From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jacob <jacob@stellardev.org>
Date: Wed, 19 Jan 2022 16:55:38 -0700
Subject: [PATCH] Fast speed check

Original code by NFT-Worlds, licensed under GNU General Public License v3.0
You can find the original code on https://github.com/NFT-Worlds/Server

etil2jz's note:
NFT-Worlds is related to Stellar devs, known for countless paid forks mostly taking open source patches,
doing questionable/buggy ones, and claiming breathtaking performance improvements. Never ever pay for
any of those Spigot forks!

diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 72e39b9c7344e89bb9919b882002b4ebbd2d464d..7947271bbdc58011088e626cd1b3f9625d9bcd62 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -1132,7 +1132,16 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
                 }
 
                 this.tryCheckInsideBlocks();
-                float f2 = this.getBlockSpeedFactor();
+                float f2;
+                if (wtf.etil.mirai.MiraiConfig.fastSpeedCheck) {
+                    if (this.getDeltaMovement().x == 0 && this.getDeltaMovement().z == 0) {
+                        f2 = 1;
+                    } else {
+                        f2 = this.getBlockSpeedFactor();
+                    }
+                } else {
+                    f2 = this.getBlockSpeedFactor();
+                }
 
                 this.setDeltaMovement(this.getDeltaMovement().multiply((double) f2, 1.0D, (double) f2));
                 // Paper start - remove expensive streams from here
diff --git a/src/main/java/wtf/etil/mirai/MiraiConfig.java b/src/main/java/wtf/etil/mirai/MiraiConfig.java
index 86cc31add10259a248b6044d1bcfb0a9a6bac9c6..abbbcc568ead90575aef85317e973275b6b16d46 100644
--- a/src/main/java/wtf/etil/mirai/MiraiConfig.java
+++ b/src/main/java/wtf/etil/mirai/MiraiConfig.java
@@ -256,4 +256,9 @@ public class MiraiConfig {
         criterionTriggerLocation = getBoolean("criterion-trigger.location", criterionTriggerLocation);
     }
 
+    public static boolean fastSpeedCheck = true;
+    private static void speedCheck() {
+        fastSpeedCheck = getBoolean("fast-speed-check", fastSpeedCheck);
+    }
+
 }
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