[NanoC]

Just in case you want to control timer and teleport, i've added 2 cvars on Sherif's code to do it.

• sm_noclipme_teleport - Teleport player to the place he was when he used the command so he wont get stucked. 1 = Enabled | 0 = Disabled (Default 1)
• sm_noclipme_timer - Time in seconds to disable noclip on player (Default 5)

Source Code:

Spoiler

#pragma semicolon 1
 
#include <sourcemod>
#include <sdktools>
#include <multicolors>
#define PLUGIN_VERSION "1.0.1"

#pragma newdecls required

bool g_bUsed[MAXPLAYERS + 1] = {false, ...};
float g_fClientPos[MAXPLAYERS + 1][3];
ConVar  g_cTeleport,
        g_cTimer;

public Plugin myinfo =
{
    name        =   "Self Noclip",
    author      =   "killjoy",
    description =   "personal noclip for Donators",
    version     =   PLUGIN_VERSION,
    url         =   "http://www.epic-nation.com"
};
 
public void OnPluginStart()
{
    RegConsoleCmd("sm_noclipme",NoclipMe,"Toggles noclip on yourself");
    HookEvent("round_start", OnRoundStart);
    
    g_cTeleport = CreateConVar("sm_noclipme_teleport", "1", "Teleport player to the place he was when he used the command so he wont get stucked. 1 = Enabled | 0 = Disabled (Default 1)");
    g_cTimer    = CreateConVar("sm_noclipme_timer", "5",    "Time in seconds to disable noclip on player (Default 5)");
}

public void OnRoundStart(Event event, const char[] name, bool dontBroadcast)
{
    for (int i = 1; i <= MaxClients; i++)
    {
        g_bUsed[i] = false;
    }
}

public Action NoclipMe(int client, int args)
{
    char sAuthID[MAX_NAME_LENGTH];
    GetClientAuthId(client, AuthId_Steam2, sAuthID, sizeof(sAuthID));
    GetClientAbsOrigin(client, g_fClientPos[client]);

    if( client < 1 || !IsClientInGame(client) || !IsPlayerAlive(client ))
    {
        CPrintToChat(client, "{green}[Noclip]{default} You have to be alive to use {green}noclip");
        return Plugin_Handled;
    }

    if (GetEntityMoveType(client) != MOVETYPE_NOCLIP && !g_bUsed[client])
    {
        CreateTimer(g_cTimer.FloatValue, Timer_StopNoclip, client);
        g_bUsed[client] = true;
        LogAction(client, client, "%N (%s) Enabled noclip", client, sAuthID);
        SetEntityMoveType(client, MOVETYPE_NOCLIP);
        CPrintToChat(client, "{green}[Noclip]{default} Noclip {green}enabled.");
    }
    return Plugin_Handled;
}

public Action Timer_StopNoclip(Handle timer, int client)
{
    SetEntityMoveType(client, MOVETYPE_WALK);
    if(g_cTeleport.IntValue >= 1)
    {
        TeleportEntity(client, g_fClientPos[client], NULL_VECTOR, NULL_VECTOR);
    }
    CPrintToChat(client, "{green}[Noclip]{default} Noclip {darkred}disabled.");
}