From f01d3bff36adf538360e58b018fcf763592a2fa5 Mon Sep 17 00:00:00 2001
From: Gwilym Kuiper <gw@ilym.me>
Date: Mon, 7 Mar 2022 22:56:05 +0000
Subject: [PATCH] Use saturating_sub rather than regular subtraction

---
 examples/the-purple-night/src/main.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/examples/the-purple-night/src/main.rs b/examples/the-purple-night/src/main.rs
index 59640239..047eb541 100644
--- a/examples/the-purple-night/src/main.rs
+++ b/examples/the-purple-night/src/main.rs
@@ -393,10 +393,10 @@ impl SwordState {
     }
     fn attack_frame(self, timer: u16) -> u16 {
         match self {
-            SwordState::LongSword => (self.attack_duration() - timer) / 8,
-            SwordState::ShortSword => (self.attack_duration() - timer) / 8,
-            SwordState::Dagger => (self.attack_duration() - timer) / 8,
-            SwordState::Swordless => (self.attack_duration() - timer) / 8,
+            SwordState::LongSword => (self.attack_duration().saturating_sub(timer)) / 8,
+            SwordState::ShortSword => (self.attack_duration().saturating_sub(timer)) / 8,
+            SwordState::Dagger => (self.attack_duration().saturating_sub(timer)) / 8,
+            SwordState::Swordless => (self.attack_duration().saturating_sub(timer)) / 8,
         }
     }
     fn jump_attack_tag(self) -> &'static Tag {