mirror of
https://github.com/ZDoom/Raze.git
synced 2024-12-14 22:51:11 +00:00
27c313d74e
Mainly to get it out of the way. This needs to be redone later in a more serialization-friendly way.
142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
//-------------------------------------------------------------------------
|
|
/*
|
|
Copyright (C) 1997, 2005 - 3D Realms Entertainment
|
|
|
|
This file is part of Shadow Warrior version 1.2
|
|
|
|
Shadow Warrior is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
Original Source: 1997 - Frank Maddin and Jim Norwood
|
|
Prepared for public release: 03/28/2005 - Charlie Wiederhold, 3D Realms
|
|
*/
|
|
//-------------------------------------------------------------------------
|
|
|
|
#include "ns.h"
|
|
|
|
#include "interp.h"
|
|
#include "m_fixed.h"
|
|
|
|
#define (MAXINTERPOLATIONS 16384 + 256)
|
|
static int recursions = 0;
|
|
static int numinterpolations = 0;
|
|
|
|
// Not used yet. The entire interpolation feature as-is is highly serialization unfriendly because it only stores pointers without context, meaning there is no safe way to store them in a savegame without constantly risking breakage.
|
|
|
|
// Todo: This really needs to be made serialization friendly
|
|
struct Interpolation
|
|
{
|
|
int oldipos;
|
|
int bakipos;
|
|
void *curipos;
|
|
bool isshort;
|
|
};
|
|
|
|
static Interpolation interpolations[MAXINTERPOLATIONS];
|
|
|
|
|
|
void setinterpolation(void *posptr, bool isshort)
|
|
{
|
|
if (numinterpolations >= MAXINTERPOLATIONS)
|
|
return;
|
|
|
|
for (int i = numinterpolations - 1; i >= 0; i--)
|
|
{
|
|
if (interpolations[i].curipos == posptr)
|
|
return;
|
|
}
|
|
|
|
interpolations[numinterpolations].curipos = posptr;
|
|
interpolations[numinterpolations].oldipos = *posptr;
|
|
numinterpolations++;
|
|
}
|
|
|
|
void setinterpolation(int *posptr)
|
|
{
|
|
setinterpolation(posptr, false);
|
|
}
|
|
|
|
// only used by SW to interpolate floorheinum and ceilingheinum
|
|
void setinterpolation(short *posptr)
|
|
{
|
|
setinterpolation(posptr, true);
|
|
}
|
|
|
|
void stopinterpolation(void *posptr)
|
|
{
|
|
for (int i = numinterpolations - 1; i >= 0; i--)
|
|
{
|
|
if (curipos[i] == posptr)
|
|
{
|
|
numinterpolations--;
|
|
interpolations[i] = interpolations[numinterpolations];
|
|
}
|
|
}
|
|
}
|
|
|
|
void updateinterpolations(void) // Stick at beginning of domovethings
|
|
{
|
|
int i;
|
|
|
|
for (int i = numinterpolations - 1; i >= 0; i--)
|
|
interpolations[i].oldipos = interpolations[i].isshort? *(short*)interpolations[i].curipos : *(int*)interpolations[i].curipos;
|
|
}
|
|
|
|
// must call restore for every do interpolations
|
|
// make sure you don't exit
|
|
void dointerpolations(int smoothratio) // Stick at beginning of drawscreen
|
|
{
|
|
if (recursions++)
|
|
return;
|
|
|
|
int i, j, odelta, ndelta;
|
|
|
|
ndelta = 0;
|
|
j = 0;
|
|
|
|
for (i = numinterpolations - 1; i >= 0; i--)
|
|
{
|
|
bakipos[i] = *curipos[i];
|
|
|
|
odelta = ndelta;
|
|
ndelta = (*curipos[i]) - oldipos[i];
|
|
|
|
if (odelta != ndelta)
|
|
j = FixedMul(ndelta, smoothratio);
|
|
|
|
*curipos[i] = oldipos[i] + j;
|
|
}
|
|
}
|
|
|
|
void restoreinterpolations(bool force) // Stick at end of drawscreen
|
|
{
|
|
int i;
|
|
|
|
if (!force && --recursions)
|
|
return;
|
|
|
|
recursions = 0; // if interpolations are forcibly restored, the recursion counter must also be reset.
|
|
for (i = numinterpolations - 1; i >= 0; i--)
|
|
*curipos[i] = bakipos[i];
|
|
}
|
|
|
|
void togglespriteinterpolation(spritetype *sp, int set)
|
|
{
|
|
auto func = set ? setinterpolation : stopinterpolation;
|
|
func(&sp->x);
|
|
func(&sp->y);
|
|
func(&sp->z);
|
|
}
|
|
|