// API Events
public class NPCCreateEvent extends Event {
   private final String npcName;
   private final String modelName;
   private final Location location;
 
   /**
    * Called when an NPC is created
    * @param npcName Name of the NPC
    * @param modelName ModelEngine model name
    * @param location Spawn location
    */
   public NPCCreateEvent(String npcName, String modelName, Location location) {
       this.npcName = npcName;
       this.modelName = modelName;
       this.location = location;
   }
 
   public String getNPCName() { return npcName; }
   public String getModelName() { return modelName; }
   public Location getLocation() { return location; }
}

public class NPCDeleteEvent extends Event {
   private final String npcName;
 
   /**
    * Called when an NPC is deleted
    * @param npcName Name of the deleted NPC
    */
   public NPCDeleteEvent(String npcName) {
       this.npcName = npcName;
   }
 
   public String getNPCName() { return npcName; }
}

public class NPCRightClickEvent extends Event {
   private final String npcName;
   private final Player player;
 
   /**
    * Called when a player right-clicks an NPC
    * @param npcName Name of the clicked NPC
    * @param player Player who clicked
    */
   public NPCRightClickEvent(String npcName, Player player) {
       this.npcName = npcName;
       this.player = player;
   }
 
   public String getNPCName() { return npcName; }
   public Player getPlayer() { return player; }
}

public class NPCLeftClickEvent extends Event {
   private final String npcName;
   private final Player player;
 
   /**
    * Called when a player left-clicks an NPC
    * @param npcName Name of the clicked NPC
    * @param player Player who clicked
    */
   public NPCLeftClickEvent(String npcName, Player player) {
       this.npcName = npcName;
       this.player = player;
   }
 
   public String getNPCName() { return npcName; }
   public Player getPlayer() { return player; }
}

// Example Usage:
public class NPCEventListener implements Listener {

   @EventHandler
   public void onNPCCreate(NPCCreateEvent event) {
       String npcName = event.getNPCName();
       String modelName = event.getModelName();
       Location location = event.getLocation();
   
       // Handle NPC creation...
   }
 
   @EventHandler
   public void onNPCDelete(NPCDeleteEvent event) {
       String npcName = event.getNPCName();
   
       // Handle NPC deletion...
   }
 
   @EventHandler
   public void onNPCRightClick(NPCRightClickEvent event) {
       Player player = event.getPlayer();
       String npcName = event.getNPCName();
   
       // Handle right-click...
   }
 
   @EventHandler
   public void onNPCLeftClick(NPCLeftClickEvent event) {
       Player player = event.getPlayer();
       String npcName = event.getNPCName();
   
       // Handle left-click...
   }
}