Paper/patches/server/0817-Add-back-EntityPortalExitEvent.patch

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 4f164f238177b5e2b18c76b7cc14596ec93409d1..e17bda0d13bae337cfad5ae31b118aa7a85499fc 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -3181,6 +3181,25 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
             } else {
                 // CraftBukkit start
                 worldserver = shapedetectorshape.world;
+
+                // Paper start - Call EntityPortalExitEvent
+                CraftEntity bukkitEntity = this.getBukkitEntity();
+                Vec3 position = shapedetectorshape.pos;
+                float yaw = shapedetectorshape.yRot;
+                float pitch = bukkitEntity.getLocation().getPitch(); // Keep entity pitch as per moveTo line below
+                Vec3 velocity = shapedetectorshape.speed;
+                org.bukkit.event.entity.EntityPortalExitEvent event = new org.bukkit.event.entity.EntityPortalExitEvent(bukkitEntity,
+                    bukkitEntity.getLocation(), new Location(worldserver.getWorld(), position.x, position.y, position.z, yaw, pitch),
+                    bukkitEntity.getVelocity(), org.bukkit.craftbukkit.util.CraftVector.toBukkit(shapedetectorshape.speed));
+                if (event.callEvent() && event.getTo() != null && this.isAlive()) {
+                    worldserver = ((CraftWorld) event.getTo().getWorld()).getHandle();
+                    position = new Vec3(event.getTo().getX(), event.getTo().getY(), event.getTo().getZ());
+                    yaw = event.getTo().getYaw();
+                    pitch = event.getTo().getPitch();
+                    velocity = org.bukkit.craftbukkit.util.CraftVector.toNMS(event.getAfter());
+                }
+                // Paper end
+
                 this.unRide();
                 // CraftBukkit end
 
@@ -3194,8 +3213,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
 
                 if (entity != null) {
                     entity.restoreFrom(this);
-                    entity.moveTo(shapedetectorshape.pos.x, shapedetectorshape.pos.y, shapedetectorshape.pos.z, shapedetectorshape.yRot, entity.getXRot());
-                    entity.setDeltaMovement(shapedetectorshape.speed);
+                    entity.moveTo(position.x, position.y, position.z, yaw, pitch); // Paper - use EntityPortalExitEvent values
+                    entity.setDeltaMovement(velocity); // Paper - use EntityPortalExitEvent values
                     worldserver.addDuringTeleport(entity);
                     if (worldserver.getTypeKey() == DimensionType.END_LOCATION) { // CraftBukkit
                         ServerLevel.makeObsidianPlatform(worldserver, this); // CraftBukkit