I'm trying to write a `for each` for my towers.

var towers = Game.rooms[roomName].find(FIND_MY_STRUCTURES, {filter: {structureType: STRUCTURE_TOWER}});
console.log(towers.length); // Gives me 2, correct
for (var tower in towers) {

    console.log(tower); // Gives me 0 then 1
    console.log('Pos: ' + tower.pos); // Gives me `Pos: undefined`

}

I wanted to put this in the for loop:

var closestDamagedStructure = tower.pos.findClosestByRange(FIND_STRUCTURES, {
filter: (structure) => structure.hits < structure.hitsMax
});

But since tower.pos is undefined, that fails.