We're going on an Adventure! (#4842)

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: zml <zml@stellardrift.ca>
Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>

Spigot-API-Patches/0218-Add-moon-phase-API.patch

@@ -1,65 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: BillyGalbreath <Blake.Galbreath@GMail.com>
-Date: Sun, 23 Aug 2020 16:32:03 +0200
-Subject: [PATCH] Add moon phase API
-
-
-diff --git a/src/main/java/io/papermc/paper/world/MoonPhase.java b/src/main/java/io/papermc/paper/world/MoonPhase.java
-new file mode 100644
-index 0000000000000000000000000000000000000000..df05153397b42930cd53d37b30824c7e5f008f7e
---- /dev/null
-+++ b/src/main/java/io/papermc/paper/world/MoonPhase.java
-@@ -0,0 +1,36 @@
-+package io.papermc.paper.world;
-+
-+import org.jetbrains.annotations.NotNull;
-+
-+import java.util.HashMap;
-+import java.util.Map;
-+
-+public enum MoonPhase {
-+    FULL_MOON(0L),
-+    WANING_GIBBOUS(1L),
-+    LAST_QUARTER(2L),
-+    WANING_CRESCENT(3L),
-+    NEW_MOON(4L),
-+    WAXING_CRESCENT(5L),
-+    FIRST_QUARTER(6L),
-+    WAXING_GIBBOUS(7L);
-+
-+    private final long day;
-+
-+    MoonPhase(long day) {
-+        this.day = day;
-+    }
-+
-+    private static final Map<Long, MoonPhase> BY_DAY = new HashMap<>();
-+
-+    static {
-+        for (MoonPhase phase : values()) {
-+            BY_DAY.put(phase.day, phase);
-+        }
-+    }
-+
-+    @NotNull
-+    public static MoonPhase getPhase(long day) {
-+        return BY_DAY.get(day % 8L);
-+    }
-+}
-diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
-index 9b12fbec82017d8cbb21b5a8c3d563f1974dc1c5..042baabf18f86a9c915db7e9d515f26f840a12d7 100644
---- a/src/main/java/org/bukkit/World.java
-+++ b/src/main/java/org/bukkit/World.java
-@@ -70,6 +70,12 @@ public interface World extends PluginMessageRecipient, Metadatable {
-      * @return The amount of Players in this world
-      */
-     int getPlayerCount();
-+
-+    /**
-+     * @return the current moon phase at the current time in the world
-+     */
-+    @NotNull
-+    io.papermc.paper.world.MoonPhase getMoonPhase();
-     // Paper end
- 
-     /**