Book Image

HTML5 Game Development by Example: Beginner's Guide

By : Seng Hin Mak
Book Image

HTML5 Game Development by Example: Beginner's Guide

By: Seng Hin Mak

Overview of this book

Table of Contents (18 chapters)
HTML5 Game Development by Example Beginner's Guide Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
9
Building a Physics Car Game with Box2D and Canvas
Index

Detecting line intersection in the Canvas


We have draggable circles and connected lines in the Canvas. Some lines intersect others and some do not. Now imagine we want to distinguish the intersected lines. We need some mathematics formula to check them and then thicken those intersected lines.