Expose server protocol version (#5416)

Spigot-API-Patches/Expose-protocol-version.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Fri, 26 Mar 2021 11:23:27 +0100
+Subject: [PATCH] Expose protocol version
+
+
+diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/UnsafeValues.java
++++ b/src/main/java/org/bukkit/UnsafeValues.java
+@@ -0,0 +0,0 @@ public interface UnsafeValues {
+      * @return the itemstack rarity
+      */
+     public io.papermc.paper.inventory.ItemRarity getItemStackRarity(ItemStack itemStack);
++
++    /**
++     * Returns the server's protocol version.
++     *
++     * @return the server's protocol version
++     */
++    int getProtocolVersion();
+     // Paper end
+ }

Spigot-Server-Patches/Expose-protocol-version.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Fri, 26 Mar 2021 11:23:17 +0100
+Subject: [PATCH] Expose protocol version
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -0,0 +0,0 @@ public final class CraftMagicNumbers implements UnsafeValues {
+         return io.papermc.paper.inventory.ItemRarity.values()[getItem(itemStack.getType()).getItemStackRarity(CraftItemStack.asNMSCopy(itemStack)).ordinal()];
+     }
+ 
++    @Override
++    public int getProtocolVersion() {
++        return net.minecraft.SharedConstants.getGameVersion().getProtocolVersion();
++    }
++
+     // Paper end
+ 
+     /**