/// <summary>
/// Method for updating secondary motivation Aspect ( != attention/satisfaction/confidence)
/// </summary>
///
/// <param name="ms"> Motivation state for storing the new values. </param>
internal void updateSecondaryMotivationAspects(MotivationState ms)
{
MotivationModel mm = ms.getMotivationModel();
foreach (MotivationAspect ma in mm.motivationAspects.motivationAspectList)
{
if (!primaryMotivationAspects.Contains(ma.name))
{
if (ms.getMotivation().ContainsKey(ma.name))
{
try
{
double sol = FormulaInterpreter.eval(ma.rule);
ms.updateMotivationAspect(ma.name, sol);
}
catch (Exception e)
{
loggingMAs("Warning: Update for secondary motivation aspects not done.", Severity.Warning);
loggingMAs("Exception caught: " + e.Message);
}
}
else
{
loggingMAs("Warning: Motivation aspect not found!", Severity.Warning);
}
}
}
}
/// <summary>
/// Method for storing new calculated motivation state
/// </summary>
/// <param name="newMs"> state to store</param>
internal void storeNewMotivationState(MotivationState newMs)
{
setMotivationState(newMs);
updateSecondaryMotivationAspects(newMs);
newMs.print();
setMotivationState(newMs);
}
/// <summary>
/// Method downgrading satisfaction, if needed
/// </summary>
public void updateSatisfaction()
{
MotivationState currentMs = getMotivationState();
MotivationState newMs = currentMs.getCopy();
if (checkSatisfactionDowngrade(newMs))
{
storeNewMotivationState(newMs);
}
}
/// <summary>
/// Generates a copy of the motivation state.
/// </summary>
///
/// <returns> A copy of the motivation state. </returns>
internal MotivationState getCopy()
{
MotivationState ms = new MotivationState(this.motivationModel);
foreach (KeyValuePair <String, double> entry in this.motivation)
{
ms.updateMotivationAspect(entry.Key, entry.Value);
}
return(ms);
}
/// <summary>
/// Method for replacing motivation component variables with the current values.
/// </summary>
///
/// <param name="expression"> String for which replacement should happen. </param>
///
/// <returns> String without any motivation component variables. </returns>
private static String replaceVariables(String expression)
{
MotivationState ms = MotivationAssessmentAsset.Handler.getMotivationState();
MotivationModel mm = ms.getMotivationModel();
foreach (MotivationAspect ma in mm.motivationAspects.motivationAspectList)
{
expression = expression.Replace(ma.name, ms.getMotivationAspectValue(ma.name).ToString());
}
MotivationAssessmentAsset.Handler.loggingMAs("FormulaInterpreter: expression to evaluate without variables=" + expression);
return(expression);
}
/// <summary>
/// Updates the motivation state of a player with an motivation evidence.
/// </summary>
///
/// <param name="me"> Motivation evidence for the update. </param>
internal void updateMotivationState(MotivationEvidence me)
{
loggingMAs("Start updating motivation state.");
MotivationState currentMs = getMotivationState();
MotivationState newMs = currentMs.getCopy();
MotivationAssessmentAssetSettings maas = (MotivationAssessmentAssetSettings)getMAsA().Settings;
if (me.EvidenceType == EvidenceType.LevelReached)
{
updatePrimaryMotivationAspect(newMs, "satisfaction", true);
lastTimeUpdated = DateTime.Now;
}
else if (me.EvidenceType == EvidenceType.ProblemSolved)
{
if (me.FirstTryDuration < maas.FirstTryMinDuration)
{
updatePrimaryMotivationAspect(newMs, "attention", false);
}
else
{
if (me.SolvingDuration > maas.SolutionMaxDuration)
{
updatePrimaryMotivationAspect(newMs, "attention", false);
}
else
{
updatePrimaryMotivationAspect(newMs, "attention", true);
}
if (me.NoOfErrors > maas.MaxNoErrors || me.NoOfHelpRequests > maas.MaxNoHelpRequests)
{
updatePrimaryMotivationAspect(newMs, "confidence", false);
}
else
{
updatePrimaryMotivationAspect(newMs, "confidence", true);
}
}
}
else
{
loggingMAs("Warning: Evidence Type unknown!", Severity.Warning);
}
//downgrade satisfaction, if too much time passed by
checkSatisfactionDowngrade(newMs);
//Method for storing changes
storeNewMotivationState(newMs);
}
/// <summary>
/// Method for updating the motivation state aspect satisfaction due to 'too much time no new level'
/// </summary>
/// <param name="newMs"> the new motivation state</param>
private bool checkSatisfactionDowngrade(MotivationState newMs)
{
MotivationAssessmentAssetSettings maas = (MotivationAssessmentAssetSettings)getMAsA().Settings;
if (lastTimeUpdated.AddSeconds(maas.SatisfactionDowngradeTime) < DateTime.Now)
{
updatePrimaryMotivationAspect(newMs, "satisfaction", false);
lastTimeUpdated = DateTime.Now;
return(true);
}
return(false);
}
/// <summary>
/// Returns the Motivation State of the player
/// </summary>
///
///
/// <returns> Motivation state of the specified player. </returns>
public MotivationState getMotivationState()
{
MotivationState ms;
if (motivationState != null)
{
return(motivationState);
}
else
{
ms = new MotivationState(getMotivationModel());
}
return(ms);
}
/// <summary>
/// Method for updating primary motivation Aspect (attention/satisfaction/confidence)
/// </summary>
///
///<param name="ms"> Motivation state for storing the new values. </param>
///<param name="aspect"> String containing "attention","satisfaction" or "confidence". Describes which component gets updated. </param>
///<param name="direction"> Boolean - if true upgrade, else downgrade is done. </param>
///<param name="playerId"> Identification of the player. </param>
internal void updatePrimaryMotivationAspect(MotivationState ms, String aspect, Boolean direction)
{
MotivationModel mm = ms.getMotivationModel();
MotivationAspect ma = mm.motivationAspects.getMotivationAspectByName(aspect);
String expression = direction ? ma.up : ma.down;
try
{
double sol = FormulaInterpreter.eval(expression);
ms.updateMotivationAspect(aspect, sol);
}
catch (Exception e)
{
loggingMAs("Warning: Update for primary motivation aspects not done.", Severity.Warning);
loggingMAs("Exception caught: " + e.Message);
}
}
/// <summary>
/// Method for saving a updated motivation state.
/// </summary>
///
/// <param name="ms"> MotivationState to be stored. </param>
public void setMotivationState(MotivationState ms)
{
motivationState = ms;
}
/// <summary>
/// Returns the Motivation State of a player when provided with player-Id.
/// </summary>
///
/// <param name="playerId"> Identifier of the player. </param>
///
/// <returns> Motivation state of the specified player. </returns>
public Dictionary <string, double> getMotivationState()
{
MotivationState ms = Handler.getMotivationState();
return(ms.getMotivation());;
}
