From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Thu, 14 Jan 2021 16:48:10 -0600
Subject: [PATCH] Fix stuck in portals


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index de7c199c0df87a1c1a0157328fa52351f74a0d3d..540c7b650deefa4a1a0e4f86650d9f3c56091566 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1272,6 +1272,7 @@ public class ServerPlayer extends Player {
                 playerlist.sendPlayerPermissionLevel(this);
                 worldserver1.removePlayerImmediately(this, Entity.RemovalReason.CHANGED_DIMENSION);
                 this.unsetRemoved();
+                this.portalPos = io.papermc.paper.util.MCUtil.toBlockPosition(exit); // Purpur
 
                 // CraftBukkit end
                 this.setServerLevel(worldserver);
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index e45f4570ef8334f319dcee39e2f343b91da62fce..36e9b635f81f2799cd210075bced9e976a90a351 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -3060,12 +3060,15 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
         return Vec3.directionFromRotation(this.getRotationVector());
     }
 
+    public BlockPos portalPos = BlockPos.ZERO; // Purpur
     public void handleInsidePortal(BlockPos pos) {
         if (this.isOnPortalCooldown()) {
+            if (!(level().purpurConfig.playerFixStuckPortal && this instanceof Player && !pos.equals(portalPos))) // Purpur
             this.setPortalCooldown();
         } else if (level().purpurConfig.entitiesCanUsePortals || this instanceof ServerPlayer) { // Purpur
             if (!this.level().isClientSide && !pos.equals(this.portalEntrancePos)) {
                 this.portalEntrancePos = pos.immutable();
+                portalPos = BlockPos.ZERO; // Purpur
             }
 
             this.isInsidePortal = true;
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 14e708b579fc8cbb648fc01d96439a05a6abe239..c72af60345ac9704118ff9d19295d1a663a1e985 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -335,6 +335,7 @@ public class PurpurWorldConfig {
     public int playerDeathExpDropMax = 100;
     public boolean teleportIfOutsideBorder = false;
     public boolean totemOfUndyingWorksInInventory = false;
+    public boolean playerFixStuckPortal = false;
     private void playerSettings() {
         if (PurpurConfig.version < 19) {
             boolean oldVal = getBoolean("gameplay-mechanics.player.idle-timeout.mods-target", idleTimeoutTargetPlayer);
@@ -352,6 +353,7 @@ public class PurpurWorldConfig {
         playerDeathExpDropMax = getInt("gameplay-mechanics.player.exp-dropped-on-death.maximum", playerDeathExpDropMax);
         teleportIfOutsideBorder = getBoolean("gameplay-mechanics.player.teleport-if-outside-border", teleportIfOutsideBorder);
         totemOfUndyingWorksInInventory = getBoolean("gameplay-mechanics.player.totem-of-undying-works-in-inventory", totemOfUndyingWorksInInventory);
+        playerFixStuckPortal = getBoolean("gameplay-mechanics.player.fix-stuck-in-portal", playerFixStuckPortal);
     }
 
     private static boolean projectileDespawnRateSettingsMigrated = false;