From 667dc2c80986434ae20cef25d18a0a2b66ceaf9c Mon Sep 17 00:00:00 2001
From: Jay Kickliter <jay@kickliter.com>
Date: Sun, 7 Jan 2024 01:12:27 +0000
Subject: [PATCH] Handle voids

---
 hexit/src/elevation.rs | 4 ++++
 hexit/src/tesselate.rs | 1 +
 2 files changed, 5 insertions(+)

diff --git a/hexit/src/elevation.rs b/hexit/src/elevation.rs
index 71756f3..d38b3d4 100644
--- a/hexit/src/elevation.rs
+++ b/hexit/src/elevation.rs
@@ -101,6 +101,10 @@ impl Compactor<Elevation> for CloseEnoughCompactor {
             let mut n_max = i16::MIN;
             let mut n_n = 0;
             for Elevation { min, sum, max, n } in [v0, v1, v2, v3, v4, v5, v6] {
+                // HACK: Ignore voids that snuck through.
+                if [min, max].contains(&&i16::MIN) {
+                    continue;
+                }
                 n_min = i16::min(n_min, *min);
                 n_sum += sum;
                 n_max = i16::max(n_max, *max);
diff --git a/hexit/src/tesselate.rs b/hexit/src/tesselate.rs
index 71bbe7b..22a71f3 100644
--- a/hexit/src/tesselate.rs
+++ b/hexit/src/tesselate.rs
@@ -84,6 +84,7 @@ impl Tesselate {
     fn tesselate_tile(&self, tile: &Tile, progress_bar: &ProgressBar) -> Result<HexTreeMap<i16>> {
         let mut hextree: HexTreeMap<i16> = HexTreeMap::new();
         for sample in tile.iter() {
+            assert_ne!(sample.elevation(), i16::MIN);
             let (elev, hexes) = Self::tesselate_sample(&sample, self.resolution)?;
             for hex in hexes {
                 hextree.insert(Cell::try_from(hex)?, elev);