Update src/Player.java, src/Sandwich.java, src/Zombie.java files

src/Player.java

+import bagel.Image;
+import bagel.util.Point;
+/**
+ * a movable entity: player
+ */
+public class Player{
+    /**
+     * the player's image displayed in the window
+     */
+    private final Image image;
+    /**
+     * render position of the player in the window
+     */
+    private Point pos;
+    /**
+     * Player's current energy value
+     */
+    private int energy;
+    /**
+     * constructor
+     * @param x abscissa
+     * @param y ordinate
+     */
+    public Player(double x, double y,int energy) {
+        this.image = new Image("res/images/player.png");
+        this.pos = new Point(x,y);
+        this.energy = energy;
+    }
+    /**
+     * draw player on the background
+     */
+    public void draw() {
+        image.drawFromTopLeft(pos.x, pos.y);
+    }
+}

src/Sandwich.java

+import bagel.Image;
+import bagel.util.Point;
+/**
+ *  a stationary entity: sandwich
+ */
+public class Sandwich{
+    /**
+     * the sandwich's image displayed in the window
+     */
+    private Image image;
+    /**
+     * a Point object representing the position of the sandwich
+     */
+    private Point pos;
+    /**
+     * constructor
+     * @param x abscissa
+     * @param y ordinate
+     */
+    public Sandwich(double x, double y){
+        this.image = new Image("res/images/sandwich.png");
+        this.pos = new Point(x,y);
+    }
+    /**
+     * draw sandwich on the background
+     */
+    public void draw() {
+        image.drawFromTopLeft(pos.x, pos.y);
+    }
+}

src/Zombie.java

+import bagel.Image;
+import bagel.util.Point;
+/**
+ *  a stationary entity: zombie
+ */
+public class Zombie{
+    /**
+     * the zombie's image displayed in the window
+     */
+    private Image image;
+    /**
+     * a Point object representing the position of the zombie
+     */
+    private Point pos;
+    /**
+     * constructor
+     * @param x abscissa
+     * @param y ordinate
+     */
+    public Zombie(double x, double y){
+        this.image = new Image("res/images/zombie.png");
+        this.pos = new Point(x,y);
+    }
+    /**
+     * draw zombie on the background
+     */
+    public void draw() {
+        image.drawFromTopLeft(pos.x, pos.y);
+    }
+}