Paper/patches/api/0074-API-to-get-a-BlockState-without-a-snapshot.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 6 Nov 2017 21:10:01 -0500
Subject: [PATCH] API to get a BlockState without a snapshot

This allows you to get a BlockState without creating a snapshot, operating
on the real tile entity.

This is useful for where performance is needed

diff --git a/src/main/java/org/bukkit/block/Block.java b/src/main/java/org/bukkit/block/Block.java
index ce1e1e6cc6740d568fbf859c7e2c014fab5a59cd..62ab55729e69bfac8eb4b40d877b945d95df27cd 100644
--- a/src/main/java/org/bukkit/block/Block.java
+++ b/src/main/java/org/bukkit/block/Block.java
@@ -271,6 +271,16 @@ public interface Block extends Metadatable {
     @NotNull
     BlockState getState();
 
+    // Paper start
+    /**
+     * @see #getState() optionally disables use of snapshot, to operate on real block data
+     * @param useSnapshot if this block is a TE, should we create a fully copy of the TileEntity
+     * @return BlockState with the current state of this block
+     */
+    @NotNull
+    BlockState getState(boolean useSnapshot);
+    // Paper end
+
     /**
      * Returns the biome that this block resides in
      *
diff --git a/src/main/java/org/bukkit/block/TileState.java b/src/main/java/org/bukkit/block/TileState.java
index 3b10fcc13893403b29f0260b8605144679e89b82..5c8517c5bcae10161952c104b6a4ff7c713bcdbd 100644
--- a/src/main/java/org/bukkit/block/TileState.java
+++ b/src/main/java/org/bukkit/block/TileState.java
@@ -36,4 +36,18 @@ public interface TileState extends BlockState, PersistentDataHolder {
     @NotNull
     @Override
     PersistentDataContainer getPersistentDataContainer();
+
+    // Paper start
+    /**
+     * Checks if this TileState is a snapshot or a live
+     * representation of the underlying tile entity.
+     * <p>
+     * NOTE: You may still have to call {@link BlockState#update()} on
+     * live representations to update any visuals on the block.
+     *
+     * @return true if this is a snapshot
+     * @see Block#getState(boolean)
+     */
+    boolean isSnapshot();
+    // Paper end
 }