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Introduce ratio operation

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Just like in Physics, the ratio of 2 things in the same unit, should be
without unit.

Example use case:
- Ratio of a Depth by a Depth (eg. ONE_PLY) should be an int.
- Ratio of a Value by a Value (eg. PawnValueEg) should be an int.

Remove a bunch of useless const while there.

No functional change.

Resolves #128
This commit is contained in:
lucasart
2014-11-26 07:53:40 +08:00
committed by Gary Linscott
parent 7caa6cd338
commit 2c52147dbf
2 changed files with 20 additions and 19 deletions
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12
src/search.cpp
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@@ -112,7 +112,7 @@ namespace {
}
size_t candidates_size() const { return candidates; }
bool time_to_pick(Depth depth) const { return depth == 1 + level; }
bool time_to_pick(Depth depth) const { return depth / ONE_PLY == 1 + level; }
Move pick_move();
int level;
@@ -660,7 +660,7 @@ namespace {
assert(eval - beta >= 0);
// Null move dynamic reduction based on depth and value
Depth R = (3 + depth / 4 + std::min(int(eval - beta) / PawnValueMg, 3)) * ONE_PLY;
Depth R = (3 + depth / 4 + std::min((eval - beta) / PawnValueMg, 3)) * ONE_PLY;
pos.do_null_move(st);
(ss+1)->skipNullMove = true;
@@ -793,7 +793,7 @@ moves_loop: // When in check and at SpNode search starts from here
Signals.firstRootMove = (moveCount == 1);
if (thisThread == Threads.main() && Time::now() - SearchTime > 3000)
sync_cout << "info depth " << depth
sync_cout << "info depth " << depth / ONE_PLY
<< " currmove " << UCI::format_move(move, pos.is_chess960())
<< " currmovenumber " << moveCount + PVIdx << sync_endl;
}
@@ -826,7 +826,7 @@ moves_loop: // When in check and at SpNode search starts from here
&& !ext
&& pos.legal(move, ci.pinned))
{
Value rBeta = ttValue - int(2 * depth);
Value rBeta = ttValue - 2 * depth / ONE_PLY;
ss->excludedMove = move;
ss->skipNullMove = true;
value = search<NonPV, false>(pos, ss, rBeta - 1, rBeta, depth / 2, cutNode);
@@ -1362,7 +1362,7 @@ moves_loop: // When in check and at SpNode search starts from here
// Increase history value of the cut-off move and decrease all the other
// played quiet moves.
Value bonus = Value(int(depth) * int(depth));
Value bonus = Value((depth / ONE_PLY) * (depth / ONE_PLY));
History.update(pos.moved_piece(move), to_sq(move), bonus);
for (int i = 0; i < quietsCnt; ++i)
{
@@ -1445,7 +1445,7 @@ moves_loop: // When in check and at SpNode search starts from here
{
bool updated = (i <= PVIdx);
if (depth == 1 && !updated)
if (depth == ONE_PLY && !updated)
continue;
Depth d = updated ? depth : depth - ONE_PLY;