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Diffstat (limited to 'src/p_lights.c')
| -rw-r--r-- | src/p_lights.c | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/src/p_lights.c b/src/p_lights.c new file mode 100644 index 00000000..2561f6ac --- /dev/null +++ b/src/p_lights.c @@ -0,0 +1,360 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// $Id: p_lights.c 4 2005-07-23 16:19:41Z fraggle $ +// +// 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. +// +// $Log$ +// Revision 1.1 2005/07/23 16:20:39 fraggle +// Initial revision +// +// +// DESCRIPTION: +// Handle Sector base lighting effects. +// Muzzle flash? +// +//----------------------------------------------------------------------------- + +static const char +rcsid[] = "$Id: p_lights.c 4 2005-07-23 16:19:41Z fraggle $"; + + +#include "z_zone.h" +#include "m_random.h" + +#include "doomdef.h" +#include "p_local.h" + + +// State. +#include "r_state.h" + +// +// FIRELIGHT FLICKER +// + +// +// T_FireFlicker +// +void T_FireFlicker (fireflicker_t* flick) +{ + int amount; + + if (--flick->count) + return; + + amount = (P_Random()&3)*16; + + if (flick->sector->lightlevel - amount < flick->minlight) + flick->sector->lightlevel = flick->minlight; + else + flick->sector->lightlevel = flick->maxlight - amount; + + flick->count = 4; +} + + + +// +// P_SpawnFireFlicker +// +void P_SpawnFireFlicker (sector_t* sector) +{ + fireflicker_t* flick; + + // Note that we are resetting sector attributes. + // Nothing special about it during gameplay. + sector->special = 0; + + flick = Z_Malloc ( sizeof(*flick), PU_LEVSPEC, 0); + + P_AddThinker (&flick->thinker); + + flick->thinker.function.acp1 = (actionf_p1) T_FireFlicker; + flick->sector = sector; + flick->maxlight = sector->lightlevel; + flick->minlight = P_FindMinSurroundingLight(sector,sector->lightlevel)+16; + flick->count = 4; +} + + + +// +// BROKEN LIGHT FLASHING +// + + +// +// T_LightFlash +// Do flashing lights. +// +void T_LightFlash (lightflash_t* flash) +{ + if (--flash->count) + return; + + if (flash->sector->lightlevel == flash->maxlight) + { + flash-> sector->lightlevel = flash->minlight; + flash->count = (P_Random()&flash->mintime)+1; + } + else + { + flash-> sector->lightlevel = flash->maxlight; + flash->count = (P_Random()&flash->maxtime)+1; + } + +} + + + + +// +// P_SpawnLightFlash +// After the map has been loaded, scan each sector +// for specials that spawn thinkers +// +void P_SpawnLightFlash (sector_t* sector) +{ + lightflash_t* flash; + + // nothing special about it during gameplay + sector->special = 0; + + flash = Z_Malloc ( sizeof(*flash), PU_LEVSPEC, 0); + + P_AddThinker (&flash->thinker); + + flash->thinker.function.acp1 = (actionf_p1) T_LightFlash; + flash->sector = sector; + flash->maxlight = sector->lightlevel; + + flash->minlight = P_FindMinSurroundingLight(sector,sector->lightlevel); + flash->maxtime = 64; + flash->mintime = 7; + flash->count = (P_Random()&flash->maxtime)+1; +} + + + +// +// STROBE LIGHT FLASHING +// + + +// +// T_StrobeFlash +// +void T_StrobeFlash (strobe_t* flash) +{ + if (--flash->count) + return; + + if (flash->sector->lightlevel == flash->minlight) + { + flash-> sector->lightlevel = flash->maxlight; + flash->count = flash->brighttime; + } + else + { + flash-> sector->lightlevel = flash->minlight; + flash->count =flash->darktime; + } + +} + + + +// +// P_SpawnStrobeFlash +// After the map has been loaded, scan each sector +// for specials that spawn thinkers +// +void +P_SpawnStrobeFlash +( sector_t* sector, + int fastOrSlow, + int inSync ) +{ + strobe_t* flash; + + flash = Z_Malloc ( sizeof(*flash), PU_LEVSPEC, 0); + + P_AddThinker (&flash->thinker); + + flash->sector = sector; + flash->darktime = fastOrSlow; + flash->brighttime = STROBEBRIGHT; + flash->thinker.function.acp1 = (actionf_p1) T_StrobeFlash; + flash->maxlight = sector->lightlevel; + flash->minlight = P_FindMinSurroundingLight(sector, sector->lightlevel); + + if (flash->minlight == flash->maxlight) + flash->minlight = 0; + + // nothing special about it during gameplay + sector->special = 0; + + if (!inSync) + flash->count = (P_Random()&7)+1; + else + flash->count = 1; +} + + +// +// Start strobing lights (usually from a trigger) +// +void EV_StartLightStrobing(line_t* line) +{ + int secnum; + sector_t* sec; + + secnum = -1; + while ((secnum = P_FindSectorFromLineTag(line,secnum)) >= 0) + { + sec = §ors[secnum]; + if (sec->specialdata) + continue; + + P_SpawnStrobeFlash (sec,SLOWDARK, 0); + } +} + + + +// +// TURN LINE'S TAG LIGHTS OFF +// +void EV_TurnTagLightsOff(line_t* line) +{ + int i; + int j; + int min; + sector_t* sector; + sector_t* tsec; + line_t* templine; + + sector = sectors; + + for (j = 0;j < numsectors; j++, sector++) + { + if (sector->tag == line->tag) + { + min = sector->lightlevel; + for (i = 0;i < sector->linecount; i++) + { + templine = sector->lines[i]; + tsec = getNextSector(templine,sector); + if (!tsec) + continue; + if (tsec->lightlevel < min) + min = tsec->lightlevel; + } + sector->lightlevel = min; + } + } +} + + +// +// TURN LINE'S TAG LIGHTS ON +// +void +EV_LightTurnOn +( line_t* line, + int bright ) +{ + int i; + int j; + sector_t* sector; + sector_t* temp; + line_t* templine; + + sector = sectors; + + for (i=0;i<numsectors;i++, sector++) + { + if (sector->tag == line->tag) + { + // bright = 0 means to search + // for highest light level + // surrounding sector + if (!bright) + { + for (j = 0;j < sector->linecount; j++) + { + templine = sector->lines[j]; + temp = getNextSector(templine,sector); + + if (!temp) + continue; + + if (temp->lightlevel > bright) + bright = temp->lightlevel; + } + } + sector-> lightlevel = bright; + } + } +} + + +// +// Spawn glowing light +// + +void T_Glow(glow_t* g) +{ + switch(g->direction) + { + case -1: + // DOWN + g->sector->lightlevel -= GLOWSPEED; + if (g->sector->lightlevel <= g->minlight) + { + g->sector->lightlevel += GLOWSPEED; + g->direction = 1; + } + break; + + case 1: + // UP + g->sector->lightlevel += GLOWSPEED; + if (g->sector->lightlevel >= g->maxlight) + { + g->sector->lightlevel -= GLOWSPEED; + g->direction = -1; + } + break; + } +} + + +void P_SpawnGlowingLight(sector_t* sector) +{ + glow_t* g; + + g = Z_Malloc( sizeof(*g), PU_LEVSPEC, 0); + + P_AddThinker(&g->thinker); + + g->sector = sector; + g->minlight = P_FindMinSurroundingLight(sector,sector->lightlevel); + g->maxlight = sector->lightlevel; + g->thinker.function.acp1 = (actionf_p1) T_Glow; + g->direction = -1; + + sector->special = 0; +} + |