static playerIdle[MAX_PLAYERS];
static Float:playerIdlePos[MAX_PLAYERS][3];

public OnGameModeInit()
{
  SetTimer("AntiIdle", 30000, 1);
  return 1;
}

forward AntiIdle();
public AntiIdle()
{
     new Float:x,Float:y,Float:z;
     for(new playerid=0; playerid<MAX_PLAYERS; playerid++)
  {
         if(IsPlayerConnected(playerid))
   {
             GetPlayerPos(playerid, x, y, z);
             if(x == playerIdlePos[playerid][0] && y == playerIdlePos[playerid][1] && z == playerIdlePos[playerid][2])
    {
                 playerIdle[playerid]++;
                 if(playerIdle[playerid] > 10)
     {
                     SendClientMessage(playerid,0xAA3333AA, "You have been idle for 10 minutes.");
      SendClientMessage(playerid,0xAA3333AA, "If you dont move in the next 30sec you will be auto kicked.");
                 }
                 if(playerIdle[playerid] > 11)
     {
         SendClientMessage(playerid,0xAA3333AA, "You have automaticly been kicked for being idle/afk for too long");
                     playerIdle[playerid] = 0;
      Kick(playerid);
     }
    }
             else
    {
                 playerIdle[playerid] = 0;
             }
             playerIdlePos[playerid][0] = x;
             playerIdlePos[playerid][1] = y;
             playerIdlePos[playerid][2] = z;
      }
     }
}