private int GetTokensEarnedForEquation(MathTimeEquation eq)
{
/*
* For single digit equations:
* - 3 token for < 4 seconds
* - 2 token for 4->7 seconds
* - 1 token for > 7 seconds
*
* For triple digit equations:
* - 5 tokens for < 5 seconds
* - 3 tokens for 5->8 seconds
* - 2 tokens for > 8 seconds
*/
int tokensEarned = 0;
int seconds = (int)(((TimeSpan)(eq.equationEndTime - eq.equationStartTime)).TotalSeconds);
if (eq.DigitLength <= 1)
{
if (seconds < 4)
tokensEarned = 3;
else if (seconds < 7)
tokensEarned = 2;
else
tokensEarned = 1;
}
else if (eq.DigitLength <= 3)
{
if (seconds < 5)
tokensEarned = 5;
else if (seconds < 8)
tokensEarned = 3;
else
tokensEarned = 2;
}
return tokensEarned;
}
/*
private bool ParseDataFile(String fileName, bool splitEquations, int maxRandomEquations)
{
try
{
TextReader reader = new StreamReader(fileName);
String line = reader.ReadLine();
while (line != null)
{
// we expect each line to be something in the form of xxx+yyy
int plusIndex = line.IndexOf('+');
if ((plusIndex != -1) && (plusIndex > 0) && (plusIndex < (line.Length - 1)))
{
String leftSide = line.Substring(0, plusIndex);
String rightSide = line.Substring(plusIndex + 1);
if ((leftSide != null) && (rightSide != null))
{
MathTimeEquation eq = new MathTimeEquation();
eq.topValue = Int32.Parse(leftSide);
eq.bottomValue = Int32.Parse(rightSide);
equationsForSession.Add(eq);
}
}
line = reader.ReadLine();
}
reader.Close();
// reduce the input set to the right number of equations
Random random = new Random();
while (equationsForSession.Count > maxRandomEquations)
{
int indexToDelete = random.Next(equationsForSession.Count);
equationsForSession.RemoveAt(indexToDelete);
}
if (splitEquations)
{
foreach (MathTimeEquation eq in equationsForSession)
{
String leftSide = String.Format("{0:d}", eq.topValue);
String rightSide = String.Format("{0:d}", eq.bottomValue);
// make sure the lengths are the same, zero prefixing the shorter
int maxLen = Math.Max(leftSide.Length, rightSide.Length);
while (leftSide.Length < maxLen)
leftSide = "0" + leftSide;
while (rightSide.Length < maxLen)
rightSide = "0" + rightSide;
while (maxLen > 0)
{
String leftSideDigitStr = leftSide.Substring(maxLen - 1, 1);
String rightSideDigitStr = rightSide.Substring(maxLen - 1, 1);
MathTimeEquation singleDigitEq = new MathTimeEquation();
singleDigitEq.topValue = Int32.Parse(leftSideDigitStr);
singleDigitEq.bottomValue = Int32.Parse(rightSideDigitStr);
equationsForSession.Add(singleDigitEq);
maxLen--;
}
}
}
return true;
}
catch (System.IO.IOException)
{
MessageBox.Show("There was an error starting the session. Possibly could not find the data file. Exiting!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return false;
}*/
private void GenerateEquations(int minValue, int maxValue, bool splitEquations, int maxEquations)
{
Random random = new Random();
while (this.equationsForSession.Count < maxEquations)
{
MathTimeEquation eq = new MathTimeEquation();
eq.topValue = random.Next(minValue, maxValue);
eq.bottomValue = random.Next(minValue, maxValue);
this.equationsForSession.Add(eq);
}
if (splitEquations)
{
List<MathTimeEquation> originalEquations = new List<MathTimeEquation>();
originalEquations.AddRange(this.equationsForSession);
this.equationsForSession.Clear();
foreach (MathTimeEquation eq in originalEquations)
{
String leftSide = String.Format("{0:d}", eq.topValue);
String rightSide = String.Format("{0:d}", eq.bottomValue);
// make sure the lengths are the same, zero prefixing the shorter
int maxLen = Math.Max(leftSide.Length, rightSide.Length);
while (leftSide.Length < maxLen)
leftSide = "0" + leftSide;
while (rightSide.Length < maxLen)
rightSide = "0" + rightSide;
int highPDigitsUsed = 0;
while ((maxLen > 0) && (highPDigitsUsed < MainWindow.MaxHighPRequestCount))
{
String leftSideDigitStr = leftSide.Substring(maxLen - 1, 1);
String rightSideDigitStr = rightSide.Substring(maxLen - 1, 1);
MathTimeEquation singleDigitEq = new MathTimeEquation();
singleDigitEq.topValue = Int32.Parse(leftSideDigitStr);
singleDigitEq.bottomValue = Int32.Parse(rightSideDigitStr);
this.equationsForSession.Add(singleDigitEq);
highPDigitsUsed++;
maxLen--;
}
this.equationsForSession.Add(eq);
}
}
}
