The trick-taking games already here all ask a seat to win tricks it named.
Hearts inverts that: every heart costs a point, the queen of spades costs
thirteen, and the hand is played to take none of them.
Four restrictions decide what may be played, and they lift in that order: the
two of clubs opens the round, a seat holding the led suit must follow it, no
point card may be discarded on the first trick, and hearts cannot be led until
one has been played. Each of the last three lifts when a seat holds nothing
else, which is why playableCards checks them in sequence rather than as one
condition.
Passing is simultaneous at the table but the engine hands out one seat at a
time, so currentSeat returns the lowest seat that has not chosen and the swap
runs once the last one has. viewFor strips the selections as well as the hands:
a pass a client could read in advance is not a pass.
Taking all twenty-six is the one case where a round does not sum to twenty-six,
so scoreRound works from the cards taken rather than a running total -- a count
cannot tell an unbroken moon from thirteen hearts and a queen picked up
elsewhere.
The AI plays to avoid points rather than to shoot: it sheds the queen and her
guards early, ducks under whoever is winning, and takes a trick as cheaply as
it can when it cannot get out of the way.
Not in GameCatalog yet. The engine is complete and tested, but tapping a
catalogue entry with no screen behind it would crash, so it is added with the
screen rather than before it.
Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Urn6eEBA6XzrnfoibL7faC
Claude
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