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 d1a4eca112ad8698aa9025cec1b38bca01805e3f..c64b2386f35c55e3484df2d193f712a1728dc745 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1680,6 +1680,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
                 worldserver1.removePlayerImmediately(this, Entity.RemovalReason.CHANGED_DIMENSION);
                 this.unsetRemoved();
                 // CraftBukkit end
+                this.portalPos = io.papermc.paper.util.MCUtil.toBlockPosition(exit); // Purpur - Fix stuck in portals
                 this.setServerLevel(worldserver);
                 this.connection.internalTeleport(PositionMoveRotation.of(teleportTarget), teleportTarget.relatives()); // CraftBukkit - use internal teleport without event
                 this.connection.resetPosition();
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 49af66a9f5e0fcc0993fdfb8095645e48c17bd68..0b936bcf09bb12b0a29a1ef755df1a24604f0904 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -3428,14 +3428,17 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
         return Vec3.directionFromRotation(this.getRotationVector());
     }
 
+    public BlockPos portalPos = BlockPos.ZERO; // Purpur
     public void setAsInsidePortal(Portal portal, BlockPos pos) {
         if (this.isOnPortalCooldown()) {
+            if (!(level().purpurConfig.playerFixStuckPortal && this instanceof Player && !pos.equals(this.portalPos))) // Purpur - Fix stuck in portals
             this.setPortalCooldown();
         } else if (this.level.purpurConfig.entitiesCanUsePortals || this instanceof ServerPlayer) { // Purpur - Entities can use portals
             if (this.portalProcess != null && this.portalProcess.isSamePortal(portal)) {
                 if (!this.portalProcess.isInsidePortalThisTick()) {
                     this.portalProcess.updateEntryPosition(pos.immutable());
                     this.portalProcess.setAsInsidePortalThisTick(true);
+                    this.portalPos = BlockPos.ZERO; // Purpur - Fix stuck in portals
                 }
             } else {
                 this.portalProcess = new PortalProcessor(portal, pos.immutable());
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 63b38c9c0862a5bd00468024015e62d0485b2619..b700c52f74cbae8f99bc721b9b594845a1c1ee6d 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -325,6 +325,7 @@ 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);
@@ -340,6 +341,7 @@ 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);
     }
 
     public boolean silkTouchEnabled = false;