From 2339fe1c0749db4ad199ae8275fb2d41488e9a2f Mon Sep 17 00:00:00 2001
From: TheMode <themode@outlook.fr>
Date: Mon, 16 Aug 2021 20:07:57 +0200
Subject: [PATCH] Cache BlockImpl hashcode

---
 .../net/minestom/server/instance/block/BlockImpl.java    | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/minestom/server/instance/block/BlockImpl.java b/src/main/java/net/minestom/server/instance/block/BlockImpl.java
index d9be4d089..df311d2f4 100644
--- a/src/main/java/net/minestom/server/instance/block/BlockImpl.java
+++ b/src/main/java/net/minestom/server/instance/block/BlockImpl.java
@@ -69,6 +69,8 @@ final class BlockImpl implements Block {
     private final NBTCompound nbt;
     private final BlockHandler handler;
 
+    private int hashCode; // Cache
+
     BlockImpl(@NotNull Registry.BlockEntry registry,
               @NotNull Map<Map<String, String>, Block> propertyEntry,
               @NotNull Map<String, String> properties,
@@ -151,7 +153,12 @@ final class BlockImpl implements Block {
 
     @Override
     public int hashCode() {
-        return Objects.hash(stateId(), nbt, handler);
+        int result = hashCode;
+        if (result == 0) {
+            result = Objects.hash(stateId(), nbt, handler);
+            this.hashCode = result;
+        }
+        return result;
     }
 
     @Override