Previously, AK::Function would accept _any_ callable type, and try to
call it when called, first with the given set of arguments, then with
zero arguments, and if all of those failed, it would simply not call the
function and **return a value-constructed Out type**.
This lead to many, many, many hard to debug situations when someone
forgot a `const` in their lambda argument types, and many cases of
people taking zero arguments in their lambdas to ignore them.
This commit reworks the Function interface to not include any such
surprising behaviour, if your function instance is not callable with
the declared argument set of the Function, it can simply not be
assigned to that Function instance, end of story.
When we don't have a matching card for the lead card rather than
always preferring to play hearts we should try to get rid of our
high value cards first if no other player has hearts cards higher
than what we have.
When we're the third player in a trick and we don't have a lower value
card we would previously pick a slightly higher value card. Instead
we should pick the highest value card unless there are points in the
current trick or the lead card is spades and the higher value card
we would've picked is higher than the queen and another player still
has the queen.
The rationale is that we have to take the trick anyway so we might as
well get rid of our highest value card. If the trailing player has a
lower value card of the same type we take the trick but don't gain
any points. If they don't have a card of the same type it doesn't
matter whether we play a high value or low value card.
Previously the AI would prefer playing a lead card for which no other
player had a card with a higher value even though it also had a card
for which a higher value card was still in play.
When an animation is stopped the cards should be moved to their final
position anyway. Otherwise they might end up getting stuck in the
middle of the animation.
This changes the game so that more than one hand can be played. Once
one player has 100 or more points the game ends. A score card is shown
between each hand.
Fixes#7374.
Instead of picking the card with the lowest value we should pick the
card with the highest value for which we know no lower value card is
in play anymore and that someone else still has an even higher value
card.
