(Finally) working event listeners

Author: Flamarine

README.md

@@ -17,8 +17,8 @@ versions of [Minecraft][minecraft] Java Edition.
 
 ## Features
 
-* A simple registry system for creating multiple simple items and blocks
-* Basic event listeners
+* A simple registry system for creating multiple simple items and blocks.
+* Basic event listeners. ~~*We like Mixin, but the less Mixin, the better, right?*~~
 
 ## Contributing
 

src/main/java/dev/intelligentcreations/mudrock/event/MudrockEventHandler.java

@@ -1,7 +1,9 @@
 package dev.intelligentcreations.mudrock.event;
 
+import dev.intelligentcreations.mudrock.Mudrock;
 import dev.intelligentcreations.mudrock.event.listeners.MudrockEventListener;
 
+import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -20,9 +22,18 @@ public class MudrockEventHandler
      * Register a listener.
      * The listener must implement one of the interfaces that extends {@link MudrockEventListener}.
      */
-    public void registerListener(MudrockEventListener listener)
+    public static <T extends MudrockEventListener> void registerListener(Class<T> listenerClass)
     {
-        listeners.add(listener);
+        try
+        {
+            T listener = listenerClass.getDeclaredConstructor().newInstance();
+            listeners.add(listener);
+            Mudrock.LOGGER.info("Registered listener " + listenerClass.getName());
+        } catch (NoSuchMethodException | InvocationTargetException | InstantiationException | IllegalAccessException e)
+        {
+            e.printStackTrace();
+            throw new RuntimeException("No valid constructor found for: " + listenerClass.getName());
+        }
     }
 
     /**