October 2010
Beginner
373 pages
7h 28m
English
Content preview from The Essential Guide to HTML5: Using Games to Learn HTML5 and JavaScript
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Chapter 4. Cannonball and Slingshot
maintaining a list of objects to draw on the screen
rotating objects drawn on the screen
mouse drag and drop operations
calculations to simulate ballistic motion (effects of gravity) and collisions
Introduction
This chapter demonstrates another example of animation, in this case simulation of ballistics, also called projectile motion. A ball or ball-like object maintains a constant horizontal (x) displacement, with the vertical displacement changing as it would due to gravity. The resulting motion is an arc. The ball stops when it (virtually) hits the ground or the target. The code you'll see produces the animation ...
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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.
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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.