checkpoint for sleep

pokercore/pokercore.go

@@ -9,17 +9,17 @@ import rand "math/rand"
 
 import "strings"
 
-/*
 const CLUB = "\u2663"
 const SPADE = "\u2660"
 const DIAMOND = "\u2666"
 const HEART = "\u2665"
-*/
 
+/*
 const CLUB = "C"
 const SPADE = "S"
 const DIAMOND = "D"
 const HEART = "H"
+*/
 
 type TestGenerationIteration struct {
 	Deck *Deck
@@ -35,10 +35,41 @@ type Cards []*Card
 
 type Deck struct {
 	Cards          Cards
-	Dealt          int
+	DealIndex      int
 	ShuffleSeedVal int64
 }
 
+func formatCardsForTerminal(c Cards) (output string) {
+	var cardstrings []string
+	for i := 0; i < len(c); i++ {
+		cardstrings = append(cardstrings, formatCardForTerminal(*c[i]))
+	}
+	output = strings.Join(cardstrings, ",")
+	return output
+
+}
+
+func formatCardForTerminal(c Card) (output string) {
+	var rank string
+	var suit string
+	color := Red
+	switch c.Suit {
+	case DIAMOND:
+		color = Blue
+	case HEART:
+		color = Red
+	case CLUB:
+		color = Green
+	case SPADE:
+		color = Black
+	}
+
+	rank = fmt.Sprintf("%s", BgGray(Bold(color(c.Rank))))
+	suit = fmt.Sprintf("%s", BgGray(Bold(color(c.Suit))))
+	output = fmt.Sprintf("%s%s", rank, suit)
+	return output
+}
+
 func cryptoUint64() (v uint64) {
 	err := binary.Read(crand.Reader, binary.BigEndian, &v)
 	if err != nil {
@@ -48,33 +79,8 @@ func cryptoUint64() (v uint64) {
 	return v
 }
 
-func NewRandom() *rand.Rand {
-
-	trueRandom := true
-
-	var rnd *rand.Rand
-
-	return rnd
-}
-
 func (self *Card) String() string {
-	var rank string
-	var suit string
-	color := Red
-	switch self.Suit {
-	case DIAMOND:
-		color = Blue
-	case HEART:
-		color = Red
-	case CLUB:
-		color = Green
-	case SPADE:
-		color = Black
-	}
-
-	rank = fmt.Sprintf("%s", BgGray(Bold(color(self.Rank))))
-	suit = fmt.Sprintf("%s", BgGray(Bold(color(self.Suit))))
-	return fmt.Sprintf("%s%s", rank, suit)
+	return fmt.Sprintf("%s%s", self.Rank, self.Suit)
 }
 
 func NewDeck() *Deck {
@@ -82,7 +88,7 @@ func NewDeck() *Deck {
 	self := new(Deck)
 
 	ranks := []string{"A", "2", "3", "4", "5", "6", "7",
-		"8", "9", "10", "J", "Q", "K"}
+		"8", "9", "T", "J", "Q", "K"}
 
 	suits := []string{HEART, DIAMOND, CLUB, SPADE}
 
@@ -98,7 +104,7 @@ func NewDeck() *Deck {
 			tot++
 		}
 	}
-	self.Dealt = 0
+	self.DealIndex = 0
 	return self
 }
 
@@ -106,28 +112,37 @@ func (self *Deck) ShuffleRandomly() {
 	rnd := rand.New(rand.NewSource(int64(cryptoUint64())))
 	//FIXME(sneak) not sure if this is constant time or not
 	rnd.Shuffle(len(self.Cards), func(i, j int) { self.Cards[i], self.Cards[j] = self.Cards[j], self.Cards[i] })
+	self.DealIndex = 0
 }
 
-func (self *Deck) ShuffleDeterministic(int64 seed) {
+func (self *Deck) ShuffleDeterministically(seed int64) {
 	r := rand.New(rand.NewSource(seed))
 	//FIXME(sneak) not sure if this is constant time or not
 	r.Shuffle(len(self.Cards), func(i, j int) { self.Cards[i], self.Cards[j] = self.Cards[j], self.Cards[i] })
+	self.DealIndex = 0
 }
 
 func (self *Deck) Deal(n int) (output Cards) {
 
-	if (self.Dealt + n) > len(self.Cards) {
+	if (self.DealIndex + n) > len(self.Cards) {
 		return output
 	}
 
 	for i := 0; i < n; i++ {
-		card := self.Cards[self.Dealt+1]
-		output = append(output, card)
-		self.Dealt++
+		output = append(output, self.Cards[self.DealIndex+1])
+		self.DealIndex++
 	}
 	return output
 }
 
+func (self *Deck) Dealt() int {
+	return self.DealIndex
+}
+
+func (self *Deck) Remaining() int {
+	return (len(self.Cards) - self.DealIndex)
+}
+
 func (s Cards) String() (output string) {
 	var cardstrings []string
 	for i := 0; i < len(s); i++ {
@@ -142,12 +157,51 @@ func generate() {
 }
 
 func proto() {
-
 	myDeck := NewDeck()
-	myDeck.Shuffle()
+	myDeck.ShuffleDeterministically(42)
 	myHand := myDeck.Deal(2)
 	//spew.Dump(myHand)
 	fmt.Printf("my hand: %s\n", myHand)
 	cmty := myDeck.Deal(5)
 	fmt.Printf("community: %s\n", cmty)
 }
+
+func scorePokerHand(input Cards) (score int) {
+	/*
+
+		scoring system:
+			high card:
+				high card * 14^4
+				+ first kicker * 14^3
+				+ second kicker * 14^2
+				+ third kicker * 14
+				+ fourth kicker
+				max(AKQJ9): 576,011
+			single pair:
+				pair value * 1,000,000
+				+ first kicker * 14^2
+				+ second kicker * 14
+				+ third kicker
+				max(AAKQJ): 14,002,727
+			two pair:
+				higher of the two pair value * 100,000,000
+				+ lower of the two pair value * 14
+				+ kicker value
+				max(AAKKQ): 1,300,000,179
+			trips:
+				trips value * 1,000,000,000 (min 2,000,000,000)
+				+ first kicker * 14
+				+ second kicker
+				max (AAAKQ): 14,000,000,194
+			straight:
+				highest card * 10,000,000,000
+				straight to the ace: 140,000,000,000
+			flush:
+				highest card * 100,000,000,000
+				min(23457): 700,000,000,000
+				max(AXXXX): 1,400,000,000,000
+			boat:
+
+
+	*/
+}

pokercore/pokercore_test.go

@@ -2,6 +2,26 @@ package pokercore
 
 import "testing"
 
+type ShuffleTestResults []struct {
+	SeedVal  int64
+	Expected string
+}
+
 func TestPokerHand(t *testing.T) {
 	//test stuff here
+	d := NewDeck()
+	d.ShuffleDeterministically(437)
+	cards := d.Deal(7)
+	//expected := "7C,5S,QS,2D,6D,QC,3H"
+	expected := "7♣,5♠,Q♠,2♦,6♦,Q♣,3♥"
+	if s := cards.String(); s != expected {
+		t.Errorf("didn't get expected cards, got %s", s)
+	} else {
+		t.Logf("got expected cards %s", s)
+	}
+
+	x := d.Remaining()
+	if x != 45 {
+		t.Errorf("expected 45 left, got %d", x)
+	}
 }