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XNA 4.0 Game Development by Example: Beginner's Guide

You're reading from   XNA 4.0 Game Development by Example: Beginner's Guide The best way to start creating your own games is simply to dive in and give it a go with this Beginner‚Äôs Guide to XNA. Full of examples, tips, and tricks for a solid grounding.

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Product type Paperback
Published in Sep 2010
Publisher Packt
ISBN-13 9781849690669
Length 428 pages
Edition 1st Edition
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Author (1):
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Kurt Jaegers Kurt Jaegers
Author Profile Icon Kurt Jaegers
Kurt Jaegers
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Table of Contents (15) Chapters Close

XNA 4.0 Game Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
Preface
1. Introducing XNA Game Studio FREE CHAPTER 2. Flood Control – Underwater Puzzling 3. Flood Control – Smoothing Out the Rough Edges 4. Asteroid Belt Assault – Lost in Space 5. Asteroid Belt Assault – Special Effects 6. Robot Rampage – Multi-Axis Mayhem 7. Robot Rampage – Lots and Lots of Bullets 8. Gemstone Hunter – Put on Your Platform Shoes 9. Gemstone Hunter – Standing on Your Own Two Pixels Index

Time for action – generating fading pieces


  1. In the Game1 class, modify the CheckScoringChain() method by adding the following call inside the foreach loop before the square is set to "Empty":

    gameBoard.AddFadingPiece(
        (int)ScoringSquare.X,
        (int)ScoringSquare.Y,
        gameBoard.GetSquare(
          (int)ScoringSquare.X,
          (int)ScoringSquare.Y));

What just happened?

Adding fading pieces is simply a matter of getting the square (before it is replaced with an empty square) and adding it to the FadingPieces dictionary. We need to use the (int) typecasts because the ScoringSquare variable is a Vector2 value, which stores its X and Y components as floats.

Falling pieces

Falling pieces are added to the game board in two possible locations: From the FillFromAbove() method when a piece is being moved from one location on the board to another, and in the GenerateNewPieces() method, when a new piece falls in from the top of the game board.

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