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Merge branch 'recap-flip-spin' into 'next'

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Fix interpolation when curling up or scaling while flipped

Closes #983

See merge request STJr/SRB2!1979
This commit is contained in:
sphere 2023-08-20 17:16:53 +00:00
commit 5dba53009e
5 changed files with 20 additions and 5 deletions
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5
src/hardware/hw_main.c
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@ -5378,7 +5378,10 @@ static void HWR_ProjectSprite(mobj_t *thing)
if (vflip)
{
gz = FIXED_TO_FLOAT(interp.z + thing->height) - (FIXED_TO_FLOAT(spr_topoffset) * this_yscale);
if (thing->scale != thing->old_scale) // Interpolate heights in reverse gravity when scaling mobjs
gz = FIXED_TO_FLOAT(interp.z + FixedMul(thing->height, FixedDiv(interp.scale, thing->scale))) - (FIXED_TO_FLOAT(spr_topoffset) * this_yscale);
else
gz = FIXED_TO_FLOAT(interp.z + thing->height) - (FIXED_TO_FLOAT(spr_topoffset) * this_yscale);
gzt = gz + (FIXED_TO_FLOAT(spr_height) * this_yscale);
}
else

7
src/hardware/hw_md2.c
View file

@ -1585,7 +1585,12 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
p.y = FIXED_TO_FLOAT(interp.y)+md2->offset;
if (flip)
p.z = FIXED_TO_FLOAT(interp.z + spr->mobj->height);
{
if (spr->mobj->scale != spr->mobj->old_scale) // Interpolate heights in reverse gravity when scaling mobjs
p.z = FIXED_TO_FLOAT(interp.z + FixedMul(spr->mobj->height, FixedDiv(interp.scale, spr->mobj->scale)));
else
p.z = FIXED_TO_FLOAT(interp.z + spr->mobj->height);
}
else
p.z = FIXED_TO_FLOAT(interp.z);

2
src/p_mobj.c
View file

@ -12617,7 +12617,7 @@ static boolean P_SetupNiGHTSDrone(mapthing_t *mthing, mobj_t *mobj)
dronemangoaldiff = max(mobjinfo[MT_NIGHTSDRONE_MAN].height - mobjinfo[MT_NIGHTSDRONE_GOAL].height, 0);
if (flip && mobj->height != oldheight)
P_MoveOrigin(mobj, mobj->x, mobj->y, mobj->z - (mobj->height - oldheight));
P_SetOrigin(mobj, mobj->x, mobj->y, mobj->z - (mobj->height - oldheight));
if (!flip)
{

5
src/p_user.c
View file

@ -8717,7 +8717,10 @@ void P_MovePlayer(player_t *player)
player->mo->height = P_GetPlayerHeight(player);
if (player->mo->eflags & MFE_VERTICALFLIP && player->mo->height != oldheight) // adjust z height for reverse gravity, similar to how it's done for scaling
player->mo->z -= player->mo->height - oldheight;
{
player->mo->z -= player->mo->height - oldheight;
player->mo->old_z -= player->mo->height - oldheight; // Snap the Z adjustment, while keeping the Z interpolation
}
// Crush test...
if ((player->mo->ceilingz - player->mo->floorz < player->mo->height)

6
src/r_things.c
View file

@ -2114,7 +2114,11 @@ static void R_ProjectSprite(mobj_t *thing)
// When vertical flipped, draw sprites from the top down, at least as far as offsets are concerned.
// sprite height - sprite topoffset is the proper inverse of the vertical offset, of course.
// remember gz and gzt should be seperated by sprite height, not thing height - thing height can be shorter than the sprite itself sometimes!
gz = interp.z + oldthing->height - FixedMul(spr_topoffset, FixedMul(spriteyscale, this_scale));
if (oldthing->scale != oldthing->old_scale) // Interpolate heights in reverse gravity when scaling mobjs
gz = interp.z + FixedMul(oldthing->height, FixedDiv(interp.scale, oldthing->scale)) - FixedMul(spr_topoffset, FixedMul(spriteyscale, this_scale));
else
gz = interp.z + oldthing->height - FixedMul(spr_topoffset, FixedMul(spriteyscale, this_scale));
gzt = gz + FixedMul(spr_height, FixedMul(spriteyscale, this_scale));
}
else