Game Programming Class6

Physics

http://box2d.org/

c# Box2D https://code.google.com/p/box2dx/

https://github.com/d-snp/Farseer-Physics

http://farseerphysics.codeplex.com/

http://www.mataliphysics.com/

Protability

Separation of Concerns

• https://msdn.microsoft.com/en-us/library/ee658124.aspx
• http://en.wikipedia.org/wiki/Separation_of_concerns

Single Responsibility Principle

• http://en.wikipedia.org/wiki/Single_responsibility_principle
• http://www.butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod

PacMan Class Simplified and Generalized

<csharp> public enum PacManState { Spawning, Still, Chomping, SuperPacMan }

   public class PacMan 
   {

       protected PacManState _state;
       public PacManState State
       {
           get { return _state; }
           set
           {
               if (_state != value)
               {
                   this.Log(string.Format("{0} was: {1} now {2}", this.ToString(), _state, value));
                   
                   _state = value;
               }
           }
       }

       public PacMan()
       {
           
           //Set default state will call notify so make sure this.Ghosts is intitialized first
           this.State = PacManState.Still;

       }

       //Extra method for logging state change
       public virtual void Log(string s)
       {
           //nothing
           Console.WriteLine(s);
       }
   }

</csharp>

Simple Animation

what extra fields do we need for animation?

http://create.msdn.com/en-US/education/catalog/sample/sprite_sheet

Platformer Example

Show platformer starter kit

http://msdn.microsoft.com/en-us/library/dd254918(v=xnagamestudio.31).aspx

simple and elegant but not that flexible

Animation Classes

Way too many classes for me to type here

• PacMan States
• PacMan Dying Animation
• PacMan Eating

IntroAnimation Project IntroAnimation.zip

Complicated but flexible

• DrawableAnimatableSprite.cs
• CelAnimationManager.cs

Homework

Shooting Game

• must use game components
• must be multiplayer (both on keyboard or multiple game pads) don't use networking
• must be able to shoot at each other or work together to shoot enemies
• include shot manager and or shot manager