Add unbreakable carpet highlighter

[Emirlol]

Renders a colored box around nearby carpets within mithril ore veins in dwarven mines.

It can be toggled on and off, and the color is configurable.

Uses up about 0.30% of tick time for scanning & rendering while in dwarven mines. Didn't test outside but it should be much less, probably not even worth mentioning as it's just a boolean if check on each tick.

[olim88]

seems like good code to me.

[kevinthegreat1]

It seems that this pr just continually adds to the list of carpets without checking if it was already in the list? The list should be changed to a set, (AVLTreeSet should be better in this case as this is look-up intensive.) Also set contains should be checked before calling checkForCarpet.

[Emirlol]

It seems that this pr just continually adds to the list of carpets without checking if it was already in the list? The list should be changed to a set, (AVLTreeSet should be better in this case as this is look-up intensive.) Also set contains should be checked before calling checkForCarpet.

CARPET_LOCATIONS is an ObjectArraySet, so it already does the contains check within its add method.
As for using an AVLTreeSet, sure, that's easy to change.

[kevinthegreat1]

CARPET_LOCATIONS is an ObjectArraySet, so it already does the contains check within its add method. As for using an AVLTreeSet, sure, that's easy to change.

Oh, sorry. I read it as ObjectArrayList for some reason. Then my comment about AVLTreeSet is not needed.

[Emirlol]

Oh, sorry. I read it as ObjectArrayList for some reason. Then my comment about AVLTreeSet is not needed.

Oops too late xd

[kevinthegreat1]

LGTM.

[kevinthegreat1]

Oops too late xd

On the bright side, we can handle millions of carpets now...

[Emirlol]

I'm not sure how well an AVLTreeSet will handle iteration over millions of carpets per frame, though.

And I just noticed that light gray carpet is used for sneaky lighting in various places outside of tungsten ore veins. Idk what we should do for these false positives. It probably doesn't matter since they are indeed unbreakable carpets, but still.