src/core/ForgetCurve.cpp

   1 #include "ForgetCurve.h"
   2
   3 namespace freeRecite {
   4
   5 ForgetCurve::ForgetCurve() {
   6
   7   /**
   8    * This result came from Hermann Ebbinghaus' test.
   9    * For more information look the following link:
  10    * http://en.wikipedia.org/wiki/Forgetting_curve
  11    */
  12
  13   interval[0] = 0;               // Remember form here
  14   interval[1] = 1200;            // 20 minutes
  15   interval[2] = 3600;            //  1 hour
  16   interval[3] = 28800;           //  8 hours
  17   interval[4] = 86400;           //  1 day
  18   interval[5] = 172800;          //  2 days
  19   interval[6] = 518400;          //  6 days
  20   interval[7] = 2160000;         // 25 days
  21
  22   mark[0] = 80;
  23   mark[1] = 60;
  24   mark[2] = 66;
  25   mark[3] = 70;
  26   mark[4] = 73;
  27   mark[5] = 76;
  28   mark[6] = 80;
  29   mark[7] = 80;
  30 }
  31
  32 time_t ForgetCurve::getReviewTime(int curOrder) const{
  33   time_t current;
  34   time(&current);
  35   return current + interval[curOrder];
  36 }
  37
  38 ForgetCurve forgetCurve;
  39
  40 } //namespace freeRecite end