2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // chase.c -- chase camera code
24 cvar_t chase_back = {"chase_back", "48"};
25 cvar_t chase_up = {"chase_up", "22"};
26 cvar_t chase_active = {"chase_active", "0"};
28 void Chase_Init (void)
30 Cvar_RegisterVariable (&chase_back);
31 Cvar_RegisterVariable (&chase_up);
32 Cvar_RegisterVariable (&chase_active);
35 void Chase_Reset (void)
37 // for respawning and teleporting
38 // start position 12 units behind head
41 void TraceLine (vec3_t start, vec3_t end, vec3_t impact)
45 memset (&trace, 0, sizeof(trace));
46 VectorCopy (end, trace.endpos); // fix TraceLine endpoint bug
47 SV_RecursiveHullCheck (cl.worldmodel->hulls, 0, 0, 1, start, end, &trace);
48 VectorCopy (trace.endpos, impact);
51 void Chase_Update (void)
53 vec3_t forward, up, right, stop, chase_dest;
56 chase_back.value = bound(0, chase_back.value, 128);
57 chase_up.value = bound(-64, chase_up.value, 64);
59 AngleVectors (cl.viewangles, forward, right, up);
61 dist = -chase_back.value - 8;
62 chase_dest[0] = r_refdef.vieworg[0] + forward[0] * dist;
63 chase_dest[1] = r_refdef.vieworg[1] + forward[1] * dist;
64 chase_dest[2] = r_refdef.vieworg[2] + forward[2] * dist + chase_up.value;
66 TraceLine (r_refdef.vieworg, chase_dest, stop);
67 chase_dest[0] = stop[0] + forward[0] * 8;
68 chase_dest[1] = stop[1] + forward[1] * 8;
69 chase_dest[2] = stop[2] + forward[2] * 8;
71 VectorCopy (chase_dest, r_refdef.vieworg);