added concept for monsters

src/de/miaurizius/jgame2d/core/GamePanel.java

@@ -48,6 +48,7 @@ public class GamePanel extends JPanel implements Runnable {
     public Player player = new Player(this, keyH);
     public Entity[] obj = new Entity[10];
     public Entity[] npc = new Entity[10];
+    public Entity[] monster = new Entity[20];
     ArrayList<Entity> entityList = new ArrayList<>();
 
     // GAME STATE
@@ -64,7 +65,7 @@ public class GamePanel extends JPanel implements Runnable {
     public void setupGame() {
         assetSetter.setObject();
         assetSetter.setNPC();
-        //playMusic(0); //Play main theme
+        assetSetter.setMonster();
         gameState = GameState.TITLE;
     }
 
@@ -107,6 +108,7 @@ public class GamePanel extends JPanel implements Runnable {
             case PLAY:
                 player.update();
                 for(Entity entity : npc) if(entity != null) entity.update();
+                for(Entity entity : monster) if(entity != null) entity.update();
                 break;
             case PAUSE:
                 break;
@@ -134,6 +136,7 @@ public class GamePanel extends JPanel implements Runnable {
         entityList.add(player);
         for(Entity entity : npc) if(entity != null) entityList.add(entity);
         for(Entity entity : obj) if(entity != null) entityList.add(entity);
+        for(Entity entity : monster) if(entity != null) entityList.add(entity);
         entityList.sort(Comparator.comparingInt(o -> o.worldY));
         for(Entity entity : entityList) entity.draw(graphics2d);
         entityList.clear();