1 /* Emacs style mode select   -*- C++ -*-
2  *-----------------------------------------------------------------------------
3  *
4  *
5  *  PrBoom: a Doom port merged with LxDoom and LSDLDoom
6  *  based on BOOM, a modified and improved DOOM engine
7  *  Copyright (C) 1999 by
8  *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
9  *  Copyright (C) 1999-2000 by
10  *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze, Andrey Budko
11  *  Copyright 2005, 2006 by
12  *  Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
13  *
14  *  This program is free software; you can redistribute it and/or
15  *  modify it under the terms of the GNU General Public License
16  *  as published by the Free Software Foundation; either version 2
17  *  of the License, or (at your option) any later version.
18  *
19  *  This program is distributed in the hope that it will be useful,
20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22  *  GNU General Public License for more details.
23  *
24  *  You should have received a copy of the GNU General Public License
25  *  along with this program; if not, write to the Free Software
26  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27  *  02111-1307, USA.
28  *
29  * DESCRIPTION:
30  *      Demo stuff
31  *
32  *---------------------------------------------------------------------
33  */
34 
35 #include "doomstat.h"
36 #include "r_demo.h"
37 #include "r_fps.h"
38 
39 int demo_smoothturns = FALSE;
40 int demo_smoothturnsfactor = 6;
41 
42 static int smooth_playing_turns[SMOOTH_PLAYING_MAXFACTOR];
43 static int64_t smooth_playing_sum;
44 static int smooth_playing_index;
45 static angle_t smooth_playing_angle;
46 
R_SmoothPlaying_Reset(player_t * player)47 void R_SmoothPlaying_Reset(player_t *player)
48 {
49   if (demo_smoothturns && demoplayback)
50   {
51     if (!player)
52       player = &players[displayplayer];
53 
54     if (player==&players[displayplayer])
55     {
56       smooth_playing_angle = players[displayplayer].mo->angle;
57       memset(smooth_playing_turns, 0, sizeof(smooth_playing_turns[0]) * SMOOTH_PLAYING_MAXFACTOR);
58       smooth_playing_sum = 0;
59       smooth_playing_index = 0;
60     }
61   }
62 }
63 
R_SmoothPlaying_Add(int delta)64 void R_SmoothPlaying_Add(int delta)
65 {
66   if (demo_smoothturns && demoplayback)
67   {
68     smooth_playing_sum -= smooth_playing_turns[smooth_playing_index];
69     smooth_playing_turns[smooth_playing_index] = delta;
70     smooth_playing_index = (smooth_playing_index + 1)%(demo_smoothturnsfactor);
71     smooth_playing_sum += delta;
72     smooth_playing_angle += (int)(smooth_playing_sum/(demo_smoothturnsfactor));
73   }
74 }
75 
R_SmoothPlaying_Get(angle_t defangle)76 angle_t R_SmoothPlaying_Get(angle_t defangle)
77 {
78   if (demo_smoothturns && demoplayback)
79     return smooth_playing_angle;
80   else
81     return defangle;
82 }
83 
R_ResetAfterTeleport(player_t * player)84 void R_ResetAfterTeleport(player_t *player)
85 {
86   R_ResetViewInterpolation();
87   R_SmoothPlaying_Reset(player);
88 }
89