/* convert a list of symbols to an action, false on failure */
bool symsToAction(symbol_list_t symlist, action_t action)
{
action = 0;
//symbol_list_t::const_reverse_iterator it = symlist.rbegin();
//for (UInt64 c = 0; it != symlist.rend(); ++it, c++) {
// if (*it == On) action |= (1 << c);
//}
UInt16 c = 0;
foreach (bool bit in symlist.reverseIterator())
{
if (bit == true)
{
action = action | ((UInt64)1 << c);
}
c++;
}
return(isActionOk(action));
}
/* interprets a list of symbols as a reward */
public reward_t rewardFromPercept(symbol_list_t percept)
{
// assert(percept.size() == m_obs_bits_c + m_rew_bits_c);
// symbol_list_t::const_reverse_iterator it = percept.rbegin();
//int it = 0;
IEnumerator it = percept.reverseIterator().GetEnumerator();
if (m_base2_reward_encoding)
{ // base2 reward encoding
int r = 0;
for (int c = 0; c < m_rew_bits; it.MoveNext())
{
//assert(it != percept.rend());
if ((bool)it.Current == true)
{
r |= (1 << c);
}
c++;
}
return((double)(r));
}
// assume the reward is the number of on bits
double reward = 0.0;
it.MoveNext();
for (int c = 0; c < m_rew_bits; it.MoveNext())
{
//assert(it != percept.rend());
if ((bool)it.Current == true)
{
reward += 1.0;
}
c++;
}
return(reward);
}
