From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Thu, 27 May 2021 04:04:23 -0500
Subject: [PATCH] ShulkerBox allow oversized stacks

This fixes PaperMC/Paper#4748 where breaking a shulkerbox in survival mode
with oversized itemstacks would cause a "chunk ban". This fixes it by always
creating an itemstack using the TileEntity's NBT data (how it handles it for
creative players) instead of routing it through the LootableBuilder.

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 1351d83efdcab51d3898e1fb77d01b27975ce136..a6bf1fb6fff72b7d6460ce27ee7e7c45d4f4fee4 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -445,7 +445,7 @@ public class ServerPlayerGameMode {
                     block.destroy(this.level, pos, iblockdata);
                 }
 
-                if (this.isCreative()) {
+                if (this.isCreative() || (this.level.purpurConfig.shulkerBoxAllowOversizedStacks && block instanceof net.minecraft.world.level.block.ShulkerBoxBlock)) { // Purpur
                     // return true; // CraftBukkit
                 } else {
                     ItemStack itemstack = this.player.getMainHandItem();
diff --git a/src/main/java/net/minecraft/world/level/block/ShulkerBoxBlock.java b/src/main/java/net/minecraft/world/level/block/ShulkerBoxBlock.java
index 7f1230d915c98b6f30b13a06c2788bc2f7b7e912..9439119a70a411b1a7d9cd6a0090e4133ac744a3 100644
--- a/src/main/java/net/minecraft/world/level/block/ShulkerBoxBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ShulkerBoxBlock.java
@@ -123,7 +123,7 @@ public class ShulkerBoxBlock extends BaseEntityBlock {
         BlockEntity blockEntity = world.getBlockEntity(pos);
         if (blockEntity instanceof ShulkerBoxBlockEntity) {
             ShulkerBoxBlockEntity shulkerBoxBlockEntity = (ShulkerBoxBlockEntity)blockEntity;
-            if (!world.isClientSide && player.isCreative() && !shulkerBoxBlockEntity.isEmpty()) {
+            if (world.purpurConfig.shulkerBoxAllowOversizedStacks || (player.isCreative() && !shulkerBoxBlockEntity.isEmpty())) { // Purpur
                 ItemStack itemStack = getColoredItemStack(this.getColor());
                 blockEntity.saveToItem(itemStack);
                 if (shulkerBoxBlockEntity.hasCustomName()) {
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index f24c209ebde321504219661219bd9fe8d40acf52..20e55ccaf40f289b4bd028c4c6fc8b78748f7cf1 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -672,6 +672,11 @@ public class PurpurWorldConfig {
         }
     }
 
+    public boolean shulkerBoxAllowOversizedStacks = false;
+    private void shulkerBoxSettings() {
+        shulkerBoxAllowOversizedStacks = getBoolean("blocks.shulker_box.allow-oversized-stacks", shulkerBoxAllowOversizedStacks);
+    }
+
     public boolean signAllowColors = false;
     public boolean signRightClickEdit = false;
     private void signSettings() {