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30 lines
1.8 KiB
Diff
30 lines
1.8 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] Skip "distanceToSqr" call in "ServerEntity#sendChanges" if
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the delta movement hasn't changed
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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 35674f92a67f93382103c2766df4b678ba5c862f..aedf24ba0d64de855a59869052cbc2704e7dc134 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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@@ -202,12 +202,14 @@ 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.ap) { // SparklyPaper start - skip distanceToSqr call in ServerEntity#sendChanges if the delta movement hasn't changed
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double d0 = vec3d1.distanceToSqr(this.ap);
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if (d0 > 1.0E-7D || d0 > 0.0D && vec3d1.lengthSqr() == 0.0D) {
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this.ap = vec3d1;
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this.broadcast.accept(new ClientboundSetEntityMotionPacket(this.entity.getId(), this.ap));
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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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