subclass correctly

src/main/java/edu/caltech/cs001/SparklerEvent.java

@@ -10,7 +10,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerBucketEmptyEvent;
 import org.bukkit.plugin.java.JavaPlugin;
 
-public class SparklerEvent implements Listener {
+public class SparklerEvent extends CaltechMinecraftEvent {
     private void onBucketEmpty(PlayerBucketEmptyEvent event) {
         Block block = event.getBlock();
         if (isPond(block)) {

src/main/java/edu/caltech/cs001/TurtleSpawnerEvent.java

@@ -10,11 +10,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerBucketEmptyEvent;
 import org.bukkit.plugin.java.JavaPlugin;
 
-public class TurtleSpawnerEvent implements Listener {
-    public TurtleSpawnerEvent(JavaPlugin plugin) {
-        this.plugin = plugin;
-    }
-
+public class TurtleSpawnerEvent extends CaltechMinecraftEvent {
     /**
      * Checks if the block `centerBlock` is a water block in the middle of a pond of Material.STONE.
      *