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Hearts: Prefer to play Queen of Spades when we're the trailing player

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Previously in a trick like 2S, KS, 5S we'd rather follow up with AS
instead of QS. We should prefer to play QS in this case.
This commit is contained in:
Gunnar Beutner 2021-05-22 09:15:17 +02:00 committed by Linus Groh
parent 0dd22c4e23
commit c2a4b581fe
Notes: sideshowbarker 2024-07-18 17:33:51 +09:00 
Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/c2a4b581fe8
Pull-request: https://github.com/SerenityOS/serenity/pull/7381
Reviewed-by: https://github.com/linusg
1 changed files with 6 additions and 6 deletions
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12
Userland/Games/Hearts/Game.cpp
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@ -180,6 +180,12 @@ size_t Game::pick_card(Player& player)
} else
return player.pick_low_points_low_value_card();
}
auto* high_card = &m_trick[0];
for (auto& card : m_trick)
if (high_card->type() == card.type() && hearts_card_value(card) > hearts_card_value(*high_card))
high_card = &card;
if (high_card->type() == Card::Type::Spades && hearts_card_value(*high_card) > CardValue::Queen)
RETURN_CARD_IF_VALID(player.pick_specific_card(Card::Type::Spades, CardValue::Queen));
auto card_has_points = [](Card& card) { return hearts_card_points(card) > 0; };
auto trick_has_points = m_trick.first_matching(card_has_points).has_value();
bool is_trailing_player = m_trick.size() == 3;
@ -190,12 +196,6 @@ size_t Game::pick_card(Player& player)
else
return player.pick_max_points_card();
}
auto* high_card = &m_trick[0];
for (auto& card : m_trick)
if (high_card->type() == card.type() && hearts_card_value(card) > hearts_card_value(*high_card))
high_card = &card;
if (!is_first_trick && high_card->type() == Card::Type::Spades && hearts_card_value(*high_card) > CardValue::Queen)
RETURN_CARD_IF_VALID(player.pick_specific_card(Card::Type::Spades, CardValue::Queen));
RETURN_CARD_IF_VALID(player.pick_lower_value_card(*high_card));
if (!is_trailing_player)
RETURN_CARD_IF_VALID(player.pick_slightly_higher_value_card(*high_card));