ref: 204a03688d5e0b3b1779f26c065427f2b1652524
dir: /src/doom/p_plats.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 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. // // DESCRIPTION: // Plats (i.e. elevator platforms) code, raising/lowering. // //----------------------------------------------------------------------------- #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(&plat->sector->soundorg, sfx_stnmov); } if (res == crushed && (!plat->crush)) { plat->count = plat->wait; plat->status = down; S_StartSound(&plat->sector->soundorg, sfx_pstart); } else { if (res == pastdest) { plat->count = plat->wait; plat->status = waiting; S_StartSound(&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(&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(&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(&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(&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 = TICRATE*PLATWAIT; plat->status = down; S_StartSound(&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 = TICRATE*PLATWAIT; plat->status = down; S_StartSound(&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 = TICRATE*PLATWAIT; plat->status = P_Random()&1; S_StartSound(&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!"); }