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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 15 Nov 2018 13:38:37 +0000
Subject: [PATCH] force entity dismount during teleportation
Entities must be dismounted before teleportation in order to avoid
multiple issues in the server with regards to teleportation, shamefully,
too many plugins rely on the events firing, which means that not firing
these events caues more issues than it solves;
In order to counteract this, Entity dismount/exit vehicle events have
been modified to supress cancellation (and has a method to allow plugins
to check if this has been set), noting that cancellation will be silently
surpressed given that plugins are not expecting this event to not be cancellable.
This is a far from ideal scenario, however: given the current state of this
event and other alternatives causing issues elsewhere, I believe that
this is going to be the best soultion all around.
Improvements/suggestions welcome!
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index d54213bab1099bb96c8175f0c03a1b034cc41ce2..2db5ef211ac36d5aa7f337dd4a5c2600796d8b66 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -2806,9 +2806,15 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
@Override
public void stopRiding() {
+ // Paper start - Force entity dismount during teleportation
+ this.stopRiding(false);
+ }
+ @Override
+ public void stopRiding(boolean suppressCancellation) {
+ // Paper end - Force entity dismount during teleportation
Entity entity = this.getVehicle();
- super.stopRiding();
+ super.stopRiding(suppressCancellation); // Paper - Force entity dismount during teleportation
if (entity instanceof LivingEntity entityliving) {
Iterator iterator = entityliving.getActiveEffects().iterator();
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 87ab16a82b4ba58fd469eb845d79e9ad98cf45bc..3cc210dc92f74c37f4de6eaf31ff3ec7aa11248a 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2852,17 +2852,28 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
public void removeVehicle() {
+ // Paper start - Force entity dismount during teleportation
+ this.removeVehicle(false);
+ }
+ public void removeVehicle(boolean suppressCancellation) {
+ // Paper end - Force entity dismount during teleportation
if (this.vehicle != null) {
Entity entity = this.vehicle;
this.vehicle = null;
- if (!entity.removePassenger(this)) this.vehicle = entity; // CraftBukkit
+ if (!entity.removePassenger(this, suppressCancellation)) this.vehicle = entity; // CraftBukkit // Paper - Force entity dismount during teleportation
}
}
public void stopRiding() {
- this.removeVehicle();
+ // Paper start - Force entity dismount during teleportation
+ this.stopRiding(false);
+ }
+
+ public void stopRiding(boolean suppressCancellation) {
+ this.removeVehicle(suppressCancellation);
+ // Paper end - Force entity dismount during teleportation
}
protected void addPassenger(Entity passenger) {
@@ -2887,7 +2898,10 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
}
- protected boolean removePassenger(Entity entity) { // CraftBukkit
+ // Paper start - Force entity dismount during teleportation
+ protected boolean removePassenger(Entity entity) { return removePassenger(entity, false);}
+ protected boolean removePassenger(Entity entity, boolean suppressCancellation) { // CraftBukkit
+ // Paper end - Force entity dismount during teleportation
if (entity.getVehicle() == this) {
throw new IllegalStateException("Use x.stopRiding(y), not y.removePassenger(x)");
} else {
@@ -2897,7 +2911,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
if (this.getBukkitEntity() instanceof Vehicle && entity.getBukkitEntity() instanceof LivingEntity) {
VehicleExitEvent event = new VehicleExitEvent(
(Vehicle) this.getBukkitEntity(),
- (LivingEntity) entity.getBukkitEntity()
+ (LivingEntity) entity.getBukkitEntity(), !suppressCancellation // Paper - Force entity dismount during teleportation
);
// Suppress during worldgen
if (this.valid) {
@@ -2910,7 +2924,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
}
- EntityDismountEvent event = new EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity());
+ EntityDismountEvent event = new EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity(), !suppressCancellation); // Paper - Force entity dismount during teleportation
// Suppress during worldgen
if (this.valid) {
Bukkit.getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index df7dce2bff49023d22622c90795428222dc489ce..782c187d2b4f706463a1e643f1976512104797a6 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3768,9 +3768,15 @@ public abstract class LivingEntity extends Entity implements Attackable {
@Override
public void stopRiding() {
+ // Paper start - Force entity dismount during teleportation
+ this.stopRiding(false);
+ }
+ @Override
+ public void stopRiding(boolean suppressCancellation) {
+ // Paper end - Force entity dismount during teleportation
Entity entity = this.getVehicle();
- super.stopRiding();
+ super.stopRiding(suppressCancellation); // Paper - Force entity dismount during teleportation
if (entity != null && entity != this.getVehicle() && !this.level().isClientSide) {
this.dismountVehicle(entity);
}
diff --git a/src/main/java/net/minecraft/world/entity/monster/Shulker.java b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
index b2149a977f30524bd526eafa248b2ca369ae4648..74fa6d2b569b42ac2dbb7efb10df658b9ffeecc4 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Shulker.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
@@ -289,7 +289,13 @@ public class Shulker extends AbstractGolem implements VariantHolder<Optional<Dye
@Override
public void stopRiding() {
- super.stopRiding();
+ // Paper start - Force entity dismount during teleportation
+ this.stopRiding(false);
+ }
+ @Override
+ public void stopRiding(boolean suppressCancellation) {
+ super.stopRiding(suppressCancellation);
+ // Paper end - Force entity dismount during teleportation
if (this.level().isClientSide) {
this.clientOldAttachPosition = this.blockPosition();
}
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 833e2b338671b81401409fc390ab1515f3520442..858f123934021b7a3911d3d5cfcb8352293a8302 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1134,7 +1134,13 @@ public abstract class Player extends LivingEntity {
@Override
public void removeVehicle() {
- super.removeVehicle();
+ // Paper start - Force entity dismount during teleportation
+ this.removeVehicle(false);
+ }
+ @Override
+ public void removeVehicle(boolean suppressCancellation) {
+ super.removeVehicle(suppressCancellation);
+ // Paper end - Force entity dismount during teleportation
this.boardingCooldown = 0;
}
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