From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 7 Apr 2021 17:34:20 +0000 (+0100)
Subject: rotateable: Provide PieceAngle::is_rotated
X-Git-Tag: otter-0.5.0~135
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=52e2a7d7d4d5d3a5aafe95c90aa001444dcb04d6;p=otter.git

rotateable: Provide PieceAngle::is_rotated

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

diff --git a/src/spec.rs b/src/spec.rs
index c547f785..7ddf8b14 100644
--- a/src/spec.rs
+++ b/src/spec.rs
@@ -282,6 +282,12 @@ pub mod piece_specs {
 
 // ---------- Implementation - angles ----------
 
+impl PieceAngle {
+  pub fn is_rotated(&self) -> bool { match self {
+    &PieceAngle::Compass(CompassAngle(a)) => a != 0,
+  } }
+}
+
 impl Default for PieceAngle {
   fn default() -> Self { PieceAngle::Compass(default()) }
 }