XNA 4.0 Game Development by Example Beginner's Guide

Time for action – building the Gemstone class

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

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

3. Modify the declaration of the Gemstone class to make the class public, and derive it from the GameObject class:

   public class Gemstone : GameObject

4. Add a constructor for the Gemstone class:

   #region Constructor public Gemstone(ContentManager Content, int cellX, int cellY) { worldLocation.X = TileMap.TileWidth * cellX; worldLocation.Y = TileMap.TileHeight * cellY; frameWidth = TileMap.TileWidth; frameHeight = TileMap.TileHeight; animations.Add("idle", new ...