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/*
Copyright (C) 1997-2001 Id Software, Inc.
This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// Created on 16.11.2005 by RST.
// $Id: GameChase.java,v 1.2 2006-01-21 21:53:32 salomo Exp $
package jake2.game;
import jake2.*;
import jake2.client.*;
import jake2.game.*;
import jake2.qcommon.*;
import jake2.render.*;
import jake2.server.*;
import jake2.util.Math3D;
public class GameChase {
public static void UpdateChaseCam(edict_t ent) {
float[] o = { 0, 0, 0 }, ownerv = { 0, 0, 0 }, goal = { 0, 0, 0 };
edict_t targ;
float[] forward = { 0, 0, 0 }, right = { 0, 0, 0 };
trace_t trace;
int i;
float[] oldgoal = { 0, 0, 0 };
float[] angles = { 0, 0, 0 };
// is our chase target gone?
if (!ent.client.chase_target.inuse
|| ent.client.chase_target.client.resp.spectator) {
edict_t old = ent.client.chase_target;
ChaseNext(ent);
if (ent.client.chase_target == old) {
ent.client.chase_target = null;
ent.client.ps.pmove.pm_flags &= ~pmove_t.PMF_NO_PREDICTION;
return;
}
}
targ = ent.client.chase_target;
Math3D.VectorCopy(targ.s.origin, ownerv);
Math3D.VectorCopy(ent.s.origin, oldgoal);
ownerv[2] += targ.viewheight;
Math3D.VectorCopy(targ.client.v_angle, angles);
if (angles[Defines.PITCH] > 56)
angles[Defines.PITCH] = 56;
Math3D.AngleVectors(angles, forward, right, null);
Math3D.VectorNormalize(forward);
Math3D.VectorMA(ownerv, -30, forward, o);
if (o[2] < targ.s.origin[2] + 20)
o[2] = targ.s.origin[2] + 20;
// jump animation lifts
if (targ.groundentity == null)
o[2] += 16;
trace = GameBase.gi.trace(ownerv, Globals.vec3_origin,
Globals.vec3_origin, o, targ, Defines.MASK_SOLID);
Math3D.VectorCopy(trace.endpos, goal);
Math3D.VectorMA(goal, 2, forward, goal);
// pad for floors and ceilings
Math3D.VectorCopy(goal, o);
o[2] += 6;
trace = GameBase.gi.trace(goal, Globals.vec3_origin,
Globals.vec3_origin, o, targ, Defines.MASK_SOLID);
if (trace.fraction < 1) {
Math3D.VectorCopy(trace.endpos, goal);
goal[2] -= 6;
}
Math3D.VectorCopy(goal, o);
o[2] -= 6;
trace = GameBase.gi.trace(goal, Globals.vec3_origin,
Globals.vec3_origin, o, targ, Defines.MASK_SOLID);
if (trace.fraction < 1) {
Math3D.VectorCopy(trace.endpos, goal);
goal[2] += 6;
}
if (targ.deadflag != 0)
ent.client.ps.pmove.pm_type = Defines.PM_DEAD;
else
ent.client.ps.pmove.pm_type = Defines.PM_FREEZE;
Math3D.VectorCopy(goal, ent.s.origin);
for (i = 0; i < 3; i++)
ent.client.ps.pmove.delta_angles[i] = (short) Math3D
.ANGLE2SHORT(targ.client.v_angle[i]
- ent.client.resp.cmd_angles[i]);
if (targ.deadflag != 0) {
ent.client.ps.viewangles[Defines.ROLL] = 40;
ent.client.ps.viewangles[Defines.PITCH] = -15;
ent.client.ps.viewangles[Defines.YAW] = targ.client.killer_yaw;
} else {
Math3D.VectorCopy(targ.client.v_angle, ent.client.ps.viewangles);
Math3D.VectorCopy(targ.client.v_angle, ent.client.v_angle);
}
ent.viewheight = 0;
ent.client.ps.pmove.pm_flags |= pmove_t.PMF_NO_PREDICTION;
SV_WORLD.SV_LinkEdict(ent);
}
public static void ChaseNext(edict_t ent) {
int i;
edict_t e;
if (null == ent.client.chase_target)
return;
i = ent.client.chase_target.index;
do {
i++;
if (i > GameBase.maxclients.value)
i = 1;
e = GameBase.g_edicts[i];
if (!e.inuse)
continue;
if (!e.client.resp.spectator)
break;
} while (e != ent.client.chase_target);
ent.client.chase_target = e;
ent.client.update_chase = true;
}
public static void ChasePrev(edict_t ent) {
int i;
edict_t e;
if (ent.client.chase_target == null)
return;
i = ent.client.chase_target.index;
do {
i--;
if (i < 1)
i = (int) GameBase.maxclients.value;
e = GameBase.g_edicts[i];
if (!e.inuse)
continue;
if (!e.client.resp.spectator)
break;
} while (e != ent.client.chase_target);
ent.client.chase_target = e;
ent.client.update_chase = true;
}
public static void GetChaseTarget(edict_t ent) {
int i;
edict_t other;
for (i = 1; i <= GameBase.maxclients.value; i++) {
other = GameBase.g_edicts[i];
if (other.inuse && !other.client.resp.spectator) {
ent.client.chase_target = other;
ent.client.update_chase = true;
UpdateChaseCam(ent);
return;
}
}
GameBase.gi.centerprintf(ent, "No other players to chase.");
}
}
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