raze/source/sw/src/interp.cpp

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//-------------------------------------------------------------------------
/*
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 "compat.h"
#include "pragmas.h"
#include "interp.h"
BEGIN_SW_NS
Revert "SW: Improve main game loop." This reverts commit e878c5bab8bc15e00e7a999a018f59ba4980505c. Revert "SW: Use Q16.16 for horiz." This reverts commit f07a0ae01ef8340c4b32c2b110bcb1431ae93c4f. Revert "SW: Use Q16.16 for angle." This reverts commit 1ecc74c2ecd8bb310c0099249ce148a28a73e26a. Revert "SW: Minor repairs for Q16.16 implementation." This reverts commit d78d046bad6c1679fff32efaa98bc6b4478d20eb. Revert "SW: Process input at frame rate." This reverts commit c162014dab5433dff2c5c3e5397178c992e1e761. Revert "SW: Amendments to accommodate changes in master." This reverts commit eaa51138add0d83568fafb79bc9afa35fe67a64f. Revert "SW: Fix incorrectly declared function input type." This reverts commit 1cdd5b08d82a88eb57013e78a34e4ef9e0796d34. Revert "SW: Amend scaleAdjustmentToInterval() with correct value for SW." This reverts commit d4dd737cd54e5c30c41a339fba6cefad696f3a42. Revert "SW: Refinements to new input code." This reverts commit 5ebc65a1fb19f86c2add664470108002a0078945. Revert "SW: Adjust look and snap up/down keys and slightly tune PLAYER_TURN_AMOUNT." This reverts commit 2852536dbf50f4cab58a158083b8c6e2de6ac1dd. Revert "SW: Get PLAYER_TURN_SCALE to be just right." This reverts commit 4630c8a0b7a24819e04a14a64efff5d4b36271cf. Revert "SW: Make map follow mode work better." This reverts commit 8e94c48eff599078364a7b0a7b94750cd40daf28. Revert "SW: Remove line accidentally left from 'MoveScrollMode2D()'." This reverts commit 5db8047b413548d3ef02d08d1d581c303a3d5907. Revert "Fix multiplayer desync after the change to q16 angle and horiz." This reverts commit 3bc46078b833e27fab42eaa77a0f5071c35dd584. Revert "SW: Revert commented out horiz->q16horiz renames in DSPRINTF strings" This reverts commit 537313f620dc98a832d862aff86a78e0b3b3cb23. Revert "sw/src/draw.cpp:drawscreen: We can set the pp->si* fields just once," This reverts commit d2e9595980c283d62de28f029b5f6394bf2522ff. Revert "sw/src/game.cpp:LoadLevel: Rename q16ang -> ang" This reverts commit a178961a3eed2522147f60d7265bb2d08f4a0bfe. Revert "SW: Minor tweaks." This reverts commit 377ba68344e34495638c6fa7685ff78c9a0ed6f8. Revert "SW: Further refine turning and optimise horizon adjustment." This reverts commit 039022d9ac476cc784e47633bfbac039a965f217. Revert "SW: Don't process input at frame rate if ScrollMode2D is true." This reverts commit 1aa1e62c4d4dc1fff24201ff8eaebcccef6d7646. Revert "SW: Use a bit more Q16.16 in places." This reverts commit 40ca656f38de5d941cf5deac440eeafa965df3bd. Revert "SW: Use the old interpolation path in drawscreen if player is dead" This reverts commit 2d734664259e47b999fe989b924ecaa0a97bb109. Revert "SW: Smooth out 180 degree turn landing and replace some fix16_min/max with fix16_clamp." This reverts commit 0996e87f7991490d70fba9e5b525e7c7404ce637. Revert "Change Next/Previous Weapon button handling for Shadow Warrior." This reverts commit f6b8ca6a223923b0ec5665aedacd729391ea1d4d. Revert "SW: Make "Center_View" key return smoothly." This reverts commit 23c401fbc28845a7ecb1ad9b29d0e72781b052b5. Revert "SW: Use the old interpolation path in drawscreen if player is dead" This reverts commit 43ec16eb5576124bed3699943bb70b9ea943bd93. Revert "Interpolation fixes for SW:" This reverts commit ac8a7ecfbdfbe9152a8ead605723c1d18eca7798. Revert "SW: Reset the number of interpolations on level load" This reverts commit 04bf8499e72fd48e1e6e7487d743b38a2a206a14. Revert "Another change modifying saved game format in SW:" This reverts commit e80888523ea62df60c69b098236f6af1f994177a. Revert "SW: Interpolate sector objects in non-demo, single player games." This reverts commit 996ab77cf47b5eeb142d6c93e7b307418f3b53a6. Revert "- fixed merge errors in SW." This reverts commit b8cfa94568b85e4ed51c558f09734ede794ad988. Revert "- fix interpolation stutters when opening console for SW." This reverts commit 99fdbfb6cb62bd02d91f4b2d95339cbd918c71fa. Revert "- reset buttonMap button states after returning from pause for SW (stops keys acting stuck down if down prior to pausing)." This reverts commit 693b6955dac84b13fc5de91aee29364c3be6e526. Revert "SW: fix stupid input scaling bug" This reverts commit 1c79e6e17c0028e650f525db6cdbd1b38095708e. Revert "SW: Make vehicle input better." This reverts commit 670a53c402f08ac0aecd721f8c5cf1543f699250. Revert "SW: Change fix16_from_float() to fix16_from_int() that was changed in 4630c8a0b7a24819e04a14a64efff5d4b36271cf but should have been reverted in 377ba68344e34495638c6fa7685ff78c9a0ed6f8." This reverts commit 423c9da071844bdfb716d39e1cd2cf103727a37c. Revert "SW: Remove ScrollMode2D extern boolean and move into PLAYERp struct." This reverts commit 31eb55c1fa69bfe90c09ce9611e0d32445341284.
2020-05-19 11:44:52 +00:00
#define MAXINTERPOLATIONS 1024
int numinterpolations = 0;
int oldipos[MAXINTERPOLATIONS];
int bakipos[MAXINTERPOLATIONS];
int *curipos[MAXINTERPOLATIONS];
void setinterpolation(int *posptr)
{
int i;
if (numinterpolations >= MAXINTERPOLATIONS)
return;
for (i = numinterpolations - 1; i >= 0; i--)
{
if (curipos[i] == posptr)
return;
}
curipos[numinterpolations] = posptr;
oldipos[numinterpolations] = *posptr;
numinterpolations++;
}
void stopinterpolation(int *posptr)
{
int i;
for (i = numinterpolations - 1; i >= 0; i--)
{
if (curipos[i] == posptr)
{
numinterpolations--;
oldipos[i] = oldipos[numinterpolations];
bakipos[i] = bakipos[numinterpolations];
curipos[i] = curipos[numinterpolations];
}
}
}
void updateinterpolations(void) // Stick at beginning of domovethings
{
int i;
for (i = numinterpolations - 1; i >= 0; i--)
oldipos[i] = *curipos[i];
}
// must call restore for every do interpolations
// make sure you don't exit
void dointerpolations(int smoothratio) // Stick at beginning of drawscreen
{
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 = mulscale16(ndelta, smoothratio);
*curipos[i] = oldipos[i] + j;
}
}
void restoreinterpolations(void) // Stick at end of drawscreen
{
int i;
for (i = numinterpolations - 1; i >= 0; i--)
*curipos[i] = bakipos[i];
}
END_SW_NS