testserver/patches/server/0412-Reduce-allocation-of-Vec3D-by-entity-tracker.patch
Nassim Jahnke 928bcc8d3a
Updated Upstream (Bukkit/CraftBukkit) (#8430)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
2022-10-02 09:56:36 +02:00

58 lines
3.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 27 Apr 2020 00:04:16 -0700
Subject: [PATCH] Reduce allocation of Vec3D by entity tracker
diff --git a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
index 3167f5c6be39757e3cc42cbb17ab0cf13a2fe470..3768a71491ef7836b9739bdaec7a077c523dbacd 100644
--- a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
+++ b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
@@ -5,7 +5,7 @@ import net.minecraft.world.phys.Vec3;
public class VecDeltaCodec {
private static final double TRUNCATION_STEPS = 4096.0D;
- private Vec3 base = Vec3.ZERO;
+ public Vec3 base = Vec3.ZERO; // Paper
private static long encode(double value) {
return Mth.lfloor(value * 4096.0D);
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 46bec088294c7500c9021103587a80e29de4b54b..8dce24ae70057115feff193a1307eb2437e16773 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1305,9 +1305,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
public void updatePlayer(ServerPlayer player) {
org.spigotmc.AsyncCatcher.catchOp("player tracker update"); // Spigot
if (player != this.entity) {
- Vec3 vec3d = player.position().subtract(this.entity.position());
+ // Paper start - remove allocation of Vec3D here
+ // Vec3 vec3d = player.position().subtract(this.entity.position());
+ double vec3d_dx = player.getX() - this.entity.getX();
+ double vec3d_dz = player.getZ() - this.entity.getZ();
+ // Paper end - remove allocation of Vec3D here
double d0 = (double) Math.min(this.getEffectiveRange(), io.papermc.paper.chunk.PlayerChunkLoader.getSendViewDistance(player) * 16); // Paper - per player view distance
- double d1 = vec3d.x * vec3d.x + vec3d.z * vec3d.z;
+ double d1 = vec3d_dx * vec3d_dx + vec3d_dz * vec3d_dz; // Paper
double d2 = d0 * d0;
boolean flag = d1 <= d2 && this.entity.broadcastToPlayer(player);
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index 7881176a900daa3306c691454f688c1f79b73475..ddc5b4849939a96b76611cfa1cd34c06c7acc0f8 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -147,7 +147,13 @@ public class ServerEntity {
i = Mth.floor(this.entity.getYRot() * 256.0F / 360.0F);
j = Mth.floor(this.entity.getXRot() * 256.0F / 360.0F);
Vec3 vec3d = this.entity.trackingPosition();
- boolean flag1 = this.positionCodec.delta(vec3d).lengthSqr() >= 7.62939453125E-6D;
+ // Paper start - reduce allocation of Vec3D here
+ Vec3 base = this.positionCodec.base;
+ double vec3d_dx = vec3d.x - base.x;
+ double vec3d_dy = vec3d.y - base.y;
+ double vec3d_dz = vec3d.z - base.z;
+ boolean flag1 = (vec3d_dx * vec3d_dx + vec3d_dy * vec3d_dy + vec3d_dz * vec3d_dz) >= 7.62939453125E-6D;
+ // Paper end - reduce allocation of Vec3D here
Packet<?> packet1 = null;
boolean flag2 = flag1 || this.tickCount % 60 == 0;
boolean flag3 = Math.abs(i - this.yRotp) >= 1 || Math.abs(j - this.xRotp) >= 1;