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41647af74c
We cannot put blocking network I/O onto the worldgen threads, this will crash the server if it stalls
135 lines
6.3 KiB
Diff
135 lines
6.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Thu, 15 Nov 2018 13:38:37 +0000
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Subject: [PATCH] force entity dismount during teleportation
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Entities must be dismounted before teleportation in order to avoid
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multiple issues in the server with regards to teleportation, shamefully,
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too many plugins rely on the events firing, which means that not firing
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these events caues more issues than it solves;
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In order to counteract this, Entity dismount/exit vehicle events have
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been modified to supress cancellation (and has a method to allow plugins
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to check if this has been set), noting that cancellation will be silently
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surpressed given that plugins are not expecting this event to not be cancellable.
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This is a far from ideal scenario, however: given the current state of this
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event and other alternatives causing issues elsewhere, I believe that
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this is going to be the best soultion all around.
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Improvements/suggestions welcome!
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index 15b9186ad0e52a55a3f523e4f1d96ef34ca99145..2e42a61e315a6857ca8b2ef4a63c974057a254cb 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -1336,11 +1336,13 @@ public class ServerPlayer extends Player {
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}
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}
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- @Override
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- public void stopRiding() {
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+ // Paper start
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+ @Override public void stopRiding() { stopRiding(false); }
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+ @Override public void stopRiding(boolean suppressCancellation) {
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+ // Paper end
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Entity entity = this.getVehicle();
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- super.stopRiding();
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+ super.stopRiding(suppressCancellation); // Paper
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Entity entity1 = this.getVehicle();
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if (entity1 != entity && this.connection != null) {
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index 236b59f5119a4f91919ab93c8edd5269ea34b1ee..ce5bb09aef3c2d8a2d30f3887e4c7e3ef0202460 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -2317,11 +2317,16 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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}
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public void removeVehicle() {
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+ // Paper start
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+ stopRiding(false);
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+ }
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+ public void stopRiding(boolean suppressCancellation) {
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+ // Paper end
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if (this.vehicle != null) {
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Entity entity = this.vehicle;
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this.vehicle = null;
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- if (!entity.removePassenger(this)) this.vehicle = entity; // CraftBukkit
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+ if (!entity.removePassenger(this, suppressCancellation)) this.vehicle = entity; // CraftBukkit // Paper
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}
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}
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@@ -2384,7 +2389,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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return true; // CraftBukkit
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}
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- protected boolean removePassenger(Entity entity) { // CraftBukkit
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+ // Paper start
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+ protected boolean removePassenger(Entity entity) { return removePassenger(entity, false);}
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+ protected boolean removePassenger(Entity entity, boolean suppressCancellation) { // CraftBukkit
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+ // Paper end
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if (entity.getVehicle() == this) {
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throw new IllegalStateException("Use x.stopRiding(y), not y.removePassenger(x)");
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} else {
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@@ -2394,7 +2402,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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if (this.getBukkitEntity() instanceof Vehicle && entity.getBukkitEntity() instanceof LivingEntity) {
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VehicleExitEvent event = new VehicleExitEvent(
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(Vehicle) this.getBukkitEntity(),
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- (LivingEntity) entity.getBukkitEntity()
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+ (LivingEntity) entity.getBukkitEntity(), !suppressCancellation // Paper
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);
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// Suppress during worldgen
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if (this.valid) {
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@@ -2408,7 +2416,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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}
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// CraftBukkit end
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// Spigot start
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- org.spigotmc.event.entity.EntityDismountEvent event = new org.spigotmc.event.entity.EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity());
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+ org.spigotmc.event.entity.EntityDismountEvent event = new org.spigotmc.event.entity.EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity(), !suppressCancellation); // Paper
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// Suppress during worldgen
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if (this.valid) {
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Bukkit.getPluginManager().callEvent(event);
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index 0d5157abac635da2fdfe25fb10d28e18ad94bd3a..4a51a12cf57e4cbf10d9a7fd03c319573422c858 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -3379,9 +3379,15 @@ public abstract class LivingEntity extends Entity {
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@Override
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public void stopRiding() {
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+ // Paper start
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+ stopRiding(false);
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+ }
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+ @Override
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+ public void stopRiding(boolean suppressCancellation) {
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+ // Paper end
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Entity entity = this.getVehicle();
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- super.stopRiding();
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+ super.stopRiding(suppressCancellation); // Paper - suppress
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if (entity != null && entity != this.getVehicle() && !this.level.isClientSide) {
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this.dismountVehicle(entity);
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}
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diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
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index 9dad71368225d86598f02962b42659bc601ce144..6b7aea148b7a979201dd51bf842a552644fd0a63 100644
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--- a/src/main/java/net/minecraft/world/entity/player/Player.java
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+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
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@@ -1159,7 +1159,13 @@ public abstract class Player extends LivingEntity {
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@Override
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public void removeVehicle() {
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- super.removeVehicle();
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+ // Paper start
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+ stopRiding(false);
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+ }
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+ @Override
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+ public void stopRiding(boolean suppressCancellation) {
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+ // Paper end
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+ super.stopRiding(suppressCancellation); // Paper - suppress
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this.boardingCooldown = 0;
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}
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