PaperMC/Spigot-Server-Patches/0681-do-not-create-unnecessary-copies-of-passenger-list.patch
Josh Roy b31089a929
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#5325)
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:
d264e972 #591: Add option for a consumer before spawning an item
1c537fce #590: Add spawn and transform reasons for piglin zombification.

CraftBukkit Changes:
ee5006d1 #810: Add option for a consumer before spawning an item
f6a39d3c #809: Add spawn and transform reasons for piglin zombification.
0c24068a Organise imports

Spigot Changes:
bff52619 Organise imports
2021-03-08 15:12:31 -08:00

239 lines
12 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: lukas81298 <lukas81298@gmail.com>
Date: Sun, 13 Dec 2020 13:42:55 +0100
Subject: [PATCH] do not create unnecessary copies of passenger list
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index e87e1b04e13593f1efa4d1c59cb9e433f2b3c694..534238688be75c53058dcfeabcdf86d9c0504089 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2138,7 +2138,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
protected boolean q(Entity entity) {
- return this.getPassengers().size() < 1;
+ return this.passengers.size() < 1; // Paper - do not copy list
}
public final float getCollisionBorderSize() { return bg(); } // Paper - OBFHELPER
@@ -2234,7 +2234,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
public boolean isVehicle() {
- return !this.getPassengers().isEmpty();
+ return !this.passengers.isEmpty(); // Paper - do not copy list
}
public boolean bt() {
@@ -3046,7 +3046,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
public boolean w(Entity entity) {
- Iterator iterator = this.getPassengers().iterator();
+ Iterator iterator = this.passengers.iterator(); // Paper - do not copy list
Entity entity1;
@@ -3062,7 +3062,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
public boolean a(Class<? extends Entity> oclass) {
- Iterator iterator = this.getPassengers().iterator();
+ Iterator iterator = this.passengers.iterator(); // Paper - do not copy list
Entity entity;
@@ -3079,7 +3079,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
public Collection<Entity> getAllPassengers() {
Set<Entity> set = Sets.newHashSet();
- Iterator iterator = this.getPassengers().iterator();
+ Iterator iterator = this.passengers.iterator(); // Paper - do not copy list
while (iterator.hasNext()) {
Entity entity = (Entity) iterator.next();
@@ -3105,7 +3105,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
private void a(boolean flag, Set<Entity> set) {
Entity entity;
- for (Iterator iterator = this.getPassengers().iterator(); iterator.hasNext(); entity.a(flag, set)) {
+ for (Iterator iterator = this.passengers.iterator(); iterator.hasNext(); entity.a(flag, set)) { // Paper - do not copy list
entity = (Entity) iterator.next();
if (!flag || EntityPlayer.class.isAssignableFrom(entity.getClass())) {
set.add(entity);
diff --git a/src/main/java/net/minecraft/server/EntityBoat.java b/src/main/java/net/minecraft/server/EntityBoat.java
index baa4a61114e7460c74027e1519332f0dd9582647..15ce9f90306d062f36d1651d7426813e897523bf 100644
--- a/src/main/java/net/minecraft/server/EntityBoat.java
+++ b/src/main/java/net/minecraft/server/EntityBoat.java
@@ -272,7 +272,7 @@ public class EntityBoat extends Entity {
super.tick();
this.r();
if (this.cs()) {
- if (this.getPassengers().isEmpty() || !(this.getPassengers().get(0) instanceof EntityHuman)) {
+ if (this.passengers.isEmpty() || !(this.passengers.get(0) instanceof EntityHuman)) { // Paper - do not copy list
this.a(false, false);
}
@@ -335,7 +335,7 @@ public class EntityBoat extends Entity {
Entity entity = (Entity) list.get(j);
if (!entity.w(this)) {
- if (flag && this.getPassengers().size() < 2 && !entity.isPassenger() && entity.getWidth() < this.getWidth() && entity instanceof EntityLiving && !(entity instanceof EntityWaterAnimal) && !(entity instanceof EntityHuman)) {
+ if (flag && this.passengers.size() < 2 && !entity.isPassenger() && entity.getWidth() < this.getWidth() && entity instanceof EntityLiving && !(entity instanceof EntityWaterAnimal) && !(entity instanceof EntityHuman)) { // Paper - do not copy passenger list
entity.startRiding(this);
} else {
this.collide(entity);
@@ -682,8 +682,8 @@ public class EntityBoat extends Entity {
float f = 0.0F;
float f1 = (float) ((this.dead ? 0.009999999776482582D : this.bc()) + entity.bb());
- if (this.getPassengers().size() > 1) {
- int i = this.getPassengers().indexOf(entity);
+ if (this.passengers.size() > 1) { // Paper - do not copy list
+ int i = this.passengers.indexOf(entity); // Paper - do not copy list
if (i == 0) {
f = 0.2F;
@@ -702,7 +702,7 @@ public class EntityBoat extends Entity {
entity.yaw += this.ak;
entity.setHeadRotation(entity.getHeadRotation() + this.ak);
this.a(entity);
- if (entity instanceof EntityAnimal && this.getPassengers().size() > 1) {
+ if (entity instanceof EntityAnimal && this.passengers.size() > 1) { // Paper - do not copy list
int j = entity.getId() % 2 == 0 ? 90 : 270;
entity.n(((EntityAnimal) entity).aA + (float) j);
@@ -862,13 +862,13 @@ public class EntityBoat extends Entity {
@Override
protected boolean q(Entity entity) {
- return this.getPassengers().size() < 2 && !this.a((Tag) TagsFluid.WATER);
+ return this.passengers.size() < 2 && !this.a((Tag) TagsFluid.WATER); // Paper - do not copy list
}
@Nullable
@Override
public Entity getRidingPassenger() {
- List<Entity> list = this.getPassengers();
+ List<Entity> list = this.passengers; // Paper - do not copy list
return list.isEmpty() ? null : (Entity) list.get(0);
}
diff --git a/src/main/java/net/minecraft/server/EntityHorseAbstract.java b/src/main/java/net/minecraft/server/EntityHorseAbstract.java
index 410578d7baf08db330b708a6c5517c4986258f97..acbdaa097dfd1cba18add0a09ad54ca78d3e0c24 100644
--- a/src/main/java/net/minecraft/server/EntityHorseAbstract.java
+++ b/src/main/java/net/minecraft/server/EntityHorseAbstract.java
@@ -911,7 +911,7 @@ public abstract class EntityHorseAbstract extends EntityAnimal implements IInven
@Nullable
@Override
public Entity getRidingPassenger() {
- return this.getPassengers().isEmpty() ? null : (Entity) this.getPassengers().get(0);
+ return this.passengers.isEmpty() ? null : (Entity) this.passengers.get(0); // Paper - do not copy list
}
@Nullable
diff --git a/src/main/java/net/minecraft/server/EntityMinecartAbstract.java b/src/main/java/net/minecraft/server/EntityMinecartAbstract.java
index 022dfdc5b6af4b243e7e4da8660e8e41d04e1a30..be859a1b41254b299a507d03e453dc8efee6f3dd 100644
--- a/src/main/java/net/minecraft/server/EntityMinecartAbstract.java
+++ b/src/main/java/net/minecraft/server/EntityMinecartAbstract.java
@@ -522,7 +522,7 @@ public abstract class EntityMinecartAbstract extends Entity {
vec3d1 = new Vec3D(d8 * d4 / d6, vec3d1.y, d8 * d5 / d6);
this.setMot(vec3d1);
- Entity entity = this.getPassengers().isEmpty() ? null : (Entity) this.getPassengers().get(0);
+ Entity entity = this.passengers.isEmpty() ? null : (Entity) this.passengers.get(0); // Paper - do not copy list
if (entity instanceof EntityHuman) {
Vec3D vec3d2 = entity.getMot();
diff --git a/src/main/java/net/minecraft/server/EntityPig.java b/src/main/java/net/minecraft/server/EntityPig.java
index ee94c2827cfc53f7a37e61d8c1c0c30a52374cf8..01ca5983cade997b1f0d27fdf495c74c6daa0922 100644
--- a/src/main/java/net/minecraft/server/EntityPig.java
+++ b/src/main/java/net/minecraft/server/EntityPig.java
@@ -39,7 +39,7 @@ public class EntityPig extends EntityAnimal implements ISteerable, ISaddleable {
@Nullable
@Override
public Entity getRidingPassenger() {
- return this.getPassengers().isEmpty() ? null : (Entity) this.getPassengers().get(0);
+ return this.passengers.isEmpty() ? null : (Entity) this.passengers.get(0); // Paper - do not copy list
}
@Override
diff --git a/src/main/java/net/minecraft/server/EntityRavager.java b/src/main/java/net/minecraft/server/EntityRavager.java
index fd1ac7df68a0caebe35290cdf7a9c37519342b61..e78f158d9c682c60d42c17e0f171d492552e4079 100644
--- a/src/main/java/net/minecraft/server/EntityRavager.java
+++ b/src/main/java/net/minecraft/server/EntityRavager.java
@@ -93,7 +93,7 @@ public class EntityRavager extends EntityRaider {
@Nullable
@Override
public Entity getRidingPassenger() {
- return this.getPassengers().isEmpty() ? null : (Entity) this.getPassengers().get(0);
+ return this.passengers.isEmpty() ? null : (Entity) this.passengers.get(0); // Paper - do not copy list
}
@Override
diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
index 3960a975e74ed81c45819fe5e0f01c6c18252982..f2a9396c2ec64c79391782249db7507f12a69a9e 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -74,10 +74,10 @@ public class EntityTrackerEntry {
public final void tick() { this.a(); } // Paper - OBFHELPER
public void a() {
- List<Entity> list = this.tracker.getPassengers();
+ List<Entity> list = this.tracker.passengers; // Paper - do not copy list
if (!list.equals(this.p)) {
- this.p = list;
+ this.p = com.google.common.collect.ImmutableList.copyOf(list); // Paper - only copy list if something has changed
this.broadcastIncludingSelf(new PacketPlayOutMount(this.tracker)); // CraftBukkit
}
@@ -348,7 +348,7 @@ public class EntityTrackerEntry {
}
}
- if (!this.tracker.getPassengers().isEmpty()) {
+ if (!this.tracker.passengers.isEmpty()) { // Paper - do not create copy of list
consumer.accept(new PacketPlayOutMount(this.tracker));
}
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMount.java b/src/main/java/net/minecraft/server/PacketPlayOutMount.java
index 1d495e53fb4330ac4235721238d09e7163b2cd20..c4387df2f5c66c350184407b7f5a4db80542d1f6 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMount.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMount.java
@@ -12,7 +12,7 @@ public class PacketPlayOutMount implements Packet<PacketListenerPlayOut> {
public PacketPlayOutMount(Entity entity) {
this.a = entity.getId();
- List<Entity> list = entity.getPassengers();
+ List<Entity> list = entity.passengers; // Paper - do not create a copy of the list
this.b = new int[list.size()];
diff --git a/src/main/java/net/minecraft/server/PathfinderGoalTame.java b/src/main/java/net/minecraft/server/PathfinderGoalTame.java
index fc831dc26eaeab802d5fee456d5c662fe3f8bdfd..8757c6487a433b1fa5c46b50c559aeca82f84b8d 100644
--- a/src/main/java/net/minecraft/server/PathfinderGoalTame.java
+++ b/src/main/java/net/minecraft/server/PathfinderGoalTame.java
@@ -47,7 +47,7 @@ public class PathfinderGoalTame extends PathfinderGoal {
@Override
public void e() {
if (!this.entity.isTamed() && this.entity.getRandom().nextInt(50) == 0) {
- Entity entity = (Entity) this.entity.getPassengers().get(0);
+ Entity entity = this.entity.passengers.isEmpty() ? null : this.entity.passengers.get(0); // Paper - do not copy list, fixed array out of bounds exception as well
if (entity == null) {
return;
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 4264fab9164b8a59cbbcedfb97272413a6303ac9..00d0a5fd7c5d2db19756f3c6cfb2381868af51fd 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -2253,7 +2253,7 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially
list.add(entity);
}
- if (!entity.getPassengers().isEmpty()) {
+ if (!entity.passengers.isEmpty()) { // Paper - do not copy list
list1.add(entity);
}
}