November 2011
Intermediate to advanced
348 pages
7h 2m
English
Content preview from HTML5 Canvas Cookbook
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Creating a linear motion
In this recipe, we'll try out our Animation class by creating a simple linear motion animation by moving a box from the left of the canvas to the right of the canvas:
How to do it...
Follow these steps to move a box from one side of the canvas to the other:
- Link to the
Animationclass:<head> <script src="animation.js"> </script> - Instantiate an
Animationobject and get the canvas context:<script> window.onload = function(){ var anim = new Animation("myCanvas"); var canvas = anim.getCanvas(); var context = anim.getContext(); - Define the box's linear speed and create a
boxobject that contains the box's position and size:var linearSpeed ...
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