func (ht *HandTracker) populate(playerid int, hand sdz.Hand) {
for _, suit := range sdz.Suits() {
for _, face := range sdz.Faces() {
card := sdz.CreateCard(suit, face)
ht.cards[playerid][card] = 0
}
}
for _, card := range hand {
ht.cards[playerid][card]++
}
ht.calculate()
}
// Returns a new HandTracker with the initial population and calculation done
func NewHandTracker(playerid int, hand sdz.Hand) *HandTracker {
ht := new(HandTracker)
for x := 0; x < 4; x++ {
ht.cards[x] = make(map[sdz.Card]int)
}
ht.playedCards = make(map[sdz.Card]int)
for _, suit := range sdz.Suits() {
for _, face := range sdz.Faces() {
card := sdz.CreateCard(suit, face)
ht.playedCards[card] = 0
}
}
ht.populate(playerid, hand)
return ht
}
func (ht *HandTracker) calculate() {
for _, suit := range sdz.Suits() {
for _, face := range sdz.Faces() {
card := sdz.CreateCard(suit, face)
sum := ht.playedCards[card]
for x := 0; x < 4; x++ {
if val, ok := ht.cards[x][card]; ok {
sum += val
}
}
if sum == 2 {
for x := 0; x < 4; x++ {
if _, ok := ht.cards[x][card]; !ok {
ht.cards[x][card] = 0
}
}
} else {
unknown := -1
for x := 0; x < 4; x++ {
if _, ok := ht.cards[x][card]; !ok {
if unknown == -1 {
unknown = x
} else {
// at least two unknowns
unknown = -1
break
}
}
}
if unknown != -1 {
ht.cards[unknown][card] = 2 - sum
}
}
}
}
}
func (ht *HandTracker) noSuit(playerid int, suit sdz.Suit) {
for _, face := range sdz.Faces() {
ht.cards[playerid][sdz.CreateCard(suit, face)] = 0
}
}