New feature: disableclientprediction == -1.

This forces client prediction in cases DP's own client side prediction cannot
handle, in particular, in case of non-WALK movetypes on a player entity.

To be useful, this requires CSQC code to perform player prediction instead.

From: Mario <mario@smbclan.net>

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12238 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/dpdefs/dpextensions.qc b/dpdefs/dpextensions.qc
index 07142e9437317799487f3a0945f036149293488f..c085bf515b43fd44f86c9be4dc36426c4cc4d75b 100644 (file)
--- a/dpdefs/dpextensions.qc
+++ b/dpdefs/dpextensions.qc
@@ -3,6 +3,10 @@
 
 //things that don't have extensions yet:
 .float disableclientprediction;
+// 0 allows prediction only for MOVETYPE_WALK
+// 1 disables prediction completely
+// -1 allows prediction for all movetypes
+// Requires CSQC to perform player prediction, and requires explicit CSQC networking of movetype (or equivalent) from server to client.
 
 //definitions that id Software left out:
 //these are passed as the 'nomonsters' parameter to traceline/tracebox (yes really this was supported in all quake engines, nomonsters is misnamed)

diff --git a/sv_phys.c b/sv_phys.c
index 3d7bf81e8a1fa7d6b52cec571e33b71dc7e1092b..87717114d0cffddcb5f7278126259b31e41e2a64 100644 (file)
--- a/sv_phys.c
+++ b/sv_phys.c
@@ -2489,10 +2489,6 @@ static void SV_Physics_Follow (prvm_edict_t *ent)
        vec3_t vf, vr, vu, angles, v;
        prvm_edict_t *e;
 
-       // regular thinking
-       if (!SV_RunThink (ent))
-               return;
-
        // LordHavoc: implemented rotation on MOVETYPE_FOLLOW objects
        e = PRVM_PROG_TO_EDICT(PRVM_serveredictedict(ent, aiment));
        if (PRVM_serveredictvector(e, angles)[0] == PRVM_serveredictvector(ent, punchangle)[0] && PRVM_serveredictvector(e, angles)[1] == PRVM_serveredictvector(ent, punchangle)[1] && PRVM_serveredictvector(e, angles)[2] == PRVM_serveredictvector(ent, punchangle)[2])
@@ -2811,17 +2807,6 @@ static void SV_Physics_Step (prvm_edict_t *ent)
                        ent->priv.server->waterposition_forceupdate = true;
                }
        }
-
-// regular thinking
-       if (!SV_RunThink(ent))
-               return;
-
-       if (ent->priv.server->waterposition_forceupdate || !VectorCompare(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin))
-       {
-               ent->priv.server->waterposition_forceupdate = false;
-               VectorCopy(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin);
-               SV_CheckWaterTransition(ent);
-       }
 }
 
 //============================================================================
@@ -2851,7 +2836,8 @@ static void SV_Physics_Entity (prvm_edict_t *ent)
                        SV_RunThink (ent);
                break;
        case MOVETYPE_FOLLOW:
-               SV_Physics_Follow (ent);
+               if(SV_RunThink(ent))
+                       SV_Physics_Follow (ent);
                break;
        case MOVETYPE_NOCLIP:
                if (SV_RunThink(ent))
@@ -2864,6 +2850,14 @@ static void SV_Physics_Entity (prvm_edict_t *ent)
                break;
        case MOVETYPE_STEP:
                SV_Physics_Step (ent);
+               // regular thinking
+               if (SV_RunThink(ent))
+               if (ent->priv.server->waterposition_forceupdate || !VectorCompare(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin))
+               {
+                       ent->priv.server->waterposition_forceupdate = false;
+                       VectorCopy(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin);
+                       SV_CheckWaterTransition(ent);
+               }
                break;
        case MOVETYPE_WALK:
                if (SV_RunThink (ent))
@@ -2892,6 +2886,54 @@ static void SV_Physics_Entity (prvm_edict_t *ent)
        }
 }
 
+static void SV_Physics_ClientEntity_NoThink (prvm_edict_t *ent)
+{
+       prvm_prog_t *prog = SVVM_prog;
+
+       // don't run think at all, that is done during server frames
+       // instead, call the movetypes directly so they match client input
+
+       // This probably only makes sense for CSQC-networked (SendEntity field set) player entities
+       switch ((int) PRVM_serveredictfloat(ent, movetype))
+       {
+       case MOVETYPE_PUSH:
+       case MOVETYPE_FAKEPUSH:
+               // push physics relies heavily on think times and calls, and so cannot be predicted currently
+               Con_Printf ("SV_Physics_ClientEntity_NoThink: bad movetype %i\n", (int)PRVM_serveredictfloat(ent, movetype));
+               break;
+       case MOVETYPE_NONE:
+               break;
+       case MOVETYPE_FOLLOW:
+               SV_Physics_Follow (ent);
+               break;
+       case MOVETYPE_NOCLIP:
+               VectorMA(PRVM_serveredictvector(ent, origin), sv.frametime, PRVM_serveredictvector(ent, velocity), PRVM_serveredictvector(ent, origin));
+               VectorMA(PRVM_serveredictvector(ent, angles), sv.frametime, PRVM_serveredictvector(ent, avelocity), PRVM_serveredictvector(ent, angles));
+               break;
+       case MOVETYPE_STEP:
+               SV_Physics_Step (ent);
+               break;
+       case MOVETYPE_WALK:
+               SV_WalkMove (ent);
+               break;
+       case MOVETYPE_TOSS:
+       case MOVETYPE_BOUNCE:
+       case MOVETYPE_BOUNCEMISSILE:
+       case MOVETYPE_FLYMISSILE:
+               SV_Physics_Toss (ent);
+               break;
+       case MOVETYPE_FLY:
+       case MOVETYPE_FLY_WORLDONLY:
+               SV_WalkMove (ent);
+               break;
+       case MOVETYPE_PHYSICS:
+               break;
+       default:
+               Con_Printf ("SV_Physics_ClientEntity_NoThink: bad movetype %i\n", (int)PRVM_serveredictfloat(ent, movetype));
+               break;
+       }
+}
+
 void SV_Physics_ClientMove(void)
 {
        prvm_prog_t *prog = SVVM_prog;
@@ -2912,8 +2954,9 @@ void SV_Physics_ClientMove(void)
        // make sure the velocity is sane (not a NaN)
        SV_CheckVelocity(ent);
 
-       // perform MOVETYPE_WALK behavior
-       SV_WalkMove (ent);
+       // perform movetype behaviour
+       // note: will always be MOVETYPE_WALK if disableclientprediction = 0
+       SV_Physics_ClientEntity_NoThink (ent);
 
        // call standard player post-think, with frametime = 0
        PRVM_serverglobalfloat(time) = sv.time;
@@ -3025,7 +3068,9 @@ static void SV_Physics_ClientEntity(prvm_edict_t *ent)
                        SV_RunThink (ent);
                break;
        case MOVETYPE_FOLLOW:
-               SV_Physics_Follow (ent);
+               SV_RunThink (ent);
+               if (host_client->clmovement_inputtimeout <= 0) // don't run physics here if running asynchronously
+                       SV_Physics_Follow (ent);
                break;
        case MOVETYPE_NOCLIP:
                SV_RunThink(ent);
@@ -3034,7 +3079,15 @@ static void SV_Physics_ClientEntity(prvm_edict_t *ent)
                VectorMA(PRVM_serveredictvector(ent, angles), sv.frametime, PRVM_serveredictvector(ent, avelocity), PRVM_serveredictvector(ent, angles));
                break;
        case MOVETYPE_STEP:
-               SV_Physics_Step (ent);
+               if (host_client->clmovement_inputtimeout <= 0) // don't run physics here if running asynchronously
+                       SV_Physics_Step (ent);
+               if (SV_RunThink(ent))
+               if (ent->priv.server->waterposition_forceupdate || !VectorCompare(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin))
+               {
+                       ent->priv.server->waterposition_forceupdate = false;
+                       VectorCopy(PRVM_serveredictvector(ent, origin), ent->priv.server->waterposition_origin);
+                       SV_CheckWaterTransition(ent);
+               }
                break;
        case MOVETYPE_WALK:
                SV_RunThink (ent);
@@ -3048,12 +3101,14 @@ static void SV_Physics_ClientEntity(prvm_edict_t *ent)
        case MOVETYPE_FLYMISSILE:
                // regular thinking
                SV_RunThink (ent);
-               SV_Physics_Toss (ent);
+               if (host_client->clmovement_inputtimeout <= 0) // don't run physics here if running asynchronously
+                       SV_Physics_Toss (ent);
                break;
        case MOVETYPE_FLY:
        case MOVETYPE_FLY_WORLDONLY:
                SV_RunThink (ent);
-               SV_WalkMove (ent);
+               if (host_client->clmovement_inputtimeout <= 0) // don't run physics here if running asynchronously
+                       SV_WalkMove (ent);
                break;
        case MOVETYPE_PHYSICS:
                SV_RunThink (ent);

diff --git a/sv_user.c b/sv_user.c
index 5f8bf86a02d65be8e0d1fbdda6d3b97849859265..15b521d5740759283ee938395344f0ed44d1f5d2 100644 (file)
--- a/sv_user.c
+++ b/sv_user.c
@@ -599,7 +599,7 @@ static void SV_ExecuteClientMoves(void)
        if (ceil(max(sv_readmoves[sv_numreadmoves-1].receivetime - sv_readmoves[sv_numreadmoves-1].time, 0) * 1000.0) < sv_clmovement_minping.integer)
                host_client->clmovement_disabletimeout = realtime + sv_clmovement_minping_disabletime.value / 1000.0;
        // several conditions govern whether clientside movement prediction is allowed
-       if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_inputtimeout.value > 0 && host_client->clmovement_disabletimeout <= realtime && PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_WALK && (!PRVM_serveredictfloat(host_client->edict, disableclientprediction)))
+       if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_inputtimeout.value > 0 && host_client->clmovement_disabletimeout <= realtime && (PRVM_serveredictfloat(host_client->edict, disableclientprediction) == -1 || (PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_WALK && (!PRVM_serveredictfloat(host_client->edict, disableclientprediction)))))
        {
                // process the moves in order and ignore old ones
                // but always trust the latest move