From 68a52c71bfe80ee53360df8e1eb5f806523e9eea Mon Sep 17 00:00:00 2001
From: tastybento <tastybento@wasteofplastic.com>
Date: Wed, 20 Mar 2019 22:46:13 -0700
Subject: [PATCH] Prevents dragon eggs from teleporting outside of protection
 zone

https://github.com/BentoBoxWorld/BentoBox/issues/558
---
 .../protection/BlockInteractionListener.java  | 22 +++++++++++++++++++
 .../LiquidsFlowingOutListener.java            |  1 +
 2 files changed, 23 insertions(+)

diff --git a/src/main/java/world/bentobox/bentobox/listeners/flags/protection/BlockInteractionListener.java b/src/main/java/world/bentobox/bentobox/listeners/flags/protection/BlockInteractionListener.java
index 390db2490..e582c34b0 100644
--- a/src/main/java/world/bentobox/bentobox/listeners/flags/protection/BlockInteractionListener.java
+++ b/src/main/java/world/bentobox/bentobox/listeners/flags/protection/BlockInteractionListener.java
@@ -2,12 +2,14 @@ package world.bentobox.bentobox.listeners.flags.protection;
 
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.block.Block;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Event;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.block.BlockBreakEvent;
+import org.bukkit.event.block.BlockFromToEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 
 import world.bentobox.bentobox.api.flags.FlagListener;
@@ -276,4 +278,24 @@ public class BlockInteractionListener extends FlagListener {
     public void onBlockBreak(final BlockBreakEvent e) {
         checkClickedBlock(e, e.getPlayer(), e.getBlock().getLocation(), e.getBlock().getType());
     }
+
+    /**
+     * Prevents dragon eggs from flying out of an island's protected space
+     * @param e - event
+     */
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onDragonEggTeleport(BlockFromToEvent e) {
+        Block from = e.getBlock();
+        if (!from.getType().equals(Material.DRAGON_EGG) || !getIWM().inWorld(from.getLocation())) {
+            return;
+        }
+        // If egg starts in a protected island...
+        getIslands().getProtectedIslandAt(from.getLocation()).ifPresent(fromIsland -> {
+            // Cancel if toIsland is not fromIsland or if there is no protected island there
+            // This protects against eggs dropping into adjacent islands, e.g. island distance and protection range are equal
+            e.setCancelled(getIslands().getProtectedIslandAt(e.getToBlock().getLocation()).map(toIsland -> {
+                return toIsland != fromIsland;
+            }).orElse(true));
+        });
+    }
 }
diff --git a/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/LiquidsFlowingOutListener.java b/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/LiquidsFlowingOutListener.java
index 116e7d1ca..2d0be055d 100644
--- a/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/LiquidsFlowingOutListener.java
+++ b/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/LiquidsFlowingOutListener.java
@@ -40,4 +40,5 @@ public class LiquidsFlowingOutListener extends FlagListener {
             e.setCancelled(true);
         }
     }
+
 }