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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 665fcf8382fbcb214eda16dae9e40e33e257ec6f..2313c451dbcb28e79d8ff139696e2efb0c4ae756 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -2480,9 +2480,15 @@ public class ServerPlayer extends 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 1f28f466aab3d829fe719878faee40f35320163b..ea8abc813809360b51cd67072d12efa03f4b4f20 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2600,17 +2600,28 @@ 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) {
@@ -2635,7 +2646,10 @@ 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 {
@@ -2645,7 +2659,7 @@ 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) {
@@ -2658,7 +2672,7 @@ 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 4f63352f9f96b104e3a01929d96ee33dcd01ab7d..cc5cafa8388d96e18494d3c89f36d1654ea44f7d 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3575,9 +3575,15 @@ 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 509c8fae366e6aeca324b4d8e39bd3182d6d9b9b..c2005b86ac9ff6aa03ef7937c2b7a228addc4f01 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Shulker.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
@@ -288,7 +288,13 @@ 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 8f7bce51e393074246575b0d8bb3cad68ecb4270..e60385c2b84ca0807ed5fc710017a1de09aa3c4e 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1150,7 +1150,13 @@ 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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