PaperMC/patches/server/0425-Reduce-allocation-of-Vec3D-by-entity-tracker.patch
Nassim Jahnke 1358d1e914
Updated Upstream (CraftBukkit/Spigot) (#7580)
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:
881e06e5 PR-725: Add Item Unlimited Lifetime APIs

CraftBukkit Changes:
74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall
64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn
2d760831 Increase outdated build delay
9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel
fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent
59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta

Spigot Changes:
ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue
e19ddabd PR-1011: Add Item Unlimited Lifetime APIs
34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication
2022-03-13 08:47:54 +01:00

60 lines
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
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/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index f4b14d77d5c256852677bd9bc6dbda2bbe5367e3..38efde791c99dd22de71183676d0301a1d5a14e0 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1886,9 +1886,13 @@ 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()); // MC-155077, SPIGOT-5113
+ // Paper start - remove allocation of Vec3D here
+ //Vec3 vec3d = player.position().subtract(this.entity.position()); // MC-155077, SPIGOT-5113
+ 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(), (ChunkMap.this.viewDistance - 1) * 16);
- 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 5e3f489964489e0facc93a823a1cb84b4c8abce7..1a4350b40d15edba998e3dee5f16cde4e9f50759 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -143,8 +143,12 @@ public class ServerEntity {
++this.teleportDelay;
i = Mth.floor(this.entity.getYRot() * 256.0F / 360.0F);
j = Mth.floor(this.entity.getXRot() * 256.0F / 360.0F);
- Vec3 vec3d = this.entity.position().subtract(ClientboundMoveEntityPacket.packetToEntity(this.xp, this.yp, this.zp));
- boolean flag1 = vec3d.lengthSqr() >= 7.62939453125E-6D;
+ // Paper start - reduce allocation of Vec3D here
+ double vec3d_dx = this.entity.getX() - 2.44140625E-4D*(this.xp);
+ double vec3d_dy = this.entity.getY() - 2.44140625E-4D*(this.yp);
+ double vec3d_dz = this.entity.getZ() - 2.44140625E-4D*(this.zp);
+ 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;
@@ -161,9 +165,11 @@ public class ServerEntity {
// CraftBukkit end
if (this.tickCount > 0 || this.entity instanceof AbstractArrow) {
- long k = ClientboundMoveEntityPacket.entityToPacket(vec3d.x);
- long l = ClientboundMoveEntityPacket.entityToPacket(vec3d.y);
- long i1 = ClientboundMoveEntityPacket.entityToPacket(vec3d.z);
+ // Paper start - remove allocation of Vec3D here
+ long k = ClientboundMoveEntityPacket.entityToPacket(vec3d_dx);
+ long l = ClientboundMoveEntityPacket.entityToPacket(vec3d_dy);
+ long i1 = ClientboundMoveEntityPacket.entityToPacket(vec3d_dz);
+ // Paper end - remove allocation of Vec3D here
boolean flag4 = k < -32768L || k > 32767L || l < -32768L || l > 32767L || i1 < -32768L || i1 > 32767L;
if (!flag4 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.isOnGround()) {