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Scratch 2.0 Game Development Hotshot

4.4 (14)

Scratch 2.0 Game Development Hotshot

4.4 (14)

Overview of this book

Scratch 2.0 Game Development HOTSHOT

Scratch 2.0 Game Development HOTSHOT

Credits

Credits

About the Authors

About the Authors

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

Blowing Things Up!

Blowing Things Up!

Mission briefing

Creating a new project

Starting scripts

Adding targets

Creating a parabolic shot

Creating a landscape

Mission accomplished

Hotshot challenges

Beating Back the Horde

Beating Back the Horde

Mission briefing

Creating a background

Creating enemies

Creating cannons

Fighting back

Increasing the horde

Adding a base

Limiting resources

Winning the game

Mission accomplished

Hotshot challenges

Start Your Engines

Start Your Engines

Mission briefing

Drawing a racetrack

Creating a kart

Building keyboard controls

Using a collision mask

Dealing with collision events

Adding a second player

Finishing the game

Mission accomplished

Hotshot challenges

Space Age

Space Age

Mission briefing

Starting with the starter project

Adding scripts to Spaceship

Updating enemy sprites

Adding scripts to Spaceship Ammo and Enemy Ammo

Adding scripts to Shield and Shield Life

Meeting your Game Manager

Adding levels – three simple steps

Mission accomplished

Hotshot challenges

Shoot 'Em Up

Shoot 'Em Up

Mission briefing

Creating a player character

Creating an enemy

Adding enemy patterns

Shooting those baddies!

Creating background images

Using parallax scrolling to simulate depth

Adding scores and power-ups

Tweaking and balancing

Mission accomplished

Hotshot challenges

Building a Worthy Boss

Building a Worthy Boss

Mission briefing

Sending a message

Adding a test script

Creating the boss

Creating attack pattern 1

Creating attack pattern 2

Creating attack pattern 3

Making the boss more impressive

Defeating the boss

Mission accomplished

Hotshot challenges

Creating a Level Editor

Creating a Level Editor

Mission briefing

Planning the level map

Drawing the level tiles

Preparing the tiles in Scratch

Creating a level generator

Creating a character

Creating a goal

Adding a bomb item

Adding the bomb effects

Mission accomplished

Hotshot challenge

Dungeon Crawl

Dungeon Crawl

Mission briefing

Adding a knight

Adding a ghost

Creating a sword

Creating a bow and arrow

Tying up loose ends

Mission accomplished

Hotshot challenges

Hunger Run

Hunger Run

Mission briefing

Understanding scrolling

Adding scripts to the brick sprite

Adding scripts to the food sprite

Adding scripts to the player sprite

Adding scripts to the Game Manager sprite

Tweaking the game

Mission accomplished

Hotshot challenges

Sprites with Characters

Sprites with Characters

Mission briefing

Building the robot wireframe

Coloring it metallic

Performing final adjustments

Animating

Parting with a few tips

Mission accomplished

Hotshot challenges

The New Scratch Interface

The New Scratch Interface

Mission briefing

Website overview

Creating an account and logging in

The Scratch editor layout

Creating and importing sprites

New script block categories

Saving and loading projects

Sharing the backpack feature

Some benefits and drawbacks of the new Scratch interface

Index

Index

Adding a ghost

Our next enemy will be quite different. It will be easier to script, but offers a bigger challenge to the player. This enemy will be a ghost that is allowed to move through walls freely. Therefore, it can pop up anywhere without restrictions.

Prepare for lift off

We first load a ghost sprite from the Scratch library. To do this, we perform the following steps:

We click the Choose sprite from library icon.
The ghost is also in the Fantasy category, just like the knight.
There are two options. We select Ghost2, because it looks more scary.
Press OK to add Ghost2 to the game.

Engage thrusters

Structurally, the scripts for the ghost will be the same as those for the knight and the cat. However, it doesn't need the takeStep function, because the ghost can just move all over the place.

We can first copy the createMaze listener script and the startGame listener script from Knight. This will shrink the ghost to the right size for the maze and also sets up where it should be placed.
Then, we...

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Tech Concepts

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Programming languages

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