Paper/patches/server/0285-force-entity-dismount-during-teleportation.patch
Nassim Jahnke 72e87abc2d
Strip raytracing for EntityLiving#hasLineOfSight
Co-authored-by: Paul Sauve <paul@technove.co>
2023-09-10 12:28:03 +10:00

114 lines
5.5 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/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 7ca89b1a5bbeefd8622cb0f93e0235abcefbc033..dee47ff97e4f08154866d7628c3588a42f9892b9 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2564,11 +2564,16 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
public void removeVehicle() {
+ // Paper start
+ 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
}
}
@@ -2599,7 +2604,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
}
- 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 {
@@ -2609,7 +2617,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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) {
@@ -2623,7 +2631,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
// 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 f800b3e4debcd141a75de9e6025a87e81cee083c..965c5724eb4927f017123c791c4a721c59b6db15 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3438,9 +3438,15 @@ public abstract class LivingEntity extends Entity implements Attackable {
@Override
public void stopRiding() {
+ // Paper start
+ 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 c7bcbc3f0542a74c30e29bded3bfc0e94daeab25..078986fb32eeecacc954ad6719e981ed8b3a2350 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1148,7 +1148,13 @@ public abstract class Player extends LivingEntity {
@Override
public void removeVehicle() {
- super.removeVehicle();
+ // Paper start
+ stopRiding(false);
+ }
+ @Override
+ public void stopRiding(boolean suppressCancellation) {
+ // Paper end
+ super.stopRiding(suppressCancellation); // Paper - suppress
this.boardingCooldown = 0;
}