From 2a84a2e73f999046262653a8ca3b6b48c98e98d6 Mon Sep 17 00:00:00 2001
From: Pierre Jeanjean <rhiobet@gmail.com>
Date: Fri, 9 Dec 2022 14:16:16 +0100
Subject: [PATCH] Remove unnecessary conditions in day 9

---
 day09/common/bridge.go | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/day09/common/bridge.go b/day09/common/bridge.go
index 50c0f6e..b861063 100644
--- a/day09/common/bridge.go
+++ b/day09/common/bridge.go
@@ -72,18 +72,14 @@ func (grid *Grid) Update() {
     tail := &(grid.rope[i])
     if tail.x < head.x - 1 || tail.x > head.x + 1 ||
        tail.y < head.y - 1 || tail.y > head.y + 1 {
-      if tail.x == head.x {
-        tail.y = (tail.y + head.y) / 2
-      } else if tail.y == head.y {
-        tail.x = (tail.x + head.x) / 2
-      } else if tail.x == head.x - 1 || tail.x == head.x + 1 {
+      if tail.x == head.x - 1 || tail.x == head.x + 1 {
         tail.x = head.x
-        tail.y = (tail.y + head.y) / 2
-      } else if tail.y == head.y - 1 || tail.y == head.y + 1 {
-        tail.x = (tail.x + head.x) / 2
-        tail.y = head.y
       } else {
         tail.x = (tail.x + head.x) / 2
+      }
+      if tail.y == head.y - 1 || tail.y == head.y + 1 {
+        tail.y = head.y
+      } else {
         tail.y = (tail.y + head.y) / 2
       }
     }