p_floor.c
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上传日期:2021-05-12
资源大小:455k
文件大小:12k
源码类别:
射击游戏
开发平台:
Visual C++
- // Emacs style mode select -*- C++ -*-
- //-----------------------------------------------------------------------------
- //
- // $Id:$
- //
- // Copyright (C) 1993-1996 by id Software, Inc.
- //
- // This source is available for distribution and/or modification
- // only under the terms of the DOOM Source Code License as
- // published by id Software. All rights reserved.
- //
- // The source is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
- // for more details.
- //
- // $Log:$
- //
- // DESCRIPTION:
- // Floor animation: raising stairs.
- //
- //-----------------------------------------------------------------------------
- static const char
- rcsid[] = "$Id: p_floor.c,v 1.4 1997/02/03 16:47:54 b1 Exp $";
- #include "z_zone.h"
- #include "doomdef.h"
- #include "p_local.h"
- #include "s_sound.h"
- // State.
- #include "doomstat.h"
- #include "r_state.h"
- // Data.
- #include "sounds.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);
- // UNUSED
- #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((mobj_t *)&floor->sector->soundorg,
- sfx_stnmov);
- if (res == pastdest)
- {
- floor->sector->specialdata = NULL;
- 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);
- S_StartSound((mobj_t *)&floor->sector->soundorg,
- sfx_pstop);
- }
- }
- //
- // 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 = §ors[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.acp1 = (actionf_p1) 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 =
- P_FindHighestFloorSurrounding(sec);
- if (floor->floordestheight != sec->floorheight)
- floor->floordestheight += 8*FRACUNIT;
- 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 raiseFloorTurbo:
- floor->direction = 1;
- floor->sector = sec;
- floor->speed = FLOORSPEED*4;
- floor->floordestheight =
- P_FindNextHighestFloor(sec,sec->floorheight);
- 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 raiseFloor512:
- floor->direction = 1;
- floor->sector = sec;
- floor->speed = FLOORSPEED;
- floor->floordestheight = floor->sector->floorheight +
- 512 * 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 = MAXINT;
- 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);
- if (sec->floorheight == floor->floordestheight)
- {
- floor->texture = sec->floorpic;
- floor->newspecial = sec->special;
- break;
- }
- }
- else
- {
- sec = getSector(secnum,i,0);
- if (sec->floorheight == floor->floordestheight)
- {
- floor->texture = sec->floorpic;
- floor->newspecial = sec->special;
- break;
- }
- }
- }
- }
- default:
- break;
- }
- }
- return rtn;
- }
- //
- // BUILD A STAIRCASE!
- //
- int
- EV_BuildStairs
- ( line_t* line,
- stair_e type )
- {
- int secnum;
- int height;
- int i;
- int newsecnum;
- int texture;
- int ok;
- int rtn;
- sector_t* sec;
- sector_t* tsec;
- floormove_t* floor;
- fixed_t stairsize;
- fixed_t speed;
- secnum = -1;
- rtn = 0;
- while ((secnum = P_FindSectorFromLineTag(line,secnum)) >= 0)
- {
- sec = §ors[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.acp1 = (actionf_p1) T_MoveFloor;
- floor->direction = 1;
- floor->sector = sec;
- switch(type)
- {
- case build8:
- speed = FLOORSPEED/4;
- stairsize = 8*FRACUNIT;
- break;
- case turbo16:
- speed = FLOORSPEED*4;
- stairsize = 16*FRACUNIT;
- break;
- }
- floor->speed = speed;
- height = sec->floorheight + stairsize;
- 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 += stairsize;
- 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.acp1 = (actionf_p1) T_MoveFloor;
- floor->direction = 1;
- floor->sector = sec;
- floor->speed = speed;
- floor->floordestheight = height;
- ok = 1;
- break;
- }
- } while(ok);
- }
- return rtn;
- }