[Black Rose]

public native_get_user_level(id)  
{ 
    return g_iLevel[id] 
} 

public native_set_user_level(id, amount)  
{ 
    g_iLevel[id] = amount 
}

To make this style 0 you do this:

public native_get_user_level(PluginID, NumParams)
{ 
    return g_iLevel[get_param(1)]
} 

public native_set_user_level(PluginID, NumParams)
{ 
    g_iLevel[get_param(1)] = get_param(2)
}