]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_phys.c
added a comment
[xonotic/darkplaces.git] / sv_phys.c
index 15c68026f7f817de0767849a217d71abf687a8ca..895e6876a9d1ef12179624abdb243757c27881e3 100644 (file)
--- a/sv_phys.c
+++ b/sv_phys.c
@@ -20,6 +20,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 // sv_phys.c
 
 #include "quakedef.h"
+// used only for VM_GetTempString
+#include "prvm_cmds.h"
 
 /*
 
@@ -79,9 +81,13 @@ SV_TestEntityPosition
 returns true if the entity is in solid currently
 ============
 */
-static int SV_TestEntityPosition (prvm_edict_t *ent, int movemode)
+static int SV_TestEntityPosition (prvm_edict_t *ent)
 {
-       return SV_Move (ent->fields.server->origin, ent->fields.server->mins, ent->fields.server->maxs, ent->fields.server->origin, movemode, ent).startsolid;
+       trace_t trace = SV_Move (ent->fields.server->origin, ent->fields.server->mins, ent->fields.server->maxs, ent->fields.server->origin, MOVE_NOMONSTERS, ent);
+       if (trace.startsupercontents & SUPERCONTENTS_SOLID)
+               return true;
+       else
+               return false;
 }
 
 /*
@@ -106,7 +112,7 @@ void SV_CheckAllEnts (void)
                 || check->fields.server->movetype == MOVETYPE_NOCLIP)
                        continue;
 
-               if (SV_TestEntityPosition (check, MOVE_NORMAL))
+               if (SV_TestEntityPosition (check))
                        Con_Print("entity in invalid position\n");
        }
 }
@@ -187,25 +193,73 @@ SV_Impact
 Two entities have touched, so run their touch functions
 ==================
 */
-void SV_Impact (prvm_edict_t *e1, prvm_edict_t *e2)
+void SV_Impact (prvm_edict_t *e1, trace_t *trace)
 {
        int old_self, old_other;
+       prvm_edict_t *e2 = (prvm_edict_t *)trace->ent;
+       prvm_eval_t *val;
 
        old_self = prog->globals.server->self;
        old_other = prog->globals.server->other;
 
        prog->globals.server->time = sv.time;
-       if (e1->fields.server->touch && e1->fields.server->solid != SOLID_NOT)
+       if (!e1->priv.server->free && !e2->priv.server->free && e1->fields.server->touch && e1->fields.server->solid != SOLID_NOT)
        {
                prog->globals.server->self = PRVM_EDICT_TO_PROG(e1);
                prog->globals.server->other = PRVM_EDICT_TO_PROG(e2);
+               prog->globals.server->trace_allsolid = trace->allsolid;
+               prog->globals.server->trace_startsolid = trace->startsolid;
+               prog->globals.server->trace_fraction = trace->fraction;
+               prog->globals.server->trace_inwater = trace->inwater;
+               prog->globals.server->trace_inopen = trace->inopen;
+               VectorCopy (trace->endpos, prog->globals.server->trace_endpos);
+               VectorCopy (trace->plane.normal, prog->globals.server->trace_plane_normal);
+               prog->globals.server->trace_plane_dist =  trace->plane.dist;
+               if (trace->ent)
+                       prog->globals.server->trace_ent = PRVM_EDICT_TO_PROG(trace->ent);
+               else
+                       prog->globals.server->trace_ent = PRVM_EDICT_TO_PROG(prog->edicts);
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dpstartcontents)))
+                       val->_float = trace->startsupercontents;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphitcontents)))
+                       val->_float = trace->hitsupercontents;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphitq3surfaceflags)))
+                       val->_float = trace->hitq3surfaceflags;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphittexturename)))
+               {
+                       if (trace->hittexture)
+                       {
+                               char *s = VM_GetTempString();
+                               strlcpy(s, trace->hittexture->name, VM_STRINGTEMP_LENGTH);
+                               val->string = PRVM_SetEngineString(s);
+                       }
+                       else
+                               val->string = 0;
+               }
                PRVM_ExecuteProgram (e1->fields.server->touch, "QC function self.touch is missing");
        }
 
-       if (e2->fields.server->touch && e2->fields.server->solid != SOLID_NOT)
+       if (!e1->priv.server->free && !e2->priv.server->free && e2->fields.server->touch && e2->fields.server->solid != SOLID_NOT)
        {
                prog->globals.server->self = PRVM_EDICT_TO_PROG(e2);
                prog->globals.server->other = PRVM_EDICT_TO_PROG(e1);
+               prog->globals.server->trace_allsolid = false;
+               prog->globals.server->trace_startsolid = false;
+               prog->globals.server->trace_fraction = 1;
+               prog->globals.server->trace_inwater = false;
+               prog->globals.server->trace_inopen = true;
+               VectorCopy (e2->fields.server->origin, prog->globals.server->trace_endpos);
+               VectorSet (prog->globals.server->trace_plane_normal, 0, 0, 1);
+               prog->globals.server->trace_plane_dist = 0;
+               prog->globals.server->trace_ent = PRVM_EDICT_TO_PROG(e1);
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dpstartcontents)))
+                       val->_float = 0;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphitcontents)))
+                       val->_float = 0;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphitq3surfaceflags)))
+                       val->_float = 0;
+               if ((val = PRVM_GETGLOBALFIELDVALUE(gval_trace_dphittexturename)))
+                       val->string = 0;
                PRVM_ExecuteProgram (e2->fields.server->touch, "QC function self.touch is missing");
        }
 
@@ -316,15 +370,15 @@ int SV_FlyMove (prvm_edict_t *ent, float time, float *stepnormal)
                Con_Print("\n");
 #endif
 
-               /*
-               if (trace.startsolid)
+               if (trace.bmodelstartsolid)
                {
-                       // LordHavoc: note: this code is what makes entities stick in place if embedded in another object (which can be the world)
+                       // LordHavoc: note: this code is what makes entities stick in place
+                       // if embedded in world only (you can walk through other objects if
+                       // stuck)
                        // entity is trapped in another solid
                        VectorClear(ent->fields.server->velocity);
                        return 3;
                }
-               */
 
                // break if it moved the entire distance
                if (trace.fraction == 1)
@@ -377,7 +431,7 @@ int SV_FlyMove (prvm_edict_t *ent, float time, float *stepnormal)
                // run the impact function
                if (impact)
                {
-                       SV_Impact(ent, (prvm_edict_t *)trace.ent);
+                       SV_Impact(ent, &trace);
 
                        // break if removed by the impact function
                        if (ent->priv.server->free)
@@ -530,7 +584,7 @@ trace_t SV_PushEntity (prvm_edict_t *ent, vec3_t push)
        SV_LinkEdict (ent, true);
 
        if (trace.ent && (!((int)ent->fields.server->flags & FL_ONGROUND) || ent->fields.server->groundentity != PRVM_EDICT_TO_PROG(trace.ent)))
-               SV_Impact (ent, (prvm_edict_t *)trace.ent);
+               SV_Impact (ent, &trace);
        return trace;
 }
 
@@ -578,13 +632,13 @@ void SV_PushMove (prvm_edict_t *pusher, float movetime)
                SV_LinkEdict (pusher, false);
                return;
        default:
-               Con_Printf("SV_PushMove: unrecognized solid type %f\n", pusher->fields.server->solid);
+               Con_Printf("SV_PushMove: entity #%i, unrecognized solid type %f\n", PRVM_NUM_FOR_EDICT(pusher), pusher->fields.server->solid);
                return;
        }
        index = (int) pusher->fields.server->modelindex;
        if (index < 1 || index >= MAX_MODELS)
        {
-               Con_Printf("SV_PushMove: invalid modelindex %f\n", pusher->fields.server->modelindex);
+               Con_Printf("SV_PushMove: entity #%i has an invalid modelindex %f\n", PRVM_NUM_FOR_EDICT(pusher), pusher->fields.server->modelindex);
                return;
        }
        pushermodel = sv.models[index];
@@ -675,7 +729,7 @@ void SV_PushMove (prvm_edict_t *pusher, float movetime)
                if (!(((int)check->fields.server->flags & FL_ONGROUND) && PRVM_PROG_TO_EDICT(check->fields.server->groundentity) == pusher))
                {
                        // if the entity is not inside the pusher's final position, leave it alone
-                       if (!SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID).startsolid)
+                       if (!SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY).startsolid)
                                continue;
                        // remove the onground flag for non-players
                        if (check->fields.server->movetype != MOVETYPE_WALK)
@@ -708,7 +762,7 @@ void SV_PushMove (prvm_edict_t *pusher, float movetime)
                pusher->fields.server->solid = savesolid; // was SOLID_BSP
 
                // if it is still inside the pusher, block
-               if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID).startsolid)
+               if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY).startsolid)
                {
                        // try moving the contacted entity a tiny bit further to account for precision errors
                        vec3_t move2;
@@ -718,7 +772,7 @@ void SV_PushMove (prvm_edict_t *pusher, float movetime)
                        VectorCopy (check->priv.server->moved_fromangles, check->fields.server->angles);
                        SV_PushEntity (check, move2);
                        pusher->fields.server->solid = savesolid;
-                       if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID).startsolid)
+                       if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY).startsolid)
                        {
                                // try moving the contacted entity a tiny bit less to account for precision errors
                                pusher->fields.server->solid = SOLID_NOT;
@@ -727,7 +781,7 @@ void SV_PushMove (prvm_edict_t *pusher, float movetime)
                                VectorCopy (check->priv.server->moved_fromangles, check->fields.server->angles);
                                SV_PushEntity (check, move2);
                                pusher->fields.server->solid = savesolid;
-                               if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID).startsolid)
+                               if (SV_ClipMoveToEntity(pusher, check->fields.server->origin, check->fields.server->mins, check->fields.server->maxs, check->fields.server->origin, 0, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY).startsolid)
                                {
                                        // still inside pusher, so it's really blocked
 
@@ -831,7 +885,7 @@ void SV_CheckStuck (prvm_edict_t *ent)
        int i, j, z;
        vec3_t org;
 
-       if (!SV_TestEntityPosition(ent, MOVE_NORMAL))
+       if (!SV_TestEntityPosition(ent))
        {
                VectorCopy (ent->fields.server->origin, ent->fields.server->oldorigin);
                return;
@@ -839,30 +893,30 @@ void SV_CheckStuck (prvm_edict_t *ent)
 
        VectorCopy (ent->fields.server->origin, org);
        VectorCopy (ent->fields.server->oldorigin, ent->fields.server->origin);
-       if (!SV_TestEntityPosition(ent, MOVE_NORMAL))
+       if (!SV_TestEntityPosition(ent))
        {
-               Con_DPrintf("Unstuck entity %i (classname \"%s\").\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
+               Con_DPrintf("Unstuck player entity %i (classname \"%s\") by restoring oldorigin.\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
                SV_LinkEdict (ent, true);
                return;
        }
 
-       for (z=0 ; z< 18 ; z++)
+       for (z=-1 ; z< 18 ; z++)
                for (i=-1 ; i <= 1 ; i++)
                        for (j=-1 ; j <= 1 ; j++)
                        {
                                ent->fields.server->origin[0] = org[0] + i;
                                ent->fields.server->origin[1] = org[1] + j;
                                ent->fields.server->origin[2] = org[2] + z;
-                               if (!SV_TestEntityPosition(ent, MOVE_NORMAL))
+                               if (!SV_TestEntityPosition(ent))
                                {
-                                       Con_DPrintf("Unstuck entity %i (classname \"%s\").\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
+                                       Con_DPrintf("Unstuck player entity %i (classname \"%s\") with offset %f %f %f.\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname), (float)i, (float)j, (float)z);
                                        SV_LinkEdict (ent, true);
                                        return;
                                }
                        }
 
        VectorCopy (org, ent->fields.server->origin);
-       Con_DPrintf("Stuck entity %i (classname \"%s\").\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
+       Con_DPrintf("Stuck player entity %i (classname \"%s\").\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
 }
 
 static void SV_UnstickEntity (prvm_edict_t *ent)
@@ -871,21 +925,21 @@ static void SV_UnstickEntity (prvm_edict_t *ent)
        vec3_t org;
 
        // if not stuck in a bmodel, just return
-       if (!SV_TestEntityPosition(ent, MOVE_NOMONSTERS))
+       if (!SV_TestEntityPosition(ent))
                return;
 
        VectorCopy (ent->fields.server->origin, org);
 
-       for (z=0 ; z< 18 ; z += 6)
+       for (z=-1 ; z< 18 ; z += 6)
                for (i=-1 ; i <= 1 ; i++)
                        for (j=-1 ; j <= 1 ; j++)
                        {
                                ent->fields.server->origin[0] = org[0] + i;
                                ent->fields.server->origin[1] = org[1] + j;
                                ent->fields.server->origin[2] = org[2] + z;
-                               if (!SV_TestEntityPosition(ent, MOVE_NOMONSTERS))
+                               if (!SV_TestEntityPosition(ent))
                                {
-                                       Con_DPrintf("Unstuck entity %i (classname \"%s\").\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname));
+                                       Con_DPrintf("Unstuck entity %i (classname \"%s\") with offset %f %f %f.\n", (int)PRVM_EDICT_TO_PROG(ent), PRVM_GetString(ent->fields.server->classname), (float)i, (float)j, (float)z);
                                        SV_LinkEdict (ent, true);
                                        return;
                                }
@@ -1643,23 +1697,20 @@ void SV_Physics (void)
 trace_t SV_Trace_Toss (prvm_edict_t *tossent, prvm_edict_t *ignore)
 {
        int i;
-       float gravity, savesolid;
+       float gravity;
        vec3_t move, end;
-       prvm_edict_t tempent, *tent;
-       entvars_t vars;
+       vec3_t original_origin;
+       vec3_t original_velocity;
+       vec3_t original_angles;
+       vec3_t original_avelocity;
        prvm_eval_t *val;
        trace_t trace;
 
-       // copy the vars over
-       memcpy(&vars, tossent->fields.server, sizeof(entvars_t));
-       // set up the temp entity to point to the copied vars
-       tent = &tempent;
-       tent->fields.server = &vars;
-
-       savesolid = tossent->fields.server->solid;
-       tossent->fields.server->solid = SOLID_NOT;
+       VectorCopy(tossent->fields.server->origin   , original_origin   );
+       VectorCopy(tossent->fields.server->velocity , original_velocity );
+       VectorCopy(tossent->fields.server->angles   , original_angles   );
+       VectorCopy(tossent->fields.server->avelocity, original_avelocity);
 
-       // this has to fetch the field from the original edict, since our copy is truncated
        val = PRVM_GETEDICTFIELDVALUE(tossent, eval_gravity);
        if (val != NULL && val->_float != 0)
                gravity = val->_float;
@@ -1669,19 +1720,23 @@ trace_t SV_Trace_Toss (prvm_edict_t *tossent, prvm_edict_t *ignore)
 
        for (i = 0;i < 200;i++) // LordHavoc: sanity check; never trace more than 10 seconds
        {
-               SV_CheckVelocity (tent);
-               tent->fields.server->velocity[2] -= gravity;
-               VectorMA (tent->fields.server->angles, 0.05, tent->fields.server->avelocity, tent->fields.server->angles);
-               VectorScale (tent->fields.server->velocity, 0.05, move);
-               VectorAdd (tent->fields.server->origin, move, end);
-               trace = SV_Move (tent->fields.server->origin, tent->fields.server->mins, tent->fields.server->maxs, end, MOVE_NORMAL, tent);
-               VectorCopy (trace.endpos, tent->fields.server->origin);
-
-               if (trace.fraction < 1 && trace.ent && trace.ent != ignore)
+               SV_CheckVelocity (tossent);
+               tossent->fields.server->velocity[2] -= gravity;
+               VectorMA (tossent->fields.server->angles, 0.05, tossent->fields.server->avelocity, tossent->fields.server->angles);
+               VectorScale (tossent->fields.server->velocity, 0.05, move);
+               VectorAdd (tossent->fields.server->origin, move, end);
+               trace = SV_Move (tossent->fields.server->origin, tossent->fields.server->mins, tossent->fields.server->maxs, end, MOVE_NORMAL, tossent);
+               VectorCopy (trace.endpos, tossent->fields.server->origin);
+
+               if (trace.fraction < 1)
                        break;
        }
-       tossent->fields.server->solid = savesolid;
-       trace.fraction = 0; // not relevant
+
+       VectorCopy(original_origin   , tossent->fields.server->origin   );
+       VectorCopy(original_velocity , tossent->fields.server->velocity );
+       VectorCopy(original_angles   , tossent->fields.server->angles   );
+       VectorCopy(original_avelocity, tossent->fields.server->avelocity);
+
        return trace;
 }