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

Tracking the best score or time


Often when we make a game where we are keeping track of score or time, it can be useful to know what the best score or time was. We can accomplish this goal rather simply using variables. Let's take a look at how to do this in this recipe.

Getting ready

This recipe will use the techniques we used in the last recipe named Using the timer in Chapter 4, Basic Gaming. Open up the Scratch file we had to create that recipe, we'll begin there.

Note

Recall that this was a game where we had a mouse crawl through a maze we created. We recorded the last time that it took to complete by using a variable. Here we will build on these ideas.

How to do it...

Follow these steps:

  1. Head to the Data category of blocks. Click on the button to make a variable, as we've done in several recipes already.

  2. Call this variable BestTime.

  3. Take a look at the sequence of blocks shown in the following screenshot. This is what we'll be editing in this recipe:

  4. Drag a conditional block from the Control...