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Since 1.21.2, vanilla split relative teleportation flags into position and delta/velocity flags into separate enum entries. This highlighted a design flaw in the paper api addition for teleport flags, which just simply mirrored internals while also only being able to apply the delta/velocity part of a flag, given the teleport target is always absolute in the API. This patch proposes to simply no longer expose the non-velocity related flags to the API, instead marking the entire Relative enum as being purely velocity related, as non-velocity related flags are not useful to callers. This was done over simply exposing all internal flags, as another vanilla change to the internal enum would result in the same breakage. The newly proposed API *only* promises that the passed flags prevent the loss of velocity in the specific axis/context, which should be independent enough of vanillas specific implementation of this feature.
310 lines
13 KiB
Diff
310 lines
13 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
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Date: Sun, 5 Sep 2021 00:36:05 -0400
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Subject: [PATCH] More Teleport API
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diff --git a/src/main/java/io/papermc/paper/entity/LookAnchor.java b/src/main/java/io/papermc/paper/entity/LookAnchor.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..544eec787ea837f7d29df6519255840d6fe087d7
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/entity/LookAnchor.java
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@@ -0,0 +1,24 @@
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+package io.papermc.paper.entity;
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+
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+import io.papermc.paper.math.Position;
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+import org.bukkit.entity.Entity;
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+import org.bukkit.entity.LivingEntity;
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+
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+/**
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+ * Represents what part of the entity should be used when determining where to face a position/entity.
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+ *
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+ * @see org.bukkit.entity.Player#lookAt(Position, LookAnchor)
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+ * @see org.bukkit.entity.Player#lookAt(Entity, LookAnchor, LookAnchor)
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+ */
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+public enum LookAnchor {
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+ /**
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+ * Represents the entity's feet.
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+ * @see LivingEntity#getLocation()
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+ */
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+ FEET,
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+ /**
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+ * Represents the entity's eyes.
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+ * @see LivingEntity#getEyeLocation()
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+ */
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+ EYES;
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+}
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diff --git a/src/main/java/io/papermc/paper/entity/TeleportFlag.java b/src/main/java/io/papermc/paper/entity/TeleportFlag.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..bbc006152ac7885e1ffd05e84073ac1af45cc1a3
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/entity/TeleportFlag.java
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@@ -0,0 +1,113 @@
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+package io.papermc.paper.entity;
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+
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+import org.bukkit.Location;
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+import org.bukkit.event.player.PlayerTeleportEvent;
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+
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+/**
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+ * Represents a flag that can be set on teleportation that may
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+ * slightly modify the behavior.
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+ *
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+ * @see EntityState
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+ * @see Relative
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+ */
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+public sealed interface TeleportFlag permits TeleportFlag.EntityState, TeleportFlag.Relative {
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+
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+ /**
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+ * Note: These flags only work on {@link org.bukkit.entity.Player} entities.
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+ * <p>
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+ * Relative flags enable a player to not loose their velocity in the flag-specific axis/context when teleporting.
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+ *
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+ * @apiNote The relative flags exposed in the API do *not* mirror all flags known to vanilla, as relative flags concerning
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+ * the position are non-applicable given teleports always expect an absolute location.
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+ * @see org.bukkit.entity.Player#teleport(Location, PlayerTeleportEvent.TeleportCause, TeleportFlag...)
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+ */
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+ enum Relative implements TeleportFlag {
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+ /**
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+ * Configures the player to not loose velocity in their x axis during the teleport.
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+ */
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+ VELOCITY_X,
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+ /**
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+ * Configures the player to not loose velocity in their y axis during the teleport.
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+ */
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+ VELOCITY_Y,
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+ /**
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+ * Configures the player to not loose velocity in their z axis during the teleport.
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+ */
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+ VELOCITY_Z,
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+ /**
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+ * Configures the player to not loose velocity in their current rotation during the teleport.
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+ */
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+ VELOCITY_ROTATION;
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+ /**
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+ * Configures the player to not loose velocity in their x axis during the teleport.
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+ * @deprecated Since 1.21.3, vanilla split up the relative teleport flags into velocity and position related
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+ * ones. As the API does not deal with position relative flags, this name is no longer applicable.
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+ * Use {@link #VELOCITY_X} instead.
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+ */
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+ @Deprecated(since = "1.21.3", forRemoval = true)
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+ public static final Relative X = VELOCITY_X;
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+ /**
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+ * Configures the player to not loose velocity in their y axis during the teleport.
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+ * @deprecated Since 1.21.3, vanilla split up the relative teleport flags into velocity and position related
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+ * ones. As the API does not deal with position relative flags, this name is no longer applicable.
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+ * Use {@link #VELOCITY_Y} instead.
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+ */
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+ @Deprecated(since = "1.21.3", forRemoval = true)
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+ public static final Relative Y = VELOCITY_Y;
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+ /**
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+ * Configures the player to not loose velocity in their z axis during the teleport.
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+ * @deprecated Since 1.21.3, vanilla split up the relative teleport flags into velocity and position related
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+ * ones. As the API does not deal with position relative flags, this name is no longer applicable.
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+ * Use {@link #VELOCITY_Z} instead.
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+ */
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+ @Deprecated(since = "1.21.3", forRemoval = true)
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+ public static final Relative Z = VELOCITY_Z;
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+ /**
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+ * Represents the player's yaw
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+ *
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+ * @deprecated relative velocity flags now allow for the whole rotation to be relative, instead of the yaw and
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+ * pitch having individual options. Use {@link #VELOCITY_ROTATION} instead.
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+ */
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+ @Deprecated(since = "1.21.3", forRemoval = true)
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+ public static final Relative YAW = VELOCITY_ROTATION;
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+ /**
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+ * Represents the player's pitch
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+ *
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+ * @deprecated relative velocity flags now allow for the whole rotation to be relative, instead of the yaw and
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+ * pitch having individual options. Use {@link #VELOCITY_ROTATION} instead.
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+ */
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+ @Deprecated(since = "1.21.3", forRemoval = true)
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+ public static final Relative PITCH = VELOCITY_ROTATION;
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+ }
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+
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+ /**
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+ * Represents flags that effect the entity's state on
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+ * teleportation.
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+ */
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+ enum EntityState implements TeleportFlag {
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+ /**
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+ * If all passengers should not be required to be removed prior to teleportation.
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+ * <p>
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+ * Note:
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+ * Teleporting to a different world with this flag present while the entity has entities riding it
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+ * will cause this teleportation to return false and not occur.
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+ */
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+ RETAIN_PASSENGERS,
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+ /**
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+ * If the entity should not be dismounted if they are riding another entity.
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+ * <p>
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+ * Note:
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+ * Teleporting to a different world with this flag present while this entity is riding another entity will
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+ * cause this teleportation to return false and not occur.
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+ */
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+ RETAIN_VEHICLE,
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+ /**
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+ * Indicates that a player should not have their current open inventory closed when teleporting.
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+ * <p>
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+ * Note:
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+ * This option will be ignored when teleported to a different world.
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+ */
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+ RETAIN_OPEN_INVENTORY;
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+ }
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+
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+}
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diff --git a/src/main/java/org/bukkit/entity/Entity.java b/src/main/java/org/bukkit/entity/Entity.java
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index f51f3f04ba9efe15f68620c5531b502710078b6e..8bada7f7f0200103edc415ad003132d96ae09607 100644
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--- a/src/main/java/org/bukkit/entity/Entity.java
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+++ b/src/main/java/org/bukkit/entity/Entity.java
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@@ -126,10 +126,32 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
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*
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* @param yaw the yaw
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* @param pitch the pitch
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- * @throws UnsupportedOperationException if used for players
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*/
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public void setRotation(float yaw, float pitch);
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+ // Paper start - Teleport API
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+ /**
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+ * Teleports this entity to the given location.
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+ *
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+ * @param location New location to teleport this entity to
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+ * @param teleportFlags Flags to be used in this teleportation
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+ * @return <code>true</code> if the teleport was successful
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+ */
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+ default boolean teleport(@NotNull Location location, @NotNull io.papermc.paper.entity.TeleportFlag @NotNull... teleportFlags) {
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+ return this.teleport(location, TeleportCause.PLUGIN, teleportFlags);
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+ }
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+
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+ /**
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+ * Teleports this entity to the given location.
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+ *
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+ * @param location New location to teleport this entity to
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+ * @param cause The cause of this teleportation
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+ * @param teleportFlags Flags to be used in this teleportation
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+ * @return <code>true</code> if the teleport was successful
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+ */
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+ boolean teleport(@NotNull Location location, @NotNull TeleportCause cause, @NotNull io.papermc.paper.entity.TeleportFlag @NotNull... teleportFlags);
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+ // Paper end - Teleport API
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+
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/**
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* Teleports this entity to the given location. If this entity is riding a
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* vehicle, it will be dismounted prior to teleportation.
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diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
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index 99bad852128f499f8f71552399c49f373d51cf9c..4371ac4683604919782f6268756dff4f05695a40 100644
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--- a/src/main/java/org/bukkit/entity/Player.java
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+++ b/src/main/java/org/bukkit/entity/Player.java
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@@ -3561,6 +3561,45 @@ public interface Player extends HumanEntity, Conversable, OfflinePlayer, PluginM
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String getClientBrandName();
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// Paper end
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+ // Paper start - Teleport API
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+ /**
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+ * Sets the player's rotation.
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+ *
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+ * @param yaw the yaw
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+ * @param pitch the pitch
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+ */
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+ void setRotation(float yaw, float pitch);
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+
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+ /**
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+ * Causes the player to look towards the given position.
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+ *
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+ * @param x x coordinate
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+ * @param y y coordinate
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+ * @param z z coordinate
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+ * @param playerAnchor What part of the player should face the given position
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+ */
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+ void lookAt(double x, double y, double z, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor);
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+
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+ /**
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+ * Causes the player to look towards the given position.
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+ *
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+ * @param position Position to look at in the player's current world
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+ * @param playerAnchor What part of the player should face the given position
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+ */
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+ default void lookAt(@NotNull io.papermc.paper.math.Position position, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor) {
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+ this.lookAt(position.x(), position.y(), position.z(), playerAnchor);
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+ }
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+
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+ /**
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+ * Causes the player to look towards the given entity.
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+ *
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+ * @param entity Entity to look at
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+ * @param playerAnchor What part of the player should face the entity
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+ * @param entityAnchor What part of the entity the player should face
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+ */
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+ void lookAt(@NotNull org.bukkit.entity.Entity entity, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor, @NotNull io.papermc.paper.entity.LookAnchor entityAnchor);
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+ // Paper end - Teleport API
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+
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@NotNull
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@Override
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Spigot spigot();
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diff --git a/src/main/java/org/bukkit/event/player/PlayerTeleportEvent.java b/src/main/java/org/bukkit/event/player/PlayerTeleportEvent.java
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index 2deae344c88920ab95eefd2f65df5c858e04750b..ccfb08af8c57ddac3062c2cec28d7ff428082709 100644
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--- a/src/main/java/org/bukkit/event/player/PlayerTeleportEvent.java
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+++ b/src/main/java/org/bukkit/event/player/PlayerTeleportEvent.java
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@@ -13,8 +13,14 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
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private static final HandlerList handlers = new HandlerList();
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private TeleportCause cause = TeleportCause.UNKNOWN;
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+ // Paper start - Teleport API
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+ private boolean dismounted = true;
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+ private final java.util.Set<io.papermc.paper.entity.TeleportFlag.Relative> teleportFlagSet;
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+ // Paper end
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+
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public PlayerTeleportEvent(@NotNull final Player player, @NotNull final Location from, @Nullable final Location to) {
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super(player, from, to);
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+ teleportFlagSet = java.util.Collections.emptySet(); // Paper - Teleport API
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}
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public PlayerTeleportEvent(@NotNull final Player player, @NotNull final Location from, @Nullable final Location to, @NotNull final TeleportCause cause) {
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@@ -23,6 +29,15 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
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this.cause = cause;
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}
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+ // Paper start - Teleport API
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+ @org.jetbrains.annotations.ApiStatus.Internal
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+ public PlayerTeleportEvent(@NotNull final Player player, @NotNull final Location from, @Nullable final Location to, @NotNull final TeleportCause cause, @NotNull java.util.Set<io.papermc.paper.entity.TeleportFlag.@NotNull Relative> teleportFlagSet) {
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+ super(player, from, to);
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+ this.teleportFlagSet = teleportFlagSet;
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+ this.cause = cause;
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+ }
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+ // Paper end
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+
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/**
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* Gets the cause of this teleportation event
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*
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@@ -88,6 +103,30 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
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UNKNOWN;
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}
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+ // Paper start - Teleport API
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+ /**
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+ * Gets if the player will be dismounted in this teleportation.
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+ *
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+ * @return dismounted or not
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+ * @deprecated dismounting on tp is no longer controlled by the server
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+ */
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+ @Deprecated(forRemoval = true)
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+ public boolean willDismountPlayer() {
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+ return this.dismounted;
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+ }
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+
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+ /**
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+ * Returns the relative teleportation flags used in this teleportation.
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+ * This determines which axis the player will not lose their velocity in.
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+ *
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+ * @return an immutable set of relative teleportation flags
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+ */
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+ @NotNull
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+ public java.util.Set<io.papermc.paper.entity.TeleportFlag.@NotNull Relative> getRelativeTeleportationFlags() {
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+ return this.teleportFlagSet;
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+ }
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+ // Paper end
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+
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@NotNull
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@Override
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public HandlerList getHandlers() {
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