本文整理汇总了C++中GoBoard::liberty_count方法的典型用法代码示例。如果您正苦于以下问题：C++ GoBoard::liberty_count方法的具体用法？C++ GoBoard::liberty_count怎么用？C++ GoBoard::liberty_count使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GoBoard的用法示例。
在下文中一共展示了GoBoard::liberty_count方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: write_features
void write_features(filtering_ostream& features_out, GoBoard& board, Player perspective_player) {
uint8_t feature_buffer[BOARD_SIZE * BOARD_SIZE * FEATURE_COUNT] = {};
for (int y = 0; y < BOARD_SIZE; y++) {
for (int x = 0; x < BOARD_SIZE; x++) {
Cell piece = piece_at(board, {x, y});
assert(piece == 0 or piece == 1 or piece == 2);
#define FEATURE(k) (feature_buffer[(BOARD_SIZE * BOARD_SIZE * (k)) + (x) + (y) * BOARD_SIZE])
FEATURE(FEAT_ONES_PLANE) = 1;
FEATURE(FEAT_EMPTY_LOCATIONS_PLANE) = piece == 0;
FEATURE(FEAT_P1_STONES) = piece == (int)perspective_player;
FEATURE(FEAT_P2_STONES) = piece == (int)opponent_of(perspective_player);
// If the piece is non-zero then lookup the liberty count, and write out feature maps.
int liberties = (piece != 0) ? board.liberty_count({x, y}) : 0;
if (piece == (int)perspective_player) {
FEATURE(FEAT_P1_LIBERTY1) = liberties == 1;
FEATURE(FEAT_P1_LIBERTY2) = liberties == 2;
FEATURE(FEAT_P1_LIBERTY3) = liberties == 3;
FEATURE(FEAT_P1_LIBERTY4PLUS) = liberties >= 4;
} else {
FEATURE(FEAT_P2_LIBERTY1) = liberties == 1;
FEATURE(FEAT_P2_LIBERTY2) = liberties == 2;
FEATURE(FEAT_P2_LIBERTY3) = liberties == 3;
FEATURE(FEAT_P2_LIBERTY4PLUS) = liberties >= 4;
}
for (auto layer_and_player : {
pair<FeatureKind, Player>{FEAT_P1_PLAY_CAUSES_CAPTURE1, perspective_player},
{FEAT_P2_PLAY_CAUSES_CAPTURE1, opponent_of(perspective_player)},
}) {
FeatureKind feature_layer = layer_and_player.first;
Player player = layer_and_player.second;
FEATURE(feature_layer) = 0;
// Check for a neighbor we might capture.
if (piece_at(board, {x, y}) == 0) {
Coord left {x - 1, y};
Coord right {x + 1, y};
Coord above {x, y - 1};
Coord below {x, y + 1};
// Look for an adjacent group owned by the other player with exactly one liberty.
// If such a group exists, then playing here causes a capture.
int total_captured_stones = 0;
for (auto direction : {left, right, above, below}) {
if (coord_in_bounds(direction) and piece_at(board, direction) == (int)opponent_of(player)) {
if (board.liberty_count(direction) == 1) {
total_captured_stones += board.group_size(direction);
}
}
}
if (total_captured_stones > 2)
total_captured_stones = 2;
if (total_captured_stones > 0)
FEATURE(feature_layer + (total_captured_stones - 1)) = 1;
}
}
FEATURE(FEAT_IS_WHITE) = perspective_player == Player::WHITE;
#undef FEATURE
}
}
features_out.write(reinterpret_cast<const char*>(feature_buffer), BOARD_SIZE * BOARD_SIZE * FEATURE_COUNT);
}