/// <summary>
/// Loads the user's progress of each case (UserCaseProgress objects) back in from file.
/// </summary>
public static void LoadCaseProgress()
{
// create list of UserCaseProgress objects
List <UserCaseProgress> myList = new List <UserCaseProgress>();
string jsonText;
try // attempt to read in previously saved JSON data
{
// find application data path unique to the device platform
string path = Environment.GetFolderPath(
Environment.SpecialFolder.LocalApplicationData);
string filename = Path.Combine(path, JSON_CASE_PROGRESS_FILENAME);
using (var reader = new StreamReader(filename))
{
// read json data
jsonText = reader.ReadToEnd();
}
// parse JSON into a list of UserCaseProgress objects
myList = JsonConvert.DeserializeObject <List <UserCaseProgress> >(jsonText);
}
catch // no JSON data was saved previously, generate defaults
{
// generate defaults for the 57 OLL cases
for (int i = 1; i <= 57; i++)
{
// create UserCaseProgress object
UserCaseProgress caseProgress = new UserCaseProgress();
// default values
caseProgress.CaseNumber = i;
caseProgress.CaseCompetence = 0;
caseProgress.IsTraining = false;
caseProgress.IsLearned = false;
myList.Add(caseProgress);
}
// save the list immediately to file
SaveCaseProgress(myList);
}
// load the list into a global variable for use across multiple pages
GlobalVariables.CaseProgress = myList;
}
/// <summary>
/// Update the case competence value for the currently trained case after the user
/// has specified how good their reaction time was.
/// </summary>
/// <param name="reactionBracket">The user's reaction time, corresponding to the target values in GlobalVariables.ProgressCalcVars.TARGETS</param>
private void ApplyCaseProgress(int reactionBracket)
{
// find the UserCaseProgres object for the case that is currently being trained
UserCaseProgress caseProgress = GlobalVariables.CaseProgress[currentCase.CaseNumber - 1];
// find the corresponding target value based on the reaction time button the user clicked
double target = GlobalVariables.ProgressCalcVars.TARGETS[reactionBracket];
// move the current competence value towards the target value, based on the PROGRESS_RATE
double currentComp = caseProgress.CaseCompetence;
double compIncrease = (target - currentComp) * GlobalVariables.ProgressCalcVars.PROGRESS_RATE;
double newComp = currentComp + compIncrease;
// update the case's competence with the new value
caseProgress.CaseCompetence = newComp;
// save all case progress to a JSON file
MyUtils.SaveCaseProgress(GlobalVariables.CaseProgress);
}