Polymodes: make flipping closer to classic.

This fixes cases A and B in test_tileoffsets.map.

git-svn-id: https://svn.eduke32.com/eduke32@3778 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2013-05-16 21:54:56 +00:00
parent 64406cc25c
commit 946d207c56
2 changed files with 22 additions and 22 deletions

View file

@ -3546,7 +3546,7 @@ static inline void polymer_scansprites(int16_t sectnum, spritetype* localtsprit
void polymer_updatesprite(int32_t snum)
{
int32_t curpicnum, xsize, ysize, tilexoff, tileyoff, xoff, yoff, i, j, cs;
int32_t curpicnum, xsize, ysize, tilexoff, tileyoff, xoff, yoff, i, j;
spritetype *tspr = tspriteptr[snum];
float xratio, yratio, ang, f;
float spos[3];
@ -3554,12 +3554,13 @@ void polymer_updatesprite(int32_t snum)
uint8_t flipu, flipv;
_prsprite *s;
const uint32_t cs = tspr->cstat;
const uint32_t alignmask = (cs & SPR_ALIGN_MASK);
if (pr_verbosity >= 3) OSD_Printf("PR : Updating sprite %i...\n", snum);
if (tspr->owner < 0 || tspr->picnum < 0) return;
cs = tspr->cstat;
if (prsprites[tspr->owner] == NULL)
{
prsprites[tspr->owner] = (_prsprite *) Bcalloc(sizeof(_prsprite), 1);
@ -3661,27 +3662,25 @@ void polymer_updatesprite(int32_t snum)
inbuffer = vertsprite;
{
// Initially set flipu and flipv.
const uint8_t xflip = !!(tspr->cstat & SPR_XFLIP);
const uint8_t yflip = !!(tspr->cstat & SPR_YFLIP);
const uint8_t flooraligned = ((tspr->cstat & SPR_ALIGN_MASK)==SPR_FLOOR);
const uint8_t xflip = !!(cs & SPR_XFLIP);
const uint8_t yflip = !!(cs & SPR_YFLIP);
const uint8_t flooraligned = (alignmask==SPR_FLOOR);
// Initially set flipu and flipv.
flipu = (xflip ^ flooraligned);
flipv = (yflip && !flooraligned);
}
if (pr_billboardingmode && (tspr->cstat & SPR_ALIGN_MASK)==0)
if (pr_billboardingmode && alignmask==0)
{
// do surgery on the face tspr to make it look like a wall sprite
tspr->cstat |= 16;
tspr->ang = (viewangle + 1024) & 2047;
}
if (flipu) {
if (flipu)
xoff = -xoff;
}
if (flipv) {
if (yflip && alignmask!=0)
yoff = -yoff;
}
@ -3743,7 +3742,7 @@ void polymer_updatesprite(int32_t snum)
polymer_computeplane(&s->plane);
if ((cs & SPR_ALIGN_MASK) && (pr_vbos > 0))
if (alignmask && (pr_vbos > 0))
{
bglBindBufferARB(GL_ARRAY_BUFFER_ARB, s->plane.vbo);
bglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, 4 * sizeof(GLfloat) * 5, s->plane.buffer);
@ -3755,7 +3754,7 @@ void polymer_updatesprite(int32_t snum)
s->plane.vbo = 0;
}
if (tspr->cstat & SPR_ALIGN_MASK)
if (alignmask)
{
int32_t curpriority = 0;

View file

@ -3835,7 +3835,8 @@ void polymost_drawsprite(int32_t snum)
case 0: //Face sprite
//Project 3D to 2D
if (globalorientation&4) xoff = -xoff;
if (globalorientation&8) yoff = -yoff;
// NOTE: yoff not negated not for y flipping, unlike wall and floor
// aligned sprites.
sx0 = (float)(tspr->x-globalposx);
sy0 = (float)(tspr->y-globalposy);