]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_phys.c
moved brushq3.submodel to brush, removed brushq3.data_thismodel (instead looking...
[xonotic/darkplaces.git] / sv_phys.c
index 44daad484fb76a6f71e365262ace067955a68b8b..59c02e1e804403b2ecb503c717f6f8a41ead2791 100644 (file)
--- a/sv_phys.c
+++ b/sv_phys.c
@@ -47,6 +47,8 @@ cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0"};
 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18"};
 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "1"};
 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1"};
+cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "1"};
+cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0"};
 
 #define        MOVE_EPSILON    0.01
 
@@ -57,6 +59,8 @@ void SV_Phys_Init (void)
        Cvar_RegisterVariable(&sv_stepheight);
        Cvar_RegisterVariable(&sv_jumpstep);
        Cvar_RegisterVariable(&sv_wallfriction);
+       Cvar_RegisterVariable(&sv_newflymove);
+       Cvar_RegisterVariable(&sv_freezenonclients);
 }
 
 /*
@@ -73,7 +77,7 @@ void SV_CheckAllEnts (void)
        check = NEXT_EDICT(sv.edicts);
        for (e = 1;e < sv.num_edicts;e++, check = NEXT_EDICT(check))
        {
-               if (check->free)
+               if (check->e->free)
                        continue;
                if (check->v->movetype == MOVETYPE_PUSH
                 || check->v->movetype == MOVETYPE_NONE
@@ -82,7 +86,7 @@ void SV_CheckAllEnts (void)
                        continue;
 
                if (SV_TestEntityPosition (check))
-                       Con_Print("entity in invalid position\n");
+                       Con_Print("entity in invalid position\n");
        }
 }
 
@@ -103,12 +107,12 @@ void SV_CheckVelocity (edict_t *ent)
        {
                if (IS_NAN(ent->v->velocity[i]))
                {
-                       Con_Printf ("Got a NaN velocity on %s\n", PR_GetString(ent->v->classname));
+                       Con_Printf("Got a NaN velocity on %s\n", PR_GetString(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(ent->v->classname));
+                       Con_Printf("Got a NaN origin on %s\n", PR_GetString(ent->v->classname));
                        ent->v->origin[i] = 0;
                }
        }
@@ -151,8 +155,8 @@ qboolean SV_RunThink (edict_t *ent)
        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, "NULL think function");
-       return !ent->free;
+       PR_ExecuteProgram (ent->v->think, "QC function self.think is missing");
+       return !ent->e->free;
 }
 
 /*
@@ -174,14 +178,14 @@ void SV_Impact (edict_t *e1, edict_t *e2)
        {
                pr_global_struct->self = EDICT_TO_PROG(e1);
                pr_global_struct->other = EDICT_TO_PROG(e2);
-               PR_ExecuteProgram (e1->v->touch, "");
+               PR_ExecuteProgram (e1->v->touch, "QC function self.touch is missing");
        }
 
        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_ExecuteProgram (e2->v->touch, "QC function self.touch is missing");
        }
 
        pr_global_struct->self = old_self;
@@ -198,30 +202,17 @@ 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)
+void ClipVelocity (vec3_t in, vec3_t normal, vec3_t out, float overbounce)
 {
-       int i, blocked;
-       float backoff, change;
-
-       blocked = 0;
-       // flag if it's a floor
-       if (normal[2] > 0)
-               blocked |= 1;
-       // flag if it's a step
-       if (!normal[2])
-               blocked |= 2;
+       int i;
+       float backoff;
 
-       backoff = DotProduct (in, normal) * overbounce;
+       backoff = -DotProduct (in, normal) * overbounce;
+       VectorMA(in, backoff, normal, out);
 
        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;
 }
 
 
@@ -234,59 +225,97 @@ 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
+If stepnormal is not NULL, the plane normal of any vertical wall hit will be stored
 ============
 */
 // LordHavoc: increased from 5 to 20
 #define MAX_CLIP_PLANES 20
-int SV_FlyMove (edict_t *ent, float time, trace_t *steptrace)
+int SV_FlyMove (edict_t *ent, float time, float *stepnormal)
 {
-       int i, j, blocked, impact, numplanes, bumpcount, numbumps;
+       int blocked, bumpcount;
+       edict_t *hackongroundentity;
+       int i, j, impact, numplanes;
        float d, time_left;
        vec3_t dir, end, planes[MAX_CLIP_PLANES], primal_velocity, original_velocity, new_velocity;
        trace_t trace;
-
-       numbumps = 4;
-
        blocked = 0;
-       VectorCopy (ent->v->velocity, original_velocity);
-       VectorCopy (ent->v->velocity, primal_velocity);
+       VectorCopy(ent->v->velocity, original_velocity);
+       VectorCopy(ent->v->velocity, primal_velocity);
        numplanes = 0;
-
        time_left = time;
-
-       for (bumpcount=0 ; bumpcount<numbumps ; bumpcount++)
+       hackongroundentity = NULL;
+       for (bumpcount = 0;bumpcount < 8;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];
+               VectorMA(ent->v->origin, time_left, ent->v->velocity, end);
+               trace = SV_Move(ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+#if 0
+               //if (trace.fraction < 0.002)
+               {
+#if 1
+                       vec3_t start;
+                       trace_t testtrace;
+                       VectorCopy(ent->v->origin, start);
+                       start[2] += 3;//0.03125;
+                       VectorMA(ent->v->origin, time_left, ent->v->velocity, end);
+                       end[2] += 3;//0.03125;
+                       testtrace = SV_Move(start, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+                       if (trace.fraction < testtrace.fraction && !testtrace.startsolid && (testtrace.fraction == 1 || DotProduct(trace.plane.normal, ent->v->velocity) < DotProduct(testtrace.plane.normal, ent->v->velocity)))
+                       {
+                               Con_Printf("got further (new %f > old %f)\n", testtrace.fraction, trace.fraction);
+                               trace = testtrace;
+                       }
+#endif
+#if 0
+                       //j = -1;
+                       for (i = 0;i < numplanes;i++)
+                       {
+                               VectorCopy(ent->v->origin, start);
+                               VectorMA(ent->v->origin, time_left, ent->v->velocity, end);
+                               VectorMA(start, 3, planes[i], start);
+                               VectorMA(end, 3, planes[i], end);
+                               testtrace = SV_Move(start, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+                               if (trace.fraction < testtrace.fraction)
+                               {
+                                       trace = testtrace;
+                                       VectorCopy(start, ent->v->origin);
+                                       //j = i;
+                               }
+                       }
+                       //if (j >= 0)
+                       //      VectorAdd(ent->v->origin, planes[j], start);
+#endif
+               }
+#endif
 
-               trace = SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+#if 0
+               Con_Printf("entity %i bump %i: velocity %f %f %f trace %f", ent - sv.edicts, bumpcount, ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2], trace.fraction);
+               if (trace.fraction < 1)
+                       Con_Printf(" : %f %f %f", trace.plane.normal[0], trace.plane.normal[1], trace.plane.normal[2]);
+               Con_Print("\n");
+#endif
 
-               if (trace.allsolid)
+               /*
+               if (trace.startsolid)
                {
                        // LordHavoc: note: this code is what makes entities stick in place if embedded in another object (which can be the world)
                        // 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;
-               }
+               */
 
                // break if it moved the entire distance
                if (trace.fraction == 1)
-                        break;
+               {
+                       VectorCopy(trace.endpos, ent->v->origin);
+                       break;
+               }
 
                if (!trace.ent)
-                       Host_Error ("SV_FlyMove: !trace.ent");
+                       Host_Error("SV_FlyMove: !trace.ent");
 
                if ((int) ent->v->flags & FL_ONGROUND)
                {
@@ -301,93 +330,163 @@ int SV_FlyMove (edict_t *ent, float time, trace_t *steptrace)
                else
                        impact = true;
 
-               if (trace.plane.normal[2] > 0.7)
+               if (trace.plane.normal[2])
                {
-                       // floor
-                       blocked |= 1;
-                       ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
-                       ent->v->groundentity = EDICT_TO_PROG(trace.ent);
+                       if (trace.plane.normal[2] > 0.7)
+                       {
+                               // floor
+                               blocked |= 1;
+                               ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
+                               ent->v->groundentity = EDICT_TO_PROG(trace.ent);
+                       }
+                       else if (trace.fraction < 0.001)
+                               hackongroundentity = trace.ent;
                }
-               if (!trace.plane.normal[2])
+               else
                {
                        // step
                        blocked |= 2;
                        // save the trace for player extrafriction
-                       if (steptrace)
-                               *steptrace = trace;
+                       if (stepnormal)
+                               VectorCopy(trace.plane.normal, stepnormal);
+               }
+
+               if (trace.fraction >= 0.001)
+               {
+                       // actually covered some distance
+                       VectorCopy(trace.endpos, ent->v->origin);
+                       VectorCopy(ent->v->velocity, original_velocity);
+                       numplanes = 0;
                }
 
                // run the impact function
                if (impact)
                {
-                       SV_Impact (ent, trace.ent);
+                       SV_Impact(ent, trace.ent);
 
                        // break if removed by the impact function
-                       if (ent->free)
+                       if (ent->e->free)
                                break;
                }
 
-
-               time_left -= time_left * trace.fraction;
+               time_left *= 1 - trace.fraction;
 
                // clipped to another plane
                if (numplanes >= MAX_CLIP_PLANES)
                {
                        // this shouldn't really happen
                        VectorClear(ent->v->velocity);
-                       return 3;
+                       blocked = 3;
+                       break;
                }
 
-               VectorCopy (trace.plane.normal, planes[numplanes]);
+               /*
+               for (i = 0;i < numplanes;i++)
+                       if (DotProduct(trace.plane.normal, planes[i]) > 0.99)
+                               break;
+               if (i < numplanes)
+               {
+                       VectorAdd(ent->v->velocity, trace.plane.normal, ent->v->velocity);
+                       continue;
+               }
+               */
+
+               VectorCopy(trace.plane.normal, planes[numplanes]);
                numplanes++;
 
-               // modify original_velocity so it parallels all of the clip planes
-               for (i=0 ; i<numplanes ; i++)
+               if (sv_newflymove.integer)
+                       ClipVelocity(ent->v->velocity, trace.plane.normal, ent->v->velocity, 1);
+               else
                {
-                       ClipVelocity (original_velocity, planes[i], new_velocity, 1);
-                       for (j=0 ; j<numplanes ; j++)
-                               if (j != i)
+                       // 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++)
                                {
-                                       // not ok
-                                       if (DotProduct (new_velocity, planes[j]) < 0)
-                                               break;
+                                       if (j != i)
+                                       {
+                                               // not ok
+                                               if (DotProduct(new_velocity, planes[j]) < 0)
+                                                       break;
+                                       }
                                }
-                       if (j == numplanes)
-                               break;
-               }
+                               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)
+                       if (i != numplanes)
                        {
-                               VectorClear(ent->v->velocity);
-                               return 7;
+                               // go along this plane
+                               VectorCopy(new_velocity, ent->v->velocity);
+                       }
+                       else
+                       {
+                               // go along the crease
+                               if (numplanes != 2)
+                               {
+                                       VectorClear(ent->v->velocity);
+                                       blocked = 7;
+                                       break;
+                               }
+                               CrossProduct(planes[0], planes[1], dir);
+                               // LordHavoc: thanks to taniwha of QuakeForge for pointing out this fix for slowed falling in corners
+                               VectorNormalize(dir);
+                               d = DotProduct(dir, ent->v->velocity);
+                               VectorScale(dir, d, ent->v->velocity);
                        }
-                       CrossProduct (planes[0], planes[1], dir);
-                       // LordHavoc: thanks to taniwha of QuakeForge for pointing out this fix for slowed falling in corners
-                       VectorNormalize(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)
+               if (DotProduct(ent->v->velocity, primal_velocity) <= 0)
                {
                        VectorClear(ent->v->velocity);
-                       return blocked;
+                       break;
                }
        }
 
+       //Con_Printf("entity %i final: blocked %i velocity %f %f %f\n", ent - sv.edicts, blocked, ent->v->velocity[0], ent->v->velocity[1], ent->v->velocity[2]);
+
+       /*
+       // FIXME: this doesn't work well at all, find another solution
+       // if player is ontop of a non-onground floor and made no progress,
+       // set onground anyway (this tends to happen if standing in a wedge)
+       if (bumpcount == 8 && hackongroundentity)
+       {
+               blocked |= 1;
+               ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
+               ent->v->groundentity = EDICT_TO_PROG(hackongroundentity);
+       }
+       */
+
+       /*
+       if ((blocked & 1) == 0 && bumpcount > 1)
+       {
+               // LordHavoc: fix the 'fall to your death in a wedge corner' glitch
+               // flag ONGROUND if there's ground under it
+               trace = SV_Move(ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+       }
+       */
        return blocked;
 }
 
+int SV_SetOnGround (edict_t *ent)
+{
+       vec3_t end;
+       trace_t trace;
+       if ((int)ent->v->flags & FL_ONGROUND)
+               return 1;
+       VectorSet(end, ent->v->origin[0], ent->v->origin[1], ent->v->origin[2] - 1);
+       trace = SV_Move(ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+       if (trace.fraction < 1 && trace.plane.normal[2] >= 0.7)
+       {
+               ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
+               ent->v->groundentity = EDICT_TO_PROG(trace.ent);
+               return 1;
+       }
+       return 0;
+}
 
 /*
 ============
@@ -424,24 +523,24 @@ SV_PushEntity
 Does not change the entities velocity at all
 ============
 */
-trace_t SV_PushEntity (edict_t *ent, vec3_t push, vec3_t pushangles)
+trace_t SV_PushEntity (edict_t *ent, vec3_t push)
 {
+       int type;
        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);
+               type = MOVE_MISSILE;
        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);
+               type = MOVE_NOMONSTERS; // only clip against bmodels
        else
-               trace = SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, end, MOVE_NORMAL, ent);
+               type = MOVE_NORMAL;
+
+       trace = SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, end, type, ent);
 
        VectorCopy (trace.endpos, ent->v->origin);
-       // FIXME: turn players specially
-       ent->v->angles[1] += trace.fraction * pushangles[1];
        SV_LinkEdict (ent, true);
 
        if (trace.ent && (!((int)ent->v->flags & FL_ONGROUND) || ent->v->groundentity != EDICT_TO_PROG(trace.ent)))
@@ -459,15 +558,21 @@ SV_PushMove
 trace_t SV_ClipMoveToEntity (edict_t *ent, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end);
 void SV_PushMove (edict_t *pusher, float movetime)
 {
-       int                     i, e, index;
-       edict_t         *check;
-       float           savesolid, movetime2, pushltime;
-       vec3_t          mins, maxs, move, move1, moveangle, pushorig, pushang, a, forward, left, up, org, org2;
-       int                     num_moved;
-       edict_t         *moved_edict[MAX_EDICTS];
-       vec3_t          moved_from[MAX_EDICTS], moved_fromangles[MAX_EDICTS];
-       model_t         *pushermodel;
-       trace_t         trace;
+       int i, e, index;
+       edict_t *check, *ed;
+       float savesolid, movetime2, pushltime;
+       vec3_t mins, maxs, move, move1, moveangle, pushorig, pushang, a, forward, left, up, org, org2;
+       int num_moved;
+       int numcheckentities;
+       static edict_t *checkentities[MAX_EDICTS];
+       model_t *pushermodel;
+       trace_t trace;
+
+       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;
+       }
 
        switch ((int) pusher->v->solid)
        {
@@ -482,20 +587,22 @@ void SV_PushMove (edict_t *pusher, float movetime)
        case SOLID_TRIGGER:
                VectorMA (pusher->v->origin, movetime, pusher->v->velocity, pusher->v->origin);
                VectorMA (pusher->v->angles, movetime, pusher->v->avelocity, pusher->v->angles);
+               pusher->v->angles[0] -= 360.0 * floor(pusher->v->angles[0] * (1.0 / 360.0));
+               pusher->v->angles[1] -= 360.0 * floor(pusher->v->angles[1] * (1.0 / 360.0));
+               pusher->v->angles[2] -= 360.0 * floor(pusher->v->angles[2] * (1.0 / 360.0));
                pusher->v->ltime += movetime;
                SV_LinkEdict (pusher, false);
                return;
        default:
-               Host_Error("SV_PushMove: unrecognized solid type %f\n", pusher->v->solid);
-       }
-       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;
+               Con_Printf("SV_PushMove: unrecognized solid type %f\n", pusher->v->solid);
                return;
        }
        index = (int) pusher->v->modelindex;
        if (index < 1 || index >= MAX_MODELS)
-               Host_Error("SV_PushMove: invalid modelindex %f\n", pusher->v->modelindex);
+       {
+               Con_Printf("SV_PushMove: invalid modelindex %f\n", pusher->v->modelindex);
+               return;
+       }
        pushermodel = sv.models[index];
 
        movetime2 = movetime;
@@ -568,34 +675,24 @@ void SV_PushMove (edict_t *pusher, float movetime)
 
 // 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))
+
+       numcheckentities = SV_EntitiesInBox(mins, maxs, MAX_EDICTS, checkentities);
+       for (e = 1;e < numcheckentities;e++)
        {
-               if (check->free)
-                       continue;
+               check = checkentities[e];
                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_NOCLIP
+                || check->v->movetype == MOVETYPE_FAKEPUSH)
                        continue;
 
                // if the entity is standing on the pusher, it will definitely 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->absmax[0] <= mins[0]
-                        || check->v->absmin[1] >= maxs[1]
-                        || check->v->absmax[1] <= mins[1]
-                        || check->v->absmin[2] >= maxs[2]
-                        || check->v->absmax[2] <= mins[2])
-                               continue;
-
-                       trace = SV_ClipMoveToEntity (pusher, check->v->origin, check->v->mins, check->v->maxs, check->v->origin);
-                       if (!trace.startsolid)
+                       if (!SV_ClipMoveToEntity(pusher, check->v->origin, check->v->mins, check->v->maxs, check->v->origin).startsolid)
                                continue;
-               }
 
-               if (forward[0] < 0.999f) // quick way to check if any rotation is used
+               if (forward[0] != 1) // quick way to check if any rotation is used
                {
                        VectorSubtract (check->v->origin, pusher->v->origin, org);
                        org2[0] = DotProduct (org, forward);
@@ -611,24 +708,26 @@ void SV_PushMove (edict_t *pusher, float movetime)
                if (check->v->movetype != MOVETYPE_WALK)
                        check->v->flags = (int)check->v->flags & ~FL_ONGROUND;
 
-               VectorCopy (check->v->origin, moved_from[num_moved]);
-               VectorCopy (check->v->angles, moved_fromangles[num_moved]);
-               moved_edict[num_moved++] = check;
+               VectorCopy (check->v->origin, check->e->moved_from);
+               VectorCopy (check->v->angles, check->e->moved_fromangles);
+               sv.moved_edicts[num_moved++] = check;
 
                // try moving the contacted entity
                pusher->v->solid = SOLID_NOT;
-               trace = SV_PushEntity (check, move, moveangle);
+               trace = SV_PushEntity (check, move);
+               // FIXME: turn players specially
+               check->v->angles[1] += trace.fraction * moveangle[1];
                pusher->v->solid = savesolid; // was SOLID_BSP
 
                // if it is still inside the pusher, block
-               if (SV_TestEntityPosition (check))
+               if (SV_ClipMoveToEntity(pusher, check->v->origin, check->v->mins, check->v->maxs, check->v->origin).startsolid)
                {
                        // try moving the contacted entity a tiny bit further to account for precision errors
                        pusher->v->solid = SOLID_NOT;
                        VectorScale(move, 0.1, move);
-                       trace = SV_PushEntity (check, move, vec3_origin);
+                       SV_PushEntity (check, move);
                        pusher->v->solid = savesolid;
-                       if (SV_TestEntityPosition (check))
+                       if (SV_ClipMoveToEntity(pusher, check->v->origin, check->v->mins, check->v->maxs, check->v->origin).startsolid)
                        {
                                // still inside pusher, so it's really blocked
 
@@ -649,11 +748,12 @@ void SV_PushMove (edict_t *pusher, float movetime)
                                SV_LinkEdict (pusher, false);
 
                                // move back any entities we already moved
-                               for (i=0 ; i<num_moved ; i++)
+                               for (i = 0;i < num_moved;i++)
                                {
-                                       VectorCopy (moved_from[i], moved_edict[i]->v->origin);
-                                       VectorCopy (moved_fromangles[i], moved_edict[i]->v->angles);
-                                       SV_LinkEdict (moved_edict[i], false);
+                                       ed = sv.moved_edicts[i];
+                                       VectorCopy (ed->e->moved_from, ed->v->origin);
+                                       VectorCopy (ed->e->moved_fromangles, ed->v->angles);
+                                       SV_LinkEdict (ed, false);
                                }
 
                                // if the pusher has a "blocked" function, call it, otherwise just stay in place until the obstacle is gone
@@ -661,12 +761,15 @@ void SV_PushMove (edict_t *pusher, float movetime)
                                {
                                        pr_global_struct->self = EDICT_TO_PROG(pusher);
                                        pr_global_struct->other = EDICT_TO_PROG(check);
-                                       PR_ExecuteProgram (pusher->v->blocked, "");
+                                       PR_ExecuteProgram (pusher->v->blocked, "QC function self.blocked is missing");
                                }
-                               return;
+                               break;
                        }
                }
        }
+       pusher->v->angles[0] -= 360.0 * floor(pusher->v->angles[0] * (1.0 / 360.0));
+       pusher->v->angles[1] -= 360.0 * floor(pusher->v->angles[1] * (1.0 / 360.0));
+       pusher->v->angles[2] -= 360.0 * floor(pusher->v->angles[2] * (1.0 / 360.0));
 }
 
 /*
@@ -701,11 +804,8 @@ void SV_Physics_Pusher (edict_t *ent)
                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, "NULL think function");
-               if (ent->free)
-                       return;
+               PR_ExecuteProgram (ent->v->think, "QC function self.think is missing");
        }
-
 }
 
 
@@ -740,7 +840,7 @@ void SV_CheckStuck (edict_t *ent)
        VectorCopy (ent->v->oldorigin, ent->v->origin);
        if (!SV_TestEntityPosition(ent))
        {
-               Con_DPrint("Unstuck.\n");
+               Con_DPrint("Unstuck.\n");
                SV_LinkEdict (ent, true);
                return;
        }
@@ -754,14 +854,14 @@ void SV_CheckStuck (edict_t *ent)
                                ent->v->origin[2] = org[2] + z;
                                if (!SV_TestEntityPosition(ent))
                                {
-                                       Con_DPrint("Unstuck.\n");
+                                       Con_DPrint("Unstuck.\n");
                                        SV_LinkEdict (ent, true);
                                        return;
                                }
                        }
 
        VectorCopy (org, ent->v->origin);
-       Con_DPrint("player is stuck.\n");
+       Con_DPrint("player is stuck.\n");
 }
 
 
@@ -781,19 +881,17 @@ qboolean SV_CheckWater (edict_t *ent)
 
        ent->v->waterlevel = 0;
        ent->v->watertype = CONTENTS_EMPTY;
-       cont = Mod_PointContents(point, sv.worldmodel);
-       if (cont <= CONTENTS_WATER)
+       cont = SV_PointSuperContents(point);
+       if (cont & (SUPERCONTENTS_LIQUIDSMASK))
        {
-               ent->v->watertype = cont;
+               ent->v->watertype = Mod_Q1BSP_NativeContentsFromSuperContents(NULL, cont);
                ent->v->waterlevel = 1;
                point[2] = ent->v->origin[2] + (ent->v->mins[2] + ent->v->maxs[2])*0.5;
-               cont = Mod_PointContents(point, sv.worldmodel);
-               if (cont <= CONTENTS_WATER)
+               if (SV_PointSuperContents(point) & (SUPERCONTENTS_LIQUIDSMASK))
                {
                        ent->v->waterlevel = 2;
                        point[2] = ent->v->origin[2] + ent->v->view_ofs[2];
-                       cont = Mod_PointContents(point, sv.worldmodel);
-                       if (cont <= CONTENTS_WATER)
+                       if (SV_PointSuperContents(point) & (SUPERCONTENTS_LIQUIDSMASK))
                                ent->v->waterlevel = 3;
                }
        }
@@ -807,25 +905,21 @@ SV_WallFriction
 
 ============
 */
-void SV_WallFriction (edict_t *ent, trace_t *trace)
+void SV_WallFriction (edict_t *ent, float *stepnormal)
 {
        float d, i;
        vec3_t forward, into, side;
 
        AngleVectors (ent->v->v_angle, forward, NULL, NULL);
-       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);
+       if ((d = DotProduct (stepnormal, forward) + 0.5) < 0)
+       {
+               // cut the tangential velocity
+               i = DotProduct (stepnormal, ent->v->velocity);
+               VectorScale (stepnormal, i, into);
+               VectorSubtract (ent->v->velocity, into, side);
+               ent->v->velocity[0] = side[0] * (1 + d);
+               ent->v->velocity[1] = side[1] * (1 + d);
+       }
 }
 
 /*
@@ -844,7 +938,6 @@ int SV_TryUnstick (edict_t *ent, vec3_t oldvel)
 {
        int i, clip;
        vec3_t oldorg, dir;
-       trace_t steptrace;
 
        VectorCopy (ent->v->origin, oldorg);
        VectorClear (dir);
@@ -864,17 +957,20 @@ int SV_TryUnstick (edict_t *ent, vec3_t oldvel)
                        case 7: dir[0] = -2; dir[1] = -2; break;
                }
 
-               SV_PushEntity (ent, dir, vec3_origin);
+               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);
+               clip = SV_FlyMove (ent, 0.1, NULL);
 
                if (fabs(oldorg[1] - ent->v->origin[1]) > 4
                 || fabs(oldorg[0] - ent->v->origin[0]) > 4)
+               {
+                       Con_DPrint("TryUnstick - success.\n");
                        return clip;
+               }
 
                // go back to the original pos and try again
                VectorCopy (oldorg, ent->v->origin);
@@ -882,6 +978,7 @@ int SV_TryUnstick (edict_t *ent, vec3_t oldvel)
 
        // still not moving
        VectorClear (ent->v->velocity);
+       Con_DPrint("TryUnstick - failure.\n");
        return 7;
 }
 
@@ -894,167 +991,132 @@ Only used by players
 */
 void SV_WalkMove (edict_t *ent)
 {
-       int clip, oldonground;
-       vec3_t upmove, downmove, oldorg, oldvel, nosteporg, nostepvel;
-       trace_t steptrace, downtrace;
+       int clip, oldonground, originalmove_clip, originalmove_flags, originalmove_groundentity;
+       vec3_t upmove, downmove, start_origin, start_velocity, stepnormal, originalmove_origin, originalmove_velocity;
+       trace_t downtrace;
+
+       SV_CheckVelocity(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, oldorg);
-       VectorCopy (ent->v->velocity, oldvel);
+       VectorCopy (ent->v->origin, start_origin);
+       VectorCopy (ent->v->velocity, start_velocity);
 
-       clip = SV_FlyMove (ent, sv.frametime, &steptrace);
+       clip = SV_FlyMove (ent, sv.frametime, NULL);
 
-       // if move didn't block on a step, return
-       if ( !(clip & 2) )
+       SV_SetOnGround (ent);
+       SV_CheckVelocity(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.integer)
                return;
 
-       if (ent->v->movetype != MOVETYPE_FLY)
+       // if move didn't block on a step, return
+       if (clip & 2)
        {
-               if (!oldonground && ent->v->waterlevel == 0 && !sv_jumpstep.integer)
-                       // don't stair up while jumping
+               // 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_WALK)
-                       // gibbed by a trigger
-                       return;
-       }
+               if (ent->v->movetype != MOVETYPE_FLY)
+               {
+                       // return if gibbed by a trigger
+                       if (ent->v->movetype != MOVETYPE_WALK)
+                               return;
 
-       if (sv_nostep.integer)
-               return;
+                       // only step up while jumping if that is enabled
+                       if (!(sv_jumpstep.integer && sv_gameplayfix_stepwhilejumping.integer))
+                               if (!oldonground && ent->v->waterlevel == 0)
+                                       return;
+               }
 
-       if ( (int)sv_player->v->flags & FL_WATERJUMP )
-               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);
 
-       VectorCopy (ent->v->origin, nosteporg);
-       VectorCopy (ent->v->velocity, nostepvel);
+               // move up
+               VectorClear (upmove);
+               upmove[2] = sv_stepheight.value;
+               // FIXME: don't link?
+               SV_PushEntity(ent, upmove);
 
-       // try moving up and forward to go up a step
-       // back to start pos
-       VectorCopy (oldorg, ent->v->origin);
+               // move forward
+               ent->v->velocity[2] = 0;
+               clip = SV_FlyMove (ent, sv.frametime, stepnormal);
+               ent->v->velocity[2] += start_velocity[2];
 
-       VectorClear (upmove);
-       VectorClear (downmove);
-       upmove[2] = sv_stepheight.value;
-       downmove[2] = -sv_stepheight.value + oldvel[2]*sv.frametime;
+               SV_CheckVelocity(ent);
 
-       // move up
-       // FIXME: don't link?
-       SV_PushEntity (ent, upmove, vec3_origin);
-
-       // move forward
-       ent->v->velocity[0] = oldvel[0];
-       ent->v->velocity[1] = oldvel[1];
-       ent->v->velocity[2] = 0;
-       clip = SV_FlyMove (ent, sv.frametime, &steptrace);
-       ent->v->velocity[2] += oldvel[2];
-
-       // check for stuckness, possibly due to the limited precision of floats
-       // in the clipping hulls
-       if (clip
-        && 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.integer)
-               SV_WallFriction (ent, &steptrace);
+               // 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.integer)
+                       SV_WallFriction (ent, stepnormal);
+       }
+       // skip out if stepdown is enabled, moving downward, not in water, and the move started onground and ended offground
+       else if (!(sv_gameplayfix_stepdown.integer && ent->v->waterlevel < 2 && start_velocity[2] < (1.0 / 32.0) && oldonground && !((int)ent->v->flags & FL_ONGROUND)))
+               return;
 
        // move down
+       VectorClear (downmove);
+       downmove[2] = -sv_stepheight.value + start_velocity[2]*sv.frametime;
        // FIXME: don't link?
-       downtrace = SV_PushEntity (ent, downmove, vec3_origin);
+       downtrace = SV_PushEntity (ent, downmove);
 
-       if (downtrace.plane.normal[2] > 0.7)
+       if (downtrace.fraction < 1 && downtrace.plane.normal[2] > 0.7)
        {
-               // LordHavoc: disabled this so you can walk on monsters/players
+               // 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(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 (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, "QC function PlayerPreThink is missing");
-
-       // 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);
-               SV_WalkMove (ent);
-               break;
-
-       case MOVETYPE_TOSS:
-       case MOVETYPE_BOUNCE:
-               SV_Physics_Toss (ent);
-               break;
-
-       case MOVETYPE_FLY:
-               if (!SV_RunThink (ent))
-                       return;
-               SV_CheckWater (ent);
-               //SV_FlyMove (ent, sv.frametime, NULL);
-               SV_WalkMove (ent);
-               break;
-
-       case MOVETYPE_NOCLIP:
-               if (!SV_RunThink (ent))
-                       return;
-               SV_CheckWater (ent);
-               VectorMA (ent->v->origin, sv.frametime, ent->v->velocity, ent->v->origin);
-               VectorMA (ent->v->angles, sv.frametime, ent->v->avelocity, ent->v->angles);
-               break;
-
-       default:
-               Host_Error ("SV_Physics_client: bad movetype %i", (int)ent->v->movetype);
+               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;
        }
 
-       // 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, "QC function PlayerPostThink is missing");
+       SV_SetOnGround (ent);
+       SV_CheckVelocity(ent);
 }
 
 //============================================================================
@@ -1103,25 +1165,6 @@ void SV_Physics_Follow (edict_t *ent)
        SV_LinkEdict (ent, true);
 }
 
-/*
-=============
-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, sv.frametime, ent->v->avelocity, ent->v->angles);
-       VectorMA (ent->v->origin, sv.frametime, ent->v->velocity, ent->v->origin);
-
-       SV_LinkEdict (ent, false);
-}
-
 /*
 ==============================================================================
 
@@ -1139,7 +1182,7 @@ SV_CheckWaterTransition
 void SV_CheckWaterTransition (edict_t *ent)
 {
        int cont;
-       cont = Mod_PointContents(ent->v->origin, sv.worldmodel);
+       cont = SV_PointQ1Contents(ent->v->origin);
        if (!ent->v->watertype)
        {
                // just spawned here
@@ -1148,23 +1191,19 @@ void SV_CheckWaterTransition (edict_t *ent)
                return;
        }
 
+       // check if the entity crossed into or out of water
+       if ((ent->v->watertype == CONTENTS_WATER || ent->v->watertype == CONTENTS_SLIME) != (cont == CONTENTS_WATER || cont == CONTENTS_SLIME))
+               SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1);
+
        if (cont <= CONTENTS_WATER)
        {
-               if (ent->v->watertype == CONTENTS_EMPTY && cont != CONTENTS_LAVA)
-                       // 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 && ent->v->watertype != CONTENTS_LAVA)
-                       // just crossed into water
-                       SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1);
-
                ent->v->watertype = CONTENTS_EMPTY;
-               ent->v->waterlevel = cont;
+               ent->v->waterlevel = 0;
        }
 }
 
@@ -1181,14 +1220,15 @@ void SV_Physics_Toss (edict_t *ent)
        vec3_t move;
        edict_t *groundentity;
 
-       // regular thinking
-       if (!SV_RunThink (ent))
-               return;
+       // don't stick to ground if onground and moving upward
+       if (ent->v->velocity[2] >= (1.0 / 32.0) && ((int)ent->v->flags & FL_ONGROUND))
+               ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
 
 // if onground, return without moving
        if ((int)ent->v->flags & FL_ONGROUND)
        {
-               VectorClear(ent->v->velocity);
+               if (!sv_gameplayfix_noairborncorpse.integer)
+                       return;
                if (ent->v->groundentity == 0)
                        return;
                // if ent was supported by a brush model on previous frame,
@@ -1196,18 +1236,18 @@ void SV_Physics_Toss (edict_t *ent)
                groundentity = PROG_TO_EDICT(ent->v->groundentity);
                if (groundentity->v->solid == SOLID_BSP)
                {
-                       ent->suspendedinairflag = true;
+                       ent->e->suspendedinairflag = true;
                        return;
                }
-               else if (ent->suspendedinairflag && groundentity->free)
+               else if (ent->e->suspendedinairflag && groundentity->e->free)
                {
                        // leave it suspended in the air
                        ent->v->groundentity = 0;
-                       ent->suspendedinairflag = false;
+                       ent->e->suspendedinairflag = false;
                        return;
                }
        }
-       ent->suspendedinairflag = false;
+       ent->e->suspendedinairflag = false;
 
        SV_CheckVelocity (ent);
 
@@ -1220,8 +1260,8 @@ void SV_Physics_Toss (edict_t *ent)
 
 // move origin
        VectorScale (ent->v->velocity, sv.frametime, move);
-       trace = SV_PushEntity (ent, move, vec3_origin);
-       if (ent->free)
+       trace = SV_PushEntity (ent, move);
+       if (ent->e->free)
                return;
 
        if (trace.fraction < 1)
@@ -1233,17 +1273,34 @@ void SV_Physics_Toss (edict_t *ent)
                }
                else if (ent->v->movetype == MOVETYPE_BOUNCE)
                {
+                       float d;
                        ClipVelocity (ent->v->velocity, trace.plane.normal, ent->v->velocity, 1.5);
                        // LordHavoc: fixed grenades not bouncing when fired down a slope
-                       if (trace.plane.normal[2] > 0.7 && DotProduct(trace.plane.normal, ent->v->velocity) < 60)
+                       if (sv_gameplayfix_grenadebouncedownslopes.integer)
                        {
-                               ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
-                               ent->v->groundentity = EDICT_TO_PROG(trace.ent);
-                               VectorClear (ent->v->velocity);
-                               VectorClear (ent->v->avelocity);
+                               d = DotProduct(trace.plane.normal, ent->v->velocity);
+                               if (trace.plane.normal[2] > 0.7 && fabs(d) < 60)
+                               {
+                                       ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
+                                       ent->v->groundentity = EDICT_TO_PROG(trace.ent);
+                                       VectorClear (ent->v->velocity);
+                                       VectorClear (ent->v->avelocity);
+                               }
+                               else
+                                       ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
                        }
                        else
-                               ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
+                       {
+                               if (trace.plane.normal[2] > 0.7 && ent->v->velocity[2] < 60)
+                               {
+                                       ent->v->flags = (int)ent->v->flags | FL_ONGROUND;
+                                       ent->v->groundentity = EDICT_TO_PROG(trace.ent);
+                                       VectorClear (ent->v->velocity);
+                                       VectorClear (ent->v->avelocity);
+                               }
+                               else
+                                       ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
+                       }
                }
                else
                {
@@ -1285,50 +1342,29 @@ will fall if the floor is pulled out from under them.
 */
 void SV_Physics_Step (edict_t *ent)
 {
-       int flags, fall, hitsound;
+       // don't stick to ground if onground and moving upward
+       if (ent->v->velocity[2] >= (1.0 / 32.0) && ((int)ent->v->flags & FL_ONGROUND))
+               ent->v->flags = (int)ent->v->flags & ~FL_ONGROUND;
 
-       // freefall if not fly/swim
-       fall = true;
-       flags = (int)ent->v->flags;
-       if (flags & (FL_FLY | FL_SWIM))
+       // freefall if not onground/fly/swim
+       if (!((int)ent->v->flags & (FL_ONGROUND | FL_FLY | FL_SWIM)))
        {
-               if (flags & FL_FLY)
-                       fall = false;
-               else if ((flags & FL_SWIM) && Mod_PointContents(ent->v->origin, sv.worldmodel) != CONTENTS_EMPTY)
-                       fall = false;
-       }
-       if (fall && (flags & FL_ONGROUND) && ent->v->groundentity == 0)
-               fall = false;
+               int hitsound = ent->v->velocity[2] < sv_gravity.value * -0.1;
 
-       if (fall)
-       {
-               if (ent->v->velocity[2] < sv_gravity.value*-0.1)
-               {
-                       hitsound = true;
-                       if (flags & FL_ONGROUND)
-                               hitsound = false;
-               }
-               else
-                       hitsound = false;
-
-               SV_AddGravity (ent);
-               SV_CheckVelocity (ent);
-               SV_FlyMove (ent, sv.frametime, NULL);
-               SV_LinkEdict (ent, false);
+               SV_AddGravity(ent);
+               SV_CheckVelocity(ent);
+               SV_FlyMove(ent, sv.frametime, NULL);
+               SV_LinkEdict(ent, true);
 
                // just hit ground
-               if ((int)ent->v->flags & FL_ONGROUND)
-               {
-                       VectorClear(ent->v->velocity);
-                       if (hitsound)
-                               SV_StartSound (ent, 0, "demon/dland2.wav", 255, 1);
-               }
+               if (hitsound && (int)ent->v->flags & FL_ONGROUND)
+                       SV_StartSound(ent, 0, "demon/dland2.wav", 255, 1);
        }
 
 // regular thinking
-       SV_RunThink (ent);
+       SV_RunThink(ent);
 
-       SV_CheckWaterTransition (ent);
+       SV_CheckWaterTransition(ent);
 }
 
 //============================================================================
@@ -1341,8 +1377,9 @@ SV_Physics
 */
 void SV_Physics (void)
 {
-       int i;
+       int i, newnum_edicts;
        edict_t *ent;
+       qbyte runmove[MAX_EDICTS];
 
 // let the progs know that a new frame has started
        pr_global_struct->self = EDICT_TO_PROG(sv.edicts);
@@ -1350,27 +1387,42 @@ void SV_Physics (void)
        pr_global_struct->time = sv.time;
        PR_ExecuteProgram (pr_global_struct->StartFrame, "QC function StartFrame is missing");
 
+       newnum_edicts = 0;
+       for (i = 0, ent = sv.edicts;i < sv.num_edicts;i++, ent = NEXT_EDICT(ent))
+               if ((runmove[i] = !ent->e->free))
+                       newnum_edicts = i + 1;
+       sv.num_edicts = max(svs.maxclients + 1, newnum_edicts);
+
 //
 // treat each object in turn
 //
-       ent = sv.edicts;
-       for (i=0 ; i<sv.num_edicts ; i++, ent = NEXT_EDICT(ent))
+
+       for (i = 0, ent = sv.edicts;i < sv.num_edicts;i++, ent = NEXT_EDICT(ent))
        {
-               if (ent->free)
+               if (ent->e->free)
                        continue;
 
                if (pr_global_struct->force_retouch)
                        SV_LinkEdict (ent, true);       // force retouch even for stationary
 
-               if (i > 0 && i <= svs.maxclients)
+               if (i >= 1 && i <= svs.maxclients && svs.clients[i-1].spawned)
                {
-                       SV_Physics_Client (ent, i);
-                       continue;
+                       // connected slot
+                       // call standard client pre-think
+                       SV_CheckVelocity (ent);
+                       pr_global_struct->time = sv.time;
+                       pr_global_struct->self = EDICT_TO_PROG(ent);
+                       PR_ExecuteProgram (pr_global_struct->PlayerPreThink, "QC function PlayerPreThink is missing");
+                       SV_CheckVelocity (ent);
                }
+               else if (sv_freezenonclients.integer)
+                       continue;
 
+               // LordHavoc: merged client and normal entity physics
                switch ((int) ent->v->movetype)
                {
                case MOVETYPE_PUSH:
+               case MOVETYPE_FAKEPUSH:
                        SV_Physics_Pusher (ent);
                        break;
                case MOVETYPE_NONE:
@@ -1382,12 +1434,19 @@ void SV_Physics (void)
                        SV_Physics_Follow (ent);
                        break;
                case MOVETYPE_NOCLIP:
-                       SV_Physics_Noclip (ent);
+                       if (SV_RunThink(ent))
+                       {
+                               SV_CheckWater(ent);
+                               VectorMA(ent->v->origin, sv.frametime, ent->v->velocity, ent->v->origin);
+                               VectorMA(ent->v->angles, sv.frametime, ent->v->avelocity, ent->v->angles);
+                       }
+                       // relink normal entities here, players always get relinked so don't relink twice
+                       if (!(i > 0 && i <= svs.maxclients))
+                               SV_LinkEdict(ent, false);
                        break;
                case MOVETYPE_STEP:
                        SV_Physics_Step (ent);
                        break;
-               // LordHavoc: added support for MOVETYPE_WALK on normal entities! :)
                case MOVETYPE_WALK:
                        if (SV_RunThink (ent))
                        {
@@ -1395,24 +1454,53 @@ void SV_Physics (void)
                                        SV_AddGravity (ent);
                                SV_CheckStuck (ent);
                                SV_WalkMove (ent);
-                               SV_LinkEdict (ent, true);
+                               // relink normal entities here, players always get relinked so don't relink twice
+                               if (!(i > 0 && i <= svs.maxclients))
+                                       SV_LinkEdict (ent, true);
                        }
                        break;
                case MOVETYPE_TOSS:
                case MOVETYPE_BOUNCE:
                case MOVETYPE_BOUNCEMISSILE:
-               case MOVETYPE_FLY:
                case MOVETYPE_FLYMISSILE:
-                       SV_Physics_Toss (ent);
+                       // regular thinking
+                       if (SV_RunThink (ent) && runmove[i])
+                               SV_Physics_Toss (ent);
+                       break;
+               case MOVETYPE_FLY:
+                       if (SV_RunThink (ent) && runmove[i])
+                       {
+                               if (i > 0 && i <= svs.maxclients)
+                               {
+                                       SV_CheckWater (ent);
+                                       SV_WalkMove (ent);
+                               }
+                               else
+                                       SV_Physics_Toss (ent);
+                       }
                        break;
                default:
                        Host_Error ("SV_Physics: bad movetype %i", (int)ent->v->movetype);
                        break;
                }
+
+               if (i >= 1 && i <= svs.maxclients && svs.clients[i-1].spawned)
+               {
+                       SV_CheckVelocity (ent);
+
+                       // call standard player post-think
+                       SV_LinkEdict (ent, true);
+
+                       SV_CheckVelocity (ent);
+
+                       pr_global_struct->time = sv.time;
+                       pr_global_struct->self = EDICT_TO_PROG(ent);
+                       PR_ExecuteProgram (pr_global_struct->PlayerPostThink, "QC function PlayerPostThink is missing");
+               }
        }
 
-       if (pr_global_struct->force_retouch)
-               pr_global_struct->force_retouch--;
+       if (pr_global_struct->force_retouch > 0)
+               pr_global_struct->force_retouch = max(0, pr_global_struct->force_retouch - 1);
 
        // LordHavoc: endframe support
        if (EndFrameQC)
@@ -1420,10 +1508,11 @@ void SV_Physics (void)
                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 ((func_t)(EndFrameQC - pr_functions), "");
+               PR_ExecuteProgram ((func_t)(EndFrameQC - pr_functions), "QC function EndFrame is missing");
        }
 
-       sv.time += sv.frametime;
+       if (!sv_freezenonclients.integer)
+               sv.time += sv.frametime;
 }
 
 
@@ -1464,9 +1553,8 @@ trace_t SV_Trace_Toss (edict_t *tossent, edict_t *ignore)
                trace = SV_Move (tent->v->origin, tent->v->mins, tent->v->maxs, end, MOVE_NORMAL, tent);
                VectorCopy (trace.endpos, tent->v->origin);
 
-               if (trace.fraction < 1 && trace.ent)
-                       if (trace.ent != ignore)
-                               break;
+               if (trace.fraction < 1 && trace.ent && trace.ent != ignore)
+                       break;
        }
        tossent->v->solid = savesolid;
        trace.fraction = 0; // not relevant