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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 8721a93e184354727b439c794ce0aea5321b6675..573c380e123473e35c0b72c44b32c8d6ba8e61c6 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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@@ -231,6 +231,7 @@ 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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@@ -245,6 +246,7 @@ 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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