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Diffstat (limited to 'src/hexen/p_anim.c')
| -rw-r--r-- | src/hexen/p_anim.c | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/src/hexen/p_anim.c b/src/hexen/p_anim.c new file mode 100644 index 00000000..c23c95fa --- /dev/null +++ b/src/hexen/p_anim.c @@ -0,0 +1,489 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// Copyright(C) 1993-1996 Id Software, Inc. +// Copyright(C) 1993-2008 Raven Software +// Copyright(C) 2008 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. +// +//----------------------------------------------------------------------------- + + +// HEADER FILES ------------------------------------------------------------ + +#include "h2def.h" +#include "m_random.h" +#include "i_system.h" +#include "p_local.h" +#include "s_sound.h" + +// MACROS ------------------------------------------------------------------ + +#define ANIM_SCRIPT_NAME "ANIMDEFS" +#define MAX_ANIM_DEFS 20 +#define MAX_FRAME_DEFS 96 +#define ANIM_FLAT 0 +#define ANIM_TEXTURE 1 +#define SCI_FLAT "flat" +#define SCI_TEXTURE "texture" +#define SCI_PIC "pic" +#define SCI_TICS "tics" +#define SCI_RAND "rand" + +#define LIGHTNING_SPECIAL 198 +#define LIGHTNING_SPECIAL2 199 +#define SKYCHANGE_SPECIAL 200 + +// TYPES ------------------------------------------------------------------- + +typedef struct +{ + int index; + int tics; +} frameDef_t; + +typedef struct +{ + int type; + int index; + int tics; + int currentFrameDef; + int startFrameDef; + int endFrameDef; +} animDef_t; + +// EXTERNAL FUNCTION PROTOTYPES -------------------------------------------- + +// PUBLIC FUNCTION PROTOTYPES ---------------------------------------------- + +// PRIVATE FUNCTION PROTOTYPES --------------------------------------------- + +static void P_LightningFlash(void); + +// EXTERNAL DATA DECLARATIONS ---------------------------------------------- + +extern fixed_t Sky1ColumnOffset; +extern fixed_t Sky2ColumnOffset; +extern int Sky1Texture; +extern boolean DoubleSky; + +// PUBLIC DATA DEFINITIONS ------------------------------------------------- + +fixed_t Sky1ScrollDelta; +fixed_t Sky2ScrollDelta; + +// PRIVATE DATA DEFINITIONS ------------------------------------------------ + +static animDef_t AnimDefs[MAX_ANIM_DEFS]; +static frameDef_t FrameDefs[MAX_FRAME_DEFS]; +static int AnimDefCount; +static boolean LevelHasLightning; +static int NextLightningFlash; +static int LightningFlash; +static int *LightningLightLevels; + +// CODE -------------------------------------------------------------------- + +//========================================================================== +// +// P_AnimateSurfaces +// +//========================================================================== + +void P_AnimateSurfaces(void) +{ + int i; + animDef_t *ad; + line_t *line; + + // Animate flats and textures + for (i = 0; i < AnimDefCount; i++) + { + ad = &AnimDefs[i]; + ad->tics--; + if (ad->tics == 0) + { + if (ad->currentFrameDef == ad->endFrameDef) + { + ad->currentFrameDef = ad->startFrameDef; + } + else + { + ad->currentFrameDef++; + } + ad->tics = FrameDefs[ad->currentFrameDef].tics; + if (ad->tics > 255) + { // Random tics + ad->tics = (ad->tics >> 16) + + P_Random() % ((ad->tics & 0xff00) >> 8); + } + if (ad->type == ANIM_FLAT) + { + flattranslation[ad->index] = + FrameDefs[ad->currentFrameDef].index; + } + else + { // Texture + texturetranslation[ad->index] = + FrameDefs[ad->currentFrameDef].index; + } + } + } + + // Update scrolling textures + for (i = 0; i < numlinespecials; i++) + { + line = linespeciallist[i]; + switch (line->special) + { + case 100: // Scroll_Texture_Left + sides[line->sidenum[0]].textureoffset += line->arg1 << 10; + break; + case 101: // Scroll_Texture_Right + sides[line->sidenum[0]].textureoffset -= line->arg1 << 10; + break; + case 102: // Scroll_Texture_Up + sides[line->sidenum[0]].rowoffset += line->arg1 << 10; + break; + case 103: // Scroll_Texture_Down + sides[line->sidenum[0]].rowoffset -= line->arg1 << 10; + break; + } + } + + // Update sky column offsets + Sky1ColumnOffset += Sky1ScrollDelta; + Sky2ColumnOffset += Sky2ScrollDelta; + + if (LevelHasLightning) + { + if (!NextLightningFlash || LightningFlash) + { + P_LightningFlash(); + } + else + { + NextLightningFlash--; + } + } +} + +//========================================================================== +// +// P_LightningFlash +// +//========================================================================== + +static void P_LightningFlash(void) +{ + int i; + sector_t *tempSec; + int *tempLight; + boolean foundSec; + int flashLight; + + if (LightningFlash) + { + LightningFlash--; + if (LightningFlash) + { + tempLight = LightningLightLevels; + tempSec = sectors; + for (i = 0; i < numsectors; i++, tempSec++) + { + if (tempSec->ceilingpic == skyflatnum + || tempSec->special == LIGHTNING_SPECIAL + || tempSec->special == LIGHTNING_SPECIAL2) + { + if (*tempLight < tempSec->lightlevel - 4) + { + tempSec->lightlevel -= 4; + } + tempLight++; + } + } + } + else + { // remove the alternate lightning flash special + tempLight = LightningLightLevels; + tempSec = sectors; + for (i = 0; i < numsectors; i++, tempSec++) + { + if (tempSec->ceilingpic == skyflatnum + || tempSec->special == LIGHTNING_SPECIAL + || tempSec->special == LIGHTNING_SPECIAL2) + { + tempSec->lightlevel = *tempLight; + tempLight++; + } + } + Sky1Texture = P_GetMapSky1Texture(gamemap); + } + return; + } + LightningFlash = (P_Random() & 7) + 8; + flashLight = 200 + (P_Random() & 31); + tempSec = sectors; + tempLight = LightningLightLevels; + foundSec = false; + for (i = 0; i < numsectors; i++, tempSec++) + { + if (tempSec->ceilingpic == skyflatnum + || tempSec->special == LIGHTNING_SPECIAL + || tempSec->special == LIGHTNING_SPECIAL2) + { + *tempLight = tempSec->lightlevel; + if (tempSec->special == LIGHTNING_SPECIAL) + { + tempSec->lightlevel += 64; + if (tempSec->lightlevel > flashLight) + { + tempSec->lightlevel = flashLight; + } + } + else if (tempSec->special == LIGHTNING_SPECIAL2) + { + tempSec->lightlevel += 32; + if (tempSec->lightlevel > flashLight) + { + tempSec->lightlevel = flashLight; + } + } + else + { + tempSec->lightlevel = flashLight; + } + if (tempSec->lightlevel < *tempLight) + { + tempSec->lightlevel = *tempLight; + } + tempLight++; + foundSec = true; + } + } + if (foundSec) + { + Sky1Texture = P_GetMapSky2Texture(gamemap); // set alternate sky + S_StartSound(NULL, SFX_THUNDER_CRASH); + } + // Calculate the next lighting flash + if (!NextLightningFlash) + { + if (P_Random() < 50) + { // Immediate Quick flash + NextLightningFlash = (P_Random() & 15) + 16; + } + else + { + if (P_Random() < 128 && !(leveltime & 32)) + { + NextLightningFlash = ((P_Random() & 7) + 2) * 35; + } + else + { + NextLightningFlash = ((P_Random() & 15) + 5) * 35; + } + } + } +} + +//========================================================================== +// +// P_ForceLightning +// +//========================================================================== + +void P_ForceLightning(void) +{ + NextLightningFlash = 0; +} + +//========================================================================== +// +// P_InitLightning +// +//========================================================================== + +void P_InitLightning(void) +{ + int i; + int secCount; + + if (!P_GetMapLightning(gamemap)) + { + LevelHasLightning = false; + LightningFlash = 0; + return; + } + LightningFlash = 0; + secCount = 0; + for (i = 0; i < numsectors; i++) + { + if (sectors[i].ceilingpic == skyflatnum + || sectors[i].special == LIGHTNING_SPECIAL + || sectors[i].special == LIGHTNING_SPECIAL2) + { + secCount++; + } + } + if (secCount) + { + LevelHasLightning = true; + } + else + { + LevelHasLightning = false; + return; + } + LightningLightLevels = (int *) Z_Malloc(secCount * sizeof(int), PU_LEVEL, + NULL); + NextLightningFlash = ((P_Random() & 15) + 5) * 35; // don't flash at level start +} + +//========================================================================== +// +// P_InitFTAnims +// +// Initialize flat and texture animation lists. +// +//========================================================================== + +void P_InitFTAnims(void) +{ + int base; + int mod; + int fd; + animDef_t *ad; + boolean ignore; + boolean done; + + fd = 0; + ad = AnimDefs; + AnimDefCount = 0; + SC_Open(ANIM_SCRIPT_NAME); + while (SC_GetString()) + { + if (AnimDefCount == MAX_ANIM_DEFS) + { + I_Error("P_InitFTAnims: too many AnimDefs."); + } + if (SC_Compare(SCI_FLAT)) + { + ad->type = ANIM_FLAT; + } + else if (SC_Compare(SCI_TEXTURE)) + { + ad->type = ANIM_TEXTURE; + } + else + { + SC_ScriptError(NULL); + } + SC_MustGetString(); // Name + ignore = false; + if (ad->type == ANIM_FLAT) + { + if (W_CheckNumForName(sc_String) == -1) + { + ignore = true; + } + else + { + ad->index = R_FlatNumForName(sc_String); + } + } + else + { // Texture + if (R_CheckTextureNumForName(sc_String) == -1) + { + ignore = true; + } + else + { + ad->index = R_TextureNumForName(sc_String); + } + } + ad->startFrameDef = fd; + done = false; + while (done == false) + { + if (SC_GetString()) + { + if (SC_Compare(SCI_PIC)) + { + if (fd == MAX_FRAME_DEFS) + { + I_Error("P_InitFTAnims: too many FrameDefs."); + } + SC_MustGetNumber(); + if (ignore == false) + { + FrameDefs[fd].index = ad->index + sc_Number - 1; + } + SC_MustGetString(); + if (SC_Compare(SCI_TICS)) + { + SC_MustGetNumber(); + if (ignore == false) + { + FrameDefs[fd].tics = sc_Number; + fd++; + } + } + else if (SC_Compare(SCI_RAND)) + { + SC_MustGetNumber(); + base = sc_Number; + SC_MustGetNumber(); + if (ignore == false) + { + mod = sc_Number - base + 1; + FrameDefs[fd].tics = (base << 16) + (mod << 8); + fd++; + } + } + else + { + SC_ScriptError(NULL); + } + } + else + { + SC_UnGet(); + done = true; + } + } + else + { + done = true; + } + } + if ((ignore == false) && (fd - ad->startFrameDef < 2)) + { + I_Error("P_InitFTAnims: AnimDef has framecount < 2."); + } + if (ignore == false) + { + ad->endFrameDef = fd - 1; + ad->currentFrameDef = ad->endFrameDef; + ad->tics = 1; // Force 1st game tic to animate + AnimDefCount++; + ad++; + } + } + SC_Close(); +} |