Paper/Spigot-Server-Patches/0480-Reduce-allocation-of-Vec3D-by-entity-tracker.patch
Shane Freeder e886d8118e
Updated Upstream ()
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
2021-02-06 00:00:18 +00:00

62 lines
4.4 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/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
index d40d41faae13ee17bbe1c7bd4b64126bcaee5643..3960a975e74ed81c45819fe5e0f01c6c18252982 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -127,8 +127,12 @@ public class EntityTrackerEntry {
++this.o;
i = MathHelper.d(this.tracker.yaw * 256.0F / 360.0F);
j = MathHelper.d(this.tracker.pitch * 256.0F / 360.0F);
- Vec3D vec3d = this.tracker.getPositionVector().d(PacketPlayOutEntity.a(this.xLoc, this.yLoc, this.zLoc));
- boolean flag1 = vec3d.g() >= 7.62939453125E-6D;
+ // Paper start - reduce allocation of Vec3D here
+ double vec3d_dx = this.tracker.locX() - 2.44140625E-4D*(this.xLoc);
+ double vec3d_dy = this.tracker.locY() - 2.44140625E-4D*(this.yLoc);
+ double vec3d_dz = this.tracker.locZ() - 2.44140625E-4D*(this.zLoc);
+ 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.tickCounter % 60 == 0;
boolean flag3 = Math.abs(i - this.yRot) >= 1 || Math.abs(j - this.xRot) >= 1;
@@ -145,9 +149,11 @@ public class EntityTrackerEntry {
// CraftBukkit end
if (this.tickCounter > 0 || this.tracker instanceof EntityArrow) {
- long k = PacketPlayOutEntity.a(vec3d.x);
- long l = PacketPlayOutEntity.a(vec3d.y);
- long i1 = PacketPlayOutEntity.a(vec3d.z);
+ // Paper start - remove allocation of Vec3D here
+ long k = PacketPlayOutEntity.a(vec3d_dx);
+ long l = PacketPlayOutEntity.a(vec3d_dy);
+ long i1 = PacketPlayOutEntity.a(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.o <= 400 && !this.q && this.r == this.tracker.isOnGround()) {
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index c507e71cef1da50e3709e358def6548cc69546e9..1685d6f9f497455636dbcef057db48f9d4039be4 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -2134,9 +2134,14 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
public void updatePlayer(EntityPlayer entityplayer) {
org.spigotmc.AsyncCatcher.catchOp("player tracker update"); // Spigot
if (entityplayer != this.tracker) {
- Vec3D vec3d = entityplayer.getPositionVector().d(this.tracker.getPositionVector()); // MC-155077, SPIGOT-5113
+ // Paper start - remove allocation of Vec3D here
+ //Vec3D vec3d = entityplayer.getPositionVector().d(this.tracker.getPositionVector()); // MC-155077, SPIGOT-5113
+ double vec3d_dx = entityplayer.locX() - this.tracker.locX();
+ double vec3d_dy = entityplayer.locY() - this.tracker.locY();
+ double vec3d_dz = entityplayer.locZ() - this.tracker.locZ();
+ // Paper end - remove allocation of Vec3D here
int i = Math.min(this.b(), (PlayerChunkMap.this.viewDistance - 1) * 16);
- boolean flag = vec3d.x >= (double) (-i) && vec3d.x <= (double) i && vec3d.z >= (double) (-i) && vec3d.z <= (double) i && this.tracker.a(entityplayer);
+ boolean flag = vec3d_dx >= (double) (-i) && vec3d_dx <= (double) i && vec3d_dz >= (double) (-i) && vec3d_dz <= (double) i && this.tracker.a(entityplayer); // Paper - remove allocation of Vec3D here
if (flag) {
boolean flag1 = this.tracker.attachedToPlayer;