public OnGameModeInit()
{
  SetTimer("UpdatePos",true,2000);
  return 1;
}


public UpdatePos()
{
  for(new h=0; h < sizeof(HouseInfo); h++)
  {
    for(new i=0; i < MAX_PLAYERS; i++)
    {
      if(IsPlayerInRangeOfPoint(playerid,2,... || êîíåêò...
      {
        CreateCheckpoint...
      }
    }
  }
  return 1;
}