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OGL sprite support

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This commit is contained in:
Sally Coolatta 2020-05-15 23:49:17 -04:00
parent 719d4702c1
commit ff756ae35c
1 changed files with 21 additions and 13 deletions
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34
src/hardware/hw_main.c
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@ -2831,6 +2831,10 @@ static boolean HWR_DoCulling(line_t *cullheight, line_t *viewcullheight, float v
static void HWR_DrawDropShadow(mobj_t *thing, fixed_t scale)
{
const fixed_t thingxpos = thing->x + thing->sprxoff;
const fixed_t thingypos = thing->y + thing->spryoff;
const fixed_t thingzpos = thing->z + thing->sprzoff;
GLPatch_t *gpatch;
FOutVector shadowVerts[4];
FSurfaceInfo sSurf;
@ -2848,7 +2852,7 @@ static void HWR_DrawDropShadow(mobj_t *thing, fixed_t scale)
pslope_t *floorslope;
floorz = R_GetShadowZ(thing, &floorslope);
floordiff = abs(thing->z - floorz);
floordiff = abs(thingzpos - floorz);
alpha = floordiff / (4*FRACUNIT) + 75;
if (alpha >= 255) return;
@ -2872,8 +2876,8 @@ static void HWR_DrawDropShadow(mobj_t *thing, fixed_t scale)
scalemul = FixedMul(scalemul, (thing->radius*2) / gpatch->height);
fscale = FIXED_TO_FLOAT(scalemul);
fx = FIXED_TO_FLOAT(thing->x);
fy = FIXED_TO_FLOAT(thing->y);
fx = FIXED_TO_FLOAT(thingxpos);
fy = FIXED_TO_FLOAT(thingypos);
// 3--2
// | /|
@ -4096,6 +4100,10 @@ void HWR_AddSprites(sector_t *sec)
// BP why not use xtoviexangle/viewangletox like in bsp ?....
void HWR_ProjectSprite(mobj_t *thing)
{
const fixed_t thingxpos = thing->x + thing->sprxoff;
const fixed_t thingypos = thing->y + thing->spryoff;
const fixed_t thingzpos = thing->z + thing->sprzoff;
gr_vissprite_t *vis;
float tr_x, tr_y;
float tz;
@ -4120,8 +4128,8 @@ void HWR_ProjectSprite(mobj_t *thing)
this_scale = FIXED_TO_FLOAT(thing->scale);
// transform the origin point
tr_x = FIXED_TO_FLOAT(thing->x) - gr_viewx;
tr_y = FIXED_TO_FLOAT(thing->y) - gr_viewy;
tr_x = FIXED_TO_FLOAT(thingxpos) - gr_viewx;
tr_y = FIXED_TO_FLOAT(thingypos) - gr_viewy;
// rotation around vertical axis
tz = (tr_x * gr_viewcos) + (tr_y * gr_viewsin);
@ -4131,8 +4139,8 @@ void HWR_ProjectSprite(mobj_t *thing)
return;
// The above can stay as it works for cutting sprites that are too close
tr_x = FIXED_TO_FLOAT(thing->x);
tr_y = FIXED_TO_FLOAT(thing->y);
tr_x = FIXED_TO_FLOAT(thingxpos);
tr_y = FIXED_TO_FLOAT(thingypos);
// decide which patch to use for sprite relative to player
#ifdef RANGECHECK
@ -4168,9 +4176,9 @@ void HWR_ProjectSprite(mobj_t *thing)
#endif
if (thing->player)
ang = R_PointToAngle (thing->x, thing->y) - thing->player->frameangle;
ang = R_PointToAngle (thingxpos, thingypos) - thing->player->frameangle;
else
ang = R_PointToAngle (thing->x, thing->y) - thing->angle;
ang = R_PointToAngle (thingxpos, thingypos) - thing->angle;
if (sprframe->rotate == SRF_SINGLE)
{
@ -4242,12 +4250,12 @@ void HWR_ProjectSprite(mobj_t *thing)
if (vflip)
{
gz = FIXED_TO_FLOAT(thing->z+thing->height) - FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gz = FIXED_TO_FLOAT(thingzpos + thing->height) - FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gzt = gz + FIXED_TO_FLOAT(spritecachedinfo[lumpoff].height) * this_scale;
}
else
{
gzt = FIXED_TO_FLOAT(thing->z) + FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gzt = FIXED_TO_FLOAT(thingzpos) + FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gz = gzt - FIXED_TO_FLOAT(spritecachedinfo[lumpoff].height) * this_scale;
}
@ -4266,12 +4274,12 @@ void HWR_ProjectSprite(mobj_t *thing)
if (heightsec != -1 && phs != -1) // only clip things which are in special sectors
{
if (gr_viewz < FIXED_TO_FLOAT(sectors[phs].floorheight) ?
FIXED_TO_FLOAT(thing->z) >= FIXED_TO_FLOAT(sectors[heightsec].floorheight) :
FIXED_TO_FLOAT(thingzpos) >= FIXED_TO_FLOAT(sectors[heightsec].floorheight) :
gzt < FIXED_TO_FLOAT(sectors[heightsec].floorheight))
return;
if (gr_viewz > FIXED_TO_FLOAT(sectors[phs].ceilingheight) ?
gzt < FIXED_TO_FLOAT(sectors[heightsec].ceilingheight) && gr_viewz >= FIXED_TO_FLOAT(sectors[heightsec].ceilingheight) :
FIXED_TO_FLOAT(thing->z) >= FIXED_TO_FLOAT(sectors[heightsec].ceilingheight))
FIXED_TO_FLOAT(thingzpos) >= FIXED_TO_FLOAT(sectors[heightsec].ceilingheight))
return;
}