From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Wed, 6 Jan 2021 02:19:29 -0600
Subject: [PATCH] Fix rotating UP/DOWN CW and CCW

Original code by PurpurMC, licensed under MIT
You can find the original code on https://github.com/PurpurMC/Purpur

diff --git a/src/main/java/net/minecraft/core/Direction.java b/src/main/java/net/minecraft/core/Direction.java
index ee725b972d3d5fb22538aaff9c72e47c6bad0cea..2217968eb5ecac0a2063cf1eae7d754d760e9f28 100644
--- a/src/main/java/net/minecraft/core/Direction.java
+++ b/src/main/java/net/minecraft/core/Direction.java
@@ -252,6 +252,12 @@ public enum Direction implements StringRepresentable {
             case EAST:
                 var10000 = SOUTH;
                 break;
+        // Purpur start
+        case UP:
+            return UP;
+        case DOWN:
+            return DOWN;
+        // Purpur end
             default:
                 throw new IllegalStateException("Unable to get Y-rotated facing of " + this);
         }
@@ -364,6 +370,12 @@ public enum Direction implements StringRepresentable {
             case EAST:
                 var10000 = NORTH;
                 break;
+        // Purpur start
+        case UP:
+            return UP;
+        case DOWN:
+            return DOWN;
+        // Purpur end
             default:
                 throw new IllegalStateException("Unable to get CCW facing of " + this);
         }