From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Taiyou06 <kaandindar21@gmail.com>
Date: Thu, 8 May 2025 10:08:54 +0200
Subject: [PATCH] Reduce PlayerChunk Updates


diff --git a/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 983f2b1c12d2e64c099ba7c717b9d2bc7f1770ce..6dc940aa6ee513e5c87b6058ccaa90bba91bade9 100644
--- a/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1457,6 +1457,8 @@ public class ServerGamePacketListenerImpl
                     this.resetPosition();
                 }
 
+                final net.minecraft.world.level.ChunkPos playerStartChunkPosition = this.player.chunkPosition(); // Leaf - Reduce PlayerChunk Updates
+
                 if (this.player.hasClientLoaded()) {
                     float f = Mth.wrapDegrees(packet.getYRot(this.player.getYRot())); final float toYaw = f; // Paper - OBFHELPER
                     float f1 = Mth.wrapDegrees(packet.getXRot(this.player.getXRot())); final float toPitch = f1; // Paper - OBFHELPER
@@ -1734,7 +1736,7 @@ public class ServerGamePacketListenerImpl
                                         && !isFallFlying
                                         && !isAutoSpinAttack
                                         && this.noBlocksAround(this.player);
-                                    this.player.level().getChunkSource().move(this.player);
+                                    if (!org.dreeam.leaf.config.modules.opt.ReduceChunkSourceUpdates.enabled || this.player.level() != serverLevel || this.player.chunkPosition() == playerStartChunkPosition) this.player.level().getChunkSource().move(this.player); // Leaf - Reduce PlayerChunk Updates
                                     Vec3 vec3 = new Vec3(this.player.getX() - x, this.player.getY() - y, this.player.getZ() - z);
                                     this.player.setOnGroundWithMovement(packet.isOnGround(), packet.horizontalCollision(), vec3);
                                     this.player.doCheckFallDamage(vec3.x, vec3.y, vec3.z, packet.isOnGround());