[Release] NoKnife Plugin

[zxz0O0]

This Plugin should disable Knife damage.

Requirements:
@Nukem's dedicated server addon
MW3 Dedicated Server

This plugin uses signature scans to find the offsets, it *should* work on all MW3 versions.

Commands:
!knife - Show if knifing enabled/disabled
!knife 0 - Disable knifing
!knife 1 - Enable knifing

sv_config:

Code:

[Knife]
Enabled=1
// 0 or 1
ChatCommands=1
// 0 or 1, enable/disable chat commands above

Obsolete source code

CSHARP Code

using System;
using System.Collections.Generic;
using System.Text;
using Addon;
 
namespace NoKnife
{
    public class Class1 : CPlugin
    {
        [System.Runtime.InteropServices.DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool WriteProcessMemory(IntPtr hProcess, int lpBaseAddress, byte[] lpBuffer, int nSize, out int lpNumberOfBytesWritten);
 
        string str_Knife = "enabled";
 
        public override void OnServerLoad()
        {
            ServerPrint("\n NoKnife Plugin loaded \n Author: zxz0O0 \n Thanks to Nukem, Jariz, Pozzuh and Makavel\n");
            ServerPrint(" youtube.com/zxz0O0 \n itsmods.com\n");
 
            if (GetServerCFG("Knife", "Enabled", "1") == "0")
                Knife(false);
        }
 
        private void Knife(bool bl)
        {
            if (bl == false)
            {
                int oP;
                byte[] bytes = { 0xD9, 0x05, 0xD8, 0xFC, 0x76, 0x00 };
                WriteProcessMemory(((IntPtr)(-1)), 0x004B75E0, bytes, bytes.Length, out oP);
                str_Knife = "disabled";
                ServerSay("Knifing disabled", false);
            }
            else
            {
                int oP;
                byte[] bytes = { 0xD9, 0x05, 0xD0, 0x5A, 0x78, 0x00 };
                WriteProcessMemory(((IntPtr)(-1)), 0x004B75E0, bytes, bytes.Length, out oP);
                str_Knife = "enabled";
                ServerSay("Knifing enabled", false);
            }
        }
 
        public override ChatType OnSay(string Message, ServerClient Client)
        {
            if (Message == "!knife")
            {
                TellClient(Client.ClientNum, "PM: Knifing " + str_Knife, true);
                return ChatType.ChatNone;
            }
            else if (Message.StartsWith("!knife "))
            {
                if (Message == "!knife 0")
                    Knife(false);
                else if (Message == "!knife 1")
                    Knife(true);
 
                return ChatType.ChatNone;
            }
            return ChatType.ChatContinue;
        }
    }
}

Thanks to @makavel for testing and helping and thanks to @Nukem for telling how to fix the bugs.

Related links

[Pozzuh]

Why did you set it to 11 and not to 1 or 0?

[zxz0O0]

(03-03-2012 10:47)Pozzuh Wrote:  Why did you set it to 11 and not to 1 or 0?

If you set it to 0 you are immune to weapons too. If you set it 0 < x < 10 hitboxes are weird. Not sure what causes that, but I tried the highest possible value where you can not knife and 11 should be ok.

[Pozzuh]

So what dvar is that?

Related links

[zxz0O0]

(03-03-2012 11:06)Pozzuh Wrote:  So what dvar is that?

player_MeleeRange obviously.

[Pozzuh]

How would setting that to 0 make all players invincible? That didn't happen in any cod.

[zxz0O0]

(03-03-2012 11:12)Pozzuh Wrote:  How would setting that to 0 make all players invincible? That didn't happen in any cod.

As you can see it's a float address and of course other dvars are also using that float dvar.

[d0h!]

good one +rep

Related links

[yamraj]

(03-03-2012 11:25)zxz0O0 Wrote:  

(03-03-2012 11:12)Pozzuh Wrote:  How would setting that to 0 make all players invincible? That didn't happen in any cod.

As you can see it's a float address and of course other dvars are also using that float dvar.

Well he`s right. It changes some others dvar value also so that effect to other dvar`s aswell which are also associated with the same float value.

[JariZ]

Thanks for adding me to the credits. Awesome plugin.