/hexen/p_ceilng.c b/src/hexen/p_ceilng.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 "h2def.h"
+#include "p_local.h"
+
+//==================================================================
+//==================================================================
+//
+// CEILINGS
+//
+//==================================================================
+//==================================================================
+
+ceiling_t *activeceilings[MAXCEILINGS];
+
+//==================================================================
+//
+// T_MoveCeiling
+//
+//==================================================================
+void T_MoveCeiling(ceiling_t * ceiling)
+{
+ result_e res;
+
+ switch (ceiling->direction)
+ {
+// case 0: // IN STASIS
+// break;
+ case 1: // UP
+ res = T_MovePlane(ceiling->sector, ceiling->speed,
+ ceiling->topheight, false, 1,
+ ceiling->direction);
+ if (res == RES_PASTDEST)
+ {
+ SN_StopSequence((mobj_t *) & ceiling->sector->soundorg);
+ switch (ceiling->type)
+ {
+ case CLEV_CRUSHANDRAISE:
+ ceiling->direction = -1;
+ ceiling->speed = ceiling->speed * 2;
+ break;
+ default:
+ P_RemoveActiveCeiling(ceiling);
+ break;
+ }
+ }
+ break;
+ case -1: // DOWN
+ res = T_MovePlane(ceiling->sector, ceiling->speed,
+ ceiling->bottomheight, ceiling->crush, 1,
+ ceiling->direction);
+ if (res == RES_PASTDEST)
+ {
+ SN_StopSequence((mobj_t *) & ceiling->sector->soundorg);
+ switch (ceiling->type)
+ {
+ case CLEV_CRUSHANDRAISE:
+ case CLEV_CRUSHRAISEANDSTAY:
+ ceiling->direction = 1;
+ ceiling->speed = ceiling->speed / 2;
+ break;
+ default:
+ P_RemoveActiveCeiling(ceiling);
+ break;
+ }
+ }
+ else if (res == RES_CRUSHED)
+ {
+ switch (ceiling->type)
+ {
+ case CLEV_CRUSHANDRAISE:
+ case CLEV_LOWERANDCRUSH:
+ case CLEV_CRUSHRAISEANDSTAY:
+ //ceiling->speed = ceiling->speed/4;
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ }
+}
+
+//==================================================================
+//
+// EV_DoCeiling
+// Move a ceiling up/down and all around!
+//
+//==================================================================
+int EV_DoCeiling(line_t * line, byte * arg, ceiling_e type)
+{
+ int secnum, rtn;
+ sector_t *sec;
+ ceiling_t *ceiling;
+
+ secnum = -1;
+ rtn = 0;
+
+/* Old Ceiling stasis code
+ //
+ // Reactivate in-stasis ceilings...for certain types.
+ //
+ switch(type)
+ {
+ case CLEV_CRUSHANDRAISE:
+ P_ActivateInStasisCeiling(line);
+ default:
+ break;
+ }
+*/
+ while ((secnum = P_FindSectorFromTag(arg[0], secnum)) >= 0)
+ {
+ sec = &sectors[secnum];
+ if (sec->specialdata)
+ continue;
+
+ //
+ // new door thinker
+ //
+ rtn = 1;
+ ceiling = Z_Malloc(sizeof(*ceiling), PU_LEVSPEC, 0);
+ P_AddThinker(&ceiling->thinker);
+ sec->specialdata = ceiling;
+ ceiling->thinker.function = T_MoveCeiling;
+ ceiling->sector = sec;
+ ceiling->crush = 0;
+ ceiling->speed = arg[1] * (FRACUNIT / 8);
+ switch (type)
+ {
+ case CLEV_CRUSHRAISEANDSTAY:
+ ceiling->crush = arg[2]; // arg[2] = crushing value
+ ceiling->topheight = sec->ceilingheight;
+ ceiling->bottomheight = sec->floorheight + (8 * FRACUNIT);
+ ceiling->direction = -1;
+ break;
+ case CLEV_CRUSHANDRAISE:
+ ceiling->topheight = sec->ceilingheight;
+ case CLEV_LOWERANDCRUSH:
+ ceiling->crush = arg[2]; // arg[2] = crushing value
+ case CLEV_LOWERTOFLOOR:
+ ceiling->bottomheight = sec->floorheight;
+ if (type != CLEV_LOWERTOFLOOR)
+ {
+ ceiling->bottomheight += 8 * FRACUNIT;
+ }
+ ceiling->direction = -1;
+ break;
+ case CLEV_RAISETOHIGHEST:
+ ceiling->topheight = P_FindHighestCeilingSurrounding(sec);
+ ceiling->direction = 1;
+ break;
+ case CLEV_LOWERBYVALUE:
+ ceiling->bottomheight =
+ sec->ceilingheight - arg[2] * FRACUNIT;
+ ceiling->direction = -1;
+ break;
+ case CLEV_RAISEBYVALUE:
+ ceiling->topheight = sec->ceilingheight + arg[2] * FRACUNIT;
+ ceiling->direction = 1;
+ break;
+ case CLEV_MOVETOVALUETIMES8:
+ {
+ int destHeight = arg[2] * FRACUNIT * 8;
+
+ if (arg[3])
+ {
+ destHeight = -destHeight;
+ }
+ if (sec->ceilingheight <= destHeight)
+ {
+ ceiling->direction = 1;
+ ceiling->topheight = destHeight;
+ if (sec->ceilingheight == destHeight)
+ {
+ rtn = 0;
+ }
+ }
+ else if (sec->ceilingheight > destHeight)
+ {
+ ceiling->direction = -1;
+ ceiling->bottomheight = destHeight;
+ }
+ break;
+ }
+ default:
+ rtn = 0;
+ break;
+ }
+ ceiling->tag = sec->tag;
+ ceiling->type = type;
+ P_AddActiveCeiling(ceiling);
+ if (rtn)
+ {
+ SN_StartSequence((mobj_t *) & ceiling->sector->soundorg,
+ SEQ_PLATFORM + ceiling->sector->seqType);
+ }
+ }
+ return rtn;
+}
+
+//==================================================================
+//
+// Add an active ceiling
+//
+//==================================================================
+void P_AddActiveCeiling(ceiling_t * c)
+{
+ int i;
+ for (i = 0; i < MAXCEILINGS; i++)
+ if (activeceilings[i] == NULL)
+ {
+ activeceilings[i] = c;
+ return;
+ }
+}
+
+//==================================================================
+//
+// Remove a ceiling's thinker
+//
+//==================================================================
+void P_RemoveActiveCeiling(ceiling_t * c)
+{
+ int i;
+
+ for (i = 0; i < MAXCEILINGS; i++)
+ if (activeceilings[i] == c)
+ {
+ activeceilings[i]->sector->specialdata = NULL;
+ P_RemoveThinker(&activeceilings[i]->thinker);
+ P_TagFinished(activeceilings[i]->sector->tag);
+ activeceilings[i] = NULL;
+ break;
+ }
+}
+
+#if 0
+//==================================================================
+//
+// Restart a ceiling that's in-stasis
+//
+//==================================================================
+void P_ActivateInStasisCeiling(line_t * line)
+{
+ int i;
+
+ for (i = 0; i < MAXCEILINGS; i++)
+ if (activeceilings[i] && (activeceilings[i]->tag == line->arg1) &&
+ (activeceilings[i]->direction == 0))
+ {
+ activeceilings[i]->direction = activeceilings[i]->olddirection;
+ activeceilings[i]->thinker.function = T_MoveCeiling;
+ SN_StartSequence((mobj_t *) & activeceilings[i]->sector->soundorg,
+ SEQ_PLATFORM +
+ activeceilings[i]->sector->seqType);
+ }
+}
+#endif
+
+//==================================================================
+//
+// EV_CeilingCrushStop
+// Stop a ceiling from crushing!
+//
+//==================================================================
+
+int EV_CeilingCrushStop(line_t * line, byte * args)
+{
+ int i;
+ int rtn;
+
+ rtn = 0;
+ for (i = 0; i < MAXCEILINGS; i++)
+ {
+ if (activeceilings[i] && activeceilings[i]->tag == args[0])
+ {
+ rtn = 1;
+ SN_StopSequence((mobj_t *) & activeceilings[i]->sector->soundorg);
+ activeceilings[i]->sector->specialdata = NULL;
+ P_RemoveThinker(&activeceilings[i]->thinker);
+ P_TagFinished(activeceilings[i]->sector->tag);
+ activeceilings[i] = NULL;
+ break;
+ }
+ }
+ return rtn;
+}
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