simplified duplicated code

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

@@ -1,23 +1,41 @@
 package de.miaurizius.jgame2d.entity;
 
+import de.miaurizius.jgame2d.core.Boot;
 import de.miaurizius.jgame2d.core.Direction;
+import de.miaurizius.jgame2d.core.GamePanel;
+import de.miaurizius.jgame2d.core.Utility;
 
+import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.logging.Level;
 
 public class Entity {
 
+    GamePanel panel;
     public int worldX, worldY;
     public int speed;
-
     public BufferedImage up1, up2, down1, down2, left1, left2, right1, right2;
     public Direction direction;
-
     public int spriteCounter = 0;
     public int spriteNum = 1;
-
-    public Rectangle solidArea;
+    public Rectangle solidArea = new Rectangle(0, 0, 48, 48);
     public int solidAreaDefaultX,  solidAreaDefaultY;
     public boolean collisionOn = false;
 
+    public Entity(GamePanel panel) {
+        this.panel = panel;
+    }
+
+    public BufferedImage initEntitySprites(String name) {
+        try {
+            return Utility.scaleImage(ImageIO.read(new FileInputStream("assets/" + name + ".png")), panel.tileSize, panel.tileSize);
+        } catch (IOException e) {
+            Boot.logger.log(Level.SEVERE, "Could not load entity-image", e);
+        }
+        return null;
+    }
+
 }