[Teamkiller324]

PHP Code:


#include    <sdkhooks>
#include    <sdktools>
#include    <multicolors>

#pragma        semicolon    1
#pragma        newdecls    required

public    Plugin    myinfo    =    {
    name        =    "[TF2] Block Jumpers",
    author        =    "Tk /id/Teamkiller324",
    description    =    "Prevent the Rocket Jumper & Sticky Jumper from being equipped.",
    version        =    "0.1",
    url            =    "https://steamcommunity.com/id/Teamkiller324"
}

public void OnMapStart()    {
    for(int i = 0; i < MaxClients; i++)    {
        if(!IsValidClient(i))
            continue;
        
        SDKHook(i, SDKHook_WeaponEquipPost, WeaponEquipPost);
    }
}

public void OnClientPutInServer(int client)    {
    SDKHook(client, SDKHook_WeaponEquipPost, WeaponEquipPost);
}

public void OnClientDisconnect(int client)    {
    SDKUnhook(client, SDKHook_WeaponEquipPost, WeaponEquipPost);
}

Action WeaponEquipPost(int client, int weapon)    {
    if(!IsValidClient(client))
        return    Plugin_Handled;
    
    switch(GetWeaponDefinitionIndex(weapon))    {
        case    237:    {
            CPrintToChat(client, "The {orange}Rocket Jumper {default}is not permitted in this server.");
            RemovePlayerItem(client, weapon);
        }
        case    265:    {
            CPrintToChat(client, "The {orange}Sticky Jumper {default}is not permitted in this server");
            RemovePlayerItem(client, weapon);
        }
    }
    
    return    Plugin_Continue;
}

/**
 *    Returns if the client is valid.
 *
 *    @param client        Client index.
 *    @return                Valid if true, else not valid.
 *    @error                Invalid client index.
 */
stock bool IsValidClient(int client)    {
    if(client == 0)
        return    false;
    if(client == -1)
        return    false;
    if(client < 1 || client > MaxClients)
        return    false;
    if(!IsClientInGame(client))
        return    false;
    if(!IsClientConnected(client))
        return    false;
    if(IsClientReplay(client))
        return    false;
    if(IsClientSourceTV(client))
        return    false;
    return    true;
}

//Taken from Tklib

/**
 *    Get the weapon definition index value
 *
 *    @param weapon        Weapon entity.
 */
stock int GetWeaponDefinitionIndex(int weapon)    {
    return    GetEntProp(weapon, Prop_Send, "m_iItemDefinitionIndex");
} 


This is my approach to this, altough this requires Multicolors to compile, you can edit it to not require multicolors.
Untested but should work.