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Added some notes related to FEETADJUST for reference, made another tweak

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This commit is contained in:
Monster Iestyn 2023-09-21 16:13:55 +01:00
parent ee0bab2941
commit 340eee8691
2 changed files with 7 additions and 4 deletions
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6
src/r_patchrotation.c
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@ -10,7 +10,7 @@
/// \brief Patch rotation.
#include "r_patchrotation.h"
#include "r_things.h" // FEETADJUST
#include "r_things.h" // FEETADJUST (todo: is this needed anymore? -- Monster Iestyn 21 Sep 2023 )
#include "z_zone.h"
#include "w_wad.h"
#include "r_main.h" // R_PointToAngle
@ -69,15 +69,13 @@ patch_t *Patch_GetRotatedSprite(
boolean flip,
void *info, INT32 rotationangle)
{
rotsprite_t *rotsprite;
rotsprite_t *rotsprite = sprite->rotated[spriteangle];
spriteinfo_t *sprinfo = (spriteinfo_t *)info;
INT32 idx = rotationangle;
if (rotationangle < 1 || rotationangle >= ROTANGLES)
return NULL;
rotsprite = sprite->rotated[spriteangle];
if (rotsprite == NULL)
{
rotsprite = RotatedPatch_Create(ROTANGLES);

5
src/r_things.c
View file

@ -337,6 +337,11 @@ boolean R_AddSingleSpriteDef(const char *sprname, spritedef_t *spritedef, UINT16
spritecachedinfo[numspritelumps].height = height<<FRACBITS;
// BP: we cannot use special tric in hardware mode because feet in ground caused by z-buffer
// Monster Iestyn (21 Sep 2023): the above comment no longer makes sense in context!!! So I give an explanation here!
// FEETADJUST was originally an OpenGL-exclusive hack from Doom Legacy to avoid the player's feet being clipped as
// a result of rendering partially under the ground, but sometime before SRB2 2.1's release this was changed to apply
// to the software renderer as well.
// TODO: kill FEETADJUST altogether somehow and somehow fix OpenGL not to clip sprites that are partially underground (if possible)?
spritecachedinfo[numspritelumps].topoffset += FEETADJUST;
//----------------------------------------------------