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Scratch 2.0 Beginner's Guide: Second Edition

You're reading from   Scratch 2.0 Beginner's Guide: Second Edition Create digital stories, games, art, and animations through six unique projects.

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Product type Paperback
Published in Apr 2014
Publisher
ISBN-13 9781782160724
Length 296 pages
Edition 1st Edition
Tools
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Author (1):
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Michael Badger Michael Badger
Author Profile Icon Michael Badger
Michael Badger
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Table of Contents (13) Chapters Close

Preface 1. Welcome to Scratch 2.0 FREE CHAPTER 2. A Quick Start Guide to Scratch 3. Creating an Animated Birthday Card 4. Creating a Scratch Story Book 5. Creating a Multimedia Slideshow 6. Making an Arcade Game – Breakout (Part I) 7. Programming a Challenging Gameplay – Breakout (Part II) 8. Chatting with a Fortune Teller 9. Turning Geometric Patterns into Art Using the Pen Tool A. Connecting a PicoBoard to Scratch 1.4 B. Pop Quiz Answers Index

Time for action – creating an explosion

Let's draw a pattern, and then we'll completely change the pattern by changing a couple of key values. You don't have to, but I'm going to start with a new project.

  1. Create a variable named counter. Let's initialize our script with the following set of blocks:
    • clear
    • go to x: (0) y: (0)
    • set (counter) to (1)
    • pen down
  2. Add a repeat () block and change the value to 125.
  3. Repeat the following set of blocks:
    • move ((counter) * (2)) steps
    • turn (204) degrees
    • change (counter) by (1)
  4. Next, finish the script by adding the pen up block outside the loop.
  5. Check your script against the following screenshot, and then draw the shape:
    Time for action – creating an explosion
  6. First, remove the (counter) * (2) block from the move () steps block. Then change the value in the move () steps block to 100, and draw the shape.
  7. Now put the (counter) * (2) block back into in the move () steps block. Then change the value in the turn () block to 185, and draw the shape.
  8. The following screenshot shows the...
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