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Table Of Contents

Cocos2d Game Development Essentials - Second Edition

By : Ben Trengrove

4.5 (2)

Cocos2d Game Development Essentials

4.5 (2)

By: Ben Trengrove

Overview of this book

If you are a game developer with experience in Objective-C and are interested in creating games for iOS or Android, this is the book for you. It will help you to quickly get started with Cocos2D and guide you through the process of creating a game, giving you the essential skills and knowledge you need to do so.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Started with Cocos2d

1. Getting Started with Cocos2d

An introduction to Cocos2d

Installing Cocos2d

Summary

2. Nodes, Sprites, and Scenes

2. Nodes, Sprites, and Scenes

The building blocks, nodes

Putting it into practice

The next step

The Cocos2d update loop

Scenes

Summary

3. SpriteBuilder

3. SpriteBuilder

Creating a new project

Creating Flappy Square

The next step

Summary

4. Animation with SpriteBuilder

4. Animation with SpriteBuilder

Adding sprites to SpriteBuilder

Creating sprite frame animations

Particle systems

Keyframe animation in SpriteBuilder

Animation in code

Summary

5. User Interaction and Interface

5. User Interaction and Interface

Detecting touches

Adding buttons to your scene

Accepting user input with form elements

Presenting data in a table with CCTableView

Summary

6. Physics Engines

6. Physics Engines

Introducing physics engines

Adding joints

Adding a sprite joint

Dragging an object against a spring joint

Firing objects from the catapult

Creating a motor

The next step

Summary

Index

Index

Adding joints

A joint does exactly what it sounds like it would do. It joins objects together. There are three types of joints:

Physics Pivot Joint: This connects two objects with a single point
Physics Distance Joint: This connects two objects together at a set distance
Physics Spring Joint: This connects two objects together at a set distance, but instead of the joint being rigidly set, it allows the distance to change in the manner of a spring

The first step is to make the base of your catapult static. You don't want it to move throughout the scene.
The joint you will be using is the first option: the physics pivot joint as you want your catapult arm to pivot around a point.
All of the physics joints are available in the SpriteBuilder objects pane.
Drag Physics Pivot Joint onto the scene and position it in the top-right corner of the catapult base.
Next, move the catapult arm so that its anchor point sits exactly at the center of the pivot joint. You can also rotate the arm so that it is...

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

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