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Minor cleanups

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Remove unused code and magic numbers
This commit is contained in:
noobpwnftw
2020-10-01 14:58:53 +08:00
committed by nodchip
parent f848d67341
commit 6f7a228707
1 changed files with 1 additions and 57 deletions
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58
src/learn/gensfen.cpp
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@@ -387,12 +387,6 @@ namespace Learner
int ply,
int& random_move_c);
Value evaluate_leaf(
Position& pos,
std::vector<StateInfo, AlignedAllocator<StateInfo>>& states,
int ply,
vector<Move>& pv);
// Min and max depths for search during gensfen
int search_depth_min;
int search_depth_max;
@@ -732,56 +726,6 @@ namespace Learner
return random_move_flag;
}
Value MultiThinkGenSfen::evaluate_leaf(
Position& pos,
std::vector<StateInfo, AlignedAllocator<StateInfo>>& states,
int ply,
vector<Move>& pv)
{
auto rootColor = pos.side_to_move();
for (auto m : pv)
{
// There should be no illegal move. This is as a debugging precaution.
if (!pos.pseudo_legal(m) || !pos.legal(m))
{
cout << "Error! : " << pos.fen() << m << endl;
}
pos.do_move(m, states[ply++]);
}
// Reach leaf
Value v;
if (pos.checkers())
{
// Sometime a king is checked. An example is a case that a checkmate is
// found in the search. If Eval::evaluate() is called whne a king is
// checked, classic eval crashes by an assertion. To avoid crashes, return
// VALUE_NONE and let the caller assign a value to the position.
v = VALUE_NONE;
}
else
{
v = Eval::evaluate(pos);
// evaluate() returns the evaluation value on the turn side, so
// If it's a turn different from root_color, you must invert v and return it.
if (rootColor != pos.side_to_move())
{
v = -v;
}
}
// Rewind the pv moves.
for (auto it = pv.rbegin(); it != pv.rend(); ++it)
{
pos.undo_move(*it);
}
return v;
}
// thread_id = 0..Threads.size()-1
void MultiThinkGenSfen::thread_worker(size_t thread_id)
{
@@ -853,7 +797,7 @@ namespace Learner
if (abs(search_value) >= eval_limit)
{
resign_counter++;
if ((should_resign && resign_counter >= 4) || abs(search_value) >= 10000) {
if ((should_resign && resign_counter >= 4) || abs(search_value) >= VALUE_KNOWN_WIN) {
flush_psv((search_value >= eval_limit) ? 1 : -1);
break;
}