Purpur/patches/server/0005-Purpur-client-support.patch at 48af1248d83de59731fc39e024e9b513e0c854b0 · PurpurMC/Purpur · GitHub

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Fri, 30 Jul 2021 14:31:25 -0500
Subject: [PATCH] Purpur client support


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 961d25bbf868438bf5e5257bad745c8208a01171..90845d1d930c43f9363c75629517322726a264a8 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -261,6 +261,7 @@ public class ServerPlayer extends Player {
     public Integer clientViewDistance;
     // CraftBukkit end
     public PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper
+    public boolean purpurClient = false; // Purpur

     public boolean isRealPlayer; // Paper
     public double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 4e615e5d5b8d79f6eaac2136be03961415fd093e..42978e1ea82b4d6a740150893518c4f6bd1562eb 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3647,6 +3647,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
     private static final ResourceLocation CUSTOM_UNREGISTER = new ResourceLocation("unregister");

     private static final ResourceLocation MINECRAFT_BRAND = new ResourceLocation("brand"); // Paper - Brand support
+    private static final ResourceLocation PURPUR_CLIENT = new ResourceLocation("purpur", "client"); // Purpur

     @Override
     public void handleCustomPayload(ServerboundCustomPayloadPacket packet) {
@@ -3671,6 +3672,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
                 ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t unregister custom payload", ex);
                 this.disconnect("Invalid payload UNREGISTER!", org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_PAYLOAD); // Paper - kick event cause
             }
+        // Purpur start
+        } else if (packet.identifier.equals(PURPUR_CLIENT)) {
+            try {
+                player.purpurClient = true;
+            } catch (Exception ignore) {
+            }
+        // Purpur end
         } else {
             try {
                 byte[] data = new byte[packet.data.readableBytes()];
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index b1136b9c39b16cbb9dfe460f88000f74ccd4f571..622ec4316df5bae2466f28173c121634f73767d1 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2944,4 +2944,11 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         return this.spigot;
     }
     // Spigot end
+
+    // Purpur start
+    @Override
+    public boolean usesPurpurClient() {
+        return getHandle().purpurClient;
+    }
+    // Purpur end
 }