p_plats.c
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上传日期:2021-05-12
资源大小:455k
文件大小:7k
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:
- // Plats (i.e. elevator platforms) code, raising/lowering.
- //
- //-----------------------------------------------------------------------------
- static const char
- rcsid[] = "$Id: p_plats.c,v 1.5 1997/02/03 22:45:12 b1 Exp $";
- #include "i_system.h"
- #include "z_zone.h"
- #include "m_random.h"
- #include "doomdef.h"
- #include "p_local.h"
- #include "s_sound.h"
- // State.
- #include "doomstat.h"
- #include "r_state.h"
- // Data.
- #include "sounds.h"
- plat_t* activeplats[MAXPLATS];
- //
- // Move a plat up and down
- //
- void T_PlatRaise(plat_t* plat)
- {
- result_e res;
- switch(plat->status)
- {
- case up:
- res = T_MovePlane(plat->sector,
- plat->speed,
- plat->high,
- plat->crush,0,1);
- if (plat->type == raiseAndChange
- || plat->type == raiseToNearestAndChange)
- {
- if (!(leveltime&7))
- S_StartSound((mobj_t *)&plat->sector->soundorg,
- sfx_stnmov);
- }
- if (res == crushed && (!plat->crush))
- {
- plat->count = plat->wait;
- plat->status = down;
- S_StartSound((mobj_t *)&plat->sector->soundorg,
- sfx_pstart);
- }
- else
- {
- if (res == pastdest)
- {
- plat->count = plat->wait;
- plat->status = waiting;
- S_StartSound((mobj_t *)&plat->sector->soundorg,
- sfx_pstop);
- switch(plat->type)
- {
- case blazeDWUS:
- case downWaitUpStay:
- P_RemoveActivePlat(plat);
- break;
- case raiseAndChange:
- case raiseToNearestAndChange:
- P_RemoveActivePlat(plat);
- break;
- default:
- break;
- }
- }
- }
- break;
- case down:
- res = T_MovePlane(plat->sector,plat->speed,plat->low,false,0,-1);
- if (res == pastdest)
- {
- plat->count = plat->wait;
- plat->status = waiting;
- S_StartSound((mobj_t *)&plat->sector->soundorg,sfx_pstop);
- }
- break;
- case waiting:
- if (!--plat->count)
- {
- if (plat->sector->floorheight == plat->low)
- plat->status = up;
- else
- plat->status = down;
- S_StartSound((mobj_t *)&plat->sector->soundorg,sfx_pstart);
- }
- case in_stasis:
- break;
- }
- }
- //
- // Do Platforms
- // "amount" is only used for SOME platforms.
- //
- int
- EV_DoPlat
- ( line_t* line,
- plattype_e type,
- int amount )
- {
- plat_t* plat;
- int secnum;
- int rtn;
- sector_t* sec;
- secnum = -1;
- rtn = 0;
- // Activate all <type> plats that are in_stasis
- switch(type)
- {
- case perpetualRaise:
- P_ActivateInStasis(line->tag);
- break;
- default:
- break;
- }
- while ((secnum = P_FindSectorFromLineTag(line,secnum)) >= 0)
- {
- sec = §ors[secnum];
- if (sec->specialdata)
- continue;
- // Find lowest & highest floors around sector
- rtn = 1;
- plat = Z_Malloc( sizeof(*plat), PU_LEVSPEC, 0);
- P_AddThinker(&plat->thinker);
- plat->type = type;
- plat->sector = sec;
- plat->sector->specialdata = plat;
- plat->thinker.function.acp1 = (actionf_p1) T_PlatRaise;
- plat->crush = false;
- plat->tag = line->tag;
- switch(type)
- {
- case raiseToNearestAndChange:
- plat->speed = PLATSPEED/2;
- sec->floorpic = sides[line->sidenum[0]].sector->floorpic;
- plat->high = P_FindNextHighestFloor(sec,sec->floorheight);
- plat->wait = 0;
- plat->status = up;
- // NO MORE DAMAGE, IF APPLICABLE
- sec->special = 0;
- S_StartSound((mobj_t *)&sec->soundorg,sfx_stnmov);
- break;
- case raiseAndChange:
- plat->speed = PLATSPEED/2;
- sec->floorpic = sides[line->sidenum[0]].sector->floorpic;
- plat->high = sec->floorheight + amount*FRACUNIT;
- plat->wait = 0;
- plat->status = up;
- S_StartSound((mobj_t *)&sec->soundorg,sfx_stnmov);
- break;
- case downWaitUpStay:
- plat->speed = PLATSPEED * 4;
- plat->low = P_FindLowestFloorSurrounding(sec);
- if (plat->low > sec->floorheight)
- plat->low = sec->floorheight;
- plat->high = sec->floorheight;
- plat->wait = 35*PLATWAIT;
- plat->status = down;
- S_StartSound((mobj_t *)&sec->soundorg,sfx_pstart);
- break;
- case blazeDWUS:
- plat->speed = PLATSPEED * 8;
- plat->low = P_FindLowestFloorSurrounding(sec);
- if (plat->low > sec->floorheight)
- plat->low = sec->floorheight;
- plat->high = sec->floorheight;
- plat->wait = 35*PLATWAIT;
- plat->status = down;
- S_StartSound((mobj_t *)&sec->soundorg,sfx_pstart);
- break;
- case perpetualRaise:
- plat->speed = PLATSPEED;
- plat->low = P_FindLowestFloorSurrounding(sec);
- if (plat->low > sec->floorheight)
- plat->low = sec->floorheight;
- plat->high = P_FindHighestFloorSurrounding(sec);
- if (plat->high < sec->floorheight)
- plat->high = sec->floorheight;
- plat->wait = 35*PLATWAIT;
- plat->status = P_Random()&1;
- S_StartSound((mobj_t *)&sec->soundorg,sfx_pstart);
- break;
- }
- P_AddActivePlat(plat);
- }
- return rtn;
- }
- void P_ActivateInStasis(int tag)
- {
- int i;
- for (i = 0;i < MAXPLATS;i++)
- if (activeplats[i]
- && (activeplats[i])->tag == tag
- && (activeplats[i])->status == in_stasis)
- {
- (activeplats[i])->status = (activeplats[i])->oldstatus;
- (activeplats[i])->thinker.function.acp1
- = (actionf_p1) T_PlatRaise;
- }
- }
- void EV_StopPlat(line_t* line)
- {
- int j;
- for (j = 0;j < MAXPLATS;j++)
- if (activeplats[j]
- && ((activeplats[j])->status != in_stasis)
- && ((activeplats[j])->tag == line->tag))
- {
- (activeplats[j])->oldstatus = (activeplats[j])->status;
- (activeplats[j])->status = in_stasis;
- (activeplats[j])->thinker.function.acv = (actionf_v)NULL;
- }
- }
- void P_AddActivePlat(plat_t* plat)
- {
- int i;
- for (i = 0;i < MAXPLATS;i++)
- if (activeplats[i] == NULL)
- {
- activeplats[i] = plat;
- return;
- }
- I_Error ("P_AddActivePlat: no more plats!");
- }
- void P_RemoveActivePlat(plat_t* plat)
- {
- int i;
- for (i = 0;i < MAXPLATS;i++)
- if (plat == activeplats[i])
- {
- (activeplats[i])->sector->specialdata = NULL;
- P_RemoveThinker(&(activeplats[i])->thinker);
- activeplats[i] = NULL;
- return;
- }
- I_Error ("P_RemoveActivePlat: can't find plat!");
- }