Dice Game

Abstract

In this chapter, you learned how to

• declare variables and use global variables to represent application state

• write code to perform arithmetic operations

• define and use programmer-defined functions

• use several built-in features of JavaScript, including the Math.random and Math.floor methods

• use if and switch statements

• create a canvas using an HTML element

• draw rectangles and circles

This chapter introduced a key feature of HTML5, the canvas, as well as the notions of randomness and interactivity. It also presented many programming features you’ll use in the examples in the rest of the book. In particular, the technique of building an application in stages is useful. The next chapter will feature the animation of a ball bouncing in a box—preparation for the real games in Chapter 4: the ballistics simulations called cannon ball and sling shot.