private List <T> WeightedDataSelect <T>(List <T> source_data_list, HashSet <T> currentPSData, int nToSelect, DbTables table, SelectionSeverity severity) where T : IData
{
// Given a (filtered) list of data, select some using weights
List <ScoreData> score_data_list = dbManager.FindScoreDataByQuery("SELECT * FROM ScoreData WHERE TableName = '" + table.ToString() + "'");
string debugString = "-- Teacher Selection Weights";
List <float> weights_list = new List <float>();
foreach (var sourceData in source_data_list)
{
float cumulativeWeight = 0;
debugString += "\n" + sourceData.GetId() + " ---";
// Get score data
var score_data = score_data_list.Find(x => x.ElementId == sourceData.GetId());
float currentScore = 0;
int daysSinceLastScore = 0;
if (score_data != null)
{
var timespanFromLastScoreToNow = GenericUtilities.GetTimeSpanBetween(score_data.LastAccessTimestamp, GenericUtilities.GetTimestampForNow());
daysSinceLastScore = timespanFromLastScoreToNow.Days;
currentScore = score_data.Score;
}
//UnityEngine.Debug.Log("Data " + id + " score: " + currentScore + " days " + daysSinceLastScore);
// Score Weight [0,1]: higher the lower the score [-1,1] is
var scoreWeight = 0.5f * (1 - currentScore);
cumulativeWeight += scoreWeight * ConfigAI.data_scoreWeight;
debugString += " \tScore: " + scoreWeight * ConfigAI.data_scoreWeight + "(" + scoreWeight + ")";
// RecentPlay Weight [1,0]: higher the more in the past we saw that data
const float dayLinerWeightDecrease = 1f / ConfigAI.daysForMaximumRecentPlayMalus;
float weightMalus = daysSinceLastScore * dayLinerWeightDecrease;
float recentPlayWeight = 1f - UnityEngine.Mathf.Min(1, weightMalus);
cumulativeWeight += recentPlayWeight * ConfigAI.data_recentPlayWeight;
debugString += " \tRecent: " + recentPlayWeight * ConfigAI.data_recentPlayWeight + "(" + recentPlayWeight + ")";
// Current focus weight [1,0]: higher if the data is part of the current play session
float currentPlaySessionWeight = currentPSData.Contains(sourceData) ? 1 : 0f;
cumulativeWeight += currentPlaySessionWeight * ConfigAI.data_currentPlaySessionWeight;
debugString += " \tCurrentPS: " + currentPlaySessionWeight * ConfigAI.data_currentPlaySessionWeight + "(" + currentPlaySessionWeight + ")";
// If the cumulative weight goes to the negatives, we give it a fixed weight
if (cumulativeWeight <= 0)
{
cumulativeWeight = ConfigAI.data_minimumTotalWeight;
continue;
}
// Save cumulative weight
weights_list.Add(cumulativeWeight);
debugString += " TOTw: " + cumulativeWeight;
}
if (ConfigAI.verboseDataSelection)
{
UnityEngine.Debug.Log(debugString);
}
// Select data from the list
List <T> selected_data_list = new List <T>();
if (source_data_list.Count > 0)
{
int nToSelectFromCurrentList = 0;
List <T> chosenData = null;
switch (severity)
{
case SelectionSeverity.AsManyAsPossible:
case SelectionSeverity.AllRequired:
nToSelectFromCurrentList = UnityEngine.Mathf.Min(source_data_list.Count, nToSelect);
chosenData = RandomHelper.RouletteSelectNonRepeating(source_data_list, weights_list, nToSelectFromCurrentList);
selected_data_list.AddRange(chosenData);
break;
case SelectionSeverity.MayRepeatIfNotEnough:
int nRemainingToSelect = nToSelect;
while (nRemainingToSelect > 0)
{
var listCopy = new List <T>(source_data_list);
nToSelectFromCurrentList = UnityEngine.Mathf.Min(source_data_list.Count, nRemainingToSelect);
chosenData = RandomHelper.RouletteSelectNonRepeating(listCopy, weights_list, nToSelectFromCurrentList);
selected_data_list.AddRange(chosenData);
nRemainingToSelect -= nToSelectFromCurrentList;
}
break;
}
}
return(selected_data_list);
}
private List <Db.MiniGameData> PerformSelection_Random(Db.PlaySessionData playSessionData, int numberToSelect)
{
// Get all minigames ids for the given playsession (from PlaySessionData)
// ... also, keep the weights around
Dictionary <MiniGameCode, float> playsession_weights_dict = new Dictionary <MiniGameCode, float>();
List <string> minigame_id_list = new List <string>();
foreach (var minigameInPlaySession in playSessionData.Minigames)
{
minigame_id_list.Add(minigameInPlaySession.MiniGameCode.ToString());
playsession_weights_dict[minigameInPlaySession.MiniGameCode] = minigameInPlaySession.Weight;
}
// Get all minigame data, filter by availability (from the static DB)
List <Db.MiniGameData> minigame_data_list = dbManager.FindMiniGameData(x => x.Available && minigame_id_list.Contains(x.GetId()));
// Create the weights list too
List <float> weights_list = new List <float>(minigame_data_list.Count);
// Retrieve the current score data (state) for each minigame (from the dynamic DB)
List <Db.ScoreData> minigame_score_list = dbManager.FindScoreDataByQuery("SELECT * FROM ScoreData WHERE TableName = 'MiniGames'");
//UnityEngine.Debug.Log("M GAME SCORE LIST: " + minigame_score_list.Count);
//foreach(var l in minigame_score_list) UnityEngine.Debug.Log(l.ElementId);
// Determine the final weight for each minigame
string debugString = "----- TEACHER: MiniGameSelection ----- \n";
foreach (var minigame_data in minigame_data_list)
{
float cumulativeWeight = 0;
var minigame_scoredata = minigame_score_list.Find(x => x.ElementId == minigame_data.GetId());
int daysSinceLastScore = 0;
if (minigame_scoredata != null)
{
var timespanFromLastScoreToNow = GenericUtilities.GetTimeSpanBetween(minigame_scoredata.LastAccessTimestamp, GenericUtilities.GetTimestampForNow());
daysSinceLastScore = timespanFromLastScoreToNow.Days;
}
debugString += minigame_data.Code + " --- \t";
// PlaySession Weight [0,1]
float playSessionWeight = playsession_weights_dict[minigame_data.Code] / 100f; // [0-100]
cumulativeWeight += playSessionWeight * ConfigAI.minigame_playSessionWeight;
debugString += " PSw: " + playSessionWeight * ConfigAI.minigame_playSessionWeight + "(" + playSessionWeight + ")";
// RecentPlay Weight [1,0]
const float dayLinerWeightDecrease = 1f / ConfigAI.daysForMaximumRecentPlayMalus;
float weightMalus = daysSinceLastScore * dayLinerWeightDecrease;
float recentPlayWeight = 1f - UnityEngine.Mathf.Min(1, weightMalus);
cumulativeWeight += recentPlayWeight * ConfigAI.minigame_recentPlayWeight;
debugString += " RPw: " + recentPlayWeight * ConfigAI.minigame_recentPlayWeight + "(" + recentPlayWeight + ")";
// Save cumulative weight
weights_list.Add(cumulativeWeight);
debugString += " TOTw: " + cumulativeWeight;
debugString += "\n";
}
if (ConfigAI.verboseTeacher)
{
UnityEngine.Debug.Log(debugString);
}
// Number checks
int actualNumberToSelect = UnityEngine.Mathf.Min(numberToSelect, minigame_data_list.Count);
if (minigame_data_list.Count == 0)
{
throw new System.Exception("Cannot find even a single minigame for play session " + playSessionData.Id);
}
if (numberToSelect > minigame_data_list.Count)
{
UnityEngine.Debug.LogWarning("Could not select the requested number of " + numberToSelect + " minigames for play session " + playSessionData.Id + " (only " + minigame_data_list.Count + " are available)");
}
// Choose N minigames based on these weights
var selectedMiniGameData = RandomHelper.RouletteSelectNonRepeating(minigame_data_list, weights_list, actualNumberToSelect);
return(selectedMiniGameData);
}