zscript-doc/api/level/SectorTagIterator.md

# SectorTagIterator

Iterates over sector indices with a specified tag.

```
class SectorTagIterator : Object
{
	static SectorTagIterator Create(int tag, Line defline = null);

	int Next();
	int NextCompat(bool compat, int secnum);
}
```

### `Create`

Creates a new iterator over sectors with tag `tag`. TODO: I can't find where
`defline` is actually used. It is a mystery.

### `Next`

Returns the index of the current sector and advances the iterator. Returns `-1`
when the list is exhausted.

### `NextCompat`

If `compat` is `false`, acts exactly as `Next`. Otherwise, returns the index of
the current sector and advances the iterator in a manner compatible with Doom's
stair builders.

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