Set minimum portal search radius to 8. Added config option.

https://github.com/BentoBoxWorld/BentoBox/issues/1747

src/main/java/world/bentobox/bentobox/Settings.java

@@ -248,6 +248,11 @@ public class Settings implements ConfigObject {
     @ConfigEntry(path = "island.clear-radius", since = "1.6.0")
     private int clearRadius = 5;
 
+    @ConfigComment("Minimum nether portal search radius. This should not be less that 8 otherwise duplicate")
+    @ConfigComment("portals can occur")
+    @ConfigEntry(path = "island.portal-search-radius", since = "1.17.0")
+    private int minPortalSearchRadius = 8;
+
     @ConfigComment("Number of blocks to paste per tick when pasting blueprints.")
     @ConfigComment("Smaller values will help reduce noticeable lag but will make pasting take slightly longer.")
     @ConfigComment("On the contrary, greater values will make pasting take less time, but this benefit is quickly severely impacted by the")
@@ -778,27 +783,27 @@ public class Settings implements ConfigObject {
     }
 
 
-	/**
+    /**
      * Method Settings#getPlayerHeadCacheTime returns the playerHeadCacheTime of this object.
      *
      * @return the playerHeadCacheTime (type long) of this object.
      * @since 1.14.1
      */
     public long getPlayerHeadCacheTime()
-	{
-		return playerHeadCacheTime;
-	}
+    {
+        return playerHeadCacheTime;
+    }
 
 
-	/**
+    /**
      * Method Settings#setPlayerHeadCacheTime sets new value for the playerHeadCacheTime of this object.
      * @param playerHeadCacheTime new value for this object.
      * @since 1.14.1
      */
     public void setPlayerHeadCacheTime(long playerHeadCacheTime)
-	{
-		this.playerHeadCacheTime = playerHeadCacheTime;
-	}
+    {
+        this.playerHeadCacheTime = playerHeadCacheTime;
+    }
 
 
     /**
@@ -871,4 +876,18 @@ public class Settings implements ConfigObject {
     {
         this.ticksBetweenCalls = ticksBetweenCalls;
     }
+
+    /**
+     * @return the minPortalSearchRadius
+     */
+    public int getMinPortalSearchRadius() {
+        return minPortalSearchRadius;
+    }
+
+    /**
+     * @param minPortalSearchRadius the minPortalSearchRadius to set
+     */
+    public void setMinPortalSearchRadius(int minPortalSearchRadius) {
+        this.minPortalSearchRadius = minPortalSearchRadius;
+    }
 }

src/main/java/world/bentobox/bentobox/listeners/PortalTeleportationListener.java

@@ -424,7 +424,8 @@ public class PortalTeleportationListener implements Listener {
         // Find max x or max z
         int x = Math.abs(i.getProtectionCenter().getBlockX() - e.getFrom().getBlockX());
         int z = Math.abs(i.getProtectionCenter().getBlockZ() - e.getFrom().getBlockZ());
-        int diff = i.getProtectionRange() - Math.max(x, z);
+        int diff = Math.max(plugin.getSettings().getMinPortalSearchRadius(), i.getProtectionRange() - Math.max(x, z));
+        BentoBox.getInstance().logDebug("Search radius = " + diff);
         if (diff > 0 && diff < 128) {
             e.setSearchRadius(diff);
         }

src/main/resources/config.yml

@@ -1,4 +1,4 @@
-# BentoBox v1.14.1-SNAPSHOT-LOCAL configuration file.
+# BentoBox {$version} configuration file.
 # 
 # This configuration file contains settings that mainly apply to or manage the following elements:
 #  * Data storage
@@ -58,6 +58,14 @@ general:
     # This helps prevent issues if the server crashes.
     # Data is also saved at important points in the game.
     backup-period: 5
+    # How many players will be saved in one tick. Default is 200
+    # Reduce if you experience lag while saving.
+    # Do not set this too low or data might get lost!
+    max-saved-players-per-tick: 20
+    # How many islands will be saved in one tick. Default is 200
+    # Reduce if you experience lag while saving.
+    # Do not set this too low or data might get lost!
+    max-saved-islands-per-tick: 20
     # Enable SSL connection to MongoDB, MariaDB, MySQL and PostgreSQL databases.
     # Added since 1.12.0.
     use-ssl: false
@@ -75,7 +83,7 @@ general:
   # Add other fake player names here if required
   # /!\ This feature is experimental and might not work as expected or might not work at all.
   fakeplayers:
-    - '[CoFH]'
+  - '[CoFH]'
 panel:
   # Toggle whether panels should be closed or not when the player clicks anywhere outside of the inventory view.
   close-on-click-outside: true
@@ -161,6 +169,10 @@ island:
   # Be careful not to make this too big. Does not cover standard nether or end teleports.
   # Added since 1.6.0.
   clear-radius: 5
+  # Minimum nether portal search radius. This should not be less that 8 otherwise duplicate
+  # can occur.
+  # Added since 1.17.0.
+  portal-search-radius: 8
   # Number of blocks to paste per tick when pasting blueprints.
   # Smaller values will help reduce noticeable lag but will make pasting take slightly longer.
   # On the contrary, greater values will make pasting take less time, but this benefit is quickly severely impacted by the