mirror of https://github.com/PaperMC/Paper.git
60 lines
3.9 KiB
Diff
60 lines
3.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 27 Apr 2020 00:04:16 -0700
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Subject: [PATCH] Reduce allocation of Vec3D by entity tracker
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diff --git a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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index 3c4ac79c094dc2fff7de94150a34b7bf814ac0de..38b56923a642afc1cb411480ba03cc784ed7cd24 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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@@ -5,7 +5,7 @@ import org.jetbrains.annotations.VisibleForTesting;
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public class VecDeltaCodec {
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private static final double TRUNCATION_STEPS = 4096.0D;
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- private Vec3 base = Vec3.ZERO;
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+ public Vec3 base = Vec3.ZERO; // Paper
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@VisibleForTesting
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static long encode(double value) {
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 22558aa7f83191519ca21357925309119d0718c7..d7c58ac9f9f4727cf13c0fd3bc370b10a2aba38f 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1735,10 +1735,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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public void updatePlayer(ServerPlayer player) {
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org.spigotmc.AsyncCatcher.catchOp("player tracker update"); // Spigot
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if (player != this.entity) {
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- Vec3 vec3d = player.position().subtract(this.entity.position());
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+ // Paper start - remove allocation of Vec3D here
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+ // Vec3 vec3d = player.position().subtract(this.entity.position());
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+ double vec3d_dx = player.getX() - this.entity.getX();
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+ double vec3d_dz = player.getZ() - this.entity.getZ();
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+ // Paper end - remove allocation of Vec3D here
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int i = ChunkMap.this.getPlayerViewDistance(player);
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double d0 = (double) Math.min(this.getEffectiveRange(), i * 16);
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- double d1 = vec3d.x * vec3d.x + vec3d.z * vec3d.z;
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+ double d1 = vec3d_dx * vec3d_dx + vec3d_dz * vec3d_dz; // Paper
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double d2 = d0 * d0;
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boolean flag = d1 <= d2 && this.entity.broadcastToPlayer(player) && ChunkMap.this.isChunkTracked(player, this.entity.chunkPosition().x, this.entity.chunkPosition().z);
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// Paper start - Configurable entity tracking range by Y
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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 c2a4fde17673a2bc3133aa0c68608c3da75d5cc5..9154af6523f4eaab1636e0bad30f743244e47471 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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@@ -164,7 +164,13 @@ public class ServerEntity {
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i = Mth.floor(this.entity.getYRot() * 256.0F / 360.0F);
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j = Mth.floor(this.entity.getXRot() * 256.0F / 360.0F);
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Vec3 vec3d = this.entity.trackingPosition();
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- boolean flag1 = this.positionCodec.delta(vec3d).lengthSqr() >= 7.62939453125E-6D;
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+ // Paper start - reduce allocation of Vec3D here
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+ Vec3 base = this.positionCodec.base;
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+ double vec3d_dx = vec3d.x - base.x;
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+ double vec3d_dy = vec3d.y - base.y;
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+ double vec3d_dz = vec3d.z - base.z;
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+ boolean flag1 = (vec3d_dx * vec3d_dx + vec3d_dy * vec3d_dy + vec3d_dz * vec3d_dz) >= 7.62939453125E-6D;
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+ // Paper end - reduce allocation of Vec3D here
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Packet<?> packet1 = null;
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boolean flag2 = flag1 || this.tickCount % 60 == 0;
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boolean flag3 = Math.abs(i - this.yRotp) >= 1 || Math.abs(j - this.xRotp) >= 1;
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