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fteqw/engine/server/sv_phys.c
Spoike e8c1f669cc Couple of changes. 
D3D now supports hlsl shaders. Much functionality is still missing, but sky and water surfaces are in.
IQM models now supported.
Engine physics code is now potentially callable from csqc, but there are some issues which need to be resolved before its enabled.
FTEQCC has had some pointer/struct/array functionality improved. Complex trees can now be navigated properly.
added r_dumpshaders command to dump internal glsl scripts for editing.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3896 fc73d0e0-1445-4013-8a0c-d673dee63da5
2011-09-03 03:49:43 +00:00

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/*
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 "qwsvdef.h"
#ifndef CLIENTONLY
#include "pr_common.h"
#ifdef _MSC_VER
#pragma message("fixme, fix this up before adding to csqc")
#endif
extern nqglobalvars_t realpr_nqglobal_struct;
/*
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_maxvelocity = SCVAR("sv_maxvelocity","2000");
cvar_t sv_gravity = SCVAR( "sv_gravity", "800");
cvar_t sv_stopspeed = SCVAR( "sv_stopspeed", "100");
cvar_t sv_maxspeed = SCVAR( "sv_maxspeed", "320");
cvar_t sv_spectatormaxspeed = SCVAR( "sv_spectatormaxspeed", "500");
cvar_t sv_accelerate = SCVAR( "sv_accelerate", "10");
cvar_t sv_airaccelerate = SCVAR( "sv_airaccelerate", "0.7");
cvar_t sv_wateraccelerate = SCVAR( "sv_wateraccelerate", "10");
cvar_t sv_friction = SCVAR( "sv_friction", "4");
cvar_t sv_waterfriction = SCVAR( "sv_waterfriction", "4");
cvar_t sv_gameplayfix_noairborncorpse = SCVAR( "sv_gameplayfix_noairborncorpse", "0");
cvar_t sv_sound_watersplash = CVAR( "sv_sound_watersplash", "misc/h2ohit1.wav");
cvar_t sv_sound_land = CVAR( "sv_sound_land", "demon/dland2.wav");
cvar_t pm_ktjump = SCVARF("pm_ktjump", "0", CVAR_SERVERINFO);
cvar_t pm_bunnyspeedcap = SCVARF("pm_bunnyspeedcap", "0", CVAR_SERVERINFO);
cvar_t pm_slidefix = SCVARF("pm_slidefix", "0", CVAR_SERVERINFO);
cvar_t pm_slidyslopes = SCVARF("pm_slidyslopes", "0", CVAR_SERVERINFO);
cvar_t pm_airstep = SCVARF("pm_airstep", "0", CVAR_SERVERINFO);
cvar_t pm_walljump = SCVARF("pm_walljump", "0", CVAR_SERVERINFO);
cvar_t pm_stepheight = CVARAF("pm_stepheight", "18",
"sv_stepheight", CVAR_SERVERINFO);
extern cvar_t sv_nomsec;
#define MOVE_EPSILON 0.01
static void SV_Physics_Toss (edict_t *ent);
// warning: <20>SV_CheckAllEnts<74> defined but not used
/*
================
SV_CheckAllEnts
================
static void SV_CheckAllEnts (void)
{
int e;
edict_t *check;
// see if any solid entities are inside the final position
for (e=1 ; e<sv.world.num_edicts ; e++)
{
check = EDICT_NUM(svprogfuncs, e);
if (check->isfree)
continue;
if (check->v->movetype == MOVETYPE_PUSH
|| check->v->movetype == MOVETYPE_NONE
|| check->v->movetype == MOVETYPE_FOLLOW
|| check->v->movetype == MOVETYPE_NOCLIP
|| check->v->movetype == MOVETYPE_ANGLENOCLIP)
continue;
if (World_TestEntityPosition (&sv.world, (wedict_t*)check))
Con_Printf ("entity in invalid position\n");
}
}
*/
/*
================
SV_CheckVelocity
================
*/
void WPhys_CheckVelocity (world_t *w, wedict_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_GetString(w->progs, 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_GetString(w->progs, ent->v->classname));
ent->v->origin[i] = 0;
}
}
if (Length(ent->v->velocity) > sv_maxvelocity.value)
{
// Con_DPrintf("Slowing %s\n", PR_GetString(w->progs, ent->v->classname));
VectorScale (ent->v->velocity, sv_maxvelocity.value/Length(ent->v->velocity), ent->v->velocity);
}
}
/*
=============
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 WPhys_RunThink (world_t *w, wedict_t *ent)
{
float thinktime;
if (sv_nomsec.ival>=2) //try and imitate nq as closeley as possible
{
thinktime = ent->v->nextthink;
if (thinktime <= 0 || thinktime > w->physicstime + host_frametime)
return true;
if (thinktime < w->physicstime)
thinktime = w->physicstime; // 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;
#if 1
*w->g.time = thinktime;
w->Event_Think(w, ent);
#else
pr_global_struct->time = thinktime;
pr_global_struct->self = EDICT_TO_PROG(w->progs, ent);
pr_global_struct->other = EDICT_TO_PROG(w->progs, w->edicts);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_Think();
else
#endif
PR_ExecuteProgram (svprogfuncs, ent->v->think);
#endif
return !ent->isfree;
}
do
{
thinktime = ent->v->nextthink;
if (thinktime <= 0)
return true;
if (thinktime > w->physicstime + host_frametime)
return true;
if (thinktime < w->physicstime)
thinktime = w->physicstime; // 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;
#if 1
*w->g.time = thinktime;
w->Event_Think(w, ent);
#else
pr_global_struct->time = thinktime;
pr_global_struct->self = EDICT_TO_PROG(w->progs, ent);
pr_global_struct->other = EDICT_TO_PROG(w->progs, w->edicts);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_Think();
else
#endif
PR_ExecuteProgram (svprogfuncs, ent->v->think);
#endif
if (ent->isfree)
return false;
if (ent->v->nextthink <= thinktime) //hmm... infinate loop was possible here.. Quite a few non-QW mods do this.
return true;
} while (1);
return true;
}
/*
==================
SV_Impact
Two entities have touched, so run their touch functions
==================
*/
static void WPhys_Impact (world_t *w, wedict_t *e1, wedict_t *e2)
{
*w->g.time = w->physicstime;
if (e1->v->touch && e1->v->solid != SOLID_NOT)
{
w->Event_Touch(w, e1, e2);
}
if (e2->v->touch && e2->v->solid != SOLID_NOT)
{
w->Event_Touch(w, e2, e1);
}
}
/*
==================
ClipVelocity
Slide off of the impacting object
==================
*/
#define STOP_EPSILON 0.1
//courtesy of darkplaces, it's just more efficient.
static void ClipVelocity (vec3_t in, vec3_t normal, vec3_t out, float overbounce)
{
int i;
float backoff;
backoff = -DotProduct (in, normal) * overbounce;
VectorMA(in, backoff, normal, out);
for (i = 0;i < 3;i++)
if (out[i] > -STOP_EPSILON && out[i] < STOP_EPSILON)
out[i] = 0;
}
/*
============
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
static int WPhys_FlyMove (world_t *w, wedict_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;
vec3_t diff;
vec3_t startorg;
numbumps = 4;
blocked = 0;
VectorCopy (ent->v->velocity, original_velocity);
VectorCopy (ent->v->velocity, primal_velocity);
numplanes = 0;
time_left = time;
VectorCopy (ent->v->origin, startorg);
for (bumpcount=0 ; bumpcount<numbumps ; bumpcount++)
{
for (i=0 ; i<3 ; i++)
end[i] = ent->v->origin[i] + time_left * ent->v->velocity[i];
trace = World_Move (w, ent->v->origin, ent->v->mins, ent->v->maxs, end, false, (wedict_t*)ent);
if (trace.startsolid)
{ // entity is trapped in another solid
VectorClear (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)
SV_Error ("SV_FlyMove: !trace.ent");
if (trace.plane.normal[2] > 0.7)
{
blocked |= 1; // floor
if (((edict_t *)trace.ent)->v->solid == SOLID_BSP)
{
ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
ent->v->groundentity = EDICT_TO_PROG(w->progs, trace.ent);
}
}
if (!trace.plane.normal[2])
{
blocked |= 2; // step
if (steptrace)
*steptrace = trace; // save for player extrafriction
}
//
// run the impact function
//
WPhys_Impact (w, ent, trace.ent);
if (ent->isfree)
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
VectorClear (ent->v->velocity);
if (steptrace)
*steptrace = trace; // save for player extrafriction
return 3;
}
if (0)
{
ClipVelocity(ent->v->velocity, trace.plane.normal, ent->v->velocity, 1);
break;
}
else
{
if (numplanes)
{
VectorSubtract(planes[0], trace.plane.normal, diff);
if (Length(diff) < 0.01)
continue; //hit this plane already
}
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
// Con_Printf ("%5.1f %5.1f %5.1f ",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
VectorCopy (new_velocity, ent->v->velocity);
// Con_Printf ("%5.1f %5.1f %5.1f\n",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
}
else
{ // go along the crease
if (numplanes != 2)
{
// Con_Printf ("clip velocity, numplanes == %i\n",numplanes);
// Con_Printf ("%5.1f %5.1f %5.1f ",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
VectorClear (ent->v->velocity);
// Con_Printf ("%5.1f %5.1f %5.1f\n",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
return 7;
}
// Con_Printf ("%5.1f %5.1f %5.1f ",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
CrossProduct (planes[0], planes[1], dir);
VectorNormalize(dir); //fixes slow falling in corners
d = DotProduct (dir, ent->v->velocity);
VectorScale (dir, d, ent->v->velocity);
// Con_Printf ("%5.1f %5.1f %5.1f\n",ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
}
}
//
// 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)
{
VectorClear (ent->v->velocity);
return blocked;
}
}
return blocked;
}
/*
============
SV_AddGravity
============
*/
static void WPhys_AddGravity (wedict_t *ent, float scale)
{
if (!scale && progstype != PROG_QW)
scale = 1;
ent->v->velocity[2] -= scale * sv_gravity.value/*movevars.gravity*/ * host_frametime;
}
/*
===============================================================================
PUSHMOVE
===============================================================================
*/
/*
============
SV_PushEntity
Does not change the entities velocity at all
============
*/
static trace_t WPhys_PushEntity (world_t *w, wedict_t *ent, vec3_t push, unsigned int traceflags)
{
trace_t trace;
vec3_t end;
VectorAdd (ent->v->origin, push, end);
if ((int)ent->v->flags&FL_LAGGEDMOVE)
traceflags |= MOVE_LAGGED;
if (ent->v->movetype == MOVETYPE_FLYMISSILE)
trace = World_Move (w, ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_MISSILE|traceflags, (wedict_t*)ent);
else if (ent->v->solid == SOLID_TRIGGER || ent->v->solid == SOLID_NOT)
// only clip against bmodels
trace = World_Move (w, ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NOMONSTERS|traceflags, (wedict_t*)ent);
else
trace = World_Move (w, ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL|traceflags, (wedict_t*)ent);
// if (trace.ent)
// VectorMA(trace.endpos, sv_impactpush.value, trace.plane.normal, ent->v->origin);
// else
VectorCopy (trace.endpos, ent->v->origin);
World_LinkEdict (w, ent, true);
if (trace.ent)
WPhys_Impact (w, ent, trace.ent);
return trace;
}
typedef struct
{
wedict_t *ent;
vec3_t origin;
vec3_t angles;
// float deltayaw;
} pushed_t;
static pushed_t pushed[MAX_EDICTS], *pushed_p;
/*
============
SV_Push
Objects need to be moved back on a failed push,
otherwise riders would continue to slide.
============
*/
static qboolean WPhys_PushAngles (world_t *w, wedict_t *pusher, vec3_t move, vec3_t amove)
{
int i, e;
wedict_t *check, *block;
vec3_t mins, maxs;
float oldsolid;
pushed_t *p;
vec3_t org, org2, move2, forward, right, up;
pushed_p = pushed;
// find the bounding box
for (i=0 ; i<3 ; i++)
{
mins[i] = pusher->v->absmin[i] + move[i];
maxs[i] = pusher->v->absmax[i] + move[i];
}
// we need this for pushing things later
VectorNegate (amove, org);
AngleVectors (org, forward, right, up);
// save the pusher's original position
pushed_p->ent = pusher;
VectorCopy (pusher->v->origin, pushed_p->origin);
VectorCopy (pusher->v->angles, pushed_p->angles);
// if (pusher->client)
// pushed_p->deltayaw = pusher->client->ps.pmove.delta_angles[YAW];
pushed_p++;
// move the pusher to it's final position
VectorAdd (pusher->v->origin, move, pusher->v->origin);
VectorAdd (pusher->v->angles, amove, pusher->v->angles);
World_LinkEdict (w, pusher, false);
// see if any solid entities are inside the final position
for (e = 1; e < w->num_edicts; e++)
{
check = WEDICT_NUM(w->progs, e);
if (check->isfree)
continue;
if (check->v->movetype == MOVETYPE_PUSH
|| check->v->movetype == MOVETYPE_NONE
|| check->v->movetype == MOVETYPE_NOCLIP
|| check->v->movetype == MOVETYPE_ANGLENOCLIP)
continue;
#if 1
oldsolid = pusher->v->solid;
pusher->v->solid = SOLID_NOT;
block = World_TestEntityPosition (w, check);
pusher->v->solid = oldsolid;
if (block)
continue;
#else
if (!check->area.prev)
continue; // not linked in anywhere
#endif
// if the entity is standing on the pusher, it will definitely be moved
if ( ! ( ((int)check->v->flags & FL_ONGROUND)
&& PROG_TO_WEDICT(w->progs, check->v->groundentity) == pusher) )
{
// see if the ent needs to be tested
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 (!World_TestEntityPosition (w, (wedict_t*)check))
continue;
}
if ((pusher->v->movetype == MOVETYPE_PUSH) || (PROG_TO_WEDICT(w->progs, check->v->groundentity) == pusher))
{
// move this entity
pushed_p->ent = check;
VectorCopy (check->v->origin, pushed_p->origin);
VectorCopy (check->v->angles, pushed_p->angles);
pushed_p++;
// try moving the contacted entity
VectorAdd (check->v->origin, move, check->v->origin);
// if (check->client)
// { // FIXME: doesn't rotate monsters?
// check->client->ps.pmove.delta_angles[YAW] += amove[YAW];
// }
VectorAdd (check->v->angles, amove, check->v->angles);
// figure movement due to the pusher's amove
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, move2);
VectorAdd (check->v->origin, move2, check->v->origin);
check->v->flags = (int)check->v->flags & ~FL_ONGROUND;
// may have pushed them off an edge
if (PROG_TO_WEDICT(w->progs, check->v->groundentity) != pusher)
check->v->groundentity = 0;
block = World_TestEntityPosition (w, check);
if (!block)
{ // pushed ok
World_LinkEdict (w, check, false);
// impact?
continue;
}
// if it is ok to leave in the old position, do it
// this is only relevent for riding entities, not pushed
// FIXME: this doesn't acount for rotation
VectorSubtract (check->v->origin, move, check->v->origin);
block = World_TestEntityPosition (w, check);
if (!block)
{
pushed_p--;
continue;
}
}
// if it is sitting on top. Do not block.
if (check->v->mins[0] == check->v->maxs[0])
{
World_LinkEdict (w, check, false);
continue;
}
// Con_Printf("Pusher hit %s\n", PR_GetString(w->progs, check->v->classname));
if (pusher->v->blocked)
{
*w->g.self = EDICT_TO_PROG(w->progs, pusher);
*w->g.other = EDICT_TO_PROG(w->progs, check);
#ifdef VM_Q1
if (w==&sv.world && svs.gametype == GT_Q1QVM)
Q1QVM_Blocked();
else
#endif
PR_ExecuteProgram (w->progs, pusher->v->blocked);
}
// move back any entities we already moved
// go backwards, so if the same entity was pushed
// twice, it goes back to the original position
for (p=pushed_p-1 ; p>=pushed ; p--)
{
VectorCopy (p->origin, p->ent->v->origin);
VectorCopy (p->angles, p->ent->v->angles);
// if (p->ent->client)
// {
// p->ent->client->ps.pmove.delta_angles[YAW] = p->deltayaw;
// }
World_LinkEdict (w, p->ent, false);
}
return false;
}
//FIXME: is there a better way to handle this?
// see if anything we moved has touched a trigger
for (p=pushed_p-1 ; p>=pushed ; p--)
World_TouchLinks (w, p->ent, w->areanodes);
return true;
}
/*
============
SV_Push
============
*/
static qboolean WPhys_Push (world_t *w, wedict_t *pusher, vec3_t move, vec3_t amove)
{
int i, e;
wedict_t *check, *block;
vec3_t mins, maxs;
vec3_t pushorig;
int num_moved;
wedict_t *moved_edict[MAX_EDICTS];
vec3_t moved_from[MAX_EDICTS];
float oldsolid;
if (amove[0] || amove[1] || amove[2])
{
return WPhys_PushAngles(w, pusher, move, amove);
}
for (i=0 ; i<3 ; i++)
{
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);
World_LinkEdict (w, pusher, false);
// see if any solid entities are inside the final position
num_moved = 0;
for (e=1 ; e<w->num_edicts ; e++)
{
check = WEDICT_NUM(w->progs, e);
if (check->isfree)
continue;
if (check->v->movetype == MOVETYPE_PUSH
|| check->v->movetype == MOVETYPE_NONE
|| check->v->movetype == MOVETYPE_FOLLOW
|| check->v->movetype == MOVETYPE_NOCLIP
|| check->v->movetype == MOVETYPE_ANGLENOCLIP)
continue;
// if the entity is standing on the pusher, it will definately be moved
if ( ! ( ((int)check->v->flags & FL_ONGROUND)
&&
PROG_TO_WEDICT(w->progs, 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 (!World_TestEntityPosition (w, check))
continue;
}
oldsolid = pusher->v->solid;
pusher->v->solid = SOLID_NOT;
block = World_TestEntityPosition (w, check);
pusher->v->solid = oldsolid;
if (block)
continue;
VectorCopy (check->v->origin, moved_from[num_moved]);
moved_edict[num_moved] = check;
num_moved++;
// check->v->flags = (int)check->v->flags & ~FL_ONGROUND;
// try moving the contacted entity
VectorAdd (check->v->origin, move, check->v->origin);
block = World_TestEntityPosition (w, check);
if (!block)
{ // pushed ok
World_LinkEdict (w, check, false);
continue;
}
// if it is ok to leave in the old position, do it
VectorSubtract (check->v->origin, move, check->v->origin);
block = World_TestEntityPosition (w, check);
if (!block)
{
//if leaving it where it was, allow it to drop to the floor again (useful for plats that move downward)
check->v->flags = (int)check->v->flags & ~FL_ONGROUND;
num_moved--;
continue;
}
// if it is still inside the pusher, block
if (check->v->mins[0] == check->v->maxs[0])
{
World_LinkEdict (w, check, false);
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);
World_LinkEdict (w, check, false);
continue;
}
VectorCopy (pushorig, pusher->v->origin);
World_LinkEdict (w, pusher, false);
// if the pusher has a "blocked" function, call it
// otherwise, just stay in place until the obstacle is gone
if (pusher->v->blocked)
{
*w->g.self = EDICT_TO_PROG(w->progs, pusher);
*w->g.other = EDICT_TO_PROG(w->progs, check);
#ifdef VM_Q1
if (w==&sv.world && svs.gametype == GT_Q1QVM)
Q1QVM_Blocked();
else
#endif
PR_ExecuteProgram (w->progs, 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);
World_LinkEdict (w, moved_edict[i], false);
}
return false;
}
return true;
}
/*
============
SV_PushMove
============
*/
static void WPhys_PushMove (world_t *w, wedict_t *pusher, float movetime)
{
int i;
vec3_t move;
vec3_t amove;
if (!pusher->v->velocity[0] && !pusher->v->velocity[1] && !pusher->v->velocity[2]
&& !pusher->v->avelocity[0] && !pusher->v->avelocity[1] && !pusher->v->avelocity[2])
{
pusher->v->ltime += movetime;
return;
}
for (i=0 ; i<3 ; i++)
{
move[i] = pusher->v->velocity[i] * movetime;
amove[i] = pusher->v->avelocity[i] * movetime;
}
if (WPhys_Push (w, pusher, move, amove))
pusher->v->ltime += movetime;
}
/*
================
SV_Physics_Pusher
================
*/
static void WPhys_Physics_Pusher (world_t *w, wedict_t *ent)
{
float thinktime;
float oldltime;
float movetime;
vec3_t oldorg, move;
vec3_t oldang, amove;
float l;
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)
{
WPhys_PushMove (w, ent, movetime); // advances ent->v->ltime if not blocked
}
if (thinktime > oldltime && thinktime <= ent->v->ltime)
{
VectorCopy (ent->v->origin, oldorg);
VectorCopy (ent->v->angles, oldang);
ent->v->nextthink = 0;
#if 1
*w->g.time = w->physicstime;
w->Event_Think(w, ent);
#else
pr_global_struct->time = sv.world.physicstime;
pr_global_struct->self = EDICT_TO_PROG(w->progs, ent);
pr_global_struct->other = EDICT_TO_PROG(w->progs, w->edicts);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_Think();
else
#endif
PR_ExecuteProgram (svprogfuncs, ent->v->think);
#endif
if (ent->isfree)
return;
VectorSubtract (ent->v->origin, oldorg, move);
VectorSubtract (ent->v->angles, oldang, amove);
l = Length(move)+Length(amove);
if (l > 1.0/64)
{
// Con_Printf ("**** snap: %f\n", Length (l));
VectorCopy (oldorg, ent->v->origin);
VectorCopy (oldang, ent->v->angles);
WPhys_Push (w, ent, move, amove);
}
}
}
/*
=============
SV_Physics_Follow
Entities that are "stuck" to another entity
=============
*/
static void WPhys_Physics_Follow (world_t *w, wedict_t *ent)
{
vec3_t vf, vr, vu, angles, v;
wedict_t *e;
// regular thinking
if (!WPhys_RunThink (w, ent))
return;
// LordHavoc: implemented rotation on MOVETYPE_FOLLOW objects
e = PROG_TO_WEDICT(w->progs, ent->v->aiment);
if (e->v->angles[0] == ent->xv->punchangle[0] && e->v->angles[1] == ent->xv->punchangle[1] && e->v->angles[2] == ent->xv->punchangle[2])
{
// quick case for no rotation
VectorAdd(e->v->origin, ent->v->view_ofs, ent->v->origin);
}
else
{
angles[0] = -ent->xv->punchangle[0];
angles[1] = ent->xv->punchangle[1];
angles[2] = ent->xv->punchangle[2];
AngleVectors (angles, vf, vr, vu);
v[0] = ent->v->view_ofs[0] * vf[0] + ent->v->view_ofs[1] * vr[0] + ent->v->view_ofs[2] * vu[0];
v[1] = ent->v->view_ofs[0] * vf[1] + ent->v->view_ofs[1] * vr[1] + ent->v->view_ofs[2] * vu[1];
v[2] = ent->v->view_ofs[0] * vf[2] + ent->v->view_ofs[1] * vr[2] + ent->v->view_ofs[2] * vu[2];
angles[0] = -e->v->angles[0];
angles[1] = e->v->angles[1];
angles[2] = e->v->angles[2];
AngleVectors (angles, vf, vr, vu);
ent->v->origin[0] = v[0] * vf[0] + v[1] * vf[1] + v[2] * vf[2] + e->v->origin[0];
ent->v->origin[1] = v[0] * vr[0] + v[1] * vr[1] + v[2] * vr[2] + e->v->origin[1];
ent->v->origin[2] = v[0] * vu[0] + v[1] * vu[1] + v[2] * vu[2] + e->v->origin[2];
}
VectorAdd (e->v->angles, ent->v->v_angle, ent->v->angles);
World_LinkEdict (w, ent, true);
}
/*
=============
SV_Physics_Noclip
A moving object that doesn't obey physics
=============
*/
static void WPhys_Physics_Noclip (world_t *w, wedict_t *ent)
{
// regular thinking
if (!WPhys_RunThink (w, 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);
World_LinkEdict (w, (wedict_t*)ent, false);
}
/*
==============================================================================
TOSS / BOUNCE
==============================================================================
*/
/*
=============
SV_CheckWaterTransition
=============
*/
static void WPhys_CheckWaterTransition (world_t *w, wedict_t *ent)
{
int cont;
cont = World_PointContents (w, ent->v->origin);
//needs to be q1 progs compatible
if (cont & FTECONTENTS_LAVA)
cont = Q1CONTENTS_LAVA;
else if (cont & FTECONTENTS_SLIME)
cont = Q1CONTENTS_SLIME;
else if (cont & FTECONTENTS_WATER)
cont = Q1CONTENTS_WATER;
else
cont = Q1CONTENTS_EMPTY;
if (!ent->v->watertype)
{ // just spawned here
ent->v->watertype = cont;
ent->v->waterlevel = 1;
return;
}
if (cont <= Q1CONTENTS_WATER)
{
if (ent->v->watertype == Q1CONTENTS_EMPTY && *sv_sound_watersplash.string)
{ // just crossed into water
w->Event_Sound(ent, 0, sv_sound_watersplash.string, 255, 1, 0);
}
ent->v->watertype = cont;
ent->v->waterlevel = 1;
}
else
{
if (ent->v->watertype != Q1CONTENTS_EMPTY && *sv_sound_watersplash.string)
{ // just crossed into open
w->Event_Sound(ent, 0, sv_sound_watersplash.string, 255, 1, 0);
}
ent->v->watertype = Q1CONTENTS_EMPTY;
ent->v->waterlevel = cont;
}
}
/*
=============
SV_Physics_Toss
Toss, bounce, and fly movement. When onground, do nothing.
=============
*/
static void WPhys_Physics_Toss (world_t *w, wedict_t *ent)
{
trace_t trace;
vec3_t move;
float backoff;
vec3_t temporg;
WPhys_CheckVelocity (w, ent);
// regular thinking
if (!WPhys_RunThink (w, ent))
return;
// if onground, return without moving
if ( ((int)ent->v->flags & FL_ONGROUND) )
{
if (ent->v->velocity[2] >= (1.0f/32.0f))
ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
else
{
if (sv_gameplayfix_noairborncorpse.value)
{
wedict_t *onent;
onent = PROG_TO_WEDICT(w->progs, ent->v->groundentity);
if (!onent->isfree)
return; //don't drop if our fround is still valid
}
else
return; //don't drop, even if the item we were on was removed (certain dm maps do this for q3 style stuff).
}
}
// add gravity
if (ent->v->movetype != MOVETYPE_FLY
&& ent->v->movetype != MOVETYPE_FLYMISSILE
&& ent->v->movetype != MOVETYPE_BOUNCEMISSILE
&& ent->v->movetype != MOVETYPE_H2SWIM)
WPhys_AddGravity (ent, 1.0);
// move angles
VectorMA (ent->v->angles, host_frametime, ent->v->avelocity, ent->v->angles);
// move origin
VectorScale (ent->v->velocity, host_frametime, move);
VectorCopy(ent->v->origin, temporg);
VectorCopy(temporg, ent->v->origin);
trace = WPhys_PushEntity (w, ent, move, (sv_antilag.ival==2)?MOVE_LAGGED:0);
if (trace.allsolid)
trace.fraction = 0;
if (trace.fraction == 1)
return;
if (ent->isfree)
return;
VectorCopy(trace.endpos, move);
if (ent->v->movetype == MOVETYPE_BOUNCE)
backoff = 1.5;
else if (ent->v->movetype == MOVETYPE_BOUNCEMISSILE)
{
// if (progstype == PROG_H2 && ent->v->solid == SOLID_PHASEH2 && ((int)((wedict_t*)trace.ent)->v->flags & (FL_MONSTER|FL_CLIENT)))
// backoff = 0;
// else
backoff = 2;
}
else
backoff = 1;
if (backoff)
ClipVelocity (ent->v->velocity, trace.plane.normal, ent->v->velocity, backoff);
// stop if on ground
if ((trace.plane.normal[2] > 0.7) && (ent->v->movetype != MOVETYPE_BOUNCEMISSILE))
{
if (ent->v->velocity[2] < 60 || ent->v->movetype != MOVETYPE_BOUNCE )
{
ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
ent->v->groundentity = EDICT_TO_PROG(w->progs, trace.ent);
VectorClear (ent->v->velocity);
VectorClear (ent->v->avelocity);
}
}
// check for in water
WPhys_CheckWaterTransition (w, 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.
FIXME: is this true?
=============
*/
static void WPhys_Physics_Step (world_t *w, wedict_t *ent)
{
qboolean hitsound;
qboolean freefall;
int fl = ent->v->flags;
if (ent->v->velocity[2] >= (1.0 / 32.0) && (fl & FL_ONGROUND))
{
fl &= ~FL_ONGROUND;
ent->v->flags = fl;
}
// frefall if not onground
if (fl & (FL_ONGROUND | FL_FLY))
freefall = false;
else
freefall = true;
if (fl & FL_SWIM)
freefall = ent->v->waterlevel <= 0;
if (freefall)
{
hitsound = ent->v->velocity[2] < movevars.gravity*-0.1;
WPhys_AddGravity (ent, 1.0);
WPhys_CheckVelocity (w, ent);
WPhys_FlyMove (w, ent, host_frametime, NULL);
World_LinkEdict (w, ent, true);
if ( (int)ent->v->flags & FL_ONGROUND ) // just hit ground
{
if (hitsound)
{
w->Event_Sound(ent, 0, sv_sound_land.string, 255, 1, 0);
}
}
}
// regular thinking
WPhys_RunThink (w, ent);
WPhys_CheckWaterTransition (w, ent);
}
//============================================================================
void SV_ProgStartFrame (void)
{
// let the progs know that a new frame has started
pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->other = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->time = sv.world.physicstime;
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_StartFrame();
else
#endif
PR_ExecuteProgram (svprogfuncs, pr_global_struct->StartFrame);
}
/*
=============
SV_CheckStuck
This is a big hack to try and fix the rare case of getting stuck in the world
clipping hull.
=============
*/
static void WPhys_CheckStuck (world_t *w, wedict_t *ent)
{
int i, j;
int z;
vec3_t org;
//return;
if (!World_TestEntityPosition (w, ent))
{
VectorCopy (ent->v->origin, ent->v->oldorigin);
return;
}
VectorCopy (ent->v->origin, org);
VectorCopy (ent->v->oldorigin, ent->v->origin);
if (!World_TestEntityPosition (w, ent))
{
Con_DPrintf ("Unstuck.\n");
World_LinkEdict (w, ent, true);
return;
}
for (z=0 ; z < movevars.stepheight ; 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 (!World_TestEntityPosition (w, ent))
{
Con_DPrintf ("Unstuck.\n");
World_LinkEdict (w, ent, true);
return;
}
}
VectorCopy (org, ent->v->origin);
Con_DPrintf ("player is stuck.\n");
}
/*
=============
SV_CheckWater
=============
*/
static qboolean WPhys_CheckWater (world_t *w, wedict_t *ent)
{
vec3_t point;
int cont;
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 = Q1CONTENTS_EMPTY;
cont = World_PointContents (w, point);
if (cont & FTECONTENTS_FLUID)
{
if (cont & FTECONTENTS_LAVA)
ent->v->watertype = Q1CONTENTS_LAVA;
else if (cont & FTECONTENTS_SLIME)
ent->v->watertype = Q1CONTENTS_SLIME;
else if (cont & FTECONTENTS_WATER)
ent->v->watertype = Q1CONTENTS_WATER;
else
ent->v->watertype = Q1CONTENTS_SKY;
ent->v->waterlevel = 1;
point[2] = ent->v->origin[2] + (ent->v->mins[2] + ent->v->maxs[2])*0.5;
cont = World_PointContents (w, point);
if (cont & FTECONTENTS_FLUID)
{
ent->v->waterlevel = 2;
point[2] = ent->v->origin[2] + ent->v->view_ofs[2];
cont = World_PointContents (w, point);
if (cont & FTECONTENTS_FLUID)
ent->v->waterlevel = 3;
}
}
return ent->v->waterlevel > 1;
}
/*
============
SV_WallFriction
============
*/
static void WPhys_WallFriction (wedict_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 || IS_NAN(d))
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);
}
// warning: <20>SV_TryUnstick<63> defined but not used
/*
=====================
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...
======================
static 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);
VectorClear (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, MOVE_NORMAL);
// 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);
}
VectorClear (ent->v->velocity);
return 7; // still not moving
}
*/
/*
=====================
SV_WalkMove
Only used by players
======================
*/
#if 0
#define SMSTEPSIZE 4
static 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)ent->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] = movevars.stepheight;
downmove[2] = -movevars.stepheight + 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);
// Con_Printf("Try unstick fwd\n");
}
}
// extra friction based on view angle
if ( clip & 2 )
{
vec3_t lastpos, lastvel, lastdown;
// Con_Printf("couldn't do it\n");
//retry with a smaller step (allows entering smaller areas with a step of 4)
VectorCopy (downmove, lastdown);
VectorCopy (ent->v->origin, lastpos);
VectorCopy (ent->v->velocity, lastvel);
//
// 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] = SMSTEPSIZE;
downmove[2] = -SMSTEPSIZE + 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);
// Con_Printf("Try unstick up\n");
}
}
if ( fabs(oldorg[1] - ent->v->origin[1])+fabs(oldorg[0] - ent->v->origin[0]) < fabs(oldorg[1] - lastpos[1])+fabs(oldorg[1] - lastpos[1]))
{ // stepping up didn't make any progress
//go back
VectorCopy (lastdown, downmove);
VectorCopy (lastpos, ent->v->origin);
VectorCopy (lastvel, ent->v->velocity);
SV_WallFriction (ent, &steptrace);
// Con_Printf("wall friction\n");
}
else if (clip & 2)
{
SV_WallFriction (ent, &steptrace);
// Con_Printf("wall friction 2\n");
}
}
// 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(svprogfuncs, 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);
// Con_Printf("down not good\n");
}
}
#else
// 1/32 epsilon to keep floating point happy
#define DIST_EPSILON (0.03125)
static int WPhys_SetOnGround (world_t *w, wedict_t *ent)
{
vec3_t end;
trace_t trace;
if ((int)ent->v->flags & FL_ONGROUND)
return 1;
end[0] = ent->v->origin[0];
end[1] = ent->v->origin[1];
end[2] = ent->v->origin[2] - 1;
trace = World_Move(w, ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, (wedict_t*)ent);
if (trace.fraction <= DIST_EPSILON && trace.plane.normal[2] >= 0.7)
{
ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
ent->v->groundentity = EDICT_TO_PROG(w->progs, trace.ent);
return 1;
}
return 0;
}
static void WPhys_WalkMove (world_t *w, wedict_t *ent)
{
int clip, oldonground, originalmove_clip, originalmove_flags, originalmove_groundentity;
vec3_t upmove, downmove, start_origin, start_velocity, originalmove_origin, originalmove_velocity;
trace_t downtrace, steptrace;
WPhys_CheckVelocity(w, ent);
// 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, start_origin);
VectorCopy (ent->v->velocity, start_velocity);
clip = WPhys_FlyMove (w, ent, host_frametime, NULL);
WPhys_SetOnGround (w, ent);
WPhys_CheckVelocity(w, ent);
VectorCopy(ent->v->origin, originalmove_origin);
VectorCopy(ent->v->velocity, originalmove_velocity);
originalmove_clip = clip;
originalmove_flags = (int)ent->v->flags;
originalmove_groundentity = ent->v->groundentity;
if ((int)ent->v->flags & FL_WATERJUMP)
return;
// if (sv_nostep.value)
// return;
// if move didn't block on a step, return
if (clip & 2)
{
// if move was not trying to move into the step, return
if (fabs(start_velocity[0]) < 0.03125 && fabs(start_velocity[1]) < 0.03125)
return;
if (ent->v->movetype != MOVETYPE_FLY)
{
// return if gibbed by a trigger
if (ent->v->movetype != MOVETYPE_WALK)
return;
// only step up while jumping if that is enabled
// if (!(sv_jumpstep.value && sv_gameplayfix_stepwhilejumping.value))
if (!oldonground && ent->v->waterlevel == 0)
return;
}
// try moving up and forward to go up a step
// back to start pos
VectorCopy (start_origin, ent->v->origin);
VectorCopy (start_velocity, ent->v->velocity);
// move up
VectorClear (upmove);
upmove[2] = movevars.stepheight;
// FIXME: don't link?
WPhys_PushEntity(w, ent, upmove, MOVE_NORMAL);
// move forward
ent->v->velocity[2] = 0;
clip = WPhys_FlyMove (w, ent, host_frametime, &steptrace);
ent->v->velocity[2] += start_velocity[2];
WPhys_CheckVelocity(w, ent);
// check for stuckness, possibly due to the limited precision of floats
// in the clipping hulls
if (clip
&& fabs(originalmove_origin[1] - ent->v->origin[1]) < 0.03125
&& fabs(originalmove_origin[0] - ent->v->origin[0]) < 0.03125)
{
// Con_Printf("wall\n");
// stepping up didn't make any progress, revert to original move
VectorCopy(originalmove_origin, ent->v->origin);
VectorCopy(originalmove_velocity, ent->v->velocity);
//clip = originalmove_clip;
ent->v->flags = originalmove_flags;
ent->v->groundentity = originalmove_groundentity;
// now try to unstick if needed
//clip = SV_TryUnstick (ent, oldvel);
return;
}
//Con_Printf("step - ");
// extra friction based on view angle
if (clip & 2)// && sv_wallfriction.value)
{
// Con_Printf("wall\n");
WPhys_WallFriction (ent, &steptrace);
}
}
else if (/*!sv_gameplayfix_stepdown.integer || */!oldonground || start_velocity[2] > 0 || ((int)ent->v->flags & FL_ONGROUND) || ent->v->waterlevel >= 2)
return;
// move down
VectorClear (downmove);
downmove[2] = -movevars.stepheight + start_velocity[2]*host_frametime;
// FIXME: don't link?
downtrace = WPhys_PushEntity (w, ent, downmove, MOVE_NORMAL);
if (downtrace.fraction < 1 && downtrace.plane.normal[2] > 0.7)
{
// LordHavoc: disabled this check so you can walk on monsters/players
//if (ent->v->solid == SOLID_BSP)
{
//Con_Printf("onground\n");
ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
ent->v->groundentity = EDICT_TO_PROG(w->progs, downtrace.ent);
}
}
else
{
//Con_Printf("slope\n");
// 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(originalmove_origin, ent->v->origin);
VectorCopy(originalmove_velocity, ent->v->velocity);
//clip = originalmove_clip;
ent->v->flags = originalmove_flags;
ent->v->groundentity = originalmove_groundentity;
}
WPhys_SetOnGround (w, ent);
WPhys_CheckVelocity(w, ent);
}
#endif
static void WPhys_MoveChain(world_t *w, wedict_t *ent, wedict_t *movechain, float *initial_origin, float *initial_angle)
{
qboolean callfunc;
if ((callfunc=DotProduct(ent->v->origin, initial_origin)) || DotProduct(ent->v->angles, initial_angle))
{
vec3_t moveang, moveorg;
int i;
VectorSubtract(ent->v->angles, initial_angle, moveang);
VectorSubtract(ent->v->origin, initial_origin, moveorg);
for(i=16;i && movechain != w->edicts && !movechain->isfree;i--, movechain = PROG_TO_WEDICT(w->progs, movechain->xv->movechain))
{
if ((int)movechain->v->flags & FL_MOVECHAIN_ANGLE)
VectorAdd(movechain->v->angles, moveang, movechain->v->angles);
VectorAdd(movechain->v->origin, moveorg, movechain->v->origin);
if (movechain->xv->chainmoved && callfunc)
{
pr_global_struct->self = EDICT_TO_PROG(w->progs, movechain);
pr_global_struct->other = EDICT_TO_PROG(w->progs, ent);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_ChainMoved();
else
#endif
PR_ExecuteProgram(w->progs, movechain->xv->chainmoved);
}
}
}
}
#define FL_JUMPRELEASED 4096
/*
================
SV_RunEntity
================
*/
void WPhys_RunEntity (world_t *w, wedict_t *ent)
{
wedict_t *movechain;
edict_t *svent = (edict_t*)ent;
vec3_t initial_origin = {0},initial_angle = {0}; // warning: <20>initial_?[?]<5D> may be used uninitialized in this function
if (ent->entnum > 0 && ent->entnum <= sv.allocated_client_slots && w == &sv.world)
{ //a client woo.
qboolean readyforjump = false;
if ( svs.clients[ent->entnum-1].state < cs_spawned )
return; // unconnected slot
if (svs.clients[ent->entnum-1].protocol == SCP_BAD)
svent->v->fixangle = 0; //bots never get fixangle cleared otherwise
host_client = &svs.clients[ent->entnum-1];
SV_ClientThink();
if (progstype == PROG_QW) //detect if the mod should do a jump
if (svent->v->button2)
if ((int)svent->v->flags & FL_JUMPRELEASED)
readyforjump = true;
//
// call standard client pre-think
//
pr_global_struct->time = sv.world.physicstime;
pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, ent);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_PlayerPreThink();
else
#endif
if (pr_global_struct->PlayerPreThink)
PR_ExecuteProgram (svprogfuncs, pr_global_struct->PlayerPreThink);
if (readyforjump) //qw progs can't jump for themselves...
{
if (!svent->v->button2 && !((int)ent->v->flags & FL_JUMPRELEASED) && ent->v->velocity[2] <= 0)
svent->v->velocity[2] += 270;
}
}
else
{
if ((unsigned int)ent->v->lastruntime == svs.framenum)
return;
ent->v->lastruntime = svs.framenum;
svent = NULL;
}
movechain = PROG_TO_WEDICT(w->progs, ent->xv->movechain);
if (movechain != w->edicts)
{
VectorCopy(ent->v->origin,initial_origin);
VectorCopy(ent->v->angles,initial_angle);
}
switch ( (int)ent->v->movetype)
{
case MOVETYPE_PUSH:
WPhys_Physics_Pusher (w, ent);
break;
case MOVETYPE_NONE:
if (!WPhys_RunThink (w, ent))
return;
break;
case MOVETYPE_NOCLIP:
case MOVETYPE_ANGLENOCLIP:
WPhys_Physics_Noclip (w, ent);
break;
case MOVETYPE_STEP:
case MOVETYPE_H2PUSHPULL:
WPhys_Physics_Step (w, ent);
break;
case MOVETYPE_FOLLOW:
WPhys_Physics_Follow (w, ent);
break;
case MOVETYPE_FLY:
case MOVETYPE_H2SWIM:
case MOVETYPE_TOSS:
case MOVETYPE_BOUNCE:
case MOVETYPE_BOUNCEMISSILE:
case MOVETYPE_FLYMISSILE:
WPhys_Physics_Toss (w, ent);
break;
case MOVETYPE_WALK:
if (!WPhys_RunThink (w, ent))
return;
if (!WPhys_CheckWater (w, ent) && ! ((int)ent->v->flags & FL_WATERJUMP) )
WPhys_AddGravity (ent, ent->xv->gravity);
WPhys_CheckStuck (w, ent);
WPhys_WalkMove (w, ent);
if (!(ent->entnum > 0 && ent->entnum <= sv.allocated_client_slots))
World_LinkEdict (w, ent, true);
break;
case MOVETYPE_PHYSICS:
if (WPhys_RunThink(w, ent))
World_LinkEdict (w, ent, true);
break;
default:
SV_Error ("SV_Physics: bad movetype %i on %s", (int)ent->v->movetype, PR_GetString(w->progs, ent->v->classname));
}
if (movechain != w->edicts)
{
WPhys_MoveChain(w, ent, movechain, initial_origin, initial_angle);
}
if (svent)
{
World_LinkEdict (w, (wedict_t*)svent, true);
pr_global_struct->time = w->physicstime;
pr_global_struct->self = EDICT_TO_PROG(w->progs, ent);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
Q1QVM_PostThink();
else
#endif
{
if (pr_global_struct->PlayerPostThink)
PR_ExecuteProgram (w->progs, pr_global_struct->PlayerPostThink);
}
}
}
/*
================
SV_RunNewmis
================
*/
void WPhys_RunNewmis (world_t *w)
{
wedict_t *ent;
if (!w->g.newmis) //newmis variable is not exported.
return;
if (sv_nomsec.ival >= 2)
return;
if (!*w->g.newmis)
return;
ent = PROG_TO_WEDICT(w->progs, *w->g.newmis);
host_frametime = 0.05;
*w->g.newmis = 0;
WPhys_RunEntity (w, ent);
host_frametime = *w->g.frametime;
}
trace_t WPhys_Trace_Toss (world_t *w, wedict_t *tossent, wedict_t *ignore)
{
int i;
float gravity;
vec3_t move, end;
trace_t trace;
vec3_t origin, velocity;
// this has to fetch the field from the original edict, since our copy is truncated
gravity = tossent->xv->gravity;
if (!gravity)
gravity = 1.0;
gravity *= sv_gravity.value * 0.05;
VectorCopy (tossent->v->origin, origin);
VectorCopy (tossent->v->velocity, velocity);
WPhys_CheckVelocity (w, tossent);
for (i = 0;i < 200;i++) // LordHavoc: sanity check; never trace more than 10 seconds
{
velocity[2] -= gravity;
VectorScale (velocity, 0.05, move);
VectorAdd (origin, move, end);
trace = World_Move (w, origin, tossent->v->mins, tossent->v->maxs, end, MOVE_NORMAL, tossent);
VectorCopy (trace.endpos, origin);
if (trace.fraction < 1 && trace.ent && trace.ent != ignore)
break;
if (Length(velocity) > sv_maxvelocity.value)
{
// Con_DPrintf("Slowing %s\n", PR_GetString(w->progs, tossent->v->classname));
VectorScale (velocity, sv_maxvelocity.value/Length(velocity), velocity);
}
}
trace.fraction = 0; // not relevant
return trace;
}
/*
Run an individual physics frame. This might be run multiple times in one frame if we're running slow, or not at all.
*/
void World_Physics_Frame(world_t *w)
{
int i;
qboolean retouch;
wedict_t *ent;
retouch = (w->g.force_retouch && (*w->g.force_retouch >= 1));
//
// treat each object in turn
// even the world gets a chance to think
//
for (i=0 ; i<w->num_edicts ; i++)
{
ent = (wedict_t*)EDICT_NUM(w->progs, i);
if (ent->isfree)
continue;
if (retouch)
World_LinkEdict (w, ent, true); // force retouch even for stationary
if (i > 0 && i <= sv.allocated_client_slots && w == &sv.world)
{
if (!svs.clients[i-1].isindependant)
{
WPhys_RunEntity (w, ent);
WPhys_RunNewmis (w);
}
// else
// World_LinkEdict(w, (wedict_t*)ent, true);
continue; // clients are run directly from packets
}
WPhys_RunEntity (w, ent);
WPhys_RunNewmis (w);
if (((!ent->solidtype) != (!(qbyte)ent->v->solid)) && !ent->isfree)
{
Con_DPrintf("Entity \"%s\" improperly changed solid type\n", PR_GetString(w->progs, ent->v->classname));
World_LinkEdict (w, ent, true); // a change of solidity should always relink the edict. someone messed up.
}
}
if (retouch)
w->g.force_retouch-=1;
}
/*
================
SV_Physics
================
*/
qboolean SV_Physics (void)
{
int i;
qboolean moved = false;
int maxtics;
if (svs.gametype != GT_PROGS && svs.gametype != GT_Q1QVM && svs.gametype != GT_HALFLIFE) //make tics multiples of sv_maxtic (defaults to 0.1)
{
host_frametime = sv.time - sv.world.physicstime;
if (host_frametime<0)
{
if (host_frametime < -1)
sv.world.physicstime = sv.time;
host_frametime = 0;
}
if (svs.gametype != GT_QUAKE3)
if (host_frametime < sv_maxtic.value && realtime)
{
// sv.time+=host_frametime;
return false; //don't bother with the whole server thing for a bit longer
}
if (host_frametime > sv_maxtic.value)
host_frametime = sv_maxtic.value;
sv.world.physicstime = sv.time;
switch(svs.gametype)
{
#ifdef Q2SERVER
case GT_QUAKE2:
ge->RunFrame();
break;
#endif
#ifdef Q3SERVER
case GT_QUAKE3:
SVQ3_RunFrame();
break;
#endif
default:
break;
}
return true;
}
if (svs.gametype != GT_HALFLIFE && /*sv.botsonthemap &&*/ progstype == PROG_QW)
{
//DP_SV_BOTCLIENT - make the bots move with qw physics.
//They only move when there arn't any players on the server, but they should move at the right kind of speed if there are... hopefully
//they might just be a bit lagged. they will at least be as smooth as other players are.
usercmd_t ucmd;
static int old_bot_time; //I hate using floats for timers.
client_t *oldhost;
edict_t *oldplayer;
host_frametime = (Sys_Milliseconds() - old_bot_time) / 1000.0f;
if (1 || host_frametime >= 1 / 72.0f)
{
memset(&ucmd, 0, sizeof(ucmd));
old_bot_time = Sys_Milliseconds();
for (i = 1; i <= sv.allocated_client_slots; i++)
{
if (svs.clients[i-1].state && svs.clients[i-1].protocol == SCP_BAD)
{ //then this is a bot
oldhost = host_client;
oldplayer = sv_player;
host_client = &svs.clients[i-1];
sv_player = host_client->edict;
SV_PreRunCmd();
#ifdef SERVERONLY
ucmd.msec = host_frametime*1000;
#else
// FIXME: Something very weird is going on here!
ucmd.msec = 0;
#endif
ucmd.angles[0] = (int)(sv_player->v->angles[0] * (65535/360.0f));
ucmd.angles[1] = (int)(sv_player->v->angles[1] * (65535/360.0f));
ucmd.angles[2] = (int)(sv_player->v->angles[2] * (65535/360.0f));
ucmd.forwardmove = sv_player->xv->movement[0];
ucmd.sidemove = sv_player->xv->movement[1];
ucmd.upmove = sv_player->xv->movement[2];
ucmd.buttons = (sv_player->v->button0?1:0) | (sv_player->v->button2?2:0);
svs.clients[i-1].lastcmd = ucmd; //allow the other clients to predict this bot.
SV_RunCmd(&ucmd, false);
SV_PostRunCmd();
host_client = oldhost;
sv_player = oldplayer;
}
}
old_bot_time = Sys_Milliseconds();
}
}
maxtics = sv_limittics.ival;
// don't bother running a frame if sys_ticrate seconds haven't passed
while (1)
{
host_frametime = sv.time - sv.world.physicstime;
if (host_frametime < 0)
{
sv.world.physicstime = sv.time;
break;
}
if (host_frametime <= 0 || host_frametime < sv_mintic.value)
break;
if (host_frametime > sv_maxtic.value)
{
if (maxtics-- <= 0)
{
//timewarp, as we're running too slowly
sv.world.physicstime = sv.time;
break;
}
host_frametime = sv_maxtic.value;
}
if (!host_frametime)
continue;
sv.world.physicstime += host_frametime;
moved = true;
#ifdef HLSERVER
if (svs.gametype == GT_HALFLIFE)
{
SVHL_RunFrame();
continue;
}
#endif
pr_global_struct->frametime = host_frametime;
SV_ProgStartFrame ();
PRSV_RunThreads();
#ifdef USEODE
World_ODE_Frame(&sv.world, host_frametime, sv_gravity.value);
#endif
World_Physics_Frame(&sv.world);
#ifdef VM_Q1
if (svs.gametype == GT_Q1QVM)
{
pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->other = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->time = sv.world.physicstime;
Q1QVM_EndFrame();
}
else
#endif
if (EndFrameQC)
{
pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->other = EDICT_TO_PROG(svprogfuncs, sv.world.edicts);
pr_global_struct->time = sv.world.physicstime;
PR_ExecuteProgram (svprogfuncs, EndFrameQC);
}
NPP_Flush(); //flush it just in case there was an error and we stopped preparsing. This is only really needed while debugging.
}
return moved;
}
void SV_SetMoveVars(void)
{
movevars.gravity = sv_gravity.value;
movevars.stopspeed = sv_stopspeed.value;
movevars.maxspeed = sv_maxspeed.value;
movevars.spectatormaxspeed = sv_spectatormaxspeed.value;
movevars.accelerate = sv_accelerate.value;
movevars.airaccelerate = sv_airaccelerate.value;
movevars.wateraccelerate = sv_wateraccelerate.value;
movevars.friction = sv_friction.value;
movevars.waterfriction = sv_waterfriction.value;
movevars.entgravity = 1.0;
if (*pm_stepheight.string)
movevars.stepheight = pm_stepheight.value;
else
movevars.stepheight = PM_DEFAULTSTEPHEIGHT;
}
#endif
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