What about Barges?

[Lord Chaos]

The following code checks if the barge is carrying a mineable item.
If it is carrying a mineable item, it will not be allowed to make dock at a profitable destination.
If it is not carrying a mineable item, it is allowed to dock.

```
if (barge.carryingMineableItem()) {
doNotMakeDock();
} else {
makeDock();
}
```

This code assumes that there is a method named `carryingMineableItem()` that returns true if the barge is carrying a mineable item and false otherwise.
The `doNotMakeDock()` and `makeDock()` methods are used to indicate whether the barge should or should not make dock.

I know Freelancer has diferent coding but the principle should be the same
Just a thought