Though… I can't understand why you didn't log into your account to post the links. :D The more posts you make, the sooner your karma goes up, and the sooner you'll be able to post links on your own without trouble.

http://gatogrisgames.com/wp-content/uploads/2014/04/promo01.png
http://gatogrisgames.com/wp-content/uploads/2014/04/promo02.png
http://gatogrisgames.com/wp-content/uploads/2014/04/promo03.png
http://gatogrisgames.com/wp-content/uploads/2014/04/promo04.png
http://gatogrisgames.com/wp-content/uploads/2014/04/promo05.png

and this is the link to the page where you can try the alpha of the game:

http://gatogrisgames.com/?page_id=410

Thanks a lot for the help :)

If you want to post a link, though, just post something "close" to the URL (like "www (dot) google (dot) com") and I'll edit your post to make it work right.

Apologies, seems at the moment i'm not able of adding links in the posts, i need more karma :)

Right now i'm focused in a better collision system, :D the one i did is very simple, and the ball get's stack over the
paddle sometimes. I also want to prepare 2 more things. First a difficulty level for when playing against the computer, and second, a power up system.
Hope to be able to show more things soon :)

My most sincere apologies for this. The problem is in the texture itself. AS i was using the full Y dimensions of the paddle spriteSheet. So, if the paddle first frame, that i was using as static paddle, has an Y value of 100, i had in the code like the double, that corresponds to the full expand animation frame.

Thanks a lot rbwhitaker. When you asked about how i was computing, took me a while, but i realized the texture values were wrong.

This is the code i have in the paddle class:

 public override void Update(GameTime gameTime, Rectangle clientBounds) { switch (Name) //enables paddles controls { case "player1": { if (Keyboard.GetState().IsKeyDown(Keys.W)) this.position.Y -= Speed.Y; if (Keyboard.GetState().IsKeyDown(Keys.S)) position.Y += Speed.Y; break; } case "player2": { if (Keyboard.GetState().IsKeyDown(Keys.Up)) position.Y -= Speed.Y; if (Keyboard.GetState().IsKeyDown(Keys.Down)) position.Y += Speed.Y; break; } case "com": { //TODO MOVE PADDLE TO HIT BALL break; } } //keep Y position inside window boundaries position.Y = MathHelper.Clamp(Position.Y, 0, clientBounds.Height - texture.Height); }

then in the Game1 class i use it like this, inside the state for the playing game

 case GameState.playingGame: // output feedback Console.WriteLine(player1.Position); Console.WriteLine(mouseState.X + ", " + mouseState.Y); Console.WriteLine(Window.ClientBounds.Width); Console.WriteLine(Window.ClientBounds.Height); player1.Update(gameTime, Window.ClientBounds); player2.Update(gameTime, Window.ClientBounds); ball.Update(gameTime, Window.ClientBounds);

and here is where i'm confused. I expected with this to get the game window dimensions, however the bounds doesn't match :)

Thanks a lot for the help. At the moment, i got it working with an if /else statement in the Update method, that sets the length of the animation like this:

 if (collideP1()) { player1.SheetSize = new Point(6, 1); } else { player1.SheetSize = new Point(1, 1); }

it does the job without using animationActive, have to try rbwhitaker suggestion yet, so i consider it like a temporally solution until solve some problem i'm having with the ClientBounds, and would like to ask if you have experience something similar.
I did the graphics for a 1600 x 1200 window resolution and added this lines in the Game1 constructor method:

 graphics.PreferredBackBufferWidth = 1600; graphics.PreferredBackBufferHeight = 1200;

However, the paddles and the ball seem to have a smaller resolution client bounds when running the game, as their bound limits in y top and bottom, doesn't reach the window ones.
This is the expression i'm using to keep the paddles within the window:

position.Y = MathHelper.Clamp(Position.Y, 0, clientBounds.Height - frameSize.Y);

hope i haven't make it to confusing.
Thanks in advance.

What I might suggest instead is that you rename your method to BeginAnimation and strip it down to just setting animationActive to true, and resetting currentFrameX and currentFrameY back to 0. (You're effectively resetting the animation to the starting point.)

The rest of the loop gets moved to an Update method somewhere else (perhaps the Update method on your main Game class, but it would be better if the game object the animation it is associated with had an Update method of its own) and would get called each update cycle.

Does that make sense?

Oh, and one last thing. If you're seeing a few frames pop up, but not the whole animation, it may be a timing issue with the frame. In the example code, I use a float to track the amount of time between gametime updates which allows me to make sure each frame is displayed for a certain amount of time. If there's no pause between frame updates, it may be cycling through the animation very very quickly, and you only see a few of the frames. Just a thought!

Yes, for detecting collision i'm using 2 rectangles in a boolean method:

 public bool collideP1() { Rectangle player1Rect = new Rectangle((int)player1.Position.X - player1.CollisionOffset, (int)player1.Position.Y - player1.CollisionOffset, player1.FrameSize.X - player1.CollisionOffset, player1.FrameSize.Y - player1.CollisionOffset); Rectangle ballRect = new Rectangle((int)ball.Position.X, (int)ball.Position.Y, ball.FrameSize.X, ball.FrameSize.Y); return ballRect.Intersects(player1Rect); }

Although in the code i managed to make it play as long the method is true, and every time the sprites collide i can see a few frames playing.

I 'm going to take a look to the code in the link you sent me and try to find the answer :)

thanks!

In the meantime, I've made the entire code for my breakout project available to everyone here. It can be downloaded at:
https://rapidshare.com/download/share/20966770DE4890408CD5A1B361D7F733

In this project, I've made a number of classes to help with basic game building, so you might find some of it useful. Specifically, there is an AnimatedSprite class I use for animations which does work, so you may find an answer in there. Like I said, it seems kind of like the collision isn't firing. Have you set a breakpoint in the Animation class to make sure it is being called?

I'm trying to recreate a PONG game and would like to animate (expand) the paddles vertically when the ball collides with them.
I have a Sprite class with this Animate method:

public void Animate() // start animation loop when ball collides { animationActive = true; // while bool is true play the sprite frames while (animationActive) { ++currentFrame.X; if (currentFrame.X >= sheetSize.X) { currentFrame.X = 0; ++currentFrame.Y; if (currentFrame.Y >= sheetSize.Y) { currentFrame.Y = 0; animationActive = false; } } } }

As you can imagine. My problem is the animation doesn't play when the ball hits the paddle.
For checking the collision i have a collide method that i call in the Update() like this:

 if (collideP1()) player1.Animate();

Thanks for the help.