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33 lines
1.9 KiB
Diff
33 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: MrPowerGamerBR <git@mrpowergamerbr.com>
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Date: Wed, 15 Nov 2023 23:39:36 -0300
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Subject: [PATCH] SparklyPaper: Skip "distanceToSqr" call in
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"ServerEntity#sendChanges" if the delta movement hasn't changed
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Original project: https://github.com/SparklyPower/SparklyPaper
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The "distanceToSqr" call is a bit expensive, so avoiding it is pretty nice, around ~15% calls are skipped with this check
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We could also check if the x,y,z coordinates are equal, but for now, let's just keep the identity check, which also helps us since Minecraft's code does reuse the original delta movement Vec3 object
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diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
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index 403dd6de85d6af662d584d357fa5090aa78f1018..703b19ff3dac81d0ef522cd042fa55a598d615ad 100644
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--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
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+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
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@@ -219,6 +219,7 @@ public class ServerEntity {
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if ((this.trackDelta || this.entity.hasImpulse || this.entity instanceof LivingEntity && ((LivingEntity) this.entity).isFallFlying()) && this.tickCount > 0) {
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Vec3 vec3d1 = this.entity.getDeltaMovement();
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+ if (vec3d1 != this.lastSentMovement) { // SparklyPaper start - skip distanceToSqr call in ServerEntity#sendChanges if the delta movement hasn't changed
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double d0 = vec3d1.distanceToSqr(this.lastSentMovement);
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if (d0 > 1.0E-7D || d0 > 0.0D && vec3d1.lengthSqr() == 0.0D) {
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@@ -233,6 +234,7 @@ public class ServerEntity {
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this.broadcast.accept(new ClientboundSetEntityMotionPacket(this.entity.getId(), this.lastSentMovement));
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}
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}
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+ } // SparklyPaper end
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}
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if (packet1 != null) {
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