Prevent boats from destroying lily pads

src/de/anura/core/Setup.java

@@ -71,6 +71,7 @@ public class Setup {
         new InvClick(Core.getMainClass());
         new BlockSpread(Core.getMainClass());
         new DropItem(Core.getMainClass());
+        new EntityChangeBlock(Core.getMainClass());
     }
 
     public static void setupClasses() {

src/de/anura/core/events/EntityChangeBlock.java

@@ -0,0 +1,27 @@
+package de.anura.core.events;
+
+import de.anura.core.API.Core;
+import de.anura.core.AnuraCore;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityChangeBlockEvent;
+
+public class EntityChangeBlock implements Listener {
+    
+    public EntityChangeBlock(AnuraCore plugin) {
+        plugin.getServer().getPluginManager().registerEvents(this, plugin);
+    }
+    
+    @EventHandler
+    public void onEntityChangeBlock(EntityChangeBlockEvent event) {
+        if (event.getEntityType() == EntityType.BOAT && event.getEntity().getPassenger() instanceof Player && Core.getMainClass().getConfig().getBoolean("no-change-blocks")) {
+            Player P = (Player) event.getEntity().getPassenger();
+            if (!P.hasPermission("core.rules.blocks.break")) {
+                event.setCancelled(true);
+                P.sendBlockChange(event.getBlock().getLocation(), event.getBlock().getType(), event.getBlock().getData());
+            }
+        }
+    }
+}