From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 28 Feb 2021 21:29:36 +0000 (+0000)
Subject: hidden: Do not occult pinned pieces
X-Git-Tag: otter-0.4.0~262
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=0c76f65ec77411cd50e8076fa0ef69f9f4687c12;p=otter.git

hidden: Do not occult pinned pieces

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/hidden.rs b/src/hidden.rs
index 4c575ee1..b1e68f7d 100644
--- a/src/hidden.rs
+++ b/src/hidden.rs
@@ -278,7 +278,11 @@ fn recalculate_occultation_general<
       )).transpose()?,
 
       goccults.occults.iter().find_map(|(occid, occ)| {
-        dbg!(if gpc.occult.active.is_some() { // xxx remove dbg!
+        dbg!(if gpc.pinned {
+          // Prevent pinned pieces being occulted.  What scrambling
+          // them etc. would mean is not entirely clear.
+          return None
+        } else if gpc.occult.active.is_some() { // xxx remove dbg!
           // prevent occulting pieces being occulted
           // (also prevents reflexive occultation)
           return None