ref: 817945120f025fcf8d90222bb767dafb0f847e5d
dir: /src/heretic/p_plats.c/
// // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 1993-2008 Raven Software // Copyright(C) 2005-2014 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. // // P_plats.c #include "doomdef.h" #include "i_system.h" #include "m_random.h" #include "p_local.h" #include "s_sound.h" #include "v_video.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 (!(leveltime & 31)) { S_StartSound(&plat->sector->soundorg, sfx_stnmov); } 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 downWaitUpStay: P_RemoveActivePlat(plat); break; case raiseAndChange: 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); } else { if (!(leveltime & 31)) { S_StartSound(&plat->sector->soundorg, sfx_stnmov); } } 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 = 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; sec->special = 0; // NO MORE DAMAGE, IF APPLICABLE 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 = 35 * 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 = 35 * 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 = 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 = 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!"); }