From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mariell Hoversholm <proximyst@proximyst.com>
Date: Tue, 29 Dec 2020 15:03:03 +0100
Subject: [PATCH] Add sendOpLevel API


diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index f4e74b0bc3d192d7f7c2bc1dbfef92a28863a57c..b7f3be857d9ffb166e99f20753dbc671bb3b5451 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -1123,6 +1123,11 @@ public abstract class PlayerList {
     }
 
     private void sendPlayerPermissionLevel(ServerPlayer player, int permissionLevel) {
+        // Paper start - add recalculatePermissions parameter
+        this.sendPlayerPermissionLevel(player, permissionLevel, true);
+    }
+    public void sendPlayerPermissionLevel(ServerPlayer player, int permissionLevel, boolean recalculatePermissions) {
+        // Paper end
         if (player.connection != null) {
             byte b0;
 
@@ -1137,8 +1142,10 @@ public abstract class PlayerList {
             player.connection.send(new ClientboundEntityEventPacket(player, b0));
         }
 
+        if (recalculatePermissions) { // Paper
         player.getBukkitEntity().recalculatePermissions(); // CraftBukkit
         this.server.getCommands().sendCommands(player);
+        } // Paper
     }
 
     // Paper start
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 457f68048d9dab306555398480ba597289f75046..bed138215387343c25d481ae3643499d5551d1e3 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -579,6 +579,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
             ? (org.bukkit.entity.Firework) entity.getBukkitEntity()
             : null;
     }
+
+    @Override
+    public void sendOpLevel(byte level) {
+        Preconditions.checkArgument(level >= 0 && level <= 4, "Level must be within [0, 4]");
+
+        this.getHandle().getServer().getPlayerList().sendPlayerPermissionLevel(this.getHandle(), level, false);
+    }
     // Paper end
 
     @Override