Paper/patches/unapplied/server/0121-PlayerTeleportEndGatewayEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 31 Dec 2016 21:44:50 -0500
Subject: [PATCH] PlayerTeleportEndGatewayEvent

Allows you to access the Gateway being used in a teleport event
Fix the offset used for player teleportation

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 8e127c36cbcb14d39de20217564ce1e722a57bcc..0432304139fada99dff884ebf8d08dbf9afc45c7 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1455,6 +1455,11 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
             PositionMoveRotation absolutePosition = PositionMoveRotation.calculateAbsolute(PositionMoveRotation.of(this), PositionMoveRotation.of(teleportTarget), teleportTarget.relatives());
             Location exit = (worldserver == null) ? null : CraftLocation.toBukkit(absolutePosition.position(), worldserver.getWorld(), absolutePosition.yRot(), absolutePosition.xRot());
             PlayerTeleportEvent tpEvent = new PlayerTeleportEvent(this.getBukkitEntity(), enter, exit, teleportTarget.cause());
+            // Paper start - gateway-specific teleport event
+            if (this.portalProcess != null && this.portalProcess.isSamePortal(((net.minecraft.world.level.block.EndGatewayBlock) net.minecraft.world.level.block.Blocks.END_GATEWAY)) && this.serverLevel().getBlockEntity(this.portalProcess.getEntryPosition()) instanceof net.minecraft.world.level.block.entity.TheEndGatewayBlockEntity theEndGatewayBlockEntity) {
+                tpEvent = new com.destroystokyo.paper.event.player.PlayerTeleportEndGatewayEvent(this.getBukkitEntity(), enter, exit, new org.bukkit.craftbukkit.block.CraftEndGateway(this.serverLevel().getWorld(), theEndGatewayBlockEntity));
+            }
+            // Paper end - gateway-specific teleport event
             Bukkit.getServer().getPluginManager().callEvent(tpEvent);
             Location newExit = tpEvent.getTo();
             if (tpEvent.isCancelled() || newExit == null) {