fix: Folia support for a wide range of plugins

README.md

@@ -25,6 +25,18 @@ In summary, a plugin must be careful of:
 - One thread reading data while it is being updated by another thread.
 - Code is to be executed on the chunk's thread, not simply the main thread.
 
+If your plugin already has support for Folia there is a 99% chance it will work with ShreddedPaper without any changes
+If you have a sanity check similar to the following
+```java
+        try {
+            Class.forName("io.papermc.paper.threadedregions.RegionizedServer");
+            return true;
+        } catch (ClassNotFoundException e) {
+            return false;
+        }
+```
+You should either remove it (because its really not needed) OR add a check for the class `io.multipaper.shreddedpaper.ShreddedPaper`
+
 [See here for a more detailed tutorial](DEVELOPING_A_MULTITHREAD_PLUGIN.md)
 
 ### Using the ShreddedPaper API as a dependency

patches/api/0002-Add-RegionizedServerInitEvent-for-Folia-support.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: ProdPreva1l <prod.preva1l@gmail.com>
+Date: Wed, 5 Jun 2024 20:44:50 +1000
+Subject: [PATCH] Add RegionizedServerInitEvent for Folia support
+
+
+diff --git a/src/main/java/io/papermc/paper/threadedregions/RegionizedServerInitEvent.java b/src/main/java/io/papermc/paper/threadedregions/RegionizedServerInitEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..d991df9523676ab7ba90f45ecae3ea9dac5b55d6
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/threadedregions/RegionizedServerInitEvent.java
+@@ -0,0 +1,24 @@
++package io.papermc.paper.threadedregions;
++
++import org.bukkit.event.Event;
++import org.bukkit.event.HandlerList;
++import org.jetbrains.annotations.ApiStatus;
++import org.jetbrains.annotations.NotNull;
++
++public class RegionizedServerInitEvent extends Event {
++    private static final HandlerList HANDLER_LIST = new HandlerList();
++
++    @ApiStatus.Internal
++    public RegionizedServerInitEvent() {
++        super();
++    }
++
++    @Override
++    public @NotNull HandlerList getHandlers() {
++        return HANDLER_LIST;
++    }
++
++    public static @NotNull HandlerList getHandlerList() {
++        return HANDLER_LIST;
++    }
++}
+\ No newline at end of file

patches/server/0032-Fix-compat-for-Folia-plugins-that-check-for-Folia.patch

@@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: ProdPreva1l <prod.preva1l@gmail.com>
+Date: Wed, 5 Jun 2024 20:27:53 +1000
+Subject: [PATCH] Fix compat for Folia plugins that check for Folia
+
+
+diff --git a/src/main/java/io/papermc/paper/threadedregions/RegionizedServer.java b/src/main/java/io/papermc/paper/threadedregions/RegionizedServer.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..69db3090c24ab058549cdd8e78ca1beb7be5e7a8
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/threadedregions/RegionizedServer.java
+@@ -0,0 +1,7 @@
++package io.papermc.paper.threadedregions;
++
++@SuppressWarnings("unused")
++public class RegionizedServer {
++    /* We have nothing here because this is just to fix compat
++     for Folia plugins that have hard coded checks for Folia */
++}
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index b6d5954ae9fbbcc52d9bd0bfb7b46d78f907b436..ee5eb2967ffd0b5aac88cffc7921b5a8fbade64f 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -16,6 +16,7 @@ import com.mojang.datafixers.DataFixer;
+ import com.mojang.logging.LogUtils;
+ import io.multipaper.shreddedpaper.ShreddedPaper;
+ import io.multipaper.shreddedpaper.threading.ShreddedPaperPlayerTicker;
++import io.papermc.paper.threadedregions.RegionizedServerInitEvent;
+ import io.papermc.paper.util.TickThread;
+ import it.unimi.dsi.fastutil.longs.LongIterator;
+ import it.unimi.dsi.fastutil.objects.ObjectArrayList;
+@@ -1160,6 +1161,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.statusIcon = (ServerStatus.Favicon) this.loadStatusIcon().orElse(null); // CraftBukkit - decompile error
+             this.status = this.buildServerStatus();
+
++            new RegionizedServerInitEvent().callEvent(); // ShreddedPaper - Folia plugin support
++
+             // Spigot start
+             // Paper start - move done tracking
+             LOGGER.info("Running delayed init tasks");