Move killer methods below constructor

src/main/java/nl/tudelft/jpacman/level/Player.java

@@ -39,23 +39,6 @@ public class Player extends Unit {
      */
     private Unit killer;
 
-    /**
-     * Returns the cause of death.
-     *
-     * @return <code>Unit</code> iff the player died by collision.
-     */
-    public Unit getKiller() { 
-        return killer;
-    }
-
-    /**
-     * Sets the cause of death.
-     *
-     * @param killer is set if collision with ghost happens.
-     */
-    public void setKiller(Unit killer) { 
-        this.killer =  killer; 
-    }
     /**
      * Creates a new player with a score of 0 points.
      *
@@ -99,6 +82,24 @@ public void setAlive(boolean isAlive) {
         this.killer = null;
     }
 
+    /**
+     * Returns the unit that caused the death of Pac-Man.
+     *
+     * @return <code>Unit</code> iff the player died by collision, otherwise <code>null</code>.
+     */
+    public Unit getKiller() {
+        return killer;
+    }
+
+    /**
+     * Sets the cause of death.
+     *
+     * @param killer is set if collision with ghost happens.
+     */
+    public void setKiller(Unit killer) {
+        this.killer =  killer;
+    }
+
     /**
      * Returns the amount of points accumulated by this player.
      *