global Obs = getObstacles();
function initialiseObstacles(){
	if(Obs[613]!=true){
		var tab = [];
		for(var key : var value in Obs){tab[value]=true;}
		Obs = tab;
		Obs[613]=true;
	}
}

debug(Obs);
initialiseObstacles();
debug(Obs);
debug(getOperations());