mirror of
https://git.code.sf.net/p/quake/quakeforge-old
synced 2024-11-26 22:01:31 +00:00
c3f5581b0a
Unchained, Ultimate, Ultra, Up Yours, Underworld, Underground, Unified, Unity, etc. You know the drill. This takes care of the "standalone" problem with the wrong name, and the recent snafu with multiple developers working on the same files simultaneously...expect me (and probably others) to start locking dirs when updates are taking place. And yes, this update is really as large as it looks. Software only at the moment, but I will have the makefile updated to build the GL builds as well.
1617 lines
36 KiB
C
1617 lines
36 KiB
C
/*
|
|
Copyright (C) 1996-1997 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.
|
|
|
|
*/
|
|
// sv_phys.c
|
|
|
|
#include "quakedef.h"
|
|
|
|
/*
|
|
|
|
|
|
pushmove objects do not obey gravity, and do not interact with each other or trigger fields, but block normal movement and push normal objects when they move.
|
|
|
|
onground is set for toss objects when they come to a complete rest. it is set for steping or walking objects
|
|
|
|
doors, plats, etc are SOLID_BSP, and MOVETYPE_PUSH
|
|
bonus items are SOLID_TRIGGER touch, and MOVETYPE_TOSS
|
|
corpses are SOLID_NOT and MOVETYPE_TOSS
|
|
crates are SOLID_BBOX and MOVETYPE_TOSS
|
|
walking monsters are SOLID_SLIDEBOX and MOVETYPE_STEP
|
|
flying/floating monsters are SOLID_SLIDEBOX and MOVETYPE_FLY
|
|
|
|
solid_edge items only clip against bsp models.
|
|
|
|
*/
|
|
|
|
cvar_t sv_friction = {"sv_friction","4",false,true};
|
|
cvar_t sv_stopspeed = {"sv_stopspeed","100"};
|
|
cvar_t sv_gravity = {"sv_gravity","800",false,true};
|
|
cvar_t sv_maxvelocity = {"sv_maxvelocity","2000"};
|
|
cvar_t sv_nostep = {"sv_nostep","0"};
|
|
|
|
#ifdef QUAKE2
|
|
static vec3_t vec_origin = {0.0, 0.0, 0.0};
|
|
#endif
|
|
|
|
#define MOVE_EPSILON 0.01
|
|
|
|
void SV_Physics_Toss (edict_t *ent);
|
|
|
|
/*
|
|
================
|
|
SV_CheckAllEnts
|
|
================
|
|
*/
|
|
void SV_CheckAllEnts (void)
|
|
{
|
|
int e;
|
|
edict_t *check;
|
|
|
|
// see if any solid entities are inside the final position
|
|
check = NEXT_EDICT(sv.edicts);
|
|
for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check))
|
|
{
|
|
if (check->free)
|
|
continue;
|
|
if (check->v.movetype == MOVETYPE_PUSH
|
|
|| check->v.movetype == MOVETYPE_NONE
|
|
#ifdef QUAKE2
|
|
|| check->v.movetype == MOVETYPE_FOLLOW
|
|
#endif
|
|
|| check->v.movetype == MOVETYPE_NOCLIP)
|
|
continue;
|
|
|
|
if (SV_TestEntityPosition (check))
|
|
Con_Printf ("entity in invalid position\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
SV_CheckVelocity
|
|
================
|
|
*/
|
|
void SV_CheckVelocity (edict_t *ent)
|
|
{
|
|
int i;
|
|
|
|
//
|
|
// bound velocity
|
|
//
|
|
for (i=0 ; i<3 ; i++)
|
|
{
|
|
if (IS_NAN(ent->v.velocity[i]))
|
|
{
|
|
Con_Printf ("Got a NaN velocity on %s\n", pr_strings + ent->v.classname);
|
|
ent->v.velocity[i] = 0;
|
|
}
|
|
if (IS_NAN(ent->v.origin[i]))
|
|
{
|
|
Con_Printf ("Got a NaN origin on %s\n", pr_strings + ent->v.classname);
|
|
ent->v.origin[i] = 0;
|
|
}
|
|
if (ent->v.velocity[i] > sv_maxvelocity.value)
|
|
ent->v.velocity[i] = sv_maxvelocity.value;
|
|
else if (ent->v.velocity[i] < -sv_maxvelocity.value)
|
|
ent->v.velocity[i] = -sv_maxvelocity.value;
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============
|
|
SV_RunThink
|
|
|
|
Runs thinking code if time. There is some play in the exact time the think
|
|
function will be called, because it is called before any movement is done
|
|
in a frame. Not used for pushmove objects, because they must be exact.
|
|
Returns false if the entity removed itself.
|
|
=============
|
|
*/
|
|
qboolean SV_RunThink (edict_t *ent)
|
|
{
|
|
float thinktime;
|
|
|
|
thinktime = ent->v.nextthink;
|
|
if (thinktime <= 0 || thinktime > sv.time + host_frametime)
|
|
return true;
|
|
|
|
if (thinktime < sv.time)
|
|
thinktime = sv.time; // don't let things stay in the past.
|
|
// it is possible to start that way
|
|
// by a trigger with a local time.
|
|
ent->v.nextthink = 0;
|
|
pr_global_struct->time = thinktime;
|
|
pr_global_struct->self = EDICT_TO_PROG(ent);
|
|
pr_global_struct->other = EDICT_TO_PROG(sv.edicts);
|
|
PR_ExecuteProgram (ent->v.think);
|
|
return !ent->free;
|
|
}
|
|
|
|
/*
|
|
==================
|
|
SV_Impact
|
|
|
|
Two entities have touched, so run their touch functions
|
|
==================
|
|
*/
|
|
void SV_Impact (edict_t *e1, edict_t *e2)
|
|
{
|
|
int old_self, old_other;
|
|
|
|
old_self = pr_global_struct->self;
|
|
old_other = pr_global_struct->other;
|
|
|
|
pr_global_struct->time = sv.time;
|
|
if (e1->v.touch && e1->v.solid != SOLID_NOT)
|
|
{
|
|
pr_global_struct->self = EDICT_TO_PROG(e1);
|
|
pr_global_struct->other = EDICT_TO_PROG(e2);
|
|
PR_ExecuteProgram (e1->v.touch);
|
|
}
|
|
|
|
if (e2->v.touch && e2->v.solid != SOLID_NOT)
|
|
{
|
|
pr_global_struct->self = EDICT_TO_PROG(e2);
|
|
pr_global_struct->other = EDICT_TO_PROG(e1);
|
|
PR_ExecuteProgram (e2->v.touch);
|
|
}
|
|
|
|
pr_global_struct->self = old_self;
|
|
pr_global_struct->other = old_other;
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
ClipVelocity
|
|
|
|
Slide off of the impacting object
|
|
returns the blocked flags (1 = floor, 2 = step / wall)
|
|
==================
|
|
*/
|
|
#define STOP_EPSILON 0.1
|
|
|
|
int ClipVelocity (vec3_t in, vec3_t normal, vec3_t out, float overbounce)
|
|
{
|
|
float backoff;
|
|
float change;
|
|
int i, blocked;
|
|
|
|
blocked = 0;
|
|
if (normal[2] > 0)
|
|
blocked |= 1; // floor
|
|
if (!normal[2])
|
|
blocked |= 2; // step
|
|
|
|
backoff = DotProduct (in, normal) * overbounce;
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
{
|
|
change = normal[i]*backoff;
|
|
out[i] = in[i] - change;
|
|
if (out[i] > -STOP_EPSILON && out[i] < STOP_EPSILON)
|
|
out[i] = 0;
|
|
}
|
|
|
|
return blocked;
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
SV_FlyMove
|
|
|
|
The basic solid body movement clip that slides along multiple planes
|
|
Returns the clipflags if the velocity was modified (hit something solid)
|
|
1 = floor
|
|
2 = wall / step
|
|
4 = dead stop
|
|
If steptrace is not NULL, the trace of any vertical wall hit will be stored
|
|
============
|
|
*/
|
|
#define MAX_CLIP_PLANES 5
|
|
int SV_FlyMove (edict_t *ent, float time, trace_t *steptrace)
|
|
{
|
|
int bumpcount, numbumps;
|
|
vec3_t dir;
|
|
float d;
|
|
int numplanes;
|
|
vec3_t planes[MAX_CLIP_PLANES];
|
|
vec3_t primal_velocity, original_velocity, new_velocity;
|
|
int i, j;
|
|
trace_t trace;
|
|
vec3_t end;
|
|
float time_left;
|
|
int blocked;
|
|
|
|
numbumps = 4;
|
|
|
|
blocked = 0;
|
|
VectorCopy (ent->v.velocity, original_velocity);
|
|
VectorCopy (ent->v.velocity, primal_velocity);
|
|
numplanes = 0;
|
|
|
|
time_left = time;
|
|
|
|
for (bumpcount=0 ; bumpcount<numbumps ; bumpcount++)
|
|
{
|
|
if (!ent->v.velocity[0] && !ent->v.velocity[1] && !ent->v.velocity[2])
|
|
break;
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
end[i] = ent->v.origin[i] + time_left * ent->v.velocity[i];
|
|
|
|
trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, false, ent);
|
|
|
|
if (trace.allsolid)
|
|
{ // entity is trapped in another solid
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
return 3;
|
|
}
|
|
|
|
if (trace.fraction > 0)
|
|
{ // actually covered some distance
|
|
VectorCopy (trace.endpos, ent->v.origin);
|
|
VectorCopy (ent->v.velocity, original_velocity);
|
|
numplanes = 0;
|
|
}
|
|
|
|
if (trace.fraction == 1)
|
|
break; // moved the entire distance
|
|
|
|
if (!trace.ent)
|
|
Sys_Error ("SV_FlyMove: !trace.ent");
|
|
|
|
if (trace.plane.normal[2] > 0.7)
|
|
{
|
|
blocked |= 1; // floor
|
|
if (trace.ent->v.solid == SOLID_BSP)
|
|
{
|
|
ent->v.flags = (int)ent->v.flags | FL_ONGROUND;
|
|
ent->v.groundentity = EDICT_TO_PROG(trace.ent);
|
|
}
|
|
}
|
|
if (!trace.plane.normal[2])
|
|
{
|
|
blocked |= 2; // step
|
|
if (steptrace)
|
|
*steptrace = trace; // save for player extrafriction
|
|
}
|
|
|
|
//
|
|
// run the impact function
|
|
//
|
|
SV_Impact (ent, trace.ent);
|
|
if (ent->free)
|
|
break; // removed by the impact function
|
|
|
|
|
|
time_left -= time_left * trace.fraction;
|
|
|
|
// cliped to another plane
|
|
if (numplanes >= MAX_CLIP_PLANES)
|
|
{ // this shouldn't really happen
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
return 3;
|
|
}
|
|
|
|
VectorCopy (trace.plane.normal, planes[numplanes]);
|
|
numplanes++;
|
|
|
|
//
|
|
// modify original_velocity so it parallels all of the clip planes
|
|
//
|
|
for (i=0 ; i<numplanes ; i++)
|
|
{
|
|
ClipVelocity (original_velocity, planes[i], new_velocity, 1);
|
|
for (j=0 ; j<numplanes ; j++)
|
|
if (j != i)
|
|
{
|
|
if (DotProduct (new_velocity, planes[j]) < 0)
|
|
break; // not ok
|
|
}
|
|
if (j == numplanes)
|
|
break;
|
|
}
|
|
|
|
if (i != numplanes)
|
|
{ // go along this plane
|
|
VectorCopy (new_velocity, ent->v.velocity);
|
|
}
|
|
else
|
|
{ // go along the crease
|
|
if (numplanes != 2)
|
|
{
|
|
// Con_Printf ("clip velocity, numplanes == %i\n",numplanes);
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
return 7;
|
|
}
|
|
CrossProduct (planes[0], planes[1], dir);
|
|
d = DotProduct (dir, ent->v.velocity);
|
|
VectorScale (dir, d, ent->v.velocity);
|
|
}
|
|
|
|
//
|
|
// if original velocity is against the original velocity, stop dead
|
|
// to avoid tiny occilations in sloping corners
|
|
//
|
|
if (DotProduct (ent->v.velocity, primal_velocity) <= 0)
|
|
{
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
return blocked;
|
|
}
|
|
}
|
|
|
|
return blocked;
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
SV_AddGravity
|
|
|
|
============
|
|
*/
|
|
void SV_AddGravity (edict_t *ent)
|
|
{
|
|
float ent_gravity;
|
|
|
|
#ifdef QUAKE2
|
|
if (ent->v.gravity)
|
|
ent_gravity = ent->v.gravity;
|
|
else
|
|
ent_gravity = 1.0;
|
|
#else
|
|
eval_t *val;
|
|
|
|
val = GetEdictFieldValue(ent, "gravity");
|
|
if (val && val->_float)
|
|
ent_gravity = val->_float;
|
|
else
|
|
ent_gravity = 1.0;
|
|
#endif
|
|
ent->v.velocity[2] -= ent_gravity * sv_gravity.value * host_frametime;
|
|
}
|
|
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
PUSHMOVE
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
/*
|
|
============
|
|
SV_PushEntity
|
|
|
|
Does not change the entities velocity at all
|
|
============
|
|
*/
|
|
trace_t SV_PushEntity (edict_t *ent, vec3_t push)
|
|
{
|
|
trace_t trace;
|
|
vec3_t end;
|
|
|
|
VectorAdd (ent->v.origin, push, end);
|
|
|
|
if (ent->v.movetype == MOVETYPE_FLYMISSILE)
|
|
trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_MISSILE, ent);
|
|
else if (ent->v.solid == SOLID_TRIGGER || ent->v.solid == SOLID_NOT)
|
|
// only clip against bmodels
|
|
trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_NOMONSTERS, ent);
|
|
else
|
|
trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_NORMAL, ent);
|
|
|
|
VectorCopy (trace.endpos, ent->v.origin);
|
|
SV_LinkEdict (ent, true);
|
|
|
|
if (trace.ent)
|
|
SV_Impact (ent, trace.ent);
|
|
|
|
return trace;
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
SV_PushMove
|
|
|
|
============
|
|
*/
|
|
void SV_PushMove (edict_t *pusher, float movetime)
|
|
{
|
|
int i, e;
|
|
edict_t *check, *block;
|
|
vec3_t mins, maxs, move;
|
|
vec3_t entorig, pushorig;
|
|
int num_moved;
|
|
edict_t *moved_edict[MAX_EDICTS];
|
|
vec3_t moved_from[MAX_EDICTS];
|
|
|
|
if (!pusher->v.velocity[0] && !pusher->v.velocity[1] && !pusher->v.velocity[2])
|
|
{
|
|
pusher->v.ltime += movetime;
|
|
return;
|
|
}
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
{
|
|
move[i] = pusher->v.velocity[i] * movetime;
|
|
mins[i] = pusher->v.absmin[i] + move[i];
|
|
maxs[i] = pusher->v.absmax[i] + move[i];
|
|
}
|
|
|
|
VectorCopy (pusher->v.origin, pushorig);
|
|
|
|
// move the pusher to it's final position
|
|
|
|
VectorAdd (pusher->v.origin, move, pusher->v.origin);
|
|
pusher->v.ltime += movetime;
|
|
SV_LinkEdict (pusher, false);
|
|
|
|
|
|
// see if any solid entities are inside the final position
|
|
num_moved = 0;
|
|
check = NEXT_EDICT(sv.edicts);
|
|
for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check))
|
|
{
|
|
if (check->free)
|
|
continue;
|
|
if (check->v.movetype == MOVETYPE_PUSH
|
|
|| check->v.movetype == MOVETYPE_NONE
|
|
#ifdef QUAKE2
|
|
|| check->v.movetype == MOVETYPE_FOLLOW
|
|
#endif
|
|
|| check->v.movetype == MOVETYPE_NOCLIP)
|
|
continue;
|
|
|
|
// if the entity is standing on the pusher, it will definately be moved
|
|
if ( ! ( ((int)check->v.flags & FL_ONGROUND)
|
|
&& PROG_TO_EDICT(check->v.groundentity) == pusher) )
|
|
{
|
|
if ( check->v.absmin[0] >= maxs[0]
|
|
|| check->v.absmin[1] >= maxs[1]
|
|
|| check->v.absmin[2] >= maxs[2]
|
|
|| check->v.absmax[0] <= mins[0]
|
|
|| check->v.absmax[1] <= mins[1]
|
|
|| check->v.absmax[2] <= mins[2] )
|
|
continue;
|
|
|
|
// see if the ent's bbox is inside the pusher's final position
|
|
if (!SV_TestEntityPosition (check))
|
|
continue;
|
|
}
|
|
|
|
// remove the onground flag for non-players
|
|
if (check->v.movetype != MOVETYPE_WALK)
|
|
check->v.flags = (int)check->v.flags & ~FL_ONGROUND;
|
|
|
|
VectorCopy (check->v.origin, entorig);
|
|
VectorCopy (check->v.origin, moved_from[num_moved]);
|
|
moved_edict[num_moved] = check;
|
|
num_moved++;
|
|
|
|
// try moving the contacted entity
|
|
pusher->v.solid = SOLID_NOT;
|
|
SV_PushEntity (check, move);
|
|
pusher->v.solid = SOLID_BSP;
|
|
|
|
// if it is still inside the pusher, block
|
|
block = SV_TestEntityPosition (check);
|
|
if (block)
|
|
{ // fail the move
|
|
if (check->v.mins[0] == check->v.maxs[0])
|
|
continue;
|
|
if (check->v.solid == SOLID_NOT || check->v.solid == SOLID_TRIGGER)
|
|
{ // corpse
|
|
check->v.mins[0] = check->v.mins[1] = 0;
|
|
VectorCopy (check->v.mins, check->v.maxs);
|
|
continue;
|
|
}
|
|
|
|
VectorCopy (entorig, check->v.origin);
|
|
SV_LinkEdict (check, true);
|
|
|
|
VectorCopy (pushorig, pusher->v.origin);
|
|
SV_LinkEdict (pusher, false);
|
|
pusher->v.ltime -= movetime;
|
|
|
|
// if the pusher has a "blocked" function, call it
|
|
// otherwise, just stay in place until the obstacle is gone
|
|
if (pusher->v.blocked)
|
|
{
|
|
pr_global_struct->self = EDICT_TO_PROG(pusher);
|
|
pr_global_struct->other = EDICT_TO_PROG(check);
|
|
PR_ExecuteProgram (pusher->v.blocked);
|
|
}
|
|
|
|
// move back any entities we already moved
|
|
for (i=0 ; i<num_moved ; i++)
|
|
{
|
|
VectorCopy (moved_from[i], moved_edict[i]->v.origin);
|
|
SV_LinkEdict (moved_edict[i], false);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
#ifdef QUAKE2
|
|
/*
|
|
============
|
|
SV_PushRotate
|
|
|
|
============
|
|
*/
|
|
void SV_PushRotate (edict_t *pusher, float movetime)
|
|
{
|
|
int i, e;
|
|
edict_t *check, *block;
|
|
vec3_t move, a, amove;
|
|
vec3_t entorig, pushorig;
|
|
int num_moved;
|
|
edict_t *moved_edict[MAX_EDICTS];
|
|
vec3_t moved_from[MAX_EDICTS];
|
|
vec3_t org, org2;
|
|
vec3_t forward, right, up;
|
|
|
|
if (!pusher->v.avelocity[0] && !pusher->v.avelocity[1] && !pusher->v.avelocity[2])
|
|
{
|
|
pusher->v.ltime += movetime;
|
|
return;
|
|
}
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
amove[i] = pusher->v.avelocity[i] * movetime;
|
|
|
|
VectorSubtract (vec3_origin, amove, a);
|
|
AngleVectors (a, forward, right, up);
|
|
|
|
VectorCopy (pusher->v.angles, pushorig);
|
|
|
|
// move the pusher to it's final position
|
|
|
|
VectorAdd (pusher->v.angles, amove, pusher->v.angles);
|
|
pusher->v.ltime += movetime;
|
|
SV_LinkEdict (pusher, false);
|
|
|
|
|
|
// see if any solid entities are inside the final position
|
|
num_moved = 0;
|
|
check = NEXT_EDICT(sv.edicts);
|
|
for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check))
|
|
{
|
|
if (check->free)
|
|
continue;
|
|
if (check->v.movetype == MOVETYPE_PUSH
|
|
|| check->v.movetype == MOVETYPE_NONE
|
|
|| check->v.movetype == MOVETYPE_FOLLOW
|
|
|| check->v.movetype == MOVETYPE_NOCLIP)
|
|
continue;
|
|
|
|
// if the entity is standing on the pusher, it will definately be moved
|
|
if ( ! ( ((int)check->v.flags & FL_ONGROUND)
|
|
&& PROG_TO_EDICT(check->v.groundentity) == pusher) )
|
|
{
|
|
if ( check->v.absmin[0] >= pusher->v.absmax[0]
|
|
|| check->v.absmin[1] >= pusher->v.absmax[1]
|
|
|| check->v.absmin[2] >= pusher->v.absmax[2]
|
|
|| check->v.absmax[0] <= pusher->v.absmin[0]
|
|
|| check->v.absmax[1] <= pusher->v.absmin[1]
|
|
|| check->v.absmax[2] <= pusher->v.absmin[2] )
|
|
continue;
|
|
|
|
// see if the ent's bbox is inside the pusher's final position
|
|
if (!SV_TestEntityPosition (check))
|
|
continue;
|
|
}
|
|
|
|
// remove the onground flag for non-players
|
|
if (check->v.movetype != MOVETYPE_WALK)
|
|
check->v.flags = (int)check->v.flags & ~FL_ONGROUND;
|
|
|
|
VectorCopy (check->v.origin, entorig);
|
|
VectorCopy (check->v.origin, moved_from[num_moved]);
|
|
moved_edict[num_moved] = check;
|
|
num_moved++;
|
|
|
|
// calculate destination position
|
|
VectorSubtract (check->v.origin, pusher->v.origin, org);
|
|
org2[0] = DotProduct (org, forward);
|
|
org2[1] = -DotProduct (org, right);
|
|
org2[2] = DotProduct (org, up);
|
|
VectorSubtract (org2, org, move);
|
|
|
|
// try moving the contacted entity
|
|
pusher->v.solid = SOLID_NOT;
|
|
SV_PushEntity (check, move);
|
|
pusher->v.solid = SOLID_BSP;
|
|
|
|
// if it is still inside the pusher, block
|
|
block = SV_TestEntityPosition (check);
|
|
if (block)
|
|
{ // fail the move
|
|
if (check->v.mins[0] == check->v.maxs[0])
|
|
continue;
|
|
if (check->v.solid == SOLID_NOT || check->v.solid == SOLID_TRIGGER)
|
|
{ // corpse
|
|
check->v.mins[0] = check->v.mins[1] = 0;
|
|
VectorCopy (check->v.mins, check->v.maxs);
|
|
continue;
|
|
}
|
|
|
|
VectorCopy (entorig, check->v.origin);
|
|
SV_LinkEdict (check, true);
|
|
|
|
VectorCopy (pushorig, pusher->v.angles);
|
|
SV_LinkEdict (pusher, false);
|
|
pusher->v.ltime -= movetime;
|
|
|
|
// if the pusher has a "blocked" function, call it
|
|
// otherwise, just stay in place until the obstacle is gone
|
|
if (pusher->v.blocked)
|
|
{
|
|
pr_global_struct->self = EDICT_TO_PROG(pusher);
|
|
pr_global_struct->other = EDICT_TO_PROG(check);
|
|
PR_ExecuteProgram (pusher->v.blocked);
|
|
}
|
|
|
|
// move back any entities we already moved
|
|
for (i=0 ; i<num_moved ; i++)
|
|
{
|
|
VectorCopy (moved_from[i], moved_edict[i]->v.origin);
|
|
VectorSubtract (moved_edict[i]->v.angles, amove, moved_edict[i]->v.angles);
|
|
SV_LinkEdict (moved_edict[i], false);
|
|
}
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
VectorAdd (check->v.angles, amove, check->v.angles);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
================
|
|
SV_Physics_Pusher
|
|
|
|
================
|
|
*/
|
|
void SV_Physics_Pusher (edict_t *ent)
|
|
{
|
|
float thinktime;
|
|
float oldltime;
|
|
float movetime;
|
|
|
|
oldltime = ent->v.ltime;
|
|
|
|
thinktime = ent->v.nextthink;
|
|
if (thinktime < ent->v.ltime + host_frametime)
|
|
{
|
|
movetime = thinktime - ent->v.ltime;
|
|
if (movetime < 0)
|
|
movetime = 0;
|
|
}
|
|
else
|
|
movetime = host_frametime;
|
|
|
|
if (movetime)
|
|
{
|
|
#ifdef QUAKE2
|
|
if (ent->v.avelocity[0] || ent->v.avelocity[1] || ent->v.avelocity[2])
|
|
SV_PushRotate (ent, movetime);
|
|
else
|
|
#endif
|
|
SV_PushMove (ent, movetime); // advances ent->v.ltime if not blocked
|
|
}
|
|
|
|
if (thinktime > oldltime && thinktime <= ent->v.ltime)
|
|
{
|
|
ent->v.nextthink = 0;
|
|
pr_global_struct->time = sv.time;
|
|
pr_global_struct->self = EDICT_TO_PROG(ent);
|
|
pr_global_struct->other = EDICT_TO_PROG(sv.edicts);
|
|
PR_ExecuteProgram (ent->v.think);
|
|
if (ent->free)
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
CLIENT MOVEMENT
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
/*
|
|
=============
|
|
SV_CheckStuck
|
|
|
|
This is a big hack to try and fix the rare case of getting stuck in the world
|
|
clipping hull.
|
|
=============
|
|
*/
|
|
void SV_CheckStuck (edict_t *ent)
|
|
{
|
|
int i, j;
|
|
int z;
|
|
vec3_t org;
|
|
|
|
if (!SV_TestEntityPosition(ent))
|
|
{
|
|
VectorCopy (ent->v.origin, ent->v.oldorigin);
|
|
return;
|
|
}
|
|
|
|
VectorCopy (ent->v.origin, org);
|
|
VectorCopy (ent->v.oldorigin, ent->v.origin);
|
|
if (!SV_TestEntityPosition(ent))
|
|
{
|
|
Con_DPrintf ("Unstuck.\n");
|
|
SV_LinkEdict (ent, true);
|
|
return;
|
|
}
|
|
|
|
for (z=0 ; z< 18 ; z++)
|
|
for (i=-1 ; i <= 1 ; i++)
|
|
for (j=-1 ; j <= 1 ; j++)
|
|
{
|
|
ent->v.origin[0] = org[0] + i;
|
|
ent->v.origin[1] = org[1] + j;
|
|
ent->v.origin[2] = org[2] + z;
|
|
if (!SV_TestEntityPosition(ent))
|
|
{
|
|
Con_DPrintf ("Unstuck.\n");
|
|
SV_LinkEdict (ent, true);
|
|
return;
|
|
}
|
|
}
|
|
|
|
VectorCopy (org, ent->v.origin);
|
|
Con_DPrintf ("player is stuck.\n");
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
SV_CheckWater
|
|
=============
|
|
*/
|
|
qboolean SV_CheckWater (edict_t *ent)
|
|
{
|
|
vec3_t point;
|
|
int cont;
|
|
#ifdef QUAKE2
|
|
int truecont;
|
|
#endif
|
|
|
|
point[0] = ent->v.origin[0];
|
|
point[1] = ent->v.origin[1];
|
|
point[2] = ent->v.origin[2] + ent->v.mins[2] + 1;
|
|
|
|
ent->v.waterlevel = 0;
|
|
ent->v.watertype = CONTENTS_EMPTY;
|
|
cont = SV_PointContents (point);
|
|
if (cont <= CONTENTS_WATER)
|
|
{
|
|
#ifdef QUAKE2
|
|
truecont = SV_TruePointContents (point);
|
|
#endif
|
|
ent->v.watertype = cont;
|
|
ent->v.waterlevel = 1;
|
|
point[2] = ent->v.origin[2] + (ent->v.mins[2] + ent->v.maxs[2])*0.5;
|
|
cont = SV_PointContents (point);
|
|
if (cont <= CONTENTS_WATER)
|
|
{
|
|
ent->v.waterlevel = 2;
|
|
point[2] = ent->v.origin[2] + ent->v.view_ofs[2];
|
|
cont = SV_PointContents (point);
|
|
if (cont <= CONTENTS_WATER)
|
|
ent->v.waterlevel = 3;
|
|
}
|
|
#ifdef QUAKE2
|
|
if (truecont <= CONTENTS_CURRENT_0 && truecont >= CONTENTS_CURRENT_DOWN)
|
|
{
|
|
static vec3_t current_table[] =
|
|
{
|
|
{1, 0, 0},
|
|
{0, 1, 0},
|
|
{-1, 0, 0},
|
|
{0, -1, 0},
|
|
{0, 0, 1},
|
|
{0, 0, -1}
|
|
};
|
|
|
|
VectorMA (ent->v.basevelocity, 150.0*ent->v.waterlevel/3.0, current_table[CONTENTS_CURRENT_0 - truecont], ent->v.basevelocity);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return ent->v.waterlevel > 1;
|
|
}
|
|
|
|
/*
|
|
============
|
|
SV_WallFriction
|
|
|
|
============
|
|
*/
|
|
void SV_WallFriction (edict_t *ent, trace_t *trace)
|
|
{
|
|
vec3_t forward, right, up;
|
|
float d, i;
|
|
vec3_t into, side;
|
|
|
|
AngleVectors (ent->v.v_angle, forward, right, up);
|
|
d = DotProduct (trace->plane.normal, forward);
|
|
|
|
d += 0.5;
|
|
if (d >= 0)
|
|
return;
|
|
|
|
// cut the tangential velocity
|
|
i = DotProduct (trace->plane.normal, ent->v.velocity);
|
|
VectorScale (trace->plane.normal, i, into);
|
|
VectorSubtract (ent->v.velocity, into, side);
|
|
|
|
ent->v.velocity[0] = side[0] * (1 + d);
|
|
ent->v.velocity[1] = side[1] * (1 + d);
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
SV_TryUnstick
|
|
|
|
Player has come to a dead stop, possibly due to the problem with limited
|
|
float precision at some angle joins in the BSP hull.
|
|
|
|
Try fixing by pushing one pixel in each direction.
|
|
|
|
This is a hack, but in the interest of good gameplay...
|
|
======================
|
|
*/
|
|
int SV_TryUnstick (edict_t *ent, vec3_t oldvel)
|
|
{
|
|
int i;
|
|
vec3_t oldorg;
|
|
vec3_t dir;
|
|
int clip;
|
|
trace_t steptrace;
|
|
|
|
VectorCopy (ent->v.origin, oldorg);
|
|
VectorCopy (vec3_origin, dir);
|
|
|
|
for (i=0 ; i<8 ; i++)
|
|
{
|
|
// try pushing a little in an axial direction
|
|
switch (i)
|
|
{
|
|
case 0: dir[0] = 2; dir[1] = 0; break;
|
|
case 1: dir[0] = 0; dir[1] = 2; break;
|
|
case 2: dir[0] = -2; dir[1] = 0; break;
|
|
case 3: dir[0] = 0; dir[1] = -2; break;
|
|
case 4: dir[0] = 2; dir[1] = 2; break;
|
|
case 5: dir[0] = -2; dir[1] = 2; break;
|
|
case 6: dir[0] = 2; dir[1] = -2; break;
|
|
case 7: dir[0] = -2; dir[1] = -2; break;
|
|
}
|
|
|
|
SV_PushEntity (ent, dir);
|
|
|
|
// retry the original move
|
|
ent->v.velocity[0] = oldvel[0];
|
|
ent->v. velocity[1] = oldvel[1];
|
|
ent->v. velocity[2] = 0;
|
|
clip = SV_FlyMove (ent, 0.1, &steptrace);
|
|
|
|
if ( fabs(oldorg[1] - ent->v.origin[1]) > 4
|
|
|| fabs(oldorg[0] - ent->v.origin[0]) > 4 )
|
|
{
|
|
//Con_DPrintf ("unstuck!\n");
|
|
return clip;
|
|
}
|
|
|
|
// go back to the original pos and try again
|
|
VectorCopy (oldorg, ent->v.origin);
|
|
}
|
|
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
return 7; // still not moving
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
SV_WalkMove
|
|
|
|
Only used by players
|
|
======================
|
|
*/
|
|
#define STEPSIZE 18
|
|
void SV_WalkMove (edict_t *ent)
|
|
{
|
|
vec3_t upmove, downmove;
|
|
vec3_t oldorg, oldvel;
|
|
vec3_t nosteporg, nostepvel;
|
|
int clip;
|
|
int oldonground;
|
|
trace_t steptrace, downtrace;
|
|
|
|
//
|
|
// do a regular slide move unless it looks like you ran into a step
|
|
//
|
|
oldonground = (int)ent->v.flags & FL_ONGROUND;
|
|
ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND;
|
|
|
|
VectorCopy (ent->v.origin, oldorg);
|
|
VectorCopy (ent->v.velocity, oldvel);
|
|
|
|
clip = SV_FlyMove (ent, host_frametime, &steptrace);
|
|
|
|
if ( !(clip & 2) )
|
|
return; // move didn't block on a step
|
|
|
|
if (!oldonground && ent->v.waterlevel == 0)
|
|
return; // don't stair up while jumping
|
|
|
|
if (ent->v.movetype != MOVETYPE_WALK)
|
|
return; // gibbed by a trigger
|
|
|
|
if (sv_nostep.value)
|
|
return;
|
|
|
|
if ( (int)sv_player->v.flags & FL_WATERJUMP )
|
|
return;
|
|
|
|
VectorCopy (ent->v.origin, nosteporg);
|
|
VectorCopy (ent->v.velocity, nostepvel);
|
|
|
|
//
|
|
// try moving up and forward to go up a step
|
|
//
|
|
VectorCopy (oldorg, ent->v.origin); // back to start pos
|
|
|
|
VectorCopy (vec3_origin, upmove);
|
|
VectorCopy (vec3_origin, downmove);
|
|
upmove[2] = STEPSIZE;
|
|
downmove[2] = -STEPSIZE + oldvel[2]*host_frametime;
|
|
|
|
// move up
|
|
SV_PushEntity (ent, upmove); // FIXME: don't link?
|
|
|
|
// move forward
|
|
ent->v.velocity[0] = oldvel[0];
|
|
ent->v. velocity[1] = oldvel[1];
|
|
ent->v. velocity[2] = 0;
|
|
clip = SV_FlyMove (ent, host_frametime, &steptrace);
|
|
|
|
// check for stuckness, possibly due to the limited precision of floats
|
|
// in the clipping hulls
|
|
if (clip)
|
|
{
|
|
if ( fabs(oldorg[1] - ent->v.origin[1]) < 0.03125
|
|
&& fabs(oldorg[0] - ent->v.origin[0]) < 0.03125 )
|
|
{ // stepping up didn't make any progress
|
|
clip = SV_TryUnstick (ent, oldvel);
|
|
}
|
|
}
|
|
|
|
// extra friction based on view angle
|
|
if ( clip & 2 )
|
|
SV_WallFriction (ent, &steptrace);
|
|
|
|
// move down
|
|
downtrace = SV_PushEntity (ent, downmove); // FIXME: don't link?
|
|
|
|
if (downtrace.plane.normal[2] > 0.7)
|
|
{
|
|
if (ent->v.solid == SOLID_BSP)
|
|
{
|
|
ent->v.flags = (int)ent->v.flags | FL_ONGROUND;
|
|
ent->v.groundentity = EDICT_TO_PROG(downtrace.ent);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// if the push down didn't end up on good ground, use the move without
|
|
// the step up. This happens near wall / slope combinations, and can
|
|
// cause the player to hop up higher on a slope too steep to climb
|
|
VectorCopy (nosteporg, ent->v.origin);
|
|
VectorCopy (nostepvel, ent->v.velocity);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
SV_Physics_Client
|
|
|
|
Player character actions
|
|
================
|
|
*/
|
|
void SV_Physics_Client (edict_t *ent, int num)
|
|
{
|
|
if ( ! svs.clients[num-1].active )
|
|
return; // unconnected slot
|
|
|
|
//
|
|
// call standard client pre-think
|
|
//
|
|
pr_global_struct->time = sv.time;
|
|
pr_global_struct->self = EDICT_TO_PROG(ent);
|
|
PR_ExecuteProgram (pr_global_struct->PlayerPreThink);
|
|
|
|
//
|
|
// do a move
|
|
//
|
|
SV_CheckVelocity (ent);
|
|
|
|
//
|
|
// decide which move function to call
|
|
//
|
|
switch ((int)ent->v.movetype)
|
|
{
|
|
case MOVETYPE_NONE:
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
break;
|
|
|
|
case MOVETYPE_WALK:
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
if (!SV_CheckWater (ent) && ! ((int)ent->v.flags & FL_WATERJUMP) )
|
|
SV_AddGravity (ent);
|
|
SV_CheckStuck (ent);
|
|
#ifdef QUAKE2
|
|
VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
#endif
|
|
SV_WalkMove (ent);
|
|
|
|
#ifdef QUAKE2
|
|
VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
#endif
|
|
break;
|
|
|
|
case MOVETYPE_TOSS:
|
|
case MOVETYPE_BOUNCE:
|
|
SV_Physics_Toss (ent);
|
|
break;
|
|
|
|
case MOVETYPE_FLY:
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
SV_FlyMove (ent, host_frametime, NULL);
|
|
break;
|
|
|
|
case MOVETYPE_NOCLIP:
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
VectorMA (ent->v.origin, host_frametime, ent->v.velocity, ent->v.origin);
|
|
break;
|
|
|
|
default:
|
|
Sys_Error ("SV_Physics_client: bad movetype %i", (int)ent->v.movetype);
|
|
}
|
|
|
|
//
|
|
// call standard player post-think
|
|
//
|
|
SV_LinkEdict (ent, true);
|
|
|
|
pr_global_struct->time = sv.time;
|
|
pr_global_struct->self = EDICT_TO_PROG(ent);
|
|
PR_ExecuteProgram (pr_global_struct->PlayerPostThink);
|
|
}
|
|
|
|
//============================================================================
|
|
|
|
/*
|
|
=============
|
|
SV_Physics_None
|
|
|
|
Non moving objects can only think
|
|
=============
|
|
*/
|
|
void SV_Physics_None (edict_t *ent)
|
|
{
|
|
// regular thinking
|
|
SV_RunThink (ent);
|
|
}
|
|
|
|
#ifdef QUAKE2
|
|
/*
|
|
=============
|
|
SV_Physics_Follow
|
|
|
|
Entities that are "stuck" to another entity
|
|
=============
|
|
*/
|
|
void SV_Physics_Follow (edict_t *ent)
|
|
{
|
|
// regular thinking
|
|
SV_RunThink (ent);
|
|
VectorAdd (PROG_TO_EDICT(ent->v.aiment)->v.origin, ent->v.v_angle, ent->v.origin);
|
|
SV_LinkEdict (ent, true);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
=============
|
|
SV_Physics_Noclip
|
|
|
|
A moving object that doesn't obey physics
|
|
=============
|
|
*/
|
|
void SV_Physics_Noclip (edict_t *ent)
|
|
{
|
|
// regular thinking
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
|
|
VectorMA (ent->v.angles, host_frametime, ent->v.avelocity, ent->v.angles);
|
|
VectorMA (ent->v.origin, host_frametime, ent->v.velocity, ent->v.origin);
|
|
|
|
SV_LinkEdict (ent, false);
|
|
}
|
|
|
|
/*
|
|
==============================================================================
|
|
|
|
TOSS / BOUNCE
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
/*
|
|
=============
|
|
SV_CheckWaterTransition
|
|
|
|
=============
|
|
*/
|
|
void SV_CheckWaterTransition (edict_t *ent)
|
|
{
|
|
int cont;
|
|
#ifdef QUAKE2
|
|
vec3_t point;
|
|
|
|
point[0] = ent->v.origin[0];
|
|
point[1] = ent->v.origin[1];
|
|
point[2] = ent->v.origin[2] + ent->v.mins[2] + 1;
|
|
cont = SV_PointContents (point);
|
|
#else
|
|
cont = SV_PointContents (ent->v.origin);
|
|
#endif
|
|
if (!ent->v.watertype)
|
|
{ // just spawned here
|
|
ent->v.watertype = cont;
|
|
ent->v.waterlevel = 1;
|
|
return;
|
|
}
|
|
|
|
if (cont <= CONTENTS_WATER)
|
|
{
|
|
if (ent->v.watertype == CONTENTS_EMPTY)
|
|
{ // just crossed into water
|
|
SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1);
|
|
}
|
|
ent->v.watertype = cont;
|
|
ent->v.waterlevel = 1;
|
|
}
|
|
else
|
|
{
|
|
if (ent->v.watertype != CONTENTS_EMPTY)
|
|
{ // just crossed into water
|
|
SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1);
|
|
}
|
|
ent->v.watertype = CONTENTS_EMPTY;
|
|
ent->v.waterlevel = cont;
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============
|
|
SV_Physics_Toss
|
|
|
|
Toss, bounce, and fly movement. When onground, do nothing.
|
|
=============
|
|
*/
|
|
void SV_Physics_Toss (edict_t *ent)
|
|
{
|
|
trace_t trace;
|
|
vec3_t move;
|
|
float backoff;
|
|
#ifdef QUAKE2
|
|
edict_t *groundentity;
|
|
|
|
groundentity = PROG_TO_EDICT(ent->v.groundentity);
|
|
if ((int)groundentity->v.flags & FL_CONVEYOR)
|
|
VectorScale(groundentity->v.movedir, groundentity->v.speed, ent->v.basevelocity);
|
|
else
|
|
VectorCopy(vec_origin, ent->v.basevelocity);
|
|
SV_CheckWater (ent);
|
|
#endif
|
|
// regular thinking
|
|
if (!SV_RunThink (ent))
|
|
return;
|
|
|
|
#ifdef QUAKE2
|
|
if (ent->v.velocity[2] > 0)
|
|
ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND;
|
|
|
|
if ( ((int)ent->v.flags & FL_ONGROUND) )
|
|
//@@
|
|
if (VectorCompare(ent->v.basevelocity, vec_origin))
|
|
return;
|
|
|
|
SV_CheckVelocity (ent);
|
|
|
|
// add gravity
|
|
if (! ((int)ent->v.flags & FL_ONGROUND)
|
|
&& ent->v.movetype != MOVETYPE_FLY
|
|
&& ent->v.movetype != MOVETYPE_BOUNCEMISSILE
|
|
&& ent->v.movetype != MOVETYPE_FLYMISSILE)
|
|
SV_AddGravity (ent);
|
|
|
|
#else
|
|
// if onground, return without moving
|
|
if ( ((int)ent->v.flags & FL_ONGROUND) )
|
|
return;
|
|
|
|
SV_CheckVelocity (ent);
|
|
|
|
// add gravity
|
|
if (ent->v.movetype != MOVETYPE_FLY
|
|
&& ent->v.movetype != MOVETYPE_FLYMISSILE)
|
|
SV_AddGravity (ent);
|
|
#endif
|
|
|
|
// move angles
|
|
VectorMA (ent->v.angles, host_frametime, ent->v.avelocity, ent->v.angles);
|
|
|
|
// move origin
|
|
#ifdef QUAKE2
|
|
VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
#endif
|
|
VectorScale (ent->v.velocity, host_frametime, move);
|
|
trace = SV_PushEntity (ent, move);
|
|
#ifdef QUAKE2
|
|
VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
#endif
|
|
if (trace.fraction == 1)
|
|
return;
|
|
if (ent->free)
|
|
return;
|
|
|
|
if (ent->v.movetype == MOVETYPE_BOUNCE)
|
|
backoff = 1.5;
|
|
#ifdef QUAKE2
|
|
else if (ent->v.movetype == MOVETYPE_BOUNCEMISSILE)
|
|
backoff = 2.0;
|
|
#endif
|
|
else
|
|
backoff = 1;
|
|
|
|
ClipVelocity (ent->v.velocity, trace.plane.normal, ent->v.velocity, backoff);
|
|
|
|
// stop if on ground
|
|
if (trace.plane.normal[2] > 0.7)
|
|
{
|
|
#ifdef QUAKE2
|
|
if (ent->v.velocity[2] < 60 || (ent->v.movetype != MOVETYPE_BOUNCE && ent->v.movetype != MOVETYPE_BOUNCEMISSILE))
|
|
#else
|
|
if (ent->v.velocity[2] < 60 || ent->v.movetype != MOVETYPE_BOUNCE)
|
|
#endif
|
|
{
|
|
ent->v.flags = (int)ent->v.flags | FL_ONGROUND;
|
|
ent->v.groundentity = EDICT_TO_PROG(trace.ent);
|
|
VectorCopy (vec3_origin, ent->v.velocity);
|
|
VectorCopy (vec3_origin, ent->v.avelocity);
|
|
}
|
|
}
|
|
|
|
// check for in water
|
|
SV_CheckWaterTransition (ent);
|
|
}
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
STEPPING MOVEMENT
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
/*
|
|
=============
|
|
SV_Physics_Step
|
|
|
|
Monsters freefall when they don't have a ground entity, otherwise
|
|
all movement is done with discrete steps.
|
|
|
|
This is also used for objects that have become still on the ground, but
|
|
will fall if the floor is pulled out from under them.
|
|
=============
|
|
*/
|
|
#ifdef QUAKE2
|
|
void SV_Physics_Step (edict_t *ent)
|
|
{
|
|
qboolean wasonground;
|
|
qboolean inwater;
|
|
qboolean hitsound = false;
|
|
float *vel;
|
|
float speed, newspeed, control;
|
|
float friction;
|
|
edict_t *groundentity;
|
|
|
|
groundentity = PROG_TO_EDICT(ent->v.groundentity);
|
|
if ((int)groundentity->v.flags & FL_CONVEYOR)
|
|
VectorScale(groundentity->v.movedir, groundentity->v.speed, ent->v.basevelocity);
|
|
else
|
|
VectorCopy(vec_origin, ent->v.basevelocity);
|
|
//@@
|
|
pr_global_struct->time = sv.time;
|
|
pr_global_struct->self = EDICT_TO_PROG(ent);
|
|
PF_WaterMove();
|
|
|
|
SV_CheckVelocity (ent);
|
|
|
|
wasonground = (int)ent->v.flags & FL_ONGROUND;
|
|
// ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND;
|
|
|
|
// add gravity except:
|
|
// flying monsters
|
|
// swimming monsters who are in the water
|
|
inwater = SV_CheckWater(ent);
|
|
if (! wasonground)
|
|
if (!((int)ent->v.flags & FL_FLY))
|
|
if (!(((int)ent->v.flags & FL_SWIM) && (ent->v.waterlevel > 0)))
|
|
{
|
|
if (ent->v.velocity[2] < sv_gravity.value*-0.1)
|
|
hitsound = true;
|
|
if (!inwater)
|
|
SV_AddGravity (ent);
|
|
}
|
|
|
|
if (!VectorCompare(ent->v.velocity, vec_origin) || !VectorCompare(ent->v.basevelocity, vec_origin))
|
|
{
|
|
ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND;
|
|
// apply friction
|
|
// let dead monsters who aren't completely onground slide
|
|
if (wasonground)
|
|
if (!(ent->v.health <= 0.0 && !SV_CheckBottom(ent)))
|
|
{
|
|
vel = ent->v.velocity;
|
|
speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
|
|
if (speed)
|
|
{
|
|
friction = sv_friction.value;
|
|
|
|
control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
|
|
newspeed = speed - host_frametime*control*friction;
|
|
|
|
if (newspeed < 0)
|
|
newspeed = 0;
|
|
newspeed /= speed;
|
|
|
|
vel[0] = vel[0] * newspeed;
|
|
vel[1] = vel[1] * newspeed;
|
|
}
|
|
}
|
|
|
|
VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
SV_FlyMove (ent, host_frametime, NULL);
|
|
VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity);
|
|
|
|
// determine if it's on solid ground at all
|
|
{
|
|
vec3_t mins, maxs, point;
|
|
int x, y;
|
|
|
|
VectorAdd (ent->v.origin, ent->v.mins, mins);
|
|
VectorAdd (ent->v.origin, ent->v.maxs, maxs);
|
|
|
|
point[2] = mins[2] - 1;
|
|
for (x=0 ; x<=1 ; x++)
|
|
for (y=0 ; y<=1 ; y++)
|
|
{
|
|
point[0] = x ? maxs[0] : mins[0];
|
|
point[1] = y ? maxs[1] : mins[1];
|
|
if (SV_PointContents (point) == CONTENTS_SOLID)
|
|
{
|
|
ent->v.flags = (int)ent->v.flags | FL_ONGROUND;
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
SV_LinkEdict (ent, true);
|
|
|
|
if ((int)ent->v.flags & FL_ONGROUND)
|
|
if (!wasonground)
|
|
if (hitsound)
|
|
SV_StartSound (ent, 0, "demon/dland2.wav", 255, 1);
|
|
}
|
|
|
|
// regular thinking
|
|
SV_RunThink (ent);
|
|
SV_CheckWaterTransition (ent);
|
|
}
|
|
#else
|
|
void SV_Physics_Step (edict_t *ent)
|
|
{
|
|
qboolean hitsound;
|
|
|
|
// freefall if not onground
|
|
if ( ! ((int)ent->v.flags & (FL_ONGROUND | FL_FLY | FL_SWIM) ) )
|
|
{
|
|
if (ent->v.velocity[2] < sv_gravity.value*-0.1)
|
|
hitsound = true;
|
|
else
|
|
hitsound = false;
|
|
|
|
SV_AddGravity (ent);
|
|
SV_CheckVelocity (ent);
|
|
SV_FlyMove (ent, host_frametime, NULL);
|
|
SV_LinkEdict (ent, true);
|
|
|
|
if ( (int)ent->v.flags & FL_ONGROUND ) // just hit ground
|
|
{
|
|
if (hitsound)
|
|
SV_StartSound (ent, 0, "demon/dland2.wav", 255, 1);
|
|
}
|
|
}
|
|
|
|
// regular thinking
|
|
SV_RunThink (ent);
|
|
|
|
SV_CheckWaterTransition (ent);
|
|
}
|
|
#endif
|
|
|
|
//============================================================================
|
|
|
|
/*
|
|
================
|
|
SV_Physics
|
|
|
|
================
|
|
*/
|
|
void SV_Physics (void)
|
|
{
|
|
int i;
|
|
edict_t *ent;
|
|
|
|
// let the progs know that a new frame has started
|
|
pr_global_struct->self = EDICT_TO_PROG(sv.edicts);
|
|
pr_global_struct->other = EDICT_TO_PROG(sv.edicts);
|
|
pr_global_struct->time = sv.time;
|
|
PR_ExecuteProgram (pr_global_struct->StartFrame);
|
|
|
|
//SV_CheckAllEnts ();
|
|
|
|
//
|
|
// treat each object in turn
|
|
//
|
|
ent = sv.edicts;
|
|
for (i=0 ; i<sv.num_edicts ; i++, ent = NEXT_EDICT(ent))
|
|
{
|
|
if (ent->free)
|
|
continue;
|
|
|
|
if (pr_global_struct->force_retouch)
|
|
{
|
|
SV_LinkEdict (ent, true); // force retouch even for stationary
|
|
}
|
|
|
|
if (i > 0 && i <= svs.maxclients)
|
|
SV_Physics_Client (ent, i);
|
|
else if (ent->v.movetype == MOVETYPE_PUSH)
|
|
SV_Physics_Pusher (ent);
|
|
else if (ent->v.movetype == MOVETYPE_NONE)
|
|
SV_Physics_None (ent);
|
|
#ifdef QUAKE2
|
|
else if (ent->v.movetype == MOVETYPE_FOLLOW)
|
|
SV_Physics_Follow (ent);
|
|
#endif
|
|
else if (ent->v.movetype == MOVETYPE_NOCLIP)
|
|
SV_Physics_Noclip (ent);
|
|
else if (ent->v.movetype == MOVETYPE_STEP)
|
|
SV_Physics_Step (ent);
|
|
else if (ent->v.movetype == MOVETYPE_TOSS
|
|
|| ent->v.movetype == MOVETYPE_BOUNCE
|
|
#ifdef QUAKE2
|
|
|| ent->v.movetype == MOVETYPE_BOUNCEMISSILE
|
|
#endif
|
|
|| ent->v.movetype == MOVETYPE_FLY
|
|
|| ent->v.movetype == MOVETYPE_FLYMISSILE)
|
|
SV_Physics_Toss (ent);
|
|
else
|
|
Sys_Error ("SV_Physics: bad movetype %i", (int)ent->v.movetype);
|
|
}
|
|
|
|
if (pr_global_struct->force_retouch)
|
|
pr_global_struct->force_retouch--;
|
|
|
|
sv.time += host_frametime;
|
|
}
|
|
|
|
|
|
#ifdef QUAKE2
|
|
trace_t SV_Trace_Toss (edict_t *ent, edict_t *ignore)
|
|
{
|
|
edict_t tempent, *tent;
|
|
trace_t trace;
|
|
vec3_t move;
|
|
vec3_t end;
|
|
double save_frametime;
|
|
// extern particle_t *active_particles, *free_particles;
|
|
// particle_t *p;
|
|
|
|
|
|
save_frametime = host_frametime;
|
|
host_frametime = 0.05;
|
|
|
|
memcpy(&tempent, ent, sizeof(edict_t));
|
|
tent = &tempent;
|
|
|
|
while (1)
|
|
{
|
|
SV_CheckVelocity (tent);
|
|
SV_AddGravity (tent);
|
|
VectorMA (tent->v.angles, host_frametime, tent->v.avelocity, tent->v.angles);
|
|
VectorScale (tent->v.velocity, host_frametime, move);
|
|
VectorAdd (tent->v.origin, move, end);
|
|
trace = SV_Move (tent->v.origin, tent->v.mins, tent->v.maxs, end, MOVE_NORMAL, tent);
|
|
VectorCopy (trace.endpos, tent->v.origin);
|
|
|
|
// p = free_particles;
|
|
// if (p)
|
|
// {
|
|
// free_particles = p->next;
|
|
// p->next = active_particles;
|
|
// active_particles = p;
|
|
//
|
|
// p->die = 256;
|
|
// p->color = 15;
|
|
// p->type = pt_static;
|
|
// VectorCopy (vec3_origin, p->vel);
|
|
// VectorCopy (tent->v.origin, p->org);
|
|
// }
|
|
|
|
if (trace.ent)
|
|
if (trace.ent != ignore)
|
|
break;
|
|
}
|
|
// p->color = 224;
|
|
host_frametime = save_frametime;
|
|
return trace;
|
|
}
|
|
#endif
|