From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 4 Apr 2021 23:44:49 +0000 (+0100)
Subject: gamestate: Provide bbox_abs
X-Git-Tag: otter-0.5.0~195
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=33608b22f279c7f5c67a2350fdcb6ce22eda3fdb;p=otter.git

gamestate: Provide bbox_abs

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

diff --git a/src/gamestate.rs b/src/gamestate.rs
index 3f80b31e..a18c614f 100644
--- a/src/gamestate.rs
+++ b/src/gamestate.rs
@@ -214,6 +214,15 @@ pub trait PieceTrait: OutlineTrait + Send + Debug + 'static {
   fn occultation_notify_hook(&self, _piece: PieceId) -> UnpreparedUpdates {
     None
   }
+
+  #[throws(IE)]
+  fn abs_bbox(&self, p: &GPiece) -> Rect {
+    Rect { corners: self.bbox_approx()?.corners.iter().map(
+      |c| *c + p.pos
+    )
+           .collect::<Result<ArrayVec<_>,_>>()?
+           .into_inner().unwrap() }
+  }
 }
 
 #[typetag::serde]