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Paper/Spigot-Server-Patches/0679-do-not-create-unnecessary-copies-of-passenger-list.patch
Josh Roy be13705177
Updated Upstream (CraftBukkit) (#5484) 
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

CraftBukkit Changes:
6b8cd9a7 SPIGOT-6207: forcibly drop the items of a converted zombie villager
2021-04-12 02:03:08 +01:00

240 Zeilen
13 KiB
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Originalformat Blame Verlauf

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/network/protocol/game/PacketPlayOutMount.java b/src/main/java/net/minecraft/network/protocol/game/PacketPlayOutMount.java
index edc6fff87c4abad2c123b1a46d6e5b792602b3be..5e739b26b6b5490b2c7651d3e9ff8649e776137e 100644
--- a/src/main/java/net/minecraft/network/protocol/game/PacketPlayOutMount.java
+++ b/src/main/java/net/minecraft/network/protocol/game/PacketPlayOutMount.java
@@ -15,7 +15,7 @@ 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/level/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/level/EntityTrackerEntry.java
index 58dd349adf2bc9bac6569464ef7a7aec81729e79..1df8fb8cb3fcf8201e1c5fa8ca13f7a9c632c379 100644
--- a/src/main/java/net/minecraft/server/level/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/level/EntityTrackerEntry.java
@@ -103,10 +103,10 @@ 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
}
@@ -376,7 +376,7 @@ 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/level/PlayerChunkMap.java b/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
index b47cd2a8fb4920531d80acfcfe40f8211fedc9ae..300884804bf9ac3fba7c30a04d8adf52e3dd2e3e 100644
--- a/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
@@ -2307,7 +2307,7 @@ 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);
}
}
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 7abeeefeb579a43bc9ee85fd4150afacfb11c802..429f0591c6a55f6c5d08a0755f7d39da676468bc 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2230,7 +2230,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
}
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
@@ -2326,7 +2326,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
}
public boolean isVehicle() {
- return !this.getPassengers().isEmpty();
+ return !this.passengers.isEmpty(); // Paper - do not copy list
}
public boolean bt() {
@@ -3138,7 +3138,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
}
public boolean w(Entity entity) {
- Iterator iterator = this.getPassengers().iterator();
+ Iterator iterator = this.passengers.iterator(); // Paper - do not copy list
Entity entity1;
@@ -3154,7 +3154,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
}
public boolean a(Class<? extends Entity> oclass) {
- Iterator iterator = this.getPassengers().iterator();
+ Iterator iterator = this.passengers.iterator(); // Paper - do not copy list
Entity entity;
@@ -3171,7 +3171,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
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();
@@ -3197,7 +3197,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
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/world/entity/ai/goal/PathfinderGoalTame.java b/src/main/java/net/minecraft/world/entity/ai/goal/PathfinderGoalTame.java
index ec51a5532576ce25465bacf61c716ddaffca514e..d285f5aa66fa81a2f56920c05afb4506cb82fa54 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/PathfinderGoalTame.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/PathfinderGoalTame.java
@@ -52,7 +52,7 @@ 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/world/entity/animal/EntityPig.java b/src/main/java/net/minecraft/world/entity/animal/EntityPig.java
index d6e1697f64e60f2a567288c604a1690159955f37..676ca381a5e111fc15f319e73504e4e60dbf0d2b 100644
--- a/src/main/java/net/minecraft/world/entity/animal/EntityPig.java
+++ b/src/main/java/net/minecraft/world/entity/animal/EntityPig.java
@@ -86,7 +86,7 @@ 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/world/entity/animal/horse/EntityHorseAbstract.java b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
index d678e3164ecdb7f0c600597bcb39d1054dfbc4b2..1e41c45af6dbcf097d7d6104e63db637f199301a 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
@@ -972,7 +972,7 @@ 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/world/entity/monster/EntityRavager.java b/src/main/java/net/minecraft/world/entity/monster/EntityRavager.java
index 7781386da593a1c4f3ad7e7e8761767dda7cb66c..16d5cae64887b82e67eeb61ccb714e6125ff0c09 100644
--- a/src/main/java/net/minecraft/world/entity/monster/EntityRavager.java
+++ b/src/main/java/net/minecraft/world/entity/monster/EntityRavager.java
@@ -134,7 +134,7 @@ 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/world/entity/vehicle/EntityBoat.java b/src/main/java/net/minecraft/world/entity/vehicle/EntityBoat.java
index 069076d3c7165440217a7632b089ab2aa0fbdb1d..5e2c13bd6e52ffe182ef034e05ba6fe1cb301005 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/EntityBoat.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/EntityBoat.java
@@ -317,7 +317,7 @@ 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);
}
@@ -380,7 +380,7 @@ 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);
@@ -727,8 +727,8 @@ 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;
@@ -747,7 +747,7 @@ 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);
@@ -907,13 +907,13 @@ 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/world/entity/vehicle/EntityMinecartAbstract.java b/src/main/java/net/minecraft/world/entity/vehicle/EntityMinecartAbstract.java
index 57821301ef031995e6044a17b46c70a693322455..75a88ab5d5b0fdb98ea8d61bb6b82049b21101f3 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/EntityMinecartAbstract.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/EntityMinecartAbstract.java
@@ -561,7 +561,7 @@ 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();
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