add checkpvs() to client too (but could not add an extension name for it, as client...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@8913 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/clvm_cmds.c b/clvm_cmds.c
index f527355cc36733818295d4360c82df7336701ede..20646da1d93091074bd73477fae14662d46a0b12 100644 (file)
--- a/clvm_cmds.c
+++ b/clvm_cmds.c
@@ -3082,6 +3082,75 @@ void VM_CL_serverkey(void)
        PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
 }
 
+/*
+=================
+VM_CL_checkpvs
+
+Checks if an entity is in a point's PVS.
+Should be fast but can be inexact.
+
+float checkpvs(vector viewpos, entity viewee) = #240;
+=================
+*/
+static void VM_CL_checkpvs (void)
+{
+       vec3_t viewpos;
+       prvm_edict_t *viewee;
+       vec3_t mi, ma;
+#if 1
+       unsigned char *pvs;
+#else
+       static int fatpvsbytes;
+       static unsigned char fatpvs[MAX_MAP_LEAFS/8];
+#endif
+
+       VM_SAFEPARMCOUNT(2, VM_SV_checkpvs);
+       VectorCopy(PRVM_G_VECTOR(OFS_PARM0), viewpos);
+       viewee = PRVM_G_EDICT(OFS_PARM1);
+
+       if(viewee->priv.required->free)
+       {
+               VM_Warning("checkpvs: can not check free entity\n");
+               PRVM_G_FLOAT(OFS_RETURN) = 4;
+               return;
+       }
+
+       VectorAdd(viewee->fields.server->origin, viewee->fields.server->mins, mi);
+       VectorAdd(viewee->fields.server->origin, viewee->fields.server->maxs, ma);
+
+#if 1
+       if(!sv.worldmodel->brush.GetPVS || !sv.worldmodel->brush.BoxTouchingPVS)
+       {
+               // no PVS support on this worldmodel... darn
+               PRVM_G_FLOAT(OFS_RETURN) = 3;
+               return;
+       }
+       pvs = sv.worldmodel->brush.GetPVS(sv.worldmodel, viewpos);
+       if(!pvs)
+       {
+               // viewpos isn't in any PVS... darn
+               PRVM_G_FLOAT(OFS_RETURN) = 2;
+               return;
+       }
+       PRVM_G_FLOAT(OFS_RETURN) = sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, pvs, mi, ma);
+#else
+       // using fat PVS like FTEQW does (slow)
+       if(!sv.worldmodel->brush.FatPVS || !sv.worldmodel->brush.BoxTouchingPVS)
+       {
+               // no PVS support on this worldmodel... darn
+               PRVM_G_FLOAT(OFS_RETURN) = 3;
+               return;
+       }
+       fatpvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, viewpos, 8, fatpvs, sizeof(fatpvs), false);
+       if(!fatpvsbytes)
+       {
+               // viewpos isn't in any PVS... darn
+               PRVM_G_FLOAT(OFS_RETURN) = 2;
+               return;
+       }
+       PRVM_G_FLOAT(OFS_RETURN) = sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, fatpvs, mi, ma);
+#endif
+}
 //============================================================================
 
 // To create a almost working builtin file from this replace:
@@ -3334,7 +3403,7 @@ NULL,                                                     // #236
 NULL,                                                  // #237
 NULL,                                                  // #238
 NULL,                                                  // #239
-NULL,                                                  // #240
+VM_CL_checkpvs,                                        // #240
 NULL,                                                  // #241
 NULL,                                                  // #242
 NULL,                                                  // #243