} // stored in ascending order of grades as seconds since epoch time
public Achieve(int achieveId, int grade = 0, int counter = 0, List <long> timestamps = null)
{
Id = achieveId;
CurrentGrade = grade;
Counter = counter;
Timestamps = timestamps ?? new List <long>();
MaxGrade = AchieveMetadataStorage.GetNumGrades(Id);
Condition = AchieveMetadataStorage.GetCondition(Id, CurrentGrade);
}
public void AddCounter(int amount)
{
Counter += amount;
// level up achievement if counter reached condition of next grade
if ((Condition != 0) && (Counter >= Condition))
{
// level up but not fully completed
if (CurrentGrade < MaxGrade)
{
CurrentGrade++;
Condition = AchieveMetadataStorage.GetCondition(Id, CurrentGrade);
}
// level up and fully completed
else
{
Condition = 0;
}
Timestamps.Add(DateTimeOffset.UtcNow.ToUnixTimeSeconds());
}
}