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hexen/Hexen Source/R_THINGS.C
archive 3ae84e87c6 as re-released 2008-09-04
2008-09-04 00:00:00 +00:00

1033 lines
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C
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//**************************************************************************
//**
//** r_things.c : Heretic 2 : Raven Software, Corp.
//**
//** $RCSfile: r_things.c,v $
//** $Revision: 1.26 $
//** $Date: 96/01/06 18:37:42 $
//** $Author: bgokey $
//**
//**************************************************************************
#include <stdio.h>
#include <stdlib.h>
#include "h2def.h"
#include "r_local.h"
void R_DrawColumn (void);
void R_DrawFuzzColumn (void);
void R_DrawAltFuzzColumn(void);
//void R_DrawTranslatedAltFuzzColumn(void);
typedef struct
{
int x1, x2;
int column;
int topclip;
int bottomclip;
} maskdraw_t;
/*
Sprite rotation 0 is facing the viewer, rotation 1 is one angle turn CLOCKWISE around the axis.
This is not the same as the angle, which increases counter clockwise
(protractor). There was a lot of stuff grabbed wrong, so I changed it...
*/
fixed_t pspritescale, pspriteiscale;
lighttable_t **spritelights;
// constant arrays used for psprite clipping and initializing clipping
short negonearray[SCREENWIDTH];
short screenheightarray[SCREENWIDTH];
boolean LevelUseFullBright;
/*
===============================================================================
INITIALIZATION FUNCTIONS
===============================================================================
*/
// variables used to look up and range check thing_t sprites patches
spritedef_t *sprites;
int numsprites;
spriteframe_t sprtemp[30];
int maxframe;
char *spritename;
/*
=================
=
= R_InstallSpriteLump
=
= Local function for R_InitSprites
=================
*/
void R_InstallSpriteLump (int lump, unsigned frame, unsigned rotation, boolean flipped)
{
int r;
if (frame >= 30 || rotation > 8)
I_Error ("R_InstallSpriteLump: Bad frame characters in lump %i", lump);
if ((int)frame > maxframe)
maxframe = frame;
if (rotation == 0)
{
// the lump should be used for all rotations
if (sprtemp[frame].rotate == false)
I_Error ("R_InitSprites: Sprite %s frame %c has multip rot=0 lump"
, spritename, 'A'+frame);
if (sprtemp[frame].rotate == true)
I_Error ("R_InitSprites: Sprite %s frame %c has rotations and a rot=0 lump"
, spritename, 'A'+frame);
sprtemp[frame].rotate = false;
for (r=0 ; r<8 ; r++)
{
sprtemp[frame].lump[r] = lump - firstspritelump;
sprtemp[frame].flip[r] = (byte)flipped;
}
return;
}
// the lump is only used for one rotation
if (sprtemp[frame].rotate == false)
I_Error ("R_InitSprites: Sprite %s frame %c has rotations and a rot=0 lump"
, spritename, 'A'+frame);
sprtemp[frame].rotate = true;
rotation--; // make 0 based
if (sprtemp[frame].lump[rotation] != -1)
I_Error ("R_InitSprites: Sprite %s : %c : %c has two lumps mapped to it"
,spritename, 'A'+frame, '1'+rotation);
sprtemp[frame].lump[rotation] = lump - firstspritelump;
sprtemp[frame].flip[rotation] = (byte)flipped;
}
/*
=================
=
= R_InitSpriteDefs
=
= Pass a null terminated list of sprite names (4 chars exactly) to be used
= Builds the sprite rotation matrixes to account for horizontally flipped
= sprites. Will report an error if the lumps are inconsistant
=
Only called at startup
=
= Sprite lump names are 4 characters for the actor, a letter for the frame,
= and a number for the rotation, A sprite that is flippable will have an
= additional letter/number appended. The rotation character can be 0 to
= signify no rotations
=================
*/
void R_InitSpriteDefs (char **namelist)
{
char **check;
int i, l, intname, frame, rotation;
int start, end;
// count the number of sprite names
check = namelist;
while (*check != NULL)
check++;
numsprites = check-namelist;
if (!numsprites)
return;
sprites = Z_Malloc(numsprites *sizeof(*sprites), PU_STATIC, NULL);
start = firstspritelump-1;
end = lastspritelump+1;
// scan all the lump names for each of the names, noting the highest
// frame letter
// Just compare 4 characters as ints
for (i=0 ; i<numsprites ; i++)
{
spritename = namelist[i];
memset (sprtemp,-1, sizeof(sprtemp));
maxframe = -1;
intname = *(int *)namelist[i];
//
// scan the lumps, filling in the frames for whatever is found
//
for (l=start+1 ; l<end ; l++)
if (*(int *)lumpinfo[l].name == intname)
{
frame = lumpinfo[l].name[4] - 'A';
rotation = lumpinfo[l].name[5] - '0';
R_InstallSpriteLump (l, frame, rotation, false);
if (lumpinfo[l].name[6])
{
frame = lumpinfo[l].name[6] - 'A';
rotation = lumpinfo[l].name[7] - '0';
R_InstallSpriteLump (l, frame, rotation, true);
}
}
//
// check the frames that were found for completeness
//
if (maxframe == -1)
{
//continue;
sprites[i].numframes = 0;
if (shareware)
continue;
I_Error ("R_InitSprites: No lumps found for sprite %s"
,namelist[i]);
}
maxframe++;
for (frame = 0 ; frame < maxframe ; frame++)
{
switch ((int)sprtemp[frame].rotate)
{
case -1: // no rotations were found for that frame at all
I_Error ("R_InitSprites: No patches found for %s frame %c"
, namelist[i], frame+'A');
case 0: // only the first rotation is needed
break;
case 1: // must have all 8 frames
for (rotation=0 ; rotation<8 ; rotation++)
if (sprtemp[frame].lump[rotation] == -1)
I_Error ("R_InitSprites: Sprite %s frame %c is missing rotations"
, namelist[i], frame+'A');
}
}
//
// allocate space for the frames present and copy sprtemp to it
//
sprites[i].numframes = maxframe;
sprites[i].spriteframes =
Z_Malloc (maxframe * sizeof(spriteframe_t), PU_STATIC, NULL);
memcpy (sprites[i].spriteframes, sprtemp, maxframe*sizeof(spriteframe_t));
}
}
/*
===============================================================================
GAME FUNCTIONS
===============================================================================
*/
vissprite_t vissprites[MAXVISSPRITES], *vissprite_p;
int newvissprite;
/*
===================
=
= R_InitSprites
=
= Called at program start
===================
*/
void R_InitSprites (char **namelist)
{
int i;
for (i=0 ; i<SCREENWIDTH ; i++)
{
negonearray[i] = -1;
}
R_InitSpriteDefs (namelist);
}
/*
===================
=
= R_ClearSprites
=
= Called at frame start
===================
*/
void R_ClearSprites (void)
{
vissprite_p = vissprites;
}
/*
===================
=
= R_NewVisSprite
=
===================
*/
vissprite_t overflowsprite;
vissprite_t *R_NewVisSprite (void)
{
if (vissprite_p == &vissprites[MAXVISSPRITES])
return &overflowsprite;
vissprite_p++;
return vissprite_p-1;
}
/*
================
=
= R_DrawMaskedColumn
=
= Used for sprites and masked mid textures
================
*/
short *mfloorclip;
short *mceilingclip;
fixed_t spryscale;
fixed_t sprtopscreen;
fixed_t sprbotscreen;
void R_DrawMaskedColumn (column_t *column, signed int baseclip)
{
int topscreen, bottomscreen;
fixed_t basetexturemid;
basetexturemid = dc_texturemid;
for ( ; column->topdelta != 0xff ; )
{
// calculate unclipped screen coordinates for post
topscreen = sprtopscreen + spryscale*column->topdelta;
bottomscreen = topscreen + spryscale*column->length;
dc_yl = (topscreen+FRACUNIT-1)>>FRACBITS;
dc_yh = (bottomscreen-1)>>FRACBITS;
if (dc_yh >= mfloorclip[dc_x])
dc_yh = mfloorclip[dc_x]-1;
if (dc_yl <= mceilingclip[dc_x])
dc_yl = mceilingclip[dc_x]+1;
if(dc_yh >= baseclip && baseclip != -1)
dc_yh = baseclip;
if (dc_yl <= dc_yh)
{
dc_source = (byte *)column + 3;
dc_texturemid = basetexturemid - (column->topdelta<<FRACBITS);
// dc_source = (byte *)column + 3 - column->topdelta;
colfunc (); // either R_DrawColumn or R_DrawFuzzColumn
}
column = (column_t *)( (byte *)column + column->length + 4);
}
dc_texturemid = basetexturemid;
}
/*
================
=
= R_DrawVisSprite
=
= mfloorclip and mceilingclip should also be set
================
*/
void R_DrawVisSprite (vissprite_t *vis, int x1, int x2)
{
column_t *column;
int texturecolumn;
fixed_t frac;
patch_t *patch;
fixed_t baseclip;
patch = W_CacheLumpNum(vis->patch+firstspritelump, PU_CACHE);
dc_colormap = vis->colormap;
// if(!dc_colormap)
// colfunc = fuzzcolfunc; // NULL colormap = shadow draw
if(vis->mobjflags&(MF_SHADOW|MF_ALTSHADOW))
{
if(vis->mobjflags&MF_TRANSLATION)
{
colfunc = R_DrawTranslatedFuzzColumn;
dc_translation = translationtables-256
+vis->class*((MAXPLAYERS-1)*256)+
((vis->mobjflags&MF_TRANSLATION)>>(MF_TRANSSHIFT-8));
}
else if(vis->mobjflags&MF_SHADOW)
{ // Draw using shadow column function
colfunc = fuzzcolfunc;
}
else
{
colfunc = R_DrawAltFuzzColumn;
}
}
else if(vis->mobjflags&MF_TRANSLATION)
{
// Draw using translated column function
colfunc = R_DrawTranslatedColumn;
dc_translation = translationtables-256
+vis->class*((MAXPLAYERS-1)*256)+
((vis->mobjflags&MF_TRANSLATION)>>(MF_TRANSSHIFT-8));
}
dc_iscale = abs(vis->xiscale)>>detailshift;
dc_texturemid = vis->texturemid;
frac = vis->startfrac;
spryscale = vis->scale;
sprtopscreen = centeryfrac - FixedMul(dc_texturemid,spryscale);
// check to see if vissprite is a weapon
if(vis->psprite)
{
dc_texturemid += FixedMul(((centery-viewheight/2)<<FRACBITS),
vis->xiscale);
sprtopscreen += (viewheight/2-centery)<<FRACBITS;
}
if(vis->floorclip && !vis->psprite)
{
sprbotscreen = sprtopscreen+FixedMul(patch->height<<FRACBITS,
spryscale);
baseclip = (sprbotscreen-FixedMul(vis->floorclip,
spryscale))>>FRACBITS;
}
else
{
baseclip = -1;
}
for (dc_x=vis->x1 ; dc_x<=vis->x2 ; dc_x++, frac += vis->xiscale)
{
texturecolumn = frac>>FRACBITS;
#ifdef RANGECHECK
if (texturecolumn < 0 || texturecolumn >= SHORT(patch->width))
I_Error ("R_DrawSpriteRange: bad texturecolumn");
#endif
column = (column_t *) ((byte *)patch +
LONG(patch->columnofs[texturecolumn]));
R_DrawMaskedColumn (column, baseclip);
}
colfunc = basecolfunc;
}
/*
===================
=
= R_ProjectSprite
=
= Generates a vissprite for a thing if it might be visible
=
===================
*/
void R_ProjectSprite (mobj_t *thing)
{
fixed_t trx,try;
fixed_t gxt,gyt;
fixed_t tx,tz;
fixed_t xscale;
int x1, x2;
spritedef_t *sprdef;
spriteframe_t *sprframe;
int lump;
unsigned rot;
boolean flip;
int index;
vissprite_t *vis;
angle_t ang;
fixed_t iscale;
if(thing->flags2&MF2_DONTDRAW)
{ // Never make a vissprite when MF2_DONTDRAW is flagged.
return;
}
//
// transform the origin point
//
trx = thing->x - viewx;
try = thing->y - viewy;
gxt = FixedMul(trx,viewcos);
gyt = -FixedMul(try,viewsin);
tz = gxt-gyt;
if (tz < MINZ)
return; // thing is behind view plane
xscale = FixedDiv(projection, tz);
gxt = -FixedMul(trx,viewsin);
gyt = FixedMul(try,viewcos);
tx = -(gyt+gxt);
if (abs(tx)>(tz<<2))
return; // too far off the side
//
// decide which patch to use for sprite reletive to player
//
#ifdef RANGECHECK
if ((unsigned)thing->sprite >= numsprites)
I_Error ("R_ProjectSprite: invalid sprite number %i ",thing->sprite);
#endif
sprdef = &sprites[thing->sprite];
#ifdef RANGECHECK
if ( (thing->frame&FF_FRAMEMASK) >= sprdef->numframes )
I_Error ("R_ProjectSprite: invalid sprite frame %i : %i "
,thing->sprite, thing->frame);
#endif
sprframe = &sprdef->spriteframes[ thing->frame & FF_FRAMEMASK];
if (sprframe->rotate)
{ // choose a different rotation based on player view
ang = R_PointToAngle (thing->x, thing->y);
rot = (ang-thing->angle+(unsigned)(ANG45/2)*9)>>29;
lump = sprframe->lump[rot];
flip = (boolean)sprframe->flip[rot];
}
else
{ // use single rotation for all views
lump = sprframe->lump[0];
flip = (boolean)sprframe->flip[0];
}
//
// calculate edges of the shape
//
tx -= spriteoffset[lump];
x1 = (centerxfrac + FixedMul (tx,xscale) ) >>FRACBITS;
if (x1 > viewwidth)
return; // off the right side
tx += spritewidth[lump];
x2 = ((centerxfrac + FixedMul (tx,xscale) ) >>FRACBITS) - 1;
if (x2 < 0)
return; // off the left side
//
// store information in a vissprite
//
vis = R_NewVisSprite ();
vis->mobjflags = thing->flags;
vis->psprite = false;
vis->scale = xscale<<detailshift;
vis->gx = thing->x;
vis->gy = thing->y;
vis->gz = thing->z;
vis->gzt = thing->z + spritetopoffset[lump];
if(thing->flags&MF_TRANSLATION)
{
if(thing->player)
{
vis->class = thing->player->class;
}
else
{
vis->class = thing->special1;
}
if(vis->class > 2)
{
vis->class = 0;
}
}
// foot clipping
vis->floorclip = thing->floorclip;
vis->texturemid = vis->gzt-viewz-vis->floorclip;
vis->x1 = x1 < 0 ? 0 : x1;
vis->x2 = x2 >= viewwidth ? viewwidth-1 : x2;
iscale = FixedDiv (FRACUNIT, xscale);
if (flip)
{
vis->startfrac = spritewidth[lump]-1;
vis->xiscale = -iscale;
}
else
{
vis->startfrac = 0;
vis->xiscale = iscale;
}
if (vis->x1 > x1)
vis->startfrac += vis->xiscale*(vis->x1-x1);
vis->patch = lump;
//
// get light level
//
// if (thing->flags & MF_SHADOW)
// vis->colormap = NULL; // shadow draw
// else ...
if (fixedcolormap)
vis->colormap = fixedcolormap; // fixed map
else if(LevelUseFullBright && thing->frame&FF_FULLBRIGHT)
vis->colormap = colormaps; // full bright
else
{ // diminished light
index = xscale>>(LIGHTSCALESHIFT-detailshift);
if (index >= MAXLIGHTSCALE)
index = MAXLIGHTSCALE-1;
vis->colormap = spritelights[index];
}
}
/*
========================
=
= R_AddSprites
=
========================
*/
void R_AddSprites (sector_t *sec)
{
mobj_t *thing;
int lightnum;
if (sec->validcount == validcount)
return; // already added
sec->validcount = validcount;
lightnum = (sec->lightlevel >> LIGHTSEGSHIFT)+extralight;
if (lightnum < 0)
spritelights = scalelight[0];
else if (lightnum >= LIGHTLEVELS)
spritelights = scalelight[LIGHTLEVELS-1];
else
spritelights = scalelight[lightnum];
for (thing = sec->thinglist ; thing ; thing = thing->snext)
R_ProjectSprite (thing);
}
/*
========================
=
= R_DrawPSprite
=
========================
*/
// Y-adjustment values for full screen (4 weapons)
int PSpriteSY[NUMCLASSES][NUMWEAPONS] =
{
{ 0, -12*FRACUNIT, -10*FRACUNIT, 10*FRACUNIT }, // Fighter
{ -8*FRACUNIT, 10*FRACUNIT, 10*FRACUNIT, 0 }, // Cleric
{ 9*FRACUNIT, 20*FRACUNIT, 20*FRACUNIT, 20*FRACUNIT }, // Mage
{ 10*FRACUNIT, 10*FRACUNIT, 10*FRACUNIT, 10*FRACUNIT } // Pig
};
void R_DrawPSprite (pspdef_t *psp)
{
fixed_t tx;
int x1, x2;
spritedef_t *sprdef;
spriteframe_t *sprframe;
int lump;
boolean flip;
vissprite_t *vis, avis;
int tempangle;
//
// decide which patch to use
//
#ifdef RANGECHECK
if ( (unsigned)psp->state->sprite >= numsprites)
I_Error ("R_ProjectSprite: invalid sprite number %i "
, psp->state->sprite);
#endif
sprdef = &sprites[psp->state->sprite];
#ifdef RANGECHECK
if ( (psp->state->frame & FF_FRAMEMASK) >= sprdef->numframes)
I_Error ("R_ProjectSprite: invalid sprite frame %i : %i "
, psp->state->sprite, psp->state->frame);
#endif
sprframe = &sprdef->spriteframes[ psp->state->frame & FF_FRAMEMASK ];
lump = sprframe->lump[0];
flip = (boolean)sprframe->flip[0];
//
// calculate edges of the shape
//
tx = psp->sx-160*FRACUNIT;
tx -= spriteoffset[lump];
if(viewangleoffset)
{
tempangle = ((centerxfrac/1024)*(viewangleoffset>>ANGLETOFINESHIFT));
}
else
{
tempangle = 0;
}
x1 = (centerxfrac + FixedMul (tx,pspritescale)+tempangle ) >>FRACBITS;
if (x1 > viewwidth)
return; // off the right side
tx += spritewidth[lump];
x2 = ((centerxfrac + FixedMul (tx, pspritescale)+tempangle ) >>FRACBITS) - 1;
if (x2 < 0)
return; // off the left side
//
// store information in a vissprite
//
vis = &avis;
vis->mobjflags = 0;
vis->class = 0;
vis->psprite = true;
vis->texturemid = (BASEYCENTER<<FRACBITS)+FRACUNIT/2
-(psp->sy-spritetopoffset[lump]);
if(viewheight == SCREENHEIGHT)
{
vis->texturemid -= PSpriteSY[viewplayer->class]
[players[consoleplayer].readyweapon];
}
vis->x1 = x1 < 0 ? 0 : x1;
vis->x2 = x2 >= viewwidth ? viewwidth-1 : x2;
vis->scale = pspritescale<<detailshift;
if (flip)
{
vis->xiscale = -pspriteiscale;
vis->startfrac = spritewidth[lump]-1;
}
else
{
vis->xiscale = pspriteiscale;
vis->startfrac = 0;
}
if (vis->x1 > x1)
vis->startfrac += vis->xiscale*(vis->x1-x1);
vis->patch = lump;
if(viewplayer->powers[pw_invulnerability] && viewplayer->class
== PCLASS_CLERIC)
{
vis->colormap = spritelights[MAXLIGHTSCALE-1];
if(viewplayer->powers[pw_invulnerability] > 4*32)
{
if(viewplayer->mo->flags2&MF2_DONTDRAW)
{ // don't draw the psprite
vis->mobjflags |= MF_SHADOW;
}
else if(viewplayer->mo->flags&MF_SHADOW)
{
vis->mobjflags |= MF_ALTSHADOW;
}
}
else if(viewplayer->powers[pw_invulnerability]&8)
{
vis->mobjflags |= MF_SHADOW;
}
}
else if(fixedcolormap)
{
// Fixed color
vis->colormap = fixedcolormap;
}
else if(psp->state->frame & FF_FULLBRIGHT)
{
// Full bright
vis->colormap = colormaps;
}
else
{
// local light
vis->colormap = spritelights[MAXLIGHTSCALE-1];
}
R_DrawVisSprite(vis, vis->x1, vis->x2);
}
/*
========================
=
= R_DrawPlayerSprites
=
========================
*/
void R_DrawPlayerSprites (void)
{
int i, lightnum;
pspdef_t *psp;
//
// get light level
//
lightnum = (viewplayer->mo->subsector->sector->lightlevel >> LIGHTSEGSHIFT)
+extralight;
if (lightnum < 0)
spritelights = scalelight[0];
else if (lightnum >= LIGHTLEVELS)
spritelights = scalelight[LIGHTLEVELS-1];
else
spritelights = scalelight[lightnum];
//
// clip to screen bounds
//
mfloorclip = screenheightarray;
mceilingclip = negonearray;
//
// add all active psprites
//
for (i=0, psp=viewplayer->psprites ; i<NUMPSPRITES ; i++,psp++)
if (psp->state)
R_DrawPSprite (psp);
}
/*
========================
=
= R_SortVisSprites
=
========================
*/
vissprite_t vsprsortedhead;
void R_SortVisSprites (void)
{
int i, count;
vissprite_t *ds, *best;
vissprite_t unsorted;
fixed_t bestscale;
count = vissprite_p - vissprites;
unsorted.next = unsorted.prev = &unsorted;
if (!count)
return;
for (ds=vissprites ; ds<vissprite_p ; ds++)
{
ds->next = ds+1;
ds->prev = ds-1;
}
vissprites[0].prev = &unsorted;
unsorted.next = &vissprites[0];
(vissprite_p-1)->next = &unsorted;
unsorted.prev = vissprite_p-1;
//
// pull the vissprites out by scale
//
best = 0; // shut up the compiler warning
vsprsortedhead.next = vsprsortedhead.prev = &vsprsortedhead;
for (i=0 ; i<count ; i++)
{
bestscale = MAXINT;
for (ds=unsorted.next ; ds!= &unsorted ; ds=ds->next)
{
if (ds->scale < bestscale)
{
bestscale = ds->scale;
best = ds;
}
}
best->next->prev = best->prev;
best->prev->next = best->next;
best->next = &vsprsortedhead;
best->prev = vsprsortedhead.prev;
vsprsortedhead.prev->next = best;
vsprsortedhead.prev = best;
}
}
/*
========================
=
= R_DrawSprite
=
========================
*/
void R_DrawSprite (vissprite_t *spr)
{
drawseg_t *ds;
short clipbot[SCREENWIDTH], cliptop[SCREENWIDTH];
int x, r1, r2;
fixed_t scale, lowscale;
int silhouette;
for (x = spr->x1 ; x<=spr->x2 ; x++)
clipbot[x] = cliptop[x] = -2;
//
// scan drawsegs from end to start for obscuring segs
// the first drawseg that has a greater scale is the clip seg
//
for (ds=ds_p-1 ; ds >= drawsegs ; ds--)
{
//
// determine if the drawseg obscures the sprite
//
if (ds->x1 > spr->x2 || ds->x2 < spr->x1 ||
(!ds->silhouette && !ds->maskedtexturecol) )
continue; // doesn't cover sprite
r1 = ds->x1 < spr->x1 ? spr->x1 : ds->x1;
r2 = ds->x2 > spr->x2 ? spr->x2 : ds->x2;
if (ds->scale1 > ds->scale2)
{
lowscale = ds->scale2;
scale = ds->scale1;
}
else
{
lowscale = ds->scale1;
scale = ds->scale2;
}
if (scale < spr->scale || ( lowscale < spr->scale
&& !R_PointOnSegSide (spr->gx, spr->gy, ds->curline) ) )
{
if (ds->maskedtexturecol) // masked mid texture
R_RenderMaskedSegRange (ds, r1, r2);
continue; // seg is behind sprite
}
//
// clip this piece of the sprite
//
silhouette = ds->silhouette;
if (spr->gz >= ds->bsilheight)
silhouette &= ~SIL_BOTTOM;
if (spr->gzt <= ds->tsilheight)
silhouette &= ~SIL_TOP;
if (silhouette == 1)
{ // bottom sil
for (x=r1 ; x<=r2 ; x++)
if (clipbot[x] == -2)
clipbot[x] = ds->sprbottomclip[x];
}
else if (silhouette == 2)
{ // top sil
for (x=r1 ; x<=r2 ; x++)
if (cliptop[x] == -2)
cliptop[x] = ds->sprtopclip[x];
}
else if (silhouette == 3)
{ // both
for (x=r1 ; x<=r2 ; x++)
{
if (clipbot[x] == -2)
clipbot[x] = ds->sprbottomclip[x];
if (cliptop[x] == -2)
cliptop[x] = ds->sprtopclip[x];
}
}
}
//
// all clipping has been performed, so draw the sprite
//
// check for unclipped columns
for (x = spr->x1 ; x<=spr->x2 ; x++)
{
if (clipbot[x] == -2)
clipbot[x] = viewheight;
if (cliptop[x] == -2)
cliptop[x] = -1;
}
mfloorclip = clipbot;
mceilingclip = cliptop;
R_DrawVisSprite (spr, spr->x1, spr->x2);
}
/*
========================
=
= R_DrawMasked
=
========================
*/
void R_DrawMasked (void)
{
vissprite_t *spr;
drawseg_t *ds;
R_SortVisSprites ();
if (vissprite_p > vissprites)
{
// draw all vissprites back to front
for (spr = vsprsortedhead.next ; spr != &vsprsortedhead
; spr=spr->next)
R_DrawSprite (spr);
}
//
// render any remaining masked mid textures
//
for (ds=ds_p-1 ; ds >= drawsegs ; ds--)
if (ds->maskedtexturecol)
R_RenderMaskedSegRange (ds, ds->x1, ds->x2);
//
// draw the psprites on top of everything
//
// Added for the sideviewing with an external device
if (viewangleoffset <= 1024<<ANGLETOFINESHIFT || viewangleoffset >=
-1024<<ANGLETOFINESHIFT)
{ // don't draw on side views
R_DrawPlayerSprites ();
}
// if (!viewangleoffset) // don't draw on side views
// R_DrawPlayerSprites ();
}
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