I have made a short quiz online following a tutorial, this is my first time using the canvas function. When I have typed my own questions, they appear as one line, and I am not sure how to break the lines up, in order for the question to display properly. Can anyone help?
Here is what I have so far:
<!DOCTYPE HTML>
<html>
<head>
<style>
body{
background-color: black;
}
#ccontainer{
width: 550px;
margin: 0 auto;
margin-top: 110px;
}
#myCanvas{
/*/ background: #FFF; /*/
}
</style>
<script>
window.onload = function(){
var canvas = document.getElementById("myCanvas");
var context = canvas.getContext("2d");
var quizbg = new Image();
var Question = new String;
var Option1 = new String;
var Option2 = new String;
var Option3 = new String;
var mx=0;
var my=0;
var CorrectAnswer = 0;
var qnumber = 0;
var rightanswers=0;
var wronganswers=0;
var QuizFinished = false;
var lock = false;
var textpos1=25;
var textpos2=145;
var textpos3=230;
var textpos4=325;
var Questions = ["Which Manchester United Player won
the 2008 Golden Boot with 31 Goals?","At which club did Bobby Charlton start his football career?","Which year did Wayne Rooney win the BBC Young Sports Personality of the year award?"];
var Options = [["Cristiano Ronaldo","Wayne Rooney","Ryan Giggs"],["Manchester United","Manchester City","Chelsea"],["2002","2003","2004"]];
quizbg.onload = function(){
context.drawImage(quizbg, 0, 0);
SetQuestions();
}
quizbg.src = "quizbg.png";
SetQuestions = function(){
Question=Questions[qnumber];
CorrectAnswer=1+Math.floor(Math.random()*3);
if(CorrectAnswer==1){Option1=Options[qnumber][0];Option2=Options[qnumber][1];Option3=Options[qnumber][2];}
if(CorrectAnswer==2){Option1=Options[qnumber][2];Option2=Options[qnumber][0];Option3=Options[qnumber][1];}
if(CorrectAnswer==3){Option1=Options[qnumber][1];Option2=Options[qnumber][2];Option3=Options[qnumber][0];}
context.textBaseline = "middle";
context.font = "16pt sans-serif,Arial";
context.fillText(Question,20,textpos1);
context.font = "14pt sans-serif,Arial";
context.fillText(Option1,20,textpos2);
context.fillText(Option2,20,textpos3);
context.fillText(Option3,20,textpos4);
}//SetQuestions
canvas.addEventListener('click',ProcessClick,false);
function ProcessClick(ev) {
my=ev.y-canvas.offsetTop;
if(ev.y == undefined){
my = ev.pageY - canvas.offsetTop;
}
if(lock){
ResetQ();
}//if lock
else{
if(my>110 && my<180){GetFeedback(1);}
if(my>200 && my<270){GetFeedback(2);}
if(my>290 && my<360){GetFeedback(3);}
}//!lock
}//process click
GetFeedback = function(a){
if(a==CorrectAnswer){
context.drawImage(quizbg, 0,400,75,70,480,110+(90*(a-1)),75,70);
rightanswers++;
//drawImage(image, sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight)
}
else{
context.drawImage(quizbg, 75,400,75,70,480,110+(90*(a-1)),75,70);
wronganswers++;
}
lock=true;
context.font = "14pt sans-serif,Arial";
context.fillText("Click again to continue",20,380);
}//get feedback
ResetQ= function(){
lock=false;
context.clearRect(0,0,550,400);
qnumber++;
if(qnumber==Questions.length){EndQuiz();}
else{
context.drawImage(quizbg, 0, 0);
SetQuestions();}
}
EndQuiz=function(){
canvas.removeEventListener('click',ProcessClick,false);
context.drawImage(quizbg, 0,0,550,90,0,0,550,400);
context.font = "20pt sans-serif,Arial";
context.fillText("You have finished the quiz!",20,100);
context.font = "16pt sans-serif,Arial";
context.fillText("Correct answers: "+String(rightanswers),20,200);
context.fillText("Wrong answers: "+String(wronganswers),20,240);
}
};
</script>
</head>
<body>
<div id="ccontainer">
<canvas id="myCanvas" width="550" height="400"></canvas>
</div>
</body>
</html>
Thanks!
See Question&Answers more detail:
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