// FollowSuit tests whether a given hand of cards *can* follow either suit on a card that has been led.
func FollowSuit(card *decktet.DecktetCard, hand ...*decktet.DecktetCard) bool {
for _, s := range card.Suits() {
for _, c := range hand {
if c.HasSuit(s) {
return true
}
}
}
return false
}
// did the player win the hand?
func testWin(dc, pc, ace *decktet.DecktetCard) bool {
trump := ace.Suits()[0]
switch {
case dc.HasSuit(trump) && !pc.HasSuit(trump):
return false
case pc.HasSuit(trump) && !dc.HasSuit(trump):
return true
default: // both have trump or neither does
return pc.Rank() > dc.Rank()
}
}