refactor collision handling and improve game state reset functionality

src/de/miaurizius/jgame2d/entity/Player.java

@@ -367,7 +367,6 @@ public class Player extends Entity {
         inventory.add(currentWeapon);
         inventory.add(currentShield);
         inventory.add(new KeyObj(panel));
-        inventory.add(new LanternObj(panel));
     }
     public void setDialogue() {
         dialogue[0][0] = "You are level " + level + " now!\nYou feel stronger!";