[pizzahut]

One problem with TFC's teleporters is that you don't know where they lead to. There's a Metamod plugin running on Drippy's 2fort which works great, however it's private AFAIK. I decided to write my own. It sorta works, however it has some flaws.

To get hold of the necessary info, I'm tracking players as they teleport, and make a correlation between teleporters this way. Disadvantage with this method is that when the teleporters are originally built, there is no arrow yet as no one has used the teleporter yet.

I made two versions. The first one draws arrows from the entrance all the way to the exit, across the whole map if necessary. These teleporter routes are only visible by the corresponding team and by spectators.

The 2nd version is the standard approach, that is drawing a single arrow above the tele entrance.

Difficulty with AMXX is that it doesn't give access to certain private entity data of buildings, such as owner of a teleporter and whether it's entrance or exit.

EDIT: What I meant was that reading this thread I was under the impression that dealing with entity pointers inside the private entity data (e.g. owner of a building) wasn't possible without using a modified TFCX module which is available in the linked thread, but probably outdated. Perhaps this was actually the case at the time of writing (2007). However with the info from Arkshine I now managed to access such data, but haven't integrated this into the plugin yet.

v1



v2



There was a bug in the original release, the entity numbers can on some maps be higher than the entity limit (512), e.g. coolfort2. I ran an entity test plugin and it said the maximum allowed entities were 1565. I raised the maximum number to 2048, hopefully this will do!

[Arkshine]

Difficulty with AMXX is that it doesn't give access to certain private entity data of buildings, such as owner of a teleporter and whether it's entrance or exit.

You can access player's private data with fakemeta module and get/set_pdata_*. Just a matter to find the right offset you need.

Well I can help you a bit.

Looking at IDA, when you create a teleporter, it uses real_owner from CBaseEntity to store the player who is building the teleporter, and m_iType from CTFTeleporter to specify entry/exit, and it seems to be 4 for entry and 5 for exit.

Here a dump from linux binary:

CTFTeleporter

CBasePlayer*  m_pPlayer;            /*  1720     4 */
float         m_flInitialUseDelay;  /*  1724     4 */
int           m_iType;              /*  1728     4 */
int           m_iState;             /*  1732     4 */
int           m_iDestroyed;         /*  1736     4 */
int           m_iShardIndex;        /*  1740     4 */
float         m_flMyNextThink;      /*  1744     4 */
float         m_flDamageDelay;      /*  1748     4 */

CBaseEntity

struct CBaseEntity {
	int ()(void) * *           _vptr.CBaseEntity;    /*     0     4 */
	entvars_t *                pev;                  /*     4     4 */
	class CBaseEntity *        m_pGoalEnt;           /*     8     4 */
	class CBaseEntity *        m_pLink;              /*    12     4 */

	/* Bitfield combined with previous fields */

	TYPEDESCRIPTION            m_SaveData[0];        /*     0     0 */

	/* XXX 16 bytes hole, try to pack */

	struct {
		void               (*__pfn)(class CBaseEntity *); /*    16     4 */
		int                __delta;              /*    20     4 */
	} m_pfnThink;                                    /*    16     8 */
	struct {
		void               (*__pfn)(class CBaseEntity *, class CBaseEntity *); /*    24     4 */
		int                __delta;              /*    28     4 */
	} m_pfnTouch;                                    /*    24     8 */
	struct {
		void               (*__pfn)(class CBaseEntity *, class CBaseEntity *, class CBaseEntity *, USE_TYPE, float); /*    32     4 */
		int                __delta;              /*    36     4 */
	} m_pfnUse;                                      /*    32     8 */
	struct {
		void               (*__pfn)(class CBaseEntity *, class CBaseEntity *); /*    40     4 */
		int                __delta;              /*    44     4 */
	} m_pfnBlocked;                                  /*    40     8 */
	/* --- cacheline 1 boundary (64 bytes) --- */
	int                        nextpc;               /*    48     4 */
	int                        lastpc;               /*    52     4 */
	int                        last_impulse;         /*    56     4 */
	int                        armorclass;           /*    60     4 */
	int                        tf_items;             /*    64     4 */
	int                        tf_items_flags;       /*    68     4 */
	int                        no_grenades_1;        /*    72     4 */
	int                        no_grenades_2;        /*    76     4 */
	int                        tp_grenades_1;        /*    80     4 */
	int                        tp_grenades_2;        /*    84     4 */
	string_t                   m_iszGrenadeName;     /*    88     4 */
	BOOL                       got_aliases;          /*    92     4 */
	BOOL                       cheat_check;          /*    96     4 */
	BOOL                       is_removed;           /*   100     4 */
	BOOL                       is_undercover;        /*   104     4 */
	BOOL                       is_building;          /*   108     4 */
	/* --- cacheline 2 boundary (128 bytes) --- */
	BOOL                       is_detpacking;        /*   112     4 */
	BOOL                       is_feigning;          /*   116     4 */
	BOOL                       is_unableto_spy_or_teleport; /*   120     4 */
	BOOL                       has_disconnected;     /*   124     4 */
	BOOL                       fClientGrenadePrimed; /*   128     4 */
	BOOL                       bRemoveGrenade;       /*   132     4 */
	short unsigned int         m_usBuildingEvent;    /*   136     2 */

	/* XXX 2 bytes hole, try to pack */

	int                        m_iBuildingEventState; /*   140     4 */
	class Vector              m_vOldOrigin;          /*   144    12 */
	int                        tfstate;              /*   156     4 */
	int                        items;                /*   160     4 */
	int                        weapon;               /*   164     4 */
	int                        m_iPrimedGrenType;    /*   168     4 */
	class CBaseEntity *        observer_list;        /*   172     4 */
	/* --- cacheline 3 boundary (192 bytes) --- */
	class EHANDLE             m_pOtherSection;       /*   176     8 */
	int                        m_iRightBound;        /*   184     4 */
	int                        m_iLeftBound;         /*   188     4 */
	float                      cl_no_grenades_1;     /*   192     4 */
	float                      cl_no_grenades_2;     /*   196     4 */
	int *                      current_ammo;         /*   200     4 */
	float                      currentammo;          /*   204     4 */
	int                        maxammo_medikit;      /*   208     4 */
	int                        ammo_medikit;         /*   212     4 */
	int                        maxammo_shells;       /*   216     4 */
	int                        ammo_detpack;         /*   220     4 */
	int                        maxammo_detpack;      /*   224     4 */
	int                        ammo_shells;          /*   228     4 */
	int                        maxammo_nails;        /*   232     4 */
	int                        ammo_nails;           /*   236     4 */
	/* --- cacheline 4 boundary (256 bytes) --- */
	int                        maxammo_cells;        /*   240     4 */
	int                        ammo_cells;           /*   244     4 */
	int                        maxammo_rockets;      /*   248     4 */
	int                        ammo_rockets;         /*   252     4 */
	int                        items_allowed;        /*   256     4 */
	float                      armor_allowed;        /*   260     4 */
	float                      maxarmor;             /*   264     4 */
	int                        exec_scripts;         /*   268     4 */
	int                        exec_map_scripts;     /*   272     4 */
	int                        display_class_briefing; /*   276     4 */
	int                        take_screenshots;     /*   280     4 */
	int                        local_blood;          /*   284     4 */
	float                      weaponmode;           /*   288     4 */
	float                      motd;                 /*   292     4 */
	float                      current_menu;         /*   296     4 */
	float                      menu_displaytime;     /*   300     4 */
	/* --- cacheline 5 boundary (320 bytes) --- */
	float                      menu_refreshtime;     /*   304     4 */
	float                      m_flSafetyCheckTime;  /*   308     4 */
	int                        team_no;              /*   312     4 */
	int                        lives;                /*   316     4 */
	int                        infection_team_no;    /*   320     4 */
	int                        real_frags;           /*   324     4 */
	float                      respawn_time;         /*   328     4 */
	float                      suicide_time;         /*   332     4 */
	class EHANDLE             building;              /*   336     8 */
	float                      building_wait;        /*   344     4 */
	class EHANDLE             real_owner;            /*   348     8 */
	float                      has_dispenser;        /*   356     4 */
	float                      has_sentry;           /*   360     4 */
	float                      has_entry_teleporter; /*   364     4 */
	/* --- cacheline 6 boundary (384 bytes) --- */
	float                      has_exit_teleporter;  /*   368     4 */
	int                        weapons_carried;      /*   372     4 */
	float                      current_weapon;       /*   376     4 */
	int                        last_weapon;          /*   380     4 */
	float                      last_weaponmode;      /*   384     4 */
	float                      reload_shotgun;       /*   388     4 */
	float                      reload_super_shotgun; /*   392     4 */
	float                      reload_nailgun;       /*   396     4 */
	float                      reload_super_nailgun; /*   400     4 */
	float                      reload_grenade_launcher; /*   404     4 */
	float                      reload_rocket_launcher; /*   408     4 */
	float                      reload_flamethrower;  /*   412     4 */
	float                      reload_incendiary;    /*   416     4 */
	float                      heat;                 /*   420     4 */
	float                      sniper_zoom;          /*   424     4 */
	float                      immune_to_check;      /*   428     4 */
	/* --- cacheline 7 boundary (448 bytes) --- */
	float                      last_saveme_sound;    /*   432     4 */
	class Vector              head_shot_vector;      /*   436    12 */
	float                      leg_damage;           /*   448     4 */
	float                      cheat_level;          /*   452     4 */
	float                      FlashTime;            /*   456     4 */
	float                      nailpos;              /*   460     4 */
	float                      old_leg_damage;       /*   464     4 */
	float                      clientHalluc;         /*   468     4 */
	float                      clientTranq;          /*   472     4 */
	float                      no_active_nail_grens; /*   476     4 */
	float                      no_active_napalm_grens; /*   480     4 */
	float                      no_active_gas_grens;  /*   484     4 */
	float                      numflames;            /*   488     4 */
	float                      timecount;            /*   492     4 */
	/* --- cacheline 8 boundary (512 bytes) --- */
	char *                     flame_id;             /*   496     4 */
	int                        undercover_team;      /*   500     4 */
	int                        undercover_skin;      /*   504     4 */
	class EHANDLE             undercover_target;     /*   508     8 */
	float                      StatusRefreshTime;    /*   516     4 */
	float                      StatusBarSize;        /*   520     4 */
	float                      StatusBarRes;         /*   524     4 */
	float                      ScannerOn;            /*   528     4 */
	int                        tf_id;                /*   532     4 */
	int                        teamkills;            /*   536     4 */
	BOOL                       is_admin;             /*   540     4 */
	int                        admin_mode;           /*   544     4 */
	class EHANDLE             admin_use;             /*   548     8 */
	int                        ip;                   /*   556     4 */
	/* --- cacheline 9 boundary (576 bytes) --- */
	int                        goal_no;              /*   560     4 */
	int                        group_no;             /*   564     4 */
	int                        goal_state;           /*   568     4 */
	int                        owned_by;             /*   572     4 */
	string_t                   teamcheck;            /*   576     4 */
	string_t                   owned_by_teamcheck;   /*   580     4 */
	int                        goal_activation;      /*   584     4 */
	int                        goal_effects;         /*   588     4 */
	int                        goal_result;          /*   592     4 */
	int                        goal_group;           /*   596     4 */
	int                        else_goal;            /*   600     4 */
	int                        if_goal_is_active;    /*   604     4 */
	int                        if_goal_is_inactive;  /*   608     4 */
	int                        if_goal_is_removed;   /*   612     4 */
	int                        if_group_is_active;   /*   616     4 */
	int                        if_group_is_inactive; /*   620     4 */
	/* --- cacheline 10 boundary (640 bytes) --- */
	int                        if_group_is_removed;  /*   624     4 */
	float                      search_time;          /*   628     4 */
	float                      t_length;             /*   632     4 */
	int                        activate_goal_no;     /*   636     4 */
	int                        inactivate_goal_no;   /*   640     4 */
	int                        remove_goal_no;       /*   644     4 */
	int                        restore_goal_no;      /*   648     4 */
	int                        activate_group_no;    /*   652     4 */
	int                        inactivate_group_no;  /*   656     4 */
	int                        remove_group_no;      /*   660     4 */
	int                        restore_group_no;     /*   664     4 */
	BOOL                       m_bAddBonuses;        /*   668     4 */
	class Vector              goal_min;              /*   672    12 */
	class Vector              goal_max;              /*   684    12 */
	/* --- cacheline 11 boundary (704 bytes) was 8 bytes ago --- */
	string_t                   replacement_model;    /*   696     4 */
	int                        replacement_model_body; /*   700     4 */
	int                        replacement_model_skin; /*   704     4 */
	int                        replacement_model_flags; /*   708     4 */
	int                        has_item_from_group;  /*   712     4 */
	int                        hasnt_item_from_group; /*   716     4 */
	int                        remove_item_group;    /*   720     4 */
	int                        return_item_no;       /*   724     4 */
	int                        if_item_has_moved;    /*   728     4 */
	int                        if_item_hasnt_moved;  /*   732     4 */
	int                        remove_spawnpoint;    /*   736     4 */
	int                        restore_spawnpoint;   /*   740     4 */
	int                        remove_spawngroup;    /*   744     4 */
	int                        restore_spawngroup;   /*   748     4 */
	/* --- cacheline 12 boundary (768 bytes) --- */
	int                        display_item_status[4]; /*   752    16 */
	string_t                   team_str_home;        /*   768     4 */
	string_t                   team_str_moved;       /*   772     4 */
	string_t                   team_str_carried;     /*   776     4 */
	string_t                   non_team_str_home;    /*   780     4 */
	string_t                   non_team_str_moved;   /*   784     4 */
	string_t                   non_team_str_carried; /*   788     4 */
	int                        ex_skill_min;         /*   792     4 */
	int                        ex_skill_max;         /*   796     4 */
	int                        increase_team[4];     /*   800    16 */
	/* --- cacheline 13 boundary (832 bytes) --- */
	int                        increase_team_owned_by; /*   816     4 */
	float                      wait;                 /*   820     4 */
	int                        count;                /*   824     4 */
	int                        axhitme;              /*   828     4 */
	float                      drop_time;            /*   832     4 */
	class Vector              redrop_origin;         /*   836    12 */
	int                        redrop_count;         /*   848     4 */
	float                      attack_finished;      /*   852     4 */
	float                      distance;             /*   856     4 */
	int                        speed_reduction;      /*   860     4 */
	float                      m_flEndRoundTime;     /*   864     4 */
	string_t                   m_iszEndRoundMsg_Team1_Win; /*   868     4 */
	string_t                   m_iszEndRoundMsg_Team2_Win; /*   872     4 */
	string_t                   m_iszEndRoundMsg_Team3_Win; /*   876     4 */
	/* --- cacheline 14 boundary (896 bytes) --- */
	string_t                   m_iszEndRoundMsg_Team4_Win; /*   880     4 */
	string_t                   m_iszEndRoundMsg_Team1_Lose; /*   884     4 */
	string_t                   m_iszEndRoundMsg_Team2_Lose; /*   888     4 */
	string_t                   m_iszEndRoundMsg_Team3_Lose; /*   892     4 */
	string_t                   m_iszEndRoundMsg_Team4_Lose; /*   896     4 */
	string_t                   m_iszEndRoundMsg_Team1; /*   900     4 */
	string_t                   m_iszEndRoundMsg_Team2; /*   904     4 */
	string_t                   m_iszEndRoundMsg_Team3; /*   908     4 */
	string_t                   m_iszEndRoundMsg_Team4; /*   912     4 */
	string_t                   m_iszEndRoundMsg_OwnedBy; /*   916     4 */
	string_t                   m_iszEndRoundMsg_NonOwnedBy; /*   920     4 */
	string_t                   killtarget;           /*   924     4 */
	string_t                   noise4;               /*   928     4 */
	string_t                   broadcast;            /*   932     4 */
	string_t                   team_broadcast;       /*   936     4 */
	string_t                   non_team_broadcast;   /*   940     4 */
	/* --- cacheline 15 boundary (960 bytes) --- */
	string_t                   owners_team_broadcast; /*   944     4 */
	string_t                   non_owners_team_broadcast; /*   948     4 */
	string_t                   team_drop;            /*   952     4 */
	string_t                   non_team_drop;        /*   956     4 */
	string_t                   org_broadcast;        /*   960     4 */
	string_t                   org_team_broadcast;   /*   964     4 */
	string_t                   org_non_team_broadcast; /*   968     4 */
	string_t                   org_owners_team_broadcast; /*   972     4 */
	string_t                   org_non_owners_team_broadcast; /*   976     4 */
	string_t                   org_team_drop;        /*   980     4 */
	string_t                   org_non_team_drop;    /*   984     4 */
	string_t                   org_message;          /*   988     4 */
	string_t                   org_noise3;           /*   992     4 */
	string_t                   org_noise4;           /*   996     4 */
	string_t                   netname_broadcast;    /*  1000     4 */
	string_t                   netname_team_broadcast; /*  1004     4 */
	/* --- cacheline 16 boundary (1024 bytes) --- */
	string_t                   netname_non_team_broadcast; /*  1008     4 */
	string_t                   netname_owners_team_broadcast; /*  1012     4 */
	string_t                   netname_team_drop;    /*  1016     4 */
	string_t                   netname_non_team_drop; /*  1020     4 */
	string_t                   speak;                /*  1024     4 */
	string_t                   AP_speak;             /*  1028     4 */
	string_t                   team_speak;           /*  1032     4 */
	string_t                   non_team_speak;       /*  1036     4 */
	string_t                   owners_team_speak;    /*  1040     4 */
	string_t                   non_owners_team_speak; /*  1044     4 */
	string_t                   deathtype;            /*  1048     4 */
	int                        all_active;           /*  1052     4 */
	int                        item_list;            /*  1056     4 */
	float                      delay_time;           /*  1060     4 */
	BOOL                       do_triggerwork;       /*  1064     4 */
	float                      rv_s_h;               /*  1068     4 */
	/* --- cacheline 17 boundary (1088 bytes) --- */
	float                      rs_s_h;               /*  1072     4 */
	float                      rv_gr;                /*  1076     4 */
	float                      rs_gr;                /*  1080     4 */
	float                      rv_g;                 /*  1084     4 */
	float                      rs_g;                 /*  1088     4 */
	float                      has_abbreviated;      /*  1092     4 */
	int                        timer_type;           /*  1096     4 */
	float                      invincible_finished;  /*  1100     4 */
	float                      invisible_finished;   /*  1104     4 */
	float                      super_damage_finished; /*  1108     4 */
	float                      radsuit_finished;     /*  1112     4 */
	BOOL                       m_bLostInvincSound;   /*  1116     4 */
	BOOL                       m_bLostInvisSound;    /*  1120     4 */
	BOOL                       m_bLostSuperSound;    /*  1124     4 */
	BOOL                       m_bLostRadSound;      /*  1128     4 */
	float                      m_fInvincSound;       /*  1132     4 */
	/* --- cacheline 18 boundary (1152 bytes) --- */
	float                      m_fSuperSound;        /*  1136     4 */

To use these char-based offsets, you need to calculate first the value windows-based.

Generally, for classes derived from CBaseMonster, it's +20 for linux, otherwise +16.

Here CTFTeleporter, should be +20 and +16 for CBaseEntity.

So:

real_owner = 348 - 16 = 332 ; can be used I think with get_pdata_ent (but this native is int-based, so you need to do 332 / 4). In 1.8.3-dev, you can use 332 with get_pdata_ehandle
m_iType = 1728 - 20 = 1708 ; can be used with get_pdata_int (careful too, this is unfortunately int-based too, so you need to do 708 / 4).

Member with type starting with CBase, like m_pPLayer can be retrieved with get_pdata_cbase (hamsandwich module)

Tell if you don't understand something.

[pizzahut]

Thanks for the info Arkshine. I read about offsets in the thread I linked, just wasn't aware that the newer version of AMXX can deal better with this private data.

Due to Valve's mess up with the SteamCMD version of TFC (double rockets, sporadically broken spy disguise, game description not updating, custom sprays not up- or downloading) we're still running a 2012 build of the HLDS and AMXX. Would the SteamCMD compatible version of AMXX work fine with the old HLDS?

version
Protocol version 48
Exe version 1.1.2.2/Stdio (tfc)
Exe build: 11:30:00 Aug 28 2012 (5787)

meta version
Metamod v1.20p36  2013/02/18 (5:13)
by Will Day
   http://www.metamod.org/
 Patch: Metamod-P (mm-p) v36
 by Jussi Kivilinna
    http://metamod-p.sourceforge.net/
compiled: Feb 19 2013, 00:06:29 EET (optimized)

amxx version
AMX Mod X 1.8.2-dev (http://www.amxmodx.org)
Authors:
<TAB>David "BAILOPAN" Anderson, Pavol "PM OnoTo" Marko
<TAB>Felix "SniperBeamer" Geyer, Jonny "Got His Gun" Bergstrom
<TAB>Lukasz "SidLuke" Wlasinski, Christian "Basic-Master" Hammacher
<TAB>Borja "faluco" Ferrer, Scott "Damaged Soul" Ehlert
Compiled: Jul 27 2012, 12:58:57
Build ID: 1.8.2-dev 26:81ff4ff3da92
Core mode: JIT+ASM32

[Arkshine]

AMXX 1.8.2+, likely. The only thing I see is hamdata.ini, you should probably not update this file, values have been changed after the steam update. But it's manually fixable. If you want to use 1.8.2/3 for example, because of some fixes or many missing virtual functions have been added, you can fix file like this: you keep "pev" and "base" and for tfc linux only you add +2 to all values.

By the way, If you want I can see for integrating schnitzelmaker's changes for 1.8.3-dev.

[pizzahut]

#include <amxmodx>
#include <engine>
#include <fakemeta>

// old tfc_i386.so (2012): 12
// new tfc.so (2013): 16
#define linux_diff 12

public plugin_init()
{
	register_plugin("pdata test", "1.4", "pizzahut")
	register_clcmd("say test", "say_test")
}

public say_test(id)
{
	static tele_id, tele_owner, tele_type
	client_print(id, print_chat, "Check console")
	tele_id = -1
	while (tele_id = find_ent_by_class(tele_id, "building_teleporter"))
	{
		client_print(id, print_console, "tele id: %d", tele_id)
		tele_owner = get_pdata_ent(tele_id, 332, linux_diff)
		if (is_valid_ent(tele_owner))
			client_print(id, print_console, "owner id: %d", tele_owner)
		tele_type = get_pdata_int(tele_id, 427)
		switch (tele_type)
		{
			case 4: client_print(id, print_console, "type: entrance")
			case 5: client_print(id, print_console, "type: exit")
		}
	}
	return PLUGIN_HANDLED
}

[Arkshine]

get_pdata_ent is int-based too. Only _string and the new natives introduced in 1.8.3 are char-based.
And yeah, the linux extra offset you provide in the native, you should / 4 as well (so either 5, which is the default, or 4).

[SpannerSpammer]

Like Pizzahut, I too have been spoiled by Drippy's teleporter arrows, so I made my own MetaMod based version
a while back. It was a little laggy and the code was not optimized, but it worked. I had never even considered
porting it to AMX because I thought there wasn't any way to manipulate entity edict offsets, I guess I was
wrong. This helped a LOT guys, Thanks. With this I can port my Teleporter Exit Camera function to AMX.


Here's a little something for you Pizzahut, the attached SMA file is some old MM building offset code I just ported.
Note: I don't currently have a Linux box to test it out on so you will need to adjust the linux offset, just let me
know what the value should be. This code works on amx 1.8.2 on Windows, I don't know about later versions.

NOTE: For teleporters use this offset for TYPE

//                       raw windows offset / 4
#define PD_TELE_STATE 		124 / 4

These are the teleporter state values associated with this offet

#define TELE_NOT_PAIRED 		0	// Entry or Exit is idle
#define TELE_ENTRY_CHARGE		4	// Entry ONLY (charging)
#define TELE_EXIT_PAIRED 		8	// Exit ONLY (paired with Entry)
#define TELE_ENTRY_READY 		516	// Entry ONLY (fully charged, ready to use)

I can give you some steps on how to optimize your code if you want.