keeping track of a series of simple multiple choice web form answers - actionscript

Question

This is the code I'm trying to use, which seems logical. But doesn't seem to be working.
MyAsFileName.prototype.getTotalScore = function() {
var totalScore = 0;
for (var i = 0; i < allQuestions.length; i++) {
totalScore += allQuestions[i].getCalculatedScore();
if (currentModule.allQuestions[i].parent.questionCorrect == true) {
knowledgePoints++;
} else {
knowledgePoints--;
}
}
debugLog("Total score: " + totalScore);
debugLog(knowledgePoints);
return totalScore;
}
I have allQuestions defined as below:
var allQuestions = Array();
I have knowledgePoints defined as:
this.knowledgePoints = 10;
I have questionCorrect defined as:
this.questionCorrect = false;
Second fresh attempt made with new class as answer below suggested (commented out for now until I figure out how to get working):
// package
// {
/*public class Quiz {
//public
var knowledgePoints: int = 10;
//public
var allQuestions: Array = new Array;
//public
var questionCorrect: Boolean = false;
//public
function getTotalScore(): int {
var totalScore: int = 0;
for (var i = 0; i < allQuestions.length; i++) {
totalScore += allQuestions[i].getCalculatedScore();
if (currentModule.allQuestions[i].parent.questionCorrect) {
knowledgePoints++;
} else {
knowledgePoints--;
}
}
debugLog("Total score: " + totalScore);
debugLog(knowledgePoints);
return totalScore;
}
}*/
//}
This code above outputs two errors in flash console:
Error 1. Attribute used outside of class.
Error 2. 'Int' could not be loaded.

Answer 1

It's a weird (and actually non-AS3 way) way to do this. Instead of creating a unnamed closure which refers weird variables from who-knows where, you should make it a normal AS3 class, something like that (in a file named Quiz.as):
package
{
public class Quiz
{
public var knowledgePoints:int = 10;
public var allQuestions:Array = new Array;
public var questionCorrect:Boolean = false;
public function getTotalScore():int
{
var totalScore:int = 0;
// Your code does not explain how you will that Array.
// It is initially an empty Array of length 0.
for (var i = 0; i < allQuestions.length; i++)
{
totalScore += allQuestions[i].getCalculatedScore();
if (currentModule.allQuestions[i].parent.questionCorrect)
{
knowledgePoints++;
}
else
{
knowledgePoints--;
}
}
// Not sure what it is.
debugLog("Total score: " + totalScore);
debugLog(knowledgePoints);
return totalScore;
}
}
}