The Essential Guide to HTML5
ROCK, PAPER, SCISSORS var scib = new Throw(scissorsbx,scissorsby,8,50,50,"rgb(0,0,200)","scissors.jpg"); As in our previous appl ...
CHAPTER 8 used. This complexity is forced on us because the browsers implement event handling using different terms. function ch ...
ROCK, PAPER, SCISSORS Generating the computer move Generating the computer move is similar to generating a throw of the dice, as ...
CHAPTER 8 score by 1, which is the effect we want when the player loses a round. Adding 0 leaves the score as is. Now, you may t ...
ROCK, PAPER, SCISSORS Just to show you how these things are done, well use styles for the score field. We set up two styles, on ...
CHAPTER 8 Now, as I frequently tell my students, I am compelled to tell you the truth. In fact, String may not be necessary here ...
ROCK, PAPER, SCISSORS Figure 8-5. First call of flyin, with a tiny image representing the computer move After a different modifi ...
CHAPTER 8 Figure 8-7 shows the animation completed, but just before the text messages with the results. Figure 8-7. Just before ...
ROCK, PAPER, SCISSORS Caution: The order of the audio file references should not be important, but I found warnings that Firefox ...
CHAPTER 8 This should appear reasonable for describing four sets of audio files, but you may be wondering how the code knows whi ...
ROCK, PAPER, SCISSORS Building the application and making it your own .......................................................... ...
CHAPTER 8 Code Explanation form { Style specified for all form elements. There is just one in this document. color: blue; Color ...
ROCK, PAPER, SCISSORS Code Explanation var paperby = 300; Vertical position of paper symbol var scissorsbx = 250; Horizontal pos ...
CHAPTER 8 Code Explanation [-1,0,1], The set of increments when the computer throws paper [1,-1,0]]; The set of increments when ...
ROCK, PAPER, SCISSORS Code Explanation ctx.strokeRect(this.sx,this.sy, this.bwidth,this.bheight); Draw rectangle outline ctx.fi ...
CHAPTER 8 Code Explanation } Close clause var i; Used for indexing over the different symbols for (i=0;i<everything.length;i+ ...
ROCK, PAPER, SCISSORS Code Explanation ctx.drawImage(compimg, 70, 100,size,size); Draw the computer-move image on the screen at ...
CHAPTER 8 Code Explanation ... = String(0); (and it actually isn't necessary since JavaScript will convert a number to a string ...
ROCK, PAPER, SCISSORS Code Explanation <canvas id="canvas" width="600" height= "400"> Starting canvas tag Your browser do ...
CHAPTER 8 function flyin() { ctx.drawImage(compimg, 70,100,size,size); size +=5; if (size>50) { clearInterval(tid); ctx.fillT ...
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