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Shadow optimisation

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Done like Overlays, goes through a list of shadows ONLY
This commit is contained in:
Sryder 2018-03-13 05:58:57 +00:00
parent f26c96175d
commit 0483c882cd
1 changed files with 88 additions and 41 deletions
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129
src/p_mobj.c
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@ -47,6 +47,7 @@ consvar_t cv_splats = {"splats", "On", CV_SAVE, CV_OnOff, NULL, 0, NULL, NULL, 0
actioncache_t actioncachehead;
static mobj_t *overlaycap = NULL;
static mobj_t *shadowcap = NULL;
void P_InitCachedActions(void)
{
@ -6246,62 +6247,96 @@ static void P_RemoveOverlay(mobj_t *thing)
void P_RunShadows(void)
{
thinker_t * th;
mobj_t * mobj;
mobj_t *mobj;
mobj_t *next;
for (th = thinkercap.next; th != &thinkercap; th = th->next)
for (mobj = shadowcap; mobj; mobj = next)
{
if (th->function.acp1 != (actionf_p1)P_MobjThinker)
continue;
next = mobj->hnext;
P_SetTarget(&mobj->hnext, NULL);
mobj = (mobj_t *)th;
if (!mobj->target)
continue; // shouldn't you already be dead?
if (mobj->type != MT_SHADOW)
continue;
if ((mobj->target->flags2 & MF2_DONTDRAW)
|| (((mobj->target->eflags & MFE_VERTICALFLIP) && mobj->target->z+mobj->target->height > mobj->target->ceilingz)
|| (!(mobj->target->eflags & MFE_VERTICALFLIP) && mobj->target->z < mobj->target->floorz)))
mobj->flags2 |= MF2_DONTDRAW;
else
mobj->flags2 &= ~MF2_DONTDRAW;
if (mobj->target)
// First scale to the same radius
P_SetScale(mobj, FixedDiv(mobj->target->radius, mobj->info->radius));
P_TeleportMove(mobj, mobj->target->x, mobj->target->y, mobj->target->z);
if (mobj->floorz < mobj->z)
{
if ((mobj->target->flags2 & MF2_DONTDRAW)
|| (((mobj->target->eflags & MFE_VERTICALFLIP) && mobj->target->z+mobj->target->height > mobj->target->ceilingz)
|| (!(mobj->target->eflags & MFE_VERTICALFLIP) && mobj->target->z < mobj->target->floorz)))
mobj->flags2 |= MF2_DONTDRAW;
else
mobj->flags2 &= ~MF2_DONTDRAW;
INT32 i;
fixed_t prevz;
// First scale to the same radius
P_SetScale(mobj, FixedDiv(mobj->target->radius, mobj->info->radius));
mobj->z = mobj->floorz;
P_TeleportMove(mobj, mobj->target->x, mobj->target->y, mobj->target->z);
if (mobj->floorz < mobj->z)
for (i = 0; i < MAXFFLOORS; i++)
{
INT32 i;
fixed_t prevz;
prevz = mobj->z;
// Now scale again based on height difference
P_SetScale(mobj, FixedDiv(mobj->scale, max(FRACUNIT, ((mobj->target->z-mobj->z)/200)+FRACUNIT)));
// Check new position to see if you should still be on that ledge
P_TeleportMove(mobj, mobj->target->x, mobj->target->y, mobj->z);
mobj->z = mobj->floorz;
for (i = 0; i < MAXFFLOORS; i++)
{
prevz = mobj->z;
// Now scale again based on height difference
P_SetScale(mobj, FixedDiv(mobj->scale, max(FRACUNIT, ((mobj->target->z-mobj->z)/200)+FRACUNIT)));
// Check new position to see if you should still be on that ledge
P_TeleportMove(mobj, mobj->target->x, mobj->target->y, mobj->z);
mobj->z = mobj->floorz;
if (mobj->z == prevz)
break;
}
if (mobj->z == prevz)
break;
}
}
else
{
P_KillMobj(mobj, NULL, NULL);
}
}
P_SetTarget(&shadowcap, NULL);
}
// called whenever shadows think
// It must be done this way so that level changes don't break when the shadowcap can't be reset
static void P_AddShadow(mobj_t *thing)
{
I_Assert(thing != NULL);
if (shadowcap == NULL)
P_SetTarget(&shadowcap, thing);
else {
mobj_t *mo;
for (mo = shadowcap; mo && mo->hnext; mo = mo->hnext)
;
I_Assert(mo != NULL);
I_Assert(mo->hnext == NULL);
P_SetTarget(&mo->hnext, thing);
}
P_SetTarget(&thing->hnext, NULL);
}
// Called only when MT_SHADOW (or anything else in the shadowcap list) is removed.
// Keeps the hnext list from corrupting.
static void P_RemoveShadow(mobj_t *thing)
{
mobj_t *mo;
if (shadowcap == thing)
{
P_SetTarget(&shadowcap, thing->hnext);
P_SetTarget(&thing->hnext, NULL);
return;
}
for (mo = shadowcap; mo; mo = mo->hnext)
if (mo->hnext == thing)
{
P_SetTarget(&mo->hnext, thing->hnext);
P_SetTarget(&thing->hnext, NULL);
return;
}
}
void A_BossDeath(mobj_t *mo);
@ -6500,6 +6535,15 @@ void P_MobjThinker(mobj_t *mobj)
else
P_AddOverlay(mobj);
break;
case MT_SHADOW:
if (!mobj->target)
{
P_RemoveMobj(mobj);
return;
}
else
P_AddShadow(mobj);
break;
case MT_BLACKORB:
case MT_WHITEORB:
case MT_GREENORB:
@ -9007,6 +9051,9 @@ void P_RemoveMobj(mobj_t *mobj)
if (mobj->type == MT_OVERLAY)
P_RemoveOverlay(mobj);
if (mobj->type == MT_SHADOW)
P_RemoveShadow(mobj);
mobj->health = 0; // Just because
// unlink from sector and block lists