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Courteousy of fickle, an adjustment to papersprite rendering that prevents the object's x1 and x2 being slightly off where they should be. Not perfect, but absolutely better than it was! 

Also, tweak the Minecart segment spawning position, since this was originally placed based on the awkward rendering.
This commit is contained in:
toaster 2019-11-24 16:42:13 +00:00
parent d99e3f8337
commit 3594623891
2 changed files with 39 additions and 25 deletions
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2
src/p_mobj.c
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@ -7082,7 +7082,7 @@ static void P_SpawnMinecartSegments(mobj_t *mobj, boolean mode)
seg = P_SpawnMobj(x, y, z, MT_MINECARTSEG);
P_SetMobjState(seg, (statenum_t)(S_MINECARTSEG_FRONT + i));
if (i >= 2)
seg->extravalue1 = (i == 2) ? -18 : 18;
seg->extravalue1 = (i == 2) ? -20 : 20;
else
{
seg->extravalue2 = (i == 0) ? 24 : -24;

62
src/r_things.c
View File

@ -1137,8 +1137,6 @@ static void R_ProjectSprite(mobj_t *thing)
UINT32 rollangle = AngleFixed(arollangle)>>FRACBITS;
#endif
fixed_t ang_scale = FRACUNIT;
// transform the origin point
tr_x = thing->x - viewx;
tr_y = thing->y - viewy;
@ -1223,8 +1221,6 @@ static void R_ProjectSprite(mobj_t *thing)
if (sprframe->rotate != SRF_SINGLE || papersprite)
{
ang = R_PointToAngle (thing->x, thing->y) - (thing->player ? thing->player->drawangle : thing->angle);
if (papersprite)
ang_scale = abs(FINESINE(ang>>ANGLETOFINESHIFT));
}
if (sprframe->rotate == SRF_SINGLE)
@ -1286,24 +1282,11 @@ static void R_ProjectSprite(mobj_t *thing)
else
offset = -spr_offset;
offset = FixedMul(offset, this_scale);
tx += FixedMul(offset, ang_scale);
x1 = (centerxfrac + FixedMul (tx,xscale)) >>FRACBITS;
// off the right side?
if (x1 > viewwidth)
return;
offset2 = FixedMul(spr_width, this_scale);
tx += FixedMul(offset2, ang_scale);
x2 = ((centerxfrac + FixedMul (tx,xscale)) >> FRACBITS) - (papersprite ? 2 : 1);
// off the left side
if (x2 < 0)
return;
if (papersprite)
{
fixed_t yscale2, cosmul, sinmul, tz2;
fixed_t xscale2, yscale2, cosmul, sinmul, tz2;
INT32 range;
if (ang >= ANGLE_180)
@ -1323,6 +1306,16 @@ static void R_ProjectSprite(mobj_t *thing)
yscale = FixedDiv(projectiony, tz);
if (yscale < 64) return; // Fix some funky visuals
gxt = -FixedMul(tr_x, viewsin);
gyt = FixedMul(tr_y, viewcos);
tx = -(gyt + gxt);
xscale = FixedDiv(projection, tz);
x1 = (centerxfrac + FixedMul(tx,xscale))>>FRACBITS;
// off the right side?
if (x1 > viewwidth)
return;
tr_x += FixedMul(offset2, cosmul);
tr_y += FixedMul(offset2, sinmul);
gxt = FixedMul(tr_x, viewcos);
@ -1331,15 +1324,25 @@ static void R_ProjectSprite(mobj_t *thing)
yscale2 = FixedDiv(projectiony, tz2);
if (yscale2 < 64) return; // ditto
gxt = -FixedMul(tr_x, viewsin);
gyt = FixedMul(tr_y, viewcos);
tx = -(gyt + gxt);
xscale2 = FixedDiv(projection, tz2);
x2 = (centerxfrac + FixedMul(tx,xscale2))>>FRACBITS; x2--;
// off the left side
if (x2 < 0)
return;
if (max(tz, tz2) < FixedMul(MINZ, this_scale)) // non-papersprite clipping is handled earlier
return;
if (x2 > x1)
range = (x2 - x1);
else
if ((range = x2 - x1) <= 0)
range = 1;
scalestep = (yscale2 - yscale)/range ?: 1;
scalestep = (yscale2 - yscale)/range;
scalestep = scalestep ? scalestep : 1;
xscale = FixedDiv(range<<FRACBITS, abs(offset2))+1;
// The following two are alternate sorting methods which might be more applicable in some circumstances. TODO - maybe enable via MF2?
// sortscale = max(yscale, yscale2);
@ -1349,9 +1352,20 @@ static void R_ProjectSprite(mobj_t *thing)
{
scalestep = 0;
yscale = sortscale;
}
tx += offset;
x1 = (centerxfrac + FixedMul(tx,xscale))>>FRACBITS;
xscale = FixedMul(xscale, ang_scale);
// off the right side?
if (x1 > viewwidth)
return;
tx += offset2;
x2 = ((centerxfrac + FixedMul(tx,xscale))>>FRACBITS); x2--;
// off the left side
if (x2 < 0)
return;
}
if ((thing->flags2 & MF2_LINKDRAW) && thing->tracer) // toast 16/09/16 (SYMMETRY)
{