Added importing via the editor

src/main/java/engine/Entity.java

@@ -4,6 +4,7 @@
 
 public abstract class Entity {
     public int x = 0, y = 0;
+    public int width = 0, height = 0;
     public double rotation = 0;
     public Point rotatePos;
 

src/main/java/engine/mechanics/Bossbar.java

@@ -9,7 +9,7 @@
 import static engine.rendering.Graphics.g;
 
 public class Bossbar extends Entity {
-    private int width, height, maxValue = 100, currentValue = 50;
+    private int maxValue = 100, currentValue = 50;
     private BufferedImage backgroundImage, barImage, overlayImage;
     private Color backgroundColor = Color.GRAY, barColor = Color.green;
 

src/main/java/engine/mechanics/Button.java

@@ -18,8 +18,6 @@ public class Button extends Entity {
     private final Mouse mouseListener;
     private final Hitbox h;
     private final Map<MouseButtons, Predicate<MouseEvent>> events = new EnumMap<>(MouseButtons.class);
-    private final int width;
-    private final int height;
     private boolean inside;
     private Color color = Color.black;
     private Color hoverColor = Color.darkGray;

src/main/java/engine/mechanics/EntityList.java

@@ -12,8 +12,6 @@ public class EntityList extends Entity {
      * This is an entity list. It can be used like a <code>ArrayList</code>. The advantage is, that you can add it to
      * the entity list of a scene.
      */
-    public EntityList() {
-    }
 
     @Override
     public void init() {

src/main/java/engine/mechanics/Grid.java

@@ -9,8 +9,6 @@
 public class Grid extends Entity {
     private boolean show = false;
     private Color color;
-    private int width;
-    private int height;
     private int row;
     private int column;
 

src/main/java/engine/mechanics/ImportLvl.java

@@ -0,0 +1,57 @@
+package engine.mechanics;
+
+import engine.Entity;
+
+import java.io.*;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.Scanner;
+
+public class ImportLvl {
+
+    public static EntityList importLvl(String path) {
+        Scanner reader = null;
+        EntityList entityList = new EntityList();
+        try {
+            File f = new File((ImportLvl.class.getResource(path)).getPath());
+            reader = new Scanner(f);
+
+            while (reader.hasNextLine()) {
+                Entity entity;
+                String input = reader.nextLine();
+                String className, x, y, width, height, params;
+                className = input.split("[~]")[0];
+                x = input.split("[~]")[1];
+                y = input.split("[~]")[2];
+                width = input.split("[~]")[3];
+                height = input.split("[~]")[4];
+                params = input.split("[~]")[5];
+
+                if (!params.equals("NONE")) {
+                    Class cl = Class.forName(className);
+                    Constructor con = cl.getConstructor(String.class);
+                    entity = (Entity) con.newInstance(params);
+                    entity.x = Integer.parseInt(x);
+                    entity.y = Integer.parseInt(y);
+                    entity.width = Integer.parseInt(width);
+                    entity.height = Integer.parseInt(height);
+
+                } else {
+                    Class cl = Class.forName(className);
+                    Constructor con = cl.getConstructor();
+                    entity = (Entity) con.newInstance();
+                    entity.x = Integer.parseInt(x);
+                    entity.y = Integer.parseInt(y);
+                    entity.width = Integer.parseInt(width);
+                    entity.height = Integer.parseInt(height);
+                }
+
+                entityList.add(entity);
+
+            }
+        } catch (FileNotFoundException | ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InstantiationException | InvocationTargetException e) {
+            e.printStackTrace();
+        }
+        return entityList;
+    }
+}

src/main/java/engine/mechanics/Slider.java

@@ -19,7 +19,6 @@ public class Slider extends Entity {
     private int sliderHeight = 20;
     private double sliderPosition = 0;
     private boolean slide = false;
-
     private int sliderX;
     private int sliderY;
     private final Mouse mouseListener;

src/main/java/engine/mechanics/TextBox.java

@@ -14,8 +14,6 @@ public class TextBox extends Entity {
     private final Hitbox h;
     private TextField textField;
     private String displayText = "";
-    private int width;
-    private int height;
     private boolean selected = false;
     private Color fontColor = Color.BLACK;
     private Color borderColor = Color.BLACK;

src/main/java/engine/mechanics/TickBox.java

@@ -12,7 +12,6 @@
 
 public class TickBox extends Entity {
 
-    private int width, height;
     private Color borderColor = Color.black;
     private Color tickColor = Color.green;
     private Hitbox clickArea;