More Teleport API

paper-api/src/main/java/org/bukkit/entity/Entity.java

@@ -126,10 +126,32 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
      *
      * @param yaw the yaw
      * @param pitch the pitch
-     * @throws UnsupportedOperationException if used for players
      */
     public void setRotation(float yaw, float pitch);
 
+    // Paper start - Teleport API
+    /**
+     * Teleports this entity to the given location.
+     *
+     * @param location New location to teleport this entity to
+     * @param teleportFlags Flags to be used in this teleportation
+     * @return <code>true</code> if the teleport was successful
+     */
+    default boolean teleport(@NotNull Location location, @NotNull io.papermc.paper.entity.TeleportFlag @NotNull... teleportFlags) {
+        return this.teleport(location, TeleportCause.PLUGIN, teleportFlags);
+    }
+
+    /**
+     * Teleports this entity to the given location.
+     *
+     * @param location New location to teleport this entity to
+     * @param cause The cause of this teleportation
+     * @param teleportFlags Flags to be used in this teleportation
+     * @return <code>true</code> if the teleport was successful
+     */
+    boolean teleport(@NotNull Location location, @NotNull TeleportCause cause, @NotNull io.papermc.paper.entity.TeleportFlag @NotNull... teleportFlags);
+    // Paper end - Teleport API
+
     /**
      * Teleports this entity to the given location. If this entity is riding a
      * vehicle, it will be dismounted prior to teleportation.

paper-api/src/main/java/org/bukkit/entity/Player.java

@@ -3561,6 +3561,45 @@ public interface Player extends HumanEntity, Conversable, OfflinePlayer, PluginM
     String getClientBrandName();
     // Paper end
 
+    // Paper start - Teleport API
+    /**
+     * Sets the player's rotation.
+     *
+     * @param yaw the yaw
+     * @param pitch the pitch
+     */
+    void setRotation(float yaw, float pitch);
+
+    /**
+     * Causes the player to look towards the given position.
+     *
+     * @param x x coordinate
+     * @param y y coordinate
+     * @param z z coordinate
+     * @param playerAnchor What part of the player should face the given position
+     */
+    void lookAt(double x, double y, double z, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor);
+
+    /**
+     * Causes the player to look towards the given position.
+     *
+     * @param position Position to look at in the player's current world
+     * @param playerAnchor What part of the player should face the given position
+     */
+    default void lookAt(@NotNull io.papermc.paper.math.Position position, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor) {
+        this.lookAt(position.x(), position.y(), position.z(), playerAnchor);
+    }
+
+    /**
+     * Causes the player to look towards the given entity.
+     *
+     * @param entity Entity to look at
+     * @param playerAnchor What part of the player should face the entity
+     * @param entityAnchor What part of the entity the player should face
+     */
+    void lookAt(@NotNull org.bukkit.entity.Entity entity, @NotNull io.papermc.paper.entity.LookAnchor playerAnchor, @NotNull io.papermc.paper.entity.LookAnchor entityAnchor);
+    // Paper end - Teleport API
+
     @NotNull
     @Override
     Spigot spigot();

paper-api/src/main/java/org/bukkit/event/player/PlayerTeleportEvent.java

@@ -13,8 +13,14 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
     private static final HandlerList handlers = new HandlerList();
     private TeleportCause cause = TeleportCause.UNKNOWN;
 
+    // Paper start - Teleport API
+    private boolean dismounted = true;
+    private final java.util.Set<io.papermc.paper.entity.TeleportFlag.Relative> teleportFlagSet;
+    // Paper end
+
     public PlayerTeleportEvent(@NotNull final Player player, @NotNull final Location from, @Nullable final Location to) {
         super(player, from, to);
+        teleportFlagSet = java.util.Collections.emptySet(); // Paper - Teleport API
     }
 
     public PlayerTeleportEvent(@NotNull final Player player, @NotNull final Location from, @Nullable final Location to, @NotNull final TeleportCause cause) {
@@ -23,6 +29,15 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
         this.cause = cause;
     }
 
+    // Paper start - Teleport API
+    @org.jetbrains.annotations.ApiStatus.Internal
+    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) {
+        super(player, from, to);
+        this.teleportFlagSet = teleportFlagSet;
+        this.cause = cause;
+    }
+    // Paper end
+
     /**
      * Gets the cause of this teleportation event
      *
@@ -88,6 +103,30 @@ public class PlayerTeleportEvent extends PlayerMoveEvent {
         UNKNOWN;
     }
 
+    // Paper start - Teleport API
+    /**
+     * Gets if the player will be dismounted in this teleportation.
+     *
+     * @return dismounted or not
+     * @deprecated dismounting on tp is no longer controlled by the server
+     */
+    @Deprecated(forRemoval = true)
+    public boolean willDismountPlayer() {
+        return this.dismounted;
+    }
+
+    /**
+     * Returns the relative teleportation flags used in this teleportation.
+     * This determines which axis the player will not lose their velocity in.
+     *
+     * @return an immutable set of relative teleportation flags
+     */
+    @NotNull
+    public java.util.Set<io.papermc.paper.entity.TeleportFlag.@NotNull Relative> getRelativeTeleportationFlags() {
+        return this.teleportFlagSet;
+    }
+    // Paper end
+
     @NotNull
     @Override
     public HandlerList getHandlers() {