Paper/patches/server/0297-force-entity-dismount-during-teleportation.patch
2021-10-02 10:21:49 -07:00

135 Zeilen
6.5 KiB
Diff

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 d32e6feca6c39a28f80574e4b080ddd4cbb60fdc..42035548577b7c60806a557dd9f9931ca9584e8c 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1296,11 +1296,13 @@ public class ServerPlayer extends Player {
}
}
- @Override
- public void stopRiding() {
+ // Paper start
+ @Override public void stopRiding() { stopRiding(false); }
+ @Override public void stopRiding(boolean suppressCancellation) {
+ // Paper end
Entity entity = this.getVehicle();
- super.stopRiding();
+ super.stopRiding(suppressCancellation); // Paper
Entity entity1 = this.getVehicle();
if (entity1 != entity && this.connection != null) {
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index b4f2b969ad30be38c0a9e3f8efd2a57c3e0f7df0..3c7e75b8fc1bfbe08e232fcba412c83f4aba274c 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2245,12 +2245,15 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
}
- public void removeVehicle() {
+ // Paper start
+ public void removeVehicle() { stopRiding(false); }
+ public void stopRiding(boolean suppressCancellation) {
+ // Paper end
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
}
}
@@ -2313,7 +2316,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
return true; // CraftBukkit
}
- protected boolean removePassenger(Entity entity) { // CraftBukkit
+ // Paper start
+ protected boolean removePassenger(Entity entity) { return removePassenger(entity, false);}
+ protected boolean removePassenger(Entity entity, boolean suppressCancellation) { // CraftBukkit
+ // Paper end
if (entity.getVehicle() == this) {
throw new IllegalStateException("Use x.stopRiding(y), not y.removePassenger(x)");
} else {
@@ -2323,7 +2329,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
if (this.getBukkitEntity() instanceof Vehicle && entity.getBukkitEntity() instanceof LivingEntity) {
VehicleExitEvent event = new VehicleExitEvent(
(Vehicle) this.getBukkitEntity(),
- (LivingEntity) entity.getBukkitEntity()
+ (LivingEntity) entity.getBukkitEntity(), !suppressCancellation // Paper
);
// Suppress during worldgen
if (this.valid) {
@@ -2337,7 +2343,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
}
// CraftBukkit end
// Spigot start
- org.spigotmc.event.entity.EntityDismountEvent event = new org.spigotmc.event.entity.EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity());
+ org.spigotmc.event.entity.EntityDismountEvent event = new org.spigotmc.event.entity.EntityDismountEvent(entity.getBukkitEntity(), this.getBukkitEntity(), !suppressCancellation); // Paper
// 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 182351530dfbbbeb39338425886bd3fd04aa0364..aecb662a8e9e803b619a88d1d1637386fb39c679 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3336,11 +3336,13 @@ public abstract class LivingEntity extends Entity {
return ((Byte) this.entityData.get(LivingEntity.DATA_LIVING_ENTITY_FLAGS) & 4) != 0;
}
- @Override
- public void stopRiding() {
+ // Paper start
+ @Override public void stopRiding() { stopRiding(false); }
+ @Override public void stopRiding(boolean suppressCancellation) {
+ // Paper end
Entity entity = this.getVehicle();
- super.stopRiding();
+ super.stopRiding(suppressCancellation); // Paper - suppress
if (entity != null && entity != this.getVehicle() && !this.level.isClientSide) {
this.dismountVehicle(entity);
}
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 744d8c049e753c0e07cf064597a086ccf6d3f3ea..22ca888f0ec650616c098c8ffedfde5ea32ea4cb 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1094,9 +1094,11 @@ public abstract class Player extends LivingEntity {
return -0.35D;
}
- @Override
- public void removeVehicle() {
- super.removeVehicle();
+ // Paper start
+ @Override public void removeVehicle() { stopRiding(false); }
+ @Override public void stopRiding(boolean suppressCancellation) {
+ // Paper end
+ super.stopRiding(suppressCancellation); // Paper - suppress
this.boardingCooldown = 0;
}