Fixed Anti AFK system

//*Declared New*/
new AFK_Timer[MAX_PLAYERS];
new acstring[128];

new AFKTime[MAX_PLAYERS] = 0;
new AFKCheck[MAX_PLAYERS];

/*Dialogs*/
#define DIALOG_AFK 11

/*Forwards*/
forward AFK_Kick(playerid);
forward AFK_Bye(playerid);

forward Pos_Check(playerid, Float:x, Float:y, Float:z);

/*Publics*/
public OnPlayerSpawn(playerid)
{
    new Float:x, Float:y, Float:z;
    GetPlayerPos(playerid, x, y, z);
    AFKCheck[playerid] = SetTimerEx("Pos_Check", 1000, true, "ifff", playerid, x, y, z);
}

public Pos_Check(playerid, Float:x, Float:y, Float:z)
{
    if(AFKTime[playerid] < 1000)
    {
        new Float:nx, Float:ny, Float:nz;
        if(nx = x && ny == y && nz = z)
            AFKTime[playerid]++;
        else
            AFKTime[playerid] = 0;
    }
    else
    {
        AFK_Kick(playerid);
        KillTimer(AFKCheck[playerid]);
    }
}

stock AFK_Kick(playerid)
{
    ShowPlayerDialog(playerid, DIALOG_AFK, DIALOG_STYLE_MSGBOX, "Are you here ?", "This system is checking if you are AFK.\nYou will see this message if you are in-active for 1 minute.\nYou have 20 seconds to press the continue button.", "Continue", "");
    AFK_Timer[playerid] = SetTimerEx("AFK_Bye", 20000, false, "i", playerid);
    return 1;
}

public AFK_Bye(playerid)
{
    format(acstring, sizeof(acstring), "{FF4500}[ANTI CHEAT]{EE0000} %s (%i){FF4500} has been kicked from server. Reason: AFK (Away From Keyboard)", GetName(playerid), playerid);
    SendClientMessageToAll(COLOR_ORANGE, acstring);
    SetTimer("AntiCheat", 100, false);
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid == DIALOG_AFK)
    {
        if(response)
        {
            KillTimer(AFK_Timer[playerid]);

            AFKCheck[playerid] = SetTimerEx("Pos_Check", 1000, true, "ifff", playerid, x, y, z);
        }
    }
    return 1;
}

public OnPlayerDisconnect(playerid)
{
    KillTimer(AFKCheck[playerid]);
}