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-rw-r--r--src/heretic/p_floor.c468
1 files changed, 468 insertions, 0 deletions
diff --git a/src/heretic/p_floor.c b/src/heretic/p_floor.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 "p_local.h"
+#include "s_sound.h"
+#include "v_video.h"
+
+//==================================================================
+//==================================================================
+//
+// FLOORS
+//
+//==================================================================
+//==================================================================
+
+
+
+//==================================================================
+//
+// Move a plane (floor or ceiling) and check for crushing
+//
+//==================================================================
+result_e T_MovePlane(sector_t * sector, fixed_t speed,
+ fixed_t dest, boolean crush, int floorOrCeiling,
+ int direction)
+{
+ boolean flag;
+ fixed_t lastpos;
+
+ switch (floorOrCeiling)
+ {
+ case 0: // FLOOR
+ switch (direction)
+ {
+ case -1: // DOWN
+ if (sector->floorheight - speed < dest)
+ {
+ lastpos = sector->floorheight;
+ sector->floorheight = dest;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ sector->floorheight = lastpos;
+ P_ChangeSector(sector, crush);
+ //return crushed;
+ }
+ return pastdest;
+ }
+ else
+ {
+ lastpos = sector->floorheight;
+ sector->floorheight -= speed;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ sector->floorheight = lastpos;
+ P_ChangeSector(sector, crush);
+ return crushed;
+ }
+ }
+ break;
+
+ case 1: // UP
+ if (sector->floorheight + speed > dest)
+ {
+ lastpos = sector->floorheight;
+ sector->floorheight = dest;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ sector->floorheight = lastpos;
+ P_ChangeSector(sector, crush);
+ //return crushed;
+ }
+ return pastdest;
+ }
+ else // COULD GET CRUSHED
+ {
+ lastpos = sector->floorheight;
+ sector->floorheight += speed;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ if (crush == true)
+ return crushed;
+ sector->floorheight = lastpos;
+ P_ChangeSector(sector, crush);
+ return crushed;
+ }
+ }
+ break;
+ }
+ break;
+
+ case 1: // CEILING
+ switch (direction)
+ {
+ case -1: // DOWN
+ if (sector->ceilingheight - speed < dest)
+ {
+ lastpos = sector->ceilingheight;
+ sector->ceilingheight = dest;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ sector->ceilingheight = lastpos;
+ P_ChangeSector(sector, crush);
+ //return crushed;
+ }
+ return pastdest;
+ }
+ else // COULD GET CRUSHED
+ {
+ lastpos = sector->ceilingheight;
+ sector->ceilingheight -= speed;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ if (crush == true)
+ return crushed;
+ sector->ceilingheight = lastpos;
+ P_ChangeSector(sector, crush);
+ return crushed;
+ }
+ }
+ break;
+
+ case 1: // UP
+ if (sector->ceilingheight + speed > dest)
+ {
+ lastpos = sector->ceilingheight;
+ sector->ceilingheight = dest;
+ flag = P_ChangeSector(sector, crush);
+ if (flag == true)
+ {
+ sector->ceilingheight = lastpos;
+ P_ChangeSector(sector, crush);
+ //return crushed;
+ }
+ return pastdest;
+ }
+ else
+ {
+ lastpos = sector->ceilingheight;
+ sector->ceilingheight += speed;
+ flag = P_ChangeSector(sector, crush);
+#if 0
+ if (flag == true)
+ {
+ sector->ceilingheight = lastpos;
+ P_ChangeSector(sector, crush);
+ return crushed;
+ }
+#endif
+ }
+ break;
+ }
+ break;
+
+ }
+ return ok;
+}
+
+//==================================================================
+//
+// MOVE A FLOOR TO IT'S DESTINATION (UP OR DOWN)
+//
+//==================================================================
+void T_MoveFloor(floormove_t * floor)
+{
+ result_e res;
+
+ res = T_MovePlane(floor->sector, floor->speed,
+ floor->floordestheight, floor->crush, 0,
+ floor->direction);
+ if (!(leveltime & 7))
+ {
+ S_StartSound(&floor->sector->soundorg, sfx_dormov);
+ }
+
+ if (res == pastdest)
+ {
+ floor->sector->specialdata = NULL;
+ if (floor->type == raiseBuildStep)
+ {
+ S_StartSound(&floor->sector->soundorg, sfx_pstop);
+ }
+ if (floor->direction == 1)
+ switch (floor->type)
+ {
+ case donutRaise:
+ floor->sector->special = floor->newspecial;
+ floor->sector->floorpic = floor->texture;
+ default:
+ break;
+ }
+ else if (floor->direction == -1)
+ switch (floor->type)
+ {
+ case lowerAndChange:
+ floor->sector->special = floor->newspecial;
+ floor->sector->floorpic = floor->texture;
+ default:
+ break;
+ }
+ P_RemoveThinker(&floor->thinker);
+ }
+
+}
+
+//==================================================================
+//
+// HANDLE FLOOR TYPES
+//
+//==================================================================
+int EV_DoFloor(line_t * line, floor_e floortype)
+{
+ int secnum;
+ int rtn;
+ int i;
+ sector_t *sec;
+ floormove_t *floor;
+
+ secnum = -1;
+ rtn = 0;
+ while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
+ {
+ sec = &sectors[secnum];
+
+ // ALREADY MOVING? IF SO, KEEP GOING...
+ if (sec->specialdata)
+ continue;
+
+ //
+ // new floor thinker
+ //
+ rtn = 1;
+ floor = Z_Malloc(sizeof(*floor), PU_LEVSPEC, 0);
+ P_AddThinker(&floor->thinker);
+ sec->specialdata = floor;
+ floor->thinker.function = T_MoveFloor;
+ floor->type = floortype;
+ floor->crush = false;
+ switch (floortype)
+ {
+ case lowerFloor:
+ floor->direction = -1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = P_FindHighestFloorSurrounding(sec);
+ break;
+ case lowerFloorToLowest:
+ floor->direction = -1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = P_FindLowestFloorSurrounding(sec);
+ break;
+ case turboLower:
+ floor->direction = -1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED * 4;
+ floor->floordestheight = (8 * FRACUNIT) +
+ P_FindHighestFloorSurrounding(sec);
+ break;
+ case raiseFloorCrush:
+ floor->crush = true;
+ case raiseFloor:
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = P_FindLowestCeilingSurrounding(sec);
+ if (floor->floordestheight > sec->ceilingheight)
+ floor->floordestheight = sec->ceilingheight;
+ floor->floordestheight -= (8 * FRACUNIT) *
+ (floortype == raiseFloorCrush);
+ break;
+ case raiseFloorToNearest:
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight =
+ P_FindNextHighestFloor(sec, sec->floorheight);
+ break;
+ case raiseFloor24:
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = floor->sector->floorheight +
+ 24 * FRACUNIT;
+ break;
+ case raiseFloor24AndChange:
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = floor->sector->floorheight +
+ 24 * FRACUNIT;
+ sec->floorpic = line->frontsector->floorpic;
+ sec->special = line->frontsector->special;
+ break;
+ case raiseToTexture:
+ {
+ int minsize = INT_MAX;
+ side_t *side;
+
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ for (i = 0; i < sec->linecount; i++)
+ if (twoSided(secnum, i))
+ {
+ side = getSide(secnum, i, 0);
+ if (side->bottomtexture >= 0)
+ if (textureheight[side->bottomtexture] <
+ minsize)
+ minsize =
+ textureheight[side->bottomtexture];
+ side = getSide(secnum, i, 1);
+ if (side->bottomtexture >= 0)
+ if (textureheight[side->bottomtexture] <
+ minsize)
+ minsize =
+ textureheight[side->bottomtexture];
+ }
+ floor->floordestheight = floor->sector->floorheight +
+ minsize;
+ }
+ break;
+ case lowerAndChange:
+ floor->direction = -1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = P_FindLowestFloorSurrounding(sec);
+ floor->texture = sec->floorpic;
+ for (i = 0; i < sec->linecount; i++)
+ if (twoSided(secnum, i))
+ {
+ if (getSide(secnum, i, 0)->sector - sectors == secnum)
+ {
+ sec = getSector(secnum, i, 1);
+ floor->texture = sec->floorpic;
+ floor->newspecial = sec->special;
+ break;
+ }
+ else
+ {
+ sec = getSector(secnum, i, 0);
+ floor->texture = sec->floorpic;
+ floor->newspecial = sec->special;
+ break;
+ }
+ }
+ default:
+ break;
+ }
+ }
+ return rtn;
+}
+
+//==================================================================
+//
+// BUILD A STAIRCASE!
+//
+//==================================================================
+int EV_BuildStairs(line_t * line, fixed_t stepDelta)
+{
+ int secnum;
+ int height;
+ int i;
+ int newsecnum;
+ int texture;
+ int ok;
+ int rtn;
+ sector_t *sec, *tsec;
+ floormove_t *floor;
+
+ secnum = -1;
+ rtn = 0;
+ while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
+ {
+ sec = &sectors[secnum];
+
+ // ALREADY MOVING? IF SO, KEEP GOING...
+ if (sec->specialdata)
+ continue;
+
+ //
+ // new floor thinker
+ //
+ rtn = 1;
+ height = sec->floorheight + stepDelta;
+ floor = Z_Malloc(sizeof(*floor), PU_LEVSPEC, 0);
+ P_AddThinker(&floor->thinker);
+ sec->specialdata = floor;
+ floor->thinker.function = T_MoveFloor;
+ floor->type = raiseBuildStep;
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = height;
+
+ texture = sec->floorpic;
+
+ //
+ // Find next sector to raise
+ // 1. Find 2-sided line with same sector side[0]
+ // 2. Other side is the next sector to raise
+ //
+ do
+ {
+ ok = 0;
+ for (i = 0; i < sec->linecount; i++)
+ {
+ if (!((sec->lines[i])->flags & ML_TWOSIDED))
+ continue;
+
+ tsec = (sec->lines[i])->frontsector;
+ newsecnum = tsec - sectors;
+ if (secnum != newsecnum)
+ continue;
+ tsec = (sec->lines[i])->backsector;
+ newsecnum = tsec - sectors;
+ if (tsec->floorpic != texture)
+ continue;
+
+ height += stepDelta;
+ if (tsec->specialdata)
+ continue;
+
+ sec = tsec;
+ secnum = newsecnum;
+ floor = Z_Malloc(sizeof(*floor), PU_LEVSPEC, 0);
+ P_AddThinker(&floor->thinker);
+ sec->specialdata = floor;
+ floor->thinker.function = T_MoveFloor;
+ floor->type = raiseBuildStep;
+ floor->direction = 1;
+ floor->sector = sec;
+ floor->speed = FLOORSPEED;
+ floor->floordestheight = height;
+ ok = 1;
+ break;
+ }
+ }
+ while (ok);
+ }
+ return (rtn);
+}
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