papermc/Spigot-Server-Patches/0493-Reduce-allocation-of-Vec3D-by-entity-tracker.patch
Prof-Bloodstone 42433c2626
Updated Upstream (Bukkit/CraftBukkit) (#3980)
Upstream has released updates that appears 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:
09f10fd9 SPIGOT-5950: Add PrepareSmithingEvent event

CraftBukkit Changes:
7c03d257 SPIGOT-6011: End Gateways do not work on Non-Main End Worlds
d492e363 SPIGOT-6015: Small Armor Stand doesn't drop items
5db13eea SPIGOT-5950: Add PrepareSmithingEvent event
2020-07-22 19:35:44 -04:00

61 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 0c46297e6ff229538d77b2f481e4ab13ea14c48e..f75c09d44a19f84588f21a55ea8f0dd8ccb539b9 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 e4527f3f899ac194d629f39bfdb650667d2dab80..3c758c74f24443031d905dad4c0d7460762b89fb 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -2131,9 +2131,14 @@ 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;