forked from KolibriOS/kolibrios
1618 lines
36 KiB
C
1618 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
|