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153 lines
2.8 KiB
153 lines
2.8 KiB
package pokercore
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import "encoding/binary"
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import "fmt"
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import crand "crypto/rand"
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import . "github.com/logrusorgru/aurora"
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import log "github.com/sirupsen/logrus"
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import rand "math/rand"
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import "strings"
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/*
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const CLUB = "\u2663"
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const SPADE = "\u2660"
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const DIAMOND = "\u2666"
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const HEART = "\u2665"
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*/
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const CLUB = "C"
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const SPADE = "S"
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const DIAMOND = "D"
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const HEART = "H"
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type TestGenerationIteration struct {
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Deck *Deck
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Seed int64
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}
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type Card struct {
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Rank string
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Suit string
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}
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type Cards []*Card
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type Deck struct {
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Cards Cards
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Dealt int
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ShuffleSeedVal int64
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}
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func cryptoUint64() (v uint64) {
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err := binary.Read(crand.Reader, binary.BigEndian, &v)
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if err != nil {
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log.Fatal(err)
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}
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log.Debugf("crand cryptosource is returning Uint64: %d", v)
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return v
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}
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func NewRandom() *rand.Rand {
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trueRandom := true
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var rnd *rand.Rand
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return rnd
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}
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func (self *Card) String() string {
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var rank string
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var suit string
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color := Red
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switch self.Suit {
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case DIAMOND:
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color = Blue
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case HEART:
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color = Red
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case CLUB:
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color = Green
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case SPADE:
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color = Black
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}
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rank = fmt.Sprintf("%s", BgGray(Bold(color(self.Rank))))
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suit = fmt.Sprintf("%s", BgGray(Bold(color(self.Suit))))
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return fmt.Sprintf("%s%s", rank, suit)
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}
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func NewDeck() *Deck {
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self := new(Deck)
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ranks := []string{"A", "2", "3", "4", "5", "6", "7",
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"8", "9", "10", "J", "Q", "K"}
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suits := []string{HEART, DIAMOND, CLUB, SPADE}
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self.Cards = make([]*Card, 52)
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tot := 0
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for i := 0; i < len(ranks); i++ {
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for n := 0; n < len(suits); n++ {
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self.Cards[tot] = &Card{
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Rank: ranks[i],
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Suit: suits[n],
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}
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tot++
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}
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}
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self.Dealt = 0
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return self
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}
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func (self *Deck) ShuffleRandomly() {
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rnd := rand.New(rand.NewSource(int64(cryptoUint64())))
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//FIXME(sneak) not sure if this is constant time or not
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rnd.Shuffle(len(self.Cards), func(i, j int) { self.Cards[i], self.Cards[j] = self.Cards[j], self.Cards[i] })
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}
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func (self *Deck) ShuffleDeterministic(int64 seed) {
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r := rand.New(rand.NewSource(seed))
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//FIXME(sneak) not sure if this is constant time or not
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r.Shuffle(len(self.Cards), func(i, j int) { self.Cards[i], self.Cards[j] = self.Cards[j], self.Cards[i] })
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}
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func (self *Deck) Deal(n int) (output Cards) {
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if (self.Dealt + n) > len(self.Cards) {
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return output
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}
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for i := 0; i < n; i++ {
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card := self.Cards[self.Dealt+1]
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output = append(output, card)
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self.Dealt++
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}
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return output
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}
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func (s Cards) String() (output string) {
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var cardstrings []string
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for i := 0; i < len(s); i++ {
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cardstrings = append(cardstrings, s[i].String())
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}
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output = strings.Join(cardstrings, ",")
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return output
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}
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func generate() {
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log.SetLevel(log.DebugLevel)
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}
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func proto() {
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myDeck := NewDeck()
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myDeck.Shuffle()
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myHand := myDeck.Deal(2)
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//spew.Dump(myHand)
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fmt.Printf("my hand: %s\n", myHand)
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cmty := myDeck.Deal(5)
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fmt.Printf("community: %s\n", cmty)
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}
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