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[L4D & L4D2] Reverse Friendly-Fire [v2.7.1 (05-Jun-2021)]


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Author
Mystik Spiral
Senior Member
Join Date: Oct 2020
Location: Orlando, FL
Plugin ID:
7408
Plugin Version:
2.7.1
Plugin Category:
Gameplay
Plugin Game:
Left 4 Dead
Plugin Dependencies:
    Servers with this Plugin:
    3 
    Plugin Description:
    Reverses friendly-fire... attacker takes damage, victim does not.
    Old 12-05-2020 , 18:49   [L4D & L4D2] Reverse Friendly-Fire [v2.7.1 (05-Jun-2021)]
    Reply With Quote #1

    .
    Reverse Friendly-Fire (l4d_reverse_ff) by Mystik Spiral

    Purpose:

    Left4Dead(2) SourceMod plugin that reverses friendly-fire weapon damage.
    Attacker takes damage, victim does not.


    Objectives:
    • Do not allow griefers to cause friendly-fire damage to other players.
    • Incentivize all players to improve their shooting tactics and aim.

    Description and options:

    Reverses friendly-fire weapon damage for survivors and claw attacks for infected.
    Does not reverse burn/blast damage, except for grenade launcher (see Suggestion section below).
    Supports client language translation, currently English, French, Spanish, and Russian.

    Please note the following for the true/false options below:
    Regardless of the setting, the victim never takes damage from the attacker.
    True means friendly-fire is reversed for that option and the attacker takes all of the damage.
    False means friendy-fire is disabled for that option and the attacker does not take any damage.
    • Option to ReverseFF when attacker is an admin. [reverseff_admin (default: 0/false)]
    • Option to ReverseFF when victim is a bot. [reverseff_bot (default: 0/false)]
    • Option to ReverseFF when victim is incapacitated. [reverseff_incapped (default: 0/false)]
    • Option to ReverseFF when attacker is incapacitated. [reverseff_attackerincapped (default: 0/false)]
    • Option to ReverseFF when damage from mounted gun. [reverseff_mountedgun (default: 1/true)]
    • Option to ReverseFF when damage from melee weapon. [reverseff_melee (default: 1/true)]
    • Option to ReverseFF when damage from chainsaw. [reverseff_chainsaw (default: 1/true)]
    • Option to ReverseFF during Smoker pull or Charger carry. [reverseff_pullcarry (default: 0/false)]
    • Option to specify extra damage if attacker used explosive/incendiary ammo. [reverseff_multiplier (default: 1.125 = 12.5%)]
    • Option to specify percentage of damage reversed for survivor (0=min, 2=max). [reverseff_dmgmodifier (default: 1.0=damage unmodified)]
    • Option to specify percentage of damage reversed for infected (0=min, 2=max). [reverseff_dmgmodinfected (default: 1.0=damage unmodified)]
    • Option to specify maximum survivor damage allowed per chapter before kick/ban (0=disable). [reverseff_survivormaxdmg (default: 200)]
    • Option to specify maximum infected damage allowed per chapter before kick/ban (0=disable). [reverseff_infectedmaxdmg (default: 50)]
    • Option to specify maximum tank damage allowed per chapter before kick/ban (0=disable). [reverseff_tankmaxdmg (default: 300)]
    • Option to specify kick/ban duration in minutes. (0=permanent ban, -1=kick instead of ban). [reverseff_banduration (default: 10)]
    • Option to enable/disable plugin by game mode. [reverseff_modes_on, reverseff_modes_off, reverseff_modes_tog]

    Notes:

    Without this plugin, if you shoot another player while they are being pulled by the Smoker (before they are choked) or while being carried by the Charger (before they are pummeled), it would trigger friendly-fire. Setting reverseff_pullcarry=0 allows you to turn this off, and is the default. If you shoot another player while they are pinned by the Hunter or Jockey, friendly-fire is blocked, regardless of the reverseff_pullcarry setting.

    If you set reverseff_dmgmodifier=0, it effectively disables all friendly-fire. The default setting is 1, which does not modify the damage amount, just reverses it. Setting it lower than 1 reduces the damage reversed to the attacker, and setting it higher than 1 increases the damage reversed to the attacker.


    Suggestion:

    To minimize griefer impact, use the Reverse Friendly-Fire plugin along with...

    ReverseBurn and ExplosionAnnouncer (l4d_ReverseBurn_and_ExplosionAnnouncer)
    • Smart reverse of burn damage from explodables, like gascans.
    • Option to reverse blast damage, like propane tanks.
    ReverseBurn and ThrowableAnnouncer (l4d_ReverseBurn_and_ThrowableAnnouncer)
    • Smart reverse of burn damage from throwables, specifically molotovs.
    • Option to reverse blast damage, like pipe bombs.
    When these three plugins are combined, griefers will usually get frustrated and leave since they cannot damage anyone other than themselves.
    Although griefers will take significant damage, other players may not notice any difference in game play (except laughing at stupid griefer fails).


    Credits:

    Chainsaw damage fix by pan0s
    Game modes on/off/tog by Silvers


    Want to contribute code enhancements?
    Create a pull request using this GitHub repository: https://github.com/Mystik-Spiral/l4d_reverse_ff

    Plugin discussion: https://forums.alliedmods.net/showthread.php?t=329035


    Most recent update:
    Code:
    05-Jun-2021 v2.7.1
    - Add damage modifier for infected (reverseff_dmgmodinfected) ConVar to decrease/increase reversed damage by a percentage.
    -- Allows damage modifier to be set separately for infected and survivors.
    - Ensure reverseff_dmgmod* ConVars have minimum value of 0 (no damage reverse) and maximum value of 2 (double damage reverse).
    - When reverseff_dmgmod* is not 0 (no damage reverse) or 1 (unmodified damage reverse), ensure minimum inflicted damage is 1.
    - Add Spanish (es) and Russian (ru) to existing English (en) and French (fr) translations.

    Update history for older versions:
    Spoiler

    If you are upgrading from release 2.5 or lower, please note that you will need to manually remove the "reverseff_self" entry from the l4d_reverse_ff.cfg file, or just delete the l4d_reverse_ff.cfg file and let the plugin create a new one.

    The phrases file changed in the 2.7 release, is REQUIRED, and must be downloaded/copied to the "addons\sourcemod\translations" directory.
    .
    Attached Files
    File Type: sp Get Plugin or Get Source (l4d_reverse_ff.sp - 36 views - 30.6 KB)
    File Type: txt l4d_reverse_ff.phrases.txt (2.3 KB, 25 views)
    __________________

    Last edited by Mystik Spiral; 06-14-2021 at 07:31. Reason: updated version
    Mystik Spiral is offline
    Mystik Spiral
    Senior Member
    Join Date: Oct 2020
    Location: Orlando, FL
    Old 12-05-2020 , 19:13   Re: [L4D2] Reverse Friendly-Fire [v1.0 (05-Dec-2020)]
    Reply With Quote #2

    I know there are many friendly-fire plugins out there already, but it has been my experience that most of them do not work at all or have too many bugs to be useful. I had been using one of those other plugins for a while, and fixed several bugs with it, but some things just could not be fixed (hooking player_hurt), so I created this new plugin using the new (SM 1.7+) syntax. This plugin hooks SDKHook_OnTakeDamage to intercept damage, and uses SDKHooks_TakeDamage to reverse the damage. Note that if you shoot a teammate with explosive ammo, you (the attacker) will be stumbled, not the victim. Similarly, if you shoot a teammate with incendiary ammo, you (the attacker) will be lit on fire for a few seconds, not the victim.

    Last edited by Mystik Spiral; 12-21-2020 at 13:36.
    Mystik Spiral is offline
    user2000
    Member
    Join Date: Nov 2015
    Location: Peru - Lima
    Old 12-05-2020 , 21:54   Re: [L4D2] Reverse Friendly-Fire [v1.0 (05-Dec-2020)]
    Reply With Quote #3

    interesting I'm going to try it

    thanks
    user2000 is offline
    Lolfaceftw
    Junior Member
    Join Date: Dec 2020
    Old 12-05-2020 , 22:24   Re: [L4D2] Reverse Friendly-Fire [v1.0 (05-Dec-2020)]
    Reply With Quote #4

    Awesome. I'll try this I already have the other reverse_ff plugin; let's see the difference.
    Lolfaceftw is offline
    Mystik Spiral
    Senior Member
    Join Date: Oct 2020
    Location: Orlando, FL
    Old 12-08-2020 , 15:08   Re: [L4D2] Reverse Friendly-Fire [v1.1 (08-Dec-2020)]
    Reply With Quote #5

    Released v1.1...

    If attacker weapon has incendiary/explosive ammo, increase damage to attacker by 12.5%.

    I haven't yet figured out how to tell if the grenade launcher (projectile) has incendiary/explosive ammo, so there is no extra damage for that weapon yet. All other primary weapons should be working fine with higher damage when using special ammo. The special ammo extra damage is not a true reversal, but is a good compromise until/if I figure out how to directly reverse it.
    Mystik Spiral is offline
    user2000
    Member
    Join Date: Nov 2015
    Location: Peru - Lima
    Old 12-08-2020 , 18:42   Re: [L4D2] Reverse Friendly-Fire [v1.1 (08-Dec-2020)]
    Reply With Quote #6

    this plugin is perfect for me
    It would be possible to add a .cfg to activate or deactivate the immunity to the administrator or to control the weapon damage
    user2000 is offline
    Mystik Spiral
    Senior Member
    Join Date: Oct 2020
    Location: Orlando, FL
    Old 12-08-2020 , 18:56   Re: [L4D2] Reverse Friendly-Fire [v1.1 (08-Dec-2020)]
    Reply With Quote #7

    Quote:
    Originally Posted by user2000 View Post
    this plugin is perfect for me
    It would be possible to add a .cfg to activate or deactivate the immunity to the administrator or to control the weapon damage
    It might be a while, but I would like to add some ConVars for that, and also to enable/disable the plugin. And as I mentioned in the last post, I also want to reverse damage for grenade launcher projectiles.
    Mystik Spiral is offline
    Mystik Spiral
    Senior Member
    Join Date: Oct 2020
    Location: Orlando, FL
    Old 12-09-2020 , 08:01   Re: [L4D2] Reverse Friendly-Fire [v1.2 (09-Dec-2020)]
    Reply With Quote #8

    I was able to get to this sooner than expected and released version 1.2...

    Code:
    Added dynamically changeable ConVars:
    
      reverseff_enabled:  	set to 1 to enable plugin, 0 to disable
      reverseff_immunity:  	set to 1 to make admins immune to reverse FF damage, set to 0 to reverse FF damage for everyone
      reverseff_multiplier: if attacker is using explosive or incendiary ammo, increase damage by this multiplier
    			default is 1.125 (12.5% extra damage), 1.0=no extra damage, 2.0=double damage
    
    Also added a standard ConVar:
    
      reverseff_version: 	shows the plugin version
    If you are a server admin, and you have the admin system active on your client, you can change these ConVars during the middle of a game. For example, bring up a chat window and type...

    !cvar reverseff_immunity 0

    ...to instantly make everyone, including admins, take reverse friendly-fire damage. Another example...

    !cvar reverseff_multiplier 1.25

    ...to instantly make explosive/incendiary ammo do 25% more damage to the attacker than regular ammo.

    Of course, the changes are not permanent. To make your changes permanent, edit the values in the cfg/sourcemod/l4d_reverse_ff.cfg file.

    Last edited by Mystik Spiral; 12-09-2020 at 08:52. Reason: add examples
    Mystik Spiral is offline
    user2000
    Member
    Join Date: Nov 2015
    Location: Peru - Lima
    Old 12-09-2020 , 17:36   Re: [L4D2] Reverse Friendly-Fire [v1.2 (09-Dec-2020)]
    Reply With Quote #9

    thanks for updating the plugin
    user2000 is offline
    Mystik Spiral
    Senior Member
    Join Date: Oct 2020
    Location: Orlando, FL
    Old 12-13-2020 , 18:12   Re: [L4D2] Reverse Friendly-Fire [v1.3 (13-Dec-2020)]
    Reply With Quote #10

    New version 1.3 released, see original post for download.

    Added new ConVar "reverseff_bot" to determine if friendly-fire against bots should have damage reversed. Default is no. I created this option because bots often move in unpredictable and stupid ways, including walking into your line of fire even when you are crouched and not moving. With the default value, only attacks against human victims will reverse damage.

    The plugin now also detects when the grenade launcher has incendiary ammo and deals the appropriate (reverseff_multiplier) extra damage for it. Explosive ammo for the grenade launcher is not checked, because in my tests, there was no difference in the amount of damage between regular explosive ammo and explosive explosive ammo. I think that explosive explosive ammo for the grenade launcher may just expand the kill/stumble zone, but I'm not sure about that.

    If you have an older version of the plugin installed, you will need to add an entry to the "l4d_reverse_ff.cfg file to use the new ConVar, but I recommend you just delete the cfg file and let the plugin create a new one for you.

    Last edited by Mystik Spiral; 12-13-2020 at 18:14.
    Mystik Spiral is offline
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