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Scratch 2.0 Game Development Hotshot

You're reading from   Scratch 2.0 Game Development Hotshot Get up to date with Scratch 2.0 and build brilliant games without having to code. Including 10 exciting projects that cover most game genres, you'll quickly learn the sophisticated possibilities of Scratch. Have fun!

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Product type Paperback
Published in Feb 2014
Publisher
ISBN-13 9781849697569
Length 330 pages
Edition Edition
Tools
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Toc

Table of Contents (18) Chapters Close

Scratch 2.0 Game Development HOTSHOT
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Blowing Things Up! 2. Beating Back the Horde FREE CHAPTER 3. Start Your Engines 4. Space Age 5. Shoot 'Em Up 6. Building a Worthy Boss 7. Creating a Level Editor 8. Dungeon Crawl 9. Hunger Run 10. Sprites with Characters The New Scratch Interface Index

Creating attack pattern 3


To finish off all the attack moves for the boss, let's create a third attack pattern script.

Prepare for lift off

For this attack pattern, we are going to use an interesting mathematical formula called a sine wave. You might recognize this pattern from mathematics or from a radio wave readout. This pattern causes the sprite to move up and down in a regular curved wave pattern.

It looks very good and can be quite hard to dodge if you're not careful. It serves as a perfect "killer" move to close this part of the tutorial with.

Engage thrusters

This third attack pattern script starts and closes in exactly the same way as the other two. We start with receiving the message pattern3 and close by picking a new random pattern from the list, as follows:

  1. For this pattern, we also use set rotation style <left-right>, since it looks better when the sprite is facing straight ahead.

  2. We then use glide 1 secs to x: () y: () and set it to the middle-right corner of the screen, filling...

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