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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

Adding scripts to the player sprite


The player sprite in Hunger Run is relatively simple. Its main action is to jump to avoid lethal food.

Prepare for lift off

Open the player sprite and verify that the player sprite has two costumes: Marco and Polo as shown on the following screenshot:

Engage thrusters

We will create codes for the player sprite to do the following:

  • To initialize when the game starts

  • To fall down

  • To jump

  • To end the sprite

Perform the following steps to initialize when the game starts:

  1. Start with a when I receive <game_start> block.

  2. Check whether to be Marco or Polo. The user selects the character at the beginning of the game. Add an if player_name = () then () else () block; in if player_name=(), enter Marco. If the player's name is Marco, add the switch costume to <marco> block. Inside else (), add the switch costume to <polo> block accordingly.

  3. Enter 120 in the set <jump_steps> to () block.

  4. Enter 0.5 in the set <jump_wait_time> to () block.

  5. Enter 8 in...

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