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path: root/patches/server/0578-Add-back-EntityPortalExitEvent.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 16 May 2021 09:39:46 -0700
Subject: [PATCH] Add back EntityPortalExitEvent


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index fe9cdd104d6203233a90068b55e0876be4964afe..88d3b1997bba632c5746d295bb39095f5d328369 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -3491,6 +3491,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
             if (!this.isRemoved()) {
                 // CraftBukkit start
                 PositionMoveRotation absolutePosition = PositionMoveRotation.calculateAbsolute(PositionMoveRotation.of(this), PositionMoveRotation.of(teleportTarget), teleportTarget.relatives());
+                Vec3 velocity = absolutePosition.deltaMovement(); // Paper
                 Location to = CraftLocation.toBukkit(absolutePosition.position(), teleportTarget.newLevel().getWorld(), absolutePosition.yRot(), absolutePosition.xRot());
                 // Paper start - gateway-specific teleport event
                 final EntityTeleportEvent teleEvent;
@@ -3507,7 +3508,29 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
                 if (!to.equals(teleEvent.getTo())) {
                     to = teleEvent.getTo();
                     teleportTarget = new TeleportTransition(((CraftWorld) to.getWorld()).getHandle(), CraftLocation.toVec3D(to), Vec3.ZERO, to.getYaw(), to.getPitch(), teleportTarget.missingRespawnBlock(), teleportTarget.asPassenger(), Set.of(), teleportTarget.postTeleportTransition(), teleportTarget.cause());
+                    // Paper start - Call EntityPortalExitEvent
+                    velocity = Vec3.ZERO;
                 }
+                if (this.portalProcess != null) { // if in a portal
+                    CraftEntity bukkitEntity = this.getBukkitEntity();
+                    org.bukkit.event.entity.EntityPortalExitEvent event = new org.bukkit.event.entity.EntityPortalExitEvent(
+                        bukkitEntity,
+                        bukkitEntity.getLocation(), to.clone(),
+                        bukkitEntity.getVelocity(), org.bukkit.craftbukkit.util.CraftVector.toBukkit(velocity)
+                    );
+                    event.callEvent();
+
+                    // Only change the target if actually needed, since we reset relative flags
+                    if (!event.isCancelled() && event.getTo() != null && (!event.getTo().equals(event.getFrom()) || !event.getAfter().equals(event.getBefore()))) {
+                        to = event.getTo().clone();
+                        velocity = org.bukkit.craftbukkit.util.CraftVector.toNMS(event.getAfter());
+                        teleportTarget = new TeleportTransition(((CraftWorld) to.getWorld()).getHandle(), CraftLocation.toVec3D(to), velocity, to.getYaw(), to.getPitch(), teleportTarget.missingRespawnBlock(), teleportTarget.asPassenger(), Set.of(), teleportTarget.postTeleportTransition(), teleportTarget.cause());
+                    }
+                }
+                if (this.isRemoved()) {
+                    return null;
+                }
+                // Paper end - Call EntityPortalExitEvent
                 // CraftBukkit end
                 ServerLevel worldserver1 = teleportTarget.newLevel();
                 boolean flag = worldserver1.dimension() != worldserver.dimension();