Book Image

Scratch Cookbook

By : Brandon Milonovich
Book Image

Scratch Cookbook

By: Brandon Milonovich

Overview of this book

Scratch 2.0 is an easy to use programming language that allows you to animate stories and create interactive games. Scratch also gives you the capability of using programming to calculate complicated calculations for you. Scratch Cookbook will lead you through easy-to-follow recipes that give you everything you need to become a more advanced programmer. Scratch Cookbook will take you through the essential features of Scratch. You'll then work through simple recipes to gain an understanding of the more advanced features of Scratch. You will learn how to create animations using Scratch. Sensory board integration (getting input from the outside environment) will also be covered, along with using Scratch to solve complicated and tedious calculations for you. You'll also learn how to work through the exciting process of project remixing where you build on the work of others. Scratch Cookbook will give you everything you need to get started with building your own programs in Scratch that involve sounds, animations, and user interaction.
Table of Contents (17 chapters)
Scratch Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Resetting parts of a program


This recipe introduces, more formally, what we did at the end of the previous recipe when we began the process of resetting aspects of our story. Sometimes when we have a program running various settings, placement of objects, variables, and so on, are going to get changed. When we run the program next time, we'll want all of those things to start from where we originally had them.

Getting ready

The example that we'll go through here is resetting the placement of Frog on the stage. This way, each time you click on the green flag, Frog will return to the same starting position.

How to do it...

To get this started, follow these steps:

  1. Drag Frog (on the stage) to the place where you would like him to start each time the program runs. Examine the script -area settings and note the x: and y: positions that are given. From the following screenshot, we can see that Frog has an x -value of 18 and a y -value of -145:

  2. We'll need to know these numbers in just a moment. To reset...