XNA 4.0 Game Development by Example Beginner's Guide

Time for action – summoning up the zombies

1. Add a new class called Enemy to the Gemstone Hunter project.
2. Add the following using directives to the Enemy class:

   using Microsoft.Xna.Framework;
   using Microsoft.Xna.Framework.Content;
   using Microsoft.Xna.Framework.Graphics;
   using Tile_Engine;

3. Modify the class declaration for the Enemy class to make it public and derive it from the GameObject class:

   public class Enemy : GameObject

4. Add declarations for the Enemy class:

   private Vector2 fallSpeed = new Vector2(0, 20);
   private float walkSpeed = 60.0f;
   private bool facingLeft = true;
   public bool Dead = false;

5. Add a constructor for the Enemy class:

   #region Constructor public Enemy(ContentManager content, int cellX, int cellY) { animations.Add("idle", new AnimationStrip( ...