var TargetSystem={
     targets:[],
     enemyIndex:-1,
    set Update(array){

        function EnemyPosition(element,index,array)
            {
        this.enemyIndex=1 // Does change the TargetSystem enemyIndex
        /* code used to show problem*/
                var enemyValue = Math.max(...array);
                 if(enemyValue === element)
                    return index;
                 printErr(this.enemyIndex);

            }
        if(this.targets.length <= 0 )
        {
            this.targets=array;
            var numb = Math.max(...this.targets);
            this.targets.findIndex(EnemyPosition);
            return;
        }
        if(this.targets.length >= 7 )
        {
            this.targets=array;
            var numb = Math.max(...this.targets);
            this.targets.findIndex(EnemyPosition);
        }




    },

    TargetDestroy:function(vertical){
           printErr(this.enemyIndex,vertical);// Prints -1
           vertical===this.enemyIndex ? print('FIRE'):print('HOLD');
    }
};