Oh goodness, let the bugs begin...

1) New hookable GameDLL funcs: UpdateClientData, AddToFullPack, CmdStart, CmdEnd (at28754)
2) New GameDLL funcs that can be called via dllfunc: UpdateClientData, AddToFullPack, CmdStart, CmdEnd
3) New natives to read/write special data structures associated with the above GameDLL funcs:
   get/set_cd (ClientData), get/set_es (EntityState), get/set_uc (UserCmd)

plugins/include/fakemeta.inc

@@ -85,6 +85,27 @@ native get_kvd(kvd_handle, KeyValueData:member, {Float,_}:...);
 // keyvalues structure rather than changing the internal engine strings.
 native set_kvd(kvd_handle, KeyValueData:member, {Float,_}:...);
 
+// These functions are used with the clientdata data structure (FM_UpdateClientData)
+// Get: 0 extra params - Return integer; 1 extra param - by ref float or vector; 2 extra params - string and length
+// Set: Use anything
+// Use 0 for cd_handle to specify the global clientdata handle
+native get_cd(cd_handle, ClientData:member, {Float,_}:...);
+native set_cd(cd_handle, ClientData:member, {Float,_}:...);
+
+// These functions are used with the entity_state data structure (FM_AddToFullPack)
+// Get: 0 extra params - Return integer; 1 extra param - by ref float or vector or array
+// Set: Use anything
+// Use 0 for es_handle to specify the global entity_state handle
+native get_es(es_handle, EntityState:member, {Float,_}:...);
+native set_es(es_handle, EntityState:member, {Float,_}:...);
+
+// These functions are used with the usercmd data structure (FM_CmdStart)
+// Get: 0 extra params - Return integer; 1 extra param - by ref float or vector
+// Set: Use anything
+// Use 0 for uc_handle to specify the global usercmd handle
+native get_uc(uc_handle, UserCmd:member, {Float,_}:...);
+native set_uc(uc_handle, UserCmd:member, {Float,_}:...);
+
 //NOTE that for the string offsets below, on AMD64, a byref (char **) offset is NOT the same as an int offset
 //In fact it's QWORD aligned rather than DWORD aligned, so the offset will be exactly half.
 //Gets a string from a private offset.  If byref is false, the string is treated as static rather than dynamic.

plugins/include/fakemeta_const.inc

@@ -158,9 +158,16 @@ enum
 	// Create baselines for certain "unplaced" items.
 	DLLFunc_CreateInstancedBaseline,	// void )			( void );
 	DLLFunc_pfnAllowLagCompensation,	// int  )			( void );
-	// I know this does not fit with DLLFUNC(), but I dont want another native just for it.
+	// I know this does not fit with DLLFUNC(), but I don't want another native just for it.
 	MetaFunc_CallGameEntity,			// bool	)			(plid_t plid, const char *entStr,entvars_t *pev);
-	DLLFunc_ClientUserInfoChanged		// void	)			(idplayer)
+	DLLFunc_ClientUserInfoChanged,		// void	)			(idplayer)
+	// You can pass in 0 for global cd handle or another cd handle here
+	DLLFunc_UpdateClientData,			// void )			(const struct edict_s *ent, int sendweapons, struct clientdata_s *cd);
+	// You can pass in 0 for global entity state handle or another entity state handle here
+	DLLFunc_AddToFullPack,				// int  )			(struct entity_state_s *state, int e, edict_t *ent, edict_t *host, int hostflags, int player, unsigned char *pSet);
+	// You can pass in 0 for global usercmd handle or another usercmd handle here
+	DLLFunc_CmdStart,					// void )			(const edict_t *player, const struct usercmd_s *cmd, unsigned int random_seed);
+	DLLFunc_CmdEnd						// void )			(const edict_t *player);
 };
 
 enum {
@@ -504,7 +511,12 @@ enum {
 	FM_ShouldCollide,
 	
 	//LATE ADDITIONS (v1.71)
-	FM_ClientUserInfoChanged	//passes id only
+	FM_ClientUserInfoChanged,	//passes id only
+	
+	FM_UpdateClientData,
+	FM_AddToFullPack,
+	FM_CmdStart,
+	FM_CmdEnd
 };
 
 enum TraceResult
@@ -529,3 +541,161 @@ enum KeyValueData
 	KV_fHandled
 };
 
+enum ClientData
+{
+	CD_Origin,
+	CD_Velocity,
+	CD_ViewModel,
+	CD_PunchAngle,
+	CD_Flags,
+	CD_WaterLevel,
+	CD_WaterType,
+	CD_ViewOfs,
+	CD_Health,
+	CD_bInDuck,
+	CD_Weapons,
+	CD_flTimeStepSound,
+	CD_flDuckTime,
+	CD_flSwimTime,
+	CD_WaterJumpTime,
+	CD_MaxSpeed,
+	CD_FOV,
+	CD_WeaponAnim,
+	CD_ID,
+	CD_AmmoShells,
+	CD_AmmoNails,
+	CD_AmmoCells,
+	CD_AmmoRockets,
+	CD_flNextAttack,
+	CD_tfState,
+	CD_PushMsec,
+	CD_DeadFlag,
+	CD_PhysInfo,
+	CD_iUser1,
+	CD_iUser2,
+	CD_iUser3,
+	CD_iUser4,
+	CD_fUser1,
+	CD_fUser2,
+	CD_fUser3,
+	CD_fUser4,
+	CD_vUser1,
+	CD_vUser2,
+	CD_vUser3,
+	CD_vUser4
+};
+
+enum EntityState
+{
+	// Fields which are filled in by routines outside of delta compression
+	ES_EntityType,
+	// Index into cl_entities array for this entity
+	ES_Number,
+	ES_MsgTime,
+	
+	// Message number last time the player/entity state was updated
+	ES_MessageNum,
+	
+	// Fields which can be transitted and reconstructed over the network stream
+	ES_Origin,
+	ES_Angles,
+	
+	ES_ModelIndex,
+	ES_Sequence,
+	ES_Frame,
+	ES_ColorMap,
+	ES_Skin,
+	ES_Solid,
+	ES_Effects,
+	ES_Scale,
+	ES_eFlags,
+	
+	// Render information
+	ES_RenderMode,
+	ES_RenderAmt,
+	ES_RenderColor,
+	ES_RenderFx,
+	
+	ES_MoveType,
+	ES_AnimTime,
+	ES_FrameRate,
+	ES_Body,
+	ES_Controller,
+	ES_Blending,
+	ES_Velocity,
+	
+	// Send bbox down to client for use during prediction
+	ES_Mins,
+	ES_Maxs,
+	
+	ES_AimEnt,
+	// If owned by a player, the index of that player (for projectiles)
+	ES_Owner,
+	
+	// Friction, for prediction
+	ES_Friction,
+	// Gravity multiplier
+	ES_Gravity,
+	
+	// PLAYER SPECIFIC
+	ES_Team,
+	ES_PlayerClass,
+	ES_Health,
+	ES_Spectator,
+	ES_WeaponModel,
+	ES_GaitSequence,
+	// If standing on conveyor, e.g.
+	ES_BaseVelocity,
+	// Use the crouched hull, or the regular player hull
+	ES_UseHull,
+	// Latched buttons last time state updated
+	ES_OldButtons,
+	// -1 = in air, else pmove entity number
+	ES_OnGround,
+	ES_iStepLeft,
+	// How fast we are falling
+	ES_flFallVelocity,
+	
+	ES_FOV,
+	ES_WeaponAnim,
+	
+	// Parametric movement overrides
+	ES_StartPos,
+	ES_EndPos,
+	ES_ImpactTime,
+	ES_StartTime,
+	
+	// For mods
+	ES_iUser1,
+	ES_iUser2,
+	ES_iUser3,
+	ES_iUser4,
+	ES_fUser1,
+	ES_fUser2,
+	ES_fUser3,
+	ES_fUser4,
+	ES_vUser1,
+	ES_vUser2,
+	ES_vUser3,
+	ES_vUser4
+};
+
+enum UserCmd
+{
+	UC_LerpMsec,		// Interpolation time on client
+	UC_Msec,			// Duration in ms of command
+	UC_ViewAngles,		// Command view angles
+	
+	// Intended velocities
+	UC_ForwardMove,		// Forward velocity
+	UC_SideMove,		// Sideways velocity
+	UC_UpMove,			// Upward velocity
+	UC_LightLevel,		// Light level at spot where we are standing
+	UC_Buttons,			// Attack buttons
+	UC_Impulse,			// Impulse command issued
+	UC_WeaponSelect,	// Current weapon id
+	
+	// Experimental player impact stuff
+	UC_ImpactIndex,
+	UC_ImpactPosition
+};

plugins/include/fakemeta_stocks.inc

@@ -155,7 +155,7 @@ stock EF_PrecacheEvent(type, const STRING[])
 	return engfunc(EngFunc_PrecacheEvent, type, STRING)
 stock EF_PlaybackEvent(flags, const INVOKER, eventindex, Float:delay, Float:origin[3], Float:angles[3], Float:fparam1, Float:fparam2, iparam1, iparam2, bparam1, bparam2)
 	return engfunc(EngFunc_PlaybackEvent, flags, INVOKER, eventindex, delay, origin, angles, fparam1, fparam2, iparam1, iparam2, bparam1, bparam2)
-stock EF_CheckVisibility(const ENTITY, set[])
+stock EF_CheckVisibility(const ENTITY, set)
 	return engfunc(EngFunc_CheckVisibility, ENTITY, set)
 
 stock EF_GetCurrentPlayer()
@@ -248,4 +248,14 @@ stock DF_pfnAllowLagCompensation()
 stock DF_MetaFunc_CallGameEntity(const STRING[], const ENTITY)
 	return dllfunc(MetaFunc_CallGameEntity, STRING, ENTITY)
 stock DF_ClientUserInfoChanged(const IDPLAYER)
-	return dllfunc(DLLFunc_ClientUserInfoChanged, IDPLAYER)
+	return dllfunc(DLLFunc_ClientUserInfoChanged, IDPLAYER)
+	
+stock DF_UpdateClientData(const ENTITY, sendweapons, const cd = 0)
+	return dllfunc(DLLFunc_UpdateClientData, ENTITY, sendweapons, cd)
+stock DF_AddToFullPack(state = 0, e, ENT, HOST, hostflags, player, set)
+	return dllfunc(state, e, ENT, HOST, hostflags, player, set)
+stock DF_CmdStart(const PLAYER, const CMD = 0, randomSeed)
+	return dllfunc(PLAYER, CMD, randomSeed)
+stock DF_CmdEnd(const PLAYER)
+	return dllfunc(PLAYER)
+