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large dispoffset values no longer cause sprites to be distorted

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more detailed description: vissprites now store dispoffset in a separate variable from (y)scale, and uses it to influence order between sprites without it affecting the actual drawing of the sprites themselves
This commit is contained in:
Monster Iestyn 2015-11-23 16:39:32 +00:00 committed by Inuyasha
parent fea0a9577a
commit 049689334d
2 changed files with 15 additions and 3 deletions
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17
src/r_things.c
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@ -1257,7 +1257,8 @@ static void R_ProjectSprite(mobj_t *thing)
vis = R_NewVisSprite();
vis->heightsec = heightsec; //SoM: 3/17/2000
vis->mobjflags = thing->flags;
vis->scale = yscale + thing->info->dispoffset; //<<detailshift;
vis->scale = yscale; //<<detailshift;
vis->dispoffset = thing->info->dispoffset; // Monster Iestyn: 23/11/15
vis->gx = thing->x;
vis->gy = thing->y;
vis->gz = gz;
@ -1473,6 +1474,7 @@ static void R_ProjectPrecipitationSprite(precipmobj_t *thing)
// store information in a vissprite
vis = R_NewVisSprite();
vis->scale = yscale; //<<detailshift;
vis->dispoffset = 0; // Monster Iestyn: 23/11/15
vis->gx = thing->x;
vis->gy = thing->y;
vis->gz = gz;
@ -1624,6 +1626,7 @@ void R_SortVisSprites(void)
vissprite_t *best = NULL;
vissprite_t unsorted;
fixed_t bestscale;
INT32 bestdispoffset;
if (!visspritecount)
return;
@ -1654,12 +1657,19 @@ void R_SortVisSprites(void)
vsprsortedhead.next = vsprsortedhead.prev = &vsprsortedhead;
for (i = 0; i < visspritecount; i++)
{
bestscale = INT32_MAX;
bestscale = bestdispoffset = INT32_MAX;
for (ds = unsorted.next; ds != &unsorted; ds = ds->next)
{
if (ds->scale < bestscale)
{
bestscale = ds->scale;
bestdispoffset = ds->dispoffset;
best = ds;
}
// order visprites of same scale by dispoffset, smallest first
else if (ds->scale == bestscale && ds->dispoffset < bestdispoffset)
{
bestdispoffset = ds->dispoffset;
best = ds;
}
}
@ -1911,7 +1921,8 @@ static void R_CreateDrawNodes(void)
if (r2->sprite->szt > rover->sz || r2->sprite->sz < rover->szt)
continue;
if (r2->sprite->scale > rover->scale)
if (r2->sprite->scale > rover->scale
|| (r2->sprite->scale == rover->scale && r2->sprite->dispoffset > rover->dispoffset))
{
entry = R_CreateDrawNode(NULL);
(entry->prev = r2->prev)->next = entry;

1
src/r_things.h
View file

@ -162,6 +162,7 @@ typedef struct vissprite_s
boolean precip;
boolean vflip; // Flip vertically
boolean isScaled;
INT32 dispoffset; // copy of info->dispoffset, affects ordering but not drawing
} vissprite_t;
// A drawnode is something that points to a 3D floor, 3D side, or masked