May 2012
Intermediate to advanced
752 pages
20h 24m
English
Content preview from Core HTML5 Canvas: Graphics, Animation, and Game DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 8. Collision Detection
Collision detection, in one form or another, is a staple of many animations and nearly all games. In this chapter you will see how to implement collision detection, from simple strategies involving bounding areas and intersecting rays, to detecting collisions between arbitrary polygons, circles, images, and sprites.
Most of this chapter deals with implementing the separating axis theorem (SAT), which is a highly accurate and widely used method for detecting collisions between polygons, both in two and three dimensions. You will see how to implement the SAT with Canvas, and how to extend it for circles, images, and sprites.
This chapter concludes with a look at a byproduct of the SAT, the minimum translation vector ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.