#include <a_samp>
#include <core>
#include <float>
 //you need to have include #include <foreach>
new cades;
new GateOpen = 0;

forward InitiateGamemode();
public InitiateGamemode()
{
    SetTimer("GatesOpen",1000, true);
}

public OnPlayerConnect(playerid)
{
    cades = CreateObject(968, 1811.4558, -1894.2816, 12.4562, 0, 0, 0);
    return 1;
}

forward GatesOpen();
public GatesOpen()
{
    foreach(new i:Player)
    {
        if(IsPlayerInRangeOfPoint(i, 10.0, 1817.0948, -1890.4753, 13.4163) && GateOpen == 0)
        {
            {
                MoveObject(cades, 1811.4591, -1894.3032, 13.2392, 5);
                GateOpen = 1;
                SetTimer("GatesClose",5000,0);
        }
        }
    }
}

forward GatesClose();
public GatesClose()
{
     MoveObject(cades, 1811.4558, -1894.2816, 12.4562, 5);
     GateOpen = 0;
}