The Essential Guide to HTML5
QUIZ Code Explanation document.body.appendChild(d); thingelem = document. getElementById(uniqueid); thingelem.textContent=facts ...
CHAPTER 6 Code Explanation thingelem.style.left = String(col1+inbetween)+"px"; thingelem.addEventListener ('click',pickelement ...
QUIZ Code Explanation thisxn = Number(thisx) + 115; elementinmotion.style.left = String(thisxn)+"px"; elementinmotion.style.top ...
CHAPTER 6 Code Explanation } else {^ document.f.out .value = "WRONG"; elementinmotion. style.backgroundColor = "white"; } }^ e ...
QUIZ Code Explanation Action: <input name="out" type= "text" value="RIGHT OR WRONG"/> Score: <input name="score" type= ...
CHAPTER 6 Testing and uploading application..................................................................................... ...
QUIZ You can make use of dynamically created and repositioned HTML along with the drawing on canvas that you learned in the prev ...
CHAPTER 6 ...
Chapter 7 Mazes In this chapter, we will cover responding to mouse events calculation of collision between circles and lines re ...
CHAPTER 7 or restore a set of walls saved earlier. In the second version, theres one program to create the mazes and a second f ...
MAZES Figure 7-2. Walls for a maze Figure 7-3 shows the screen after the player has used the arrow keys to move the token into t ...
CHAPTER 7 The two-script application has the second script present the player with a choice. Figure 7-4 shows the opening screen ...
MAZES Figure 7-5. An easy maze Figure 7-6 shows a slightly more difficult maze. Figure 7-6. A moderate maze Figure 7-7 shows a m ...
CHAPTER 7 Figure 7-7. A harder maze One important feature is that in the two-script application, clicking the GET maze button fo ...
MAZES HTML5, CSS, and JavaScript features ...................................................................................... ...
CHAPTER 7 canvas1.addEventListener('mousemove',stretchwall,false); canvas1.addEventListener('mouseup',finish,false); Well also ...
MAZES { keyCode = event.keyCode; event.preventDefault(); } The preventDefault method does what it sounds like: prevents any defa ...
CHAPTER 7 Collision detection: token and any wall To traverse a maze, the player must not move the token across any wall. We wil ...
MAZES For our purposes, we want to determine the value of t when distance is at a minimum. Lessons from calculus and reasoning a ...
CHAPTER 7 return false;} // does not intersect } In our application, the player presses an arrow key and, based on that key, the ...
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