Ranking Poker Hands
#1
Code: (Select All)
' Poker.bas 2022-10-10 b+ try ranking hands
Dim Shared Order$
Order$ = " A 2 3 4 5 6 7 8 910 J Q K"
Dim Shared Deck$(52), rankCount(10)
makeDeck
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

shuffle
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

'make sure we detect rare occurances
h$ = " AC10C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " KS10S JS QS AS"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 3C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AS 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
Cls
tests = 10000000
While fini = 0
    For k = 0 To 9
        h$ = ""
        For i = 1 To 5
            h$ = h$ + Deck$(k * 5 + i)
        Next
        r = Rank(h$)
        rankCount(r) = rankCount(r) + 1
    Next
    hands = hands + 10
    If hands >= tests Then fini = 1 Else shuffle
    'input "Quit? ";a$
    'if a$ = "y" then fini = 1 else  shuffle
Wend
For i = 1 To 10
    Print rankCount(i); ", "; Int(rankCount(i) / tests * 100); "%, "; RankName$(i)
Next

Function RankName$ (RNumber)
    Select Case RNumber
        Case 1: RankName$ = "Royal Flush"
        Case 2: RankName$ = "Straight Flush"
        Case 3: RankName$ = "Four of a Kind"
        Case 4: RankName$ = "Full House"
        Case 5: RankName$ = "Flush"
        Case 6: RankName$ = "Straight"
        Case 7: RankName$ = "Three of a Kind"
        Case 8: RankName$ = "Two Pair"
        Case 9: RankName$ = "Pair"
        Case 10: RankName$ = "High Card"
    End Select
End Function

Function Rank (hand$)
    Dim arrange(13)
    For i = 1 To 5
        v$ = Mid$(hand$, i * 3 - 2, 2)
        f = (InStr(Order$, v$) + 1) / 2
        arrange(f) = arrange(f) + 1
    Next
    For i = 1 To 13
        Select Case arrange(i)
            Case 2: pair = pair + 1
            Case 3: three = 1
            Case 4: four = 1
        End Select
    Next
    If four = 1 Then Rank = 3: Exit Function
    If three = 1 And pair = 1 Then Rank = 4: Exit Function
    If three = 1 Then Rank = 7: Exit Function
    If pair = 2 Then Rank = 8: Exit Function
    If pair = 1 Then
        Rank = 9: Exit Function
    Else ' check flush and straight
        suit$ = Mid$(hand$, 3, 1): flush = 1
        For i = 2 To 5
            If Mid$(hand$, i * 3, 1) <> suit$ Then flush = 0: Exit For
        Next
        i = 1: straight = 1 ' find lowest card i
        While arrange(i) = 0
            i = i + 1
        Wend
        If i = 1 Then
            If arrange(10) = 1 And arrange(11) = 1 And arrange(12) = 1 And arrange(13) = 1 Then
                straight = 1: royal = 1: GoTo FinishRank
            End If
        End If
        If i >= 10 Then
            straight = 0
        Else
            straight = 1
            For j = i + 1 To i + 4 ' check next 4 cards in sequence
                If arrange(j) <> 1 Then straight = 0: Exit For
            Next
        End If
        FinishRank:
        If (straight = 1) And (flush = 1) And (royal = 1) Then Rank = 1: Exit Function
        If (straight = 1) And (flush = 1) Then Rank = 2: Exit Function
        If (flush = 1) Then Rank = 5: Exit Function
        If (straight = 1) Then
            Rank = 6
        Else
            Rank = 10
        End If
    End If
End Function

Sub shuffle
    For i = 52 To 2 Step -1
        r = Int(Rnd * i) + 1
        t$ = Deck$(i)
        Deck$(i) = Deck$(r)
        Deck$(r) = t$
    Next
End Sub

Sub makeDeck
    suit$ = "CDHS"
    For s = 1 To 4
        For i = 1 To 13
            Deck$((s - 1) * 13 + i) = Mid$(Order$, (i - 1) * 2 + 1, 2) + Mid$(suit$, s, 1)
        Next
    Next
End Sub

'      rank name   calc %   calc odds
'1data  "  Royal Flush", 0.000154, 649740
'2data  " Straight Flush", 0.00139 , 72193.33
'3data  " Four of a Kind", 0.0240 ,  4165
'4data  "   Full House", 0.144  ,  694.17
'5data  "     Flush", 0.197  ,  508.8
'6data  "    Straight", 0.392  ,  254.8
'7data  "Three of a Kind", 2.11  ,   47.3
'8data  "    Two Pair", 4.75  ,   21.03
'9data  "      Pair", 42.3   ,   2.36
'10 data  "   High Card", 50.1   ,   1.995

   
b = b + ...
Reply
#2
(10-11-2022, 05:52 AM)bplus Wrote:
Code: (Select All)
' Poker.bas 2022-10-10 b+ try ranking hands
Dim Shared Order$
Order$ = " A 2 3 4 5 6 7 8 910 J Q K"
Dim Shared Deck$(52), rankCount(10)
makeDeck
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

shuffle
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

'make sure we detect rare occurances
h$ = " AC10C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " KS10S JS QS AS"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 3C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AS 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
Cls
tests = 10000000
While fini = 0
    For k = 0 To 9
        h$ = ""
        For i = 1 To 5
            h$ = h$ + Deck$(k * 5 + i)
        Next
        r = Rank(h$)
        rankCount(r) = rankCount(r) + 1
    Next
    hands = hands + 10
    If hands >= tests Then fini = 1 Else shuffle
    'input "Quit? ";a$
    'if a$ = "y" then fini = 1 else  shuffle
Wend
For i = 1 To 10
    Print rankCount(i); ", "; Int(rankCount(i) / tests * 100); "%, "; RankName$(i)
Next

Function RankName$ (RNumber)
    Select Case RNumber
        Case 1: RankName$ = "Royal Flush"
        Case 2: RankName$ = "Straight Flush"
        Case 3: RankName$ = "Four of a Kind"
        Case 4: RankName$ = "Full House"
        Case 5: RankName$ = "Flush"
        Case 6: RankName$ = "Straight"
        Case 7: RankName$ = "Three of a Kind"
        Case 8: RankName$ = "Two Pair"
        Case 9: RankName$ = "Pair"
        Case 10: RankName$ = "High Card"
    End Select
End Function

Function Rank (hand$)
    Dim arrange(13)
    For i = 1 To 5
        v$ = Mid$(hand$, i * 3 - 2, 2)
        f = (InStr(Order$, v$) + 1) / 2
        arrange(f) = arrange(f) + 1
    Next
    For i = 1 To 13
        Select Case arrange(i)
            Case 2: pair = pair + 1
            Case 3: three = 1
            Case 4: four = 1
        End Select
    Next
    If four = 1 Then Rank = 3: Exit Function
    If three = 1 And pair = 1 Then Rank = 4: Exit Function
    If three = 1 Then Rank = 7: Exit Function
    If pair = 2 Then Rank = 8: Exit Function
    If pair = 1 Then
        Rank = 9: Exit Function
    Else ' check flush and straight
        suit$ = Mid$(hand$, 3, 1): flush = 1
        For i = 2 To 5
            If Mid$(hand$, i * 3, 1) <> suit$ Then flush = 0: Exit For
        Next
        i = 1: straight = 1 ' find lowest card i
        While arrange(i) = 0
            i = i + 1
        Wend
        If i = 1 Then
            If arrange(10) = 1 And arrange(11) = 1 And arrange(12) = 1 And arrange(13) = 1 Then
                straight = 1: royal = 1: GoTo FinishRank
            End If
        End If
        If i >= 10 Then
            straight = 0
        Else
            straight = 1
            For j = i + 1 To i + 4 ' check next 4 cards in sequence
                If arrange(j) <> 1 Then straight = 0: Exit For
            Next
        End If
        FinishRank:
        If (straight = 1) And (flush = 1) And (royal = 1) Then Rank = 1: Exit Function
        If (straight = 1) And (flush = 1) Then Rank = 2: Exit Function
        If (flush = 1) Then Rank = 5: Exit Function
        If (straight = 1) Then
            Rank = 6
        Else
            Rank = 10
        End If
    End If
End Function

Sub shuffle
    For i = 52 To 2 Step -1
        r = Int(Rnd * i) + 1
        t$ = Deck$(i)
        Deck$(i) = Deck$(r)
        Deck$(r) = t$
    Next
End Sub

Sub makeDeck
    suit$ = "CDHS"
    For s = 1 To 4
        For i = 1 To 13
            Deck$((s - 1) * 13 + i) = Mid$(Order$, (i - 1) * 2 + 1, 2) + Mid$(suit$, s, 1)
        Next
    Next
End Sub

'      rank name   calc %   calc odds
'1data  "  Royal Flush", 0.000154, 649740
'2data  " Straight Flush", 0.00139 , 72193.33
'3data  " Four of a Kind", 0.0240 ,  4165
'4data  "   Full House", 0.144  ,  694.17
'5data  "     Flush", 0.197  ,  508.8
'6data  "    Straight", 0.392  ,  254.8
'7data  "Three of a Kind", 2.11  ,   47.3
'8data  "    Two Pair", 4.75  ,   21.03
'9data  "      Pair", 42.3   ,   2.36
'10 data  "   High Card", 50.1   ,   1.995
You beat me (again)!
I'm in the middle (or at least I've started) writing a game based on a similar algorithm.
I use this for shuffling:

for a=1 to 52 
swop=int (rnd*52)+1
swap deck$(a),deck$(swop)
next
Of all the places on Earth, and all the planets in the Universe, I'd rather live here (Perth, W.A.) Big Grin
Reply
#3
I made one of those for Pecos Pete Poker.

The evaluator demo...

Code: (Select All)
' Jacks or better poker evaluator demo.
' Use keys 1 - 9 to search for particular hands, Royal Flush, Full HOuse, etc.
sw% = 55
sh% = 17
WIDTH sw%, sh%
PALETTE 7, 63
COLOR 0, 7: CLS
fontpath$ = ENVIRON$("SYSTEMROOT") + "\fonts\lucon.ttf"
font& = _LOADFONT(fontpath$, 40, "monospace")
_FONT font&
_DELAY .25
_SCREENMOVE 0, 0
msg$ = "Poker Hand Evaluator"
LOCATE 1, (sw% / 2) - (LEN(msg$) / 2): PRINT msg$;
msg$ = "Any Key or 1=RF 2=SF 3=4K 4=FH 5=F 6=S 7=3K 8=2P 9=P"
LOCATE sh%, (sw% / 2) - (LEN(msg$) / 2): PRINT msg$;
VIEW PRINT 3 TO sh% - 2: LOCATE 4, 1

h = 1 ' Number of hands.
noc = 5 ' Number of card.

DO
    REDIM cardID$(1, 5)
    REDIM taken(5)
    FOR i = 1 TO noc
        DO
            card = INT(RND * 52) + 1
            FOR j = 1 TO i
                IF taken(j) = card THEN flag = -1: EXIT FOR
            NEXT
            IF flag = 0 THEN taken(i) = card: EXIT DO ELSE flag = 0
        LOOP
        cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
    NEXT

    IF POS(0) > 3 OR CSRLIN > 4 THEN PRINT: PRINT: PRINT: LOCATE CSRLIN - 1

    LOCATE , 3

    FOR j = 1 TO 5
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        x$ = LTRIM$(STR$(a1))
        b = (a + 12) \ 13
        suite$ = CHR$(2 + b)
        REM PRINT x$; suite$; "  ";
        IF suite$ = CHR$(3) OR suite$ = CHR$(4) THEN COLOR 4 ELSE COLOR 0
        SELECT CASE VAL(x$)
            CASE 1: PRINT "A"; suite$; "   ";
            CASE 13: PRINT "K"; suite$; "   ";
            CASE 12: PRINT "Q"; suite$; "   ";
            CASE 11: PRINT "J"; suite$; "   ";
            CASE 10: PRINT "10"; suite$; "  ";
            CASE ELSE: PRINT LTRIM$(STR$(VAL(x$))); suite$; "   ";
        END SELECT
    NEXT

    GOSUB eval

    COLOR 1
    LOCATE , 28
    IF hand$ = "Pair" THEN
        IF highkind >= 11 THEN COLOR 1: PRINT hand$; " (Pay Out)"; ELSE COLOR 8: PRINT hand$;
    ELSE
        PRINT hand$;
    END IF
    COLOR 1

    IF search$ = "" THEN GOSUB getkey ELSE IF INKEY$ = CHR$(27) THEN search$ = ""

    IF LEN(search$) THEN
        IF hand$ = search$ THEN SLEEP: search$ = ""
    END IF

LOOP
END

eval:
hand$ = ""
DO
    ' Look for flush, same suit.
    samesuit = 0
    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        b = (a + 12) \ 13
        IF j > 1 AND b <> samesuit THEN flag = -1: EXIT FOR
        samesuit = b
    NEXT
    IF flag = 0 THEN
        ' Flush or better.
        hand$ = "Flush"
    ELSE
        flag = 0
    END IF

    ' Look for staright, sequential order.
    high = 0: low = 0: match$ = ""
    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        match$ = match$ + CHR$(a1 + 64)
    NEXT
    IF INSTR(match$, CHR$(1 + 64)) THEN
        IF INSTR(match$, CHR$(13 + 64)) THEN high = 14 ' Ace high straight possible.
    END IF

    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        IF j > 1 AND INSTR(match$, CHR$(a1 + 64)) <> j THEN match$ = "": EXIT FOR
        IF low = 0 OR low > a1 THEN
            IF a1 = 1 AND high = 14 THEN ELSE low = a1
        END IF
        IF high = 0 OR high < a1 THEN high = a1
    NEXT

    IF LEN(match$) AND high - low = noc - 1 THEN
        IF hand$ = "Flush" THEN
            IF high = 14 THEN
                hand$ = "Royal Flush"
            ELSE
                hand$ = "Straight Flush": EXIT DO
            END IF
        ELSE
            hand$ = "Straight": EXIT DO
        END IF
    END IF

    ' Look for number of kinds.
    kinds = 1: highkind = -1
    FOR j = 1 TO noc
        kindcnt = 0
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        IF a1 = 1 THEN ' Convert ace high.
            a1 = 14
            '' cardID$(h, j) = MID$(cardID$(h, j), 1, INSTR(cardID$(h, j), "#")) + "14"
        END IF
        FOR k = 1 TO noc
            IF j <> k THEN
                IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 OR a1 = 14 AND (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 = 1 THEN
                    kindcnt = kindcnt + 1: IF highkind < a1 OR highkind = 0 THEN highkind = a1
                END IF
            END IF
            IF kinds <= kindcnt THEN kinds = kindcnt + 1
        NEXT k
    NEXT j

    IF kinds = 4 THEN hand$ = "Four of a Kind": EXIT DO

    IF kinds = 3 THEN ' Look for full house.
        kinds = 0
        FOR j = 1 TO noc
            kindcnt = 0
            a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
            a1 = (a - 1) MOD 13 + 1
            FOR k = 1 TO noc
                IF j <> k AND a1 <> highkind THEN
                    IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 THEN
                        kindcnt = kindcnt + 1
                    END IF
                END IF
            NEXT k
            IF kinds < kindcnt THEN kinds = kindcnt + 1
        NEXT j
        IF kinds = 2 THEN
            hand$ = "Full House": EXIT DO
        ELSE
            hand$ = "Three of a Kind": EXIT DO
        END IF
    END IF

    IF kinds = 2 THEN
        ' Look for two pair.
        kinds = 0
        FOR j = 1 TO noc
            kindcnt = 0
            a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
            a1 = (a - 1) MOD 13 + 1
            FOR k = 1 TO noc
                IF j <> k AND a1 <> highkind THEN
                    IF a1 = 1 AND highkind = 14 THEN
                        ' Checks for ace as 1 here after previous highkind converion to 14.
                    ELSE
                        IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 THEN
                            kindcnt = kindcnt + 1
                        END IF
                    END IF
                END IF
            NEXT k
            IF kinds < kindcnt THEN kinds = kindcnt + 1
        NEXT j
        IF kinds = 2 THEN
            hand$ = "Two Pair": EXIT DO
        ELSE
            hand$ = "Pair": EXIT DO
        END IF
    END IF
    EXIT DO
LOOP
RETURN

getkey:
DO
    _LIMIT 30
    b$ = INKEY$
    IF LEN(b$) THEN
        IF b$ = CHR$(27) THEN SYSTEM
        IF b$ >= "1" AND b$ <= "9" THEN
            SELECT CASE VAL(b$)
                CASE 1: search$ = "Royal Flush"
                CASE 2: search$ = "Straight Flush"
                CASE 3: search$ = "Four of a Kind"
                CASE 4: search$ = "Full House"
                CASE 5: search$ = "Flush"
                CASE 6: search$ = "Straight"
                CASE 7: search$ = "Three of a Kind"
                CASE 8: search$ = "Two Pair"
                CASE 9: search$ = "Pair"
            END SELECT
            EXIT DO
        END IF
        EXIT DO
    END IF
LOOP
RETURN


$IF  THEN
        ---------Hearts
        1=A
        2
        3
        4
        5
        6
        7
        8
        9
        10
        11=J
        12=Q
        13=K
        ---------Diamonds
        14=A
        15=2
        16=3
        17=4
        18=5
        19=6
        20=7
        21=8
        22=9
        23=10
        24=J
        25=Q
        26=K
        ---------Clubs
        27=A
        28=2
        29=3
        30=4
        31=5
        32=6
        33=7
        34=8
        35=9
        36=10
        37=J
        38=Q
        39=K
        ---------Spades
        40=A
        41=2
        42=3
        43=4
        44=5
        45=6
        46=7
        47=8
        48=9
        49=10
        50=J
        51=Q
        52=K
        --------------------Test
        card = 13: i = 3: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 26: i = 4: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 39: i = 5: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 1: i = 1: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 14: i = 2: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
$END IF

Pete
Reply
#4
Thumbs Up 
(10-11-2022, 07:00 AM)PhilOfPerth Wrote:
(10-11-2022, 05:52 AM)bplus Wrote:
Code: (Select All)
' Poker.bas 2022-10-10 b+ try ranking hands
Dim Shared Order$
Order$ = " A 2 3 4 5 6 7 8 910 J Q K"
Dim Shared Deck$(52), rankCount(10)
makeDeck
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

shuffle
'For i = 1 To 52
'  Print i, Deck$(i)
'Next
'end

'make sure we detect rare occurances
h$ = " AC10C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " KS10S JS QS AS"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 3C JC QC KC"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AC 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
h$ = " AS 2C 3C 4C 5C"
Print h$; " = "; RankName$(Rank(h$))
Cls
tests = 10000000
While fini = 0
    For k = 0 To 9
        h$ = ""
        For i = 1 To 5
            h$ = h$ + Deck$(k * 5 + i)
        Next
        r = Rank(h$)
        rankCount(r) = rankCount(r) + 1
    Next
    hands = hands + 10
    If hands >= tests Then fini = 1 Else shuffle
    'input "Quit? ";a$
    'if a$ = "y" then fini = 1 else  shuffle
Wend
For i = 1 To 10
    Print rankCount(i); ", "; Int(rankCount(i) / tests * 100); "%, "; RankName$(i)
Next

Function RankName$ (RNumber)
    Select Case RNumber
        Case 1: RankName$ = "Royal Flush"
        Case 2: RankName$ = "Straight Flush"
        Case 3: RankName$ = "Four of a Kind"
        Case 4: RankName$ = "Full House"
        Case 5: RankName$ = "Flush"
        Case 6: RankName$ = "Straight"
        Case 7: RankName$ = "Three of a Kind"
        Case 8: RankName$ = "Two Pair"
        Case 9: RankName$ = "Pair"
        Case 10: RankName$ = "High Card"
    End Select
End Function

Function Rank (hand$)
    Dim arrange(13)
    For i = 1 To 5
        v$ = Mid$(hand$, i * 3 - 2, 2)
        f = (InStr(Order$, v$) + 1) / 2
        arrange(f) = arrange(f) + 1
    Next
    For i = 1 To 13
        Select Case arrange(i)
            Case 2: pair = pair + 1
            Case 3: three = 1
            Case 4: four = 1
        End Select
    Next
    If four = 1 Then Rank = 3: Exit Function
    If three = 1 And pair = 1 Then Rank = 4: Exit Function
    If three = 1 Then Rank = 7: Exit Function
    If pair = 2 Then Rank = 8: Exit Function
    If pair = 1 Then
        Rank = 9: Exit Function
    Else ' check flush and straight
        suit$ = Mid$(hand$, 3, 1): flush = 1
        For i = 2 To 5
            If Mid$(hand$, i * 3, 1) <> suit$ Then flush = 0: Exit For
        Next
        i = 1: straight = 1 ' find lowest card i
        While arrange(i) = 0
            i = i + 1
        Wend
        If i = 1 Then
            If arrange(10) = 1 And arrange(11) = 1 And arrange(12) = 1 And arrange(13) = 1 Then
                straight = 1: royal = 1: GoTo FinishRank
            End If
        End If
        If i >= 10 Then
            straight = 0
        Else
            straight = 1
            For j = i + 1 To i + 4 ' check next 4 cards in sequence
                If arrange(j) <> 1 Then straight = 0: Exit For
            Next
        End If
        FinishRank:
        If (straight = 1) And (flush = 1) And (royal = 1) Then Rank = 1: Exit Function
        If (straight = 1) And (flush = 1) Then Rank = 2: Exit Function
        If (flush = 1) Then Rank = 5: Exit Function
        If (straight = 1) Then
            Rank = 6
        Else
            Rank = 10
        End If
    End If
End Function

Sub shuffle
    For i = 52 To 2 Step -1
        r = Int(Rnd * i) + 1
        t$ = Deck$(i)
        Deck$(i) = Deck$(r)
        Deck$(r) = t$
    Next
End Sub

Sub makeDeck
    suit$ = "CDHS"
    For s = 1 To 4
        For i = 1 To 13
            Deck$((s - 1) * 13 + i) = Mid$(Order$, (i - 1) * 2 + 1, 2) + Mid$(suit$, s, 1)
        Next
    Next
End Sub

'      rank name   calc %   calc odds
'1data  "  Royal Flush", 0.000154, 649740
'2data  " Straight Flush", 0.00139 , 72193.33
'3data  " Four of a Kind", 0.0240 ,  4165
'4data  "   Full House", 0.144  ,  694.17
'5data  "     Flush", 0.197  ,  508.8
'6data  "    Straight", 0.392  ,  254.8
'7data  "Three of a Kind", 2.11  ,   47.3
'8data  "    Two Pair", 4.75  ,   21.03
'9data  "      Pair", 42.3   ,   2.36
'10 data  "   High Card", 50.1   ,   1.995
You beat me (again)!
I'm in the middle (or at least I've started) writing a game based on a similar algorithm.
I use this for shuffling:

for a=1 to 52 
swop=int (rnd*52)+1
swap deck$(a),deck$(swop)
next

Ha, didn't know we were racing but I have been with Basic Forums since 2014 that might be an advantage.

Your shuffle is allot better than my first shuffle routine that I thought the cat's meow when i posted my first at JB forum way back 2015 maybe? Then tsh73, Russian Computer Science teacher, showed me Fisher Yates Shuffle the most efficient known to computer scientists wow! so yours is really close https://en.wikipedia.org/wiki/Fisher–Yates_shuffle

The one I use in Ranking is directly from JB and they don't have swap so you need to hold a value in temp variable for swap.
Code: (Select All)
Sub shuffle
    For i = 52 To 2 Step -1
        r = Int(Rnd * i) + 1
        t$ = Deck$(i)
        Deck$(i) = Deck$(r)
        Deck$(r) = t$
    Next
End Sub

For QB64pe mod to
Code: (Select All)
Sub shuffle ' for 1 to 52 cards as string in Shared Deck$
    For i = 52 To 2 Step -1
        Swap Deck$(i), Deck$(Int(Rnd * i) + 1) ' random from 1 to i inclusive,
        ' Steve showed me to do random directly without variable assignment
    Next
End Sub
 
Hope to pass tsh73 and Steve advice along to you all Smile

Thumbs up to Phil for giving me that opportunity.
b = b + ...
Reply
#5
(10-11-2022, 08:54 AM)Pete Wrote: I made one of those for Pecos Pete Poker.

The evaluator demo...

Code: (Select All)
' Jacks or better poker evaluator demo.
' Use keys 1 - 9 to search for particular hands, Royal Flush, Full HOuse, etc.
sw% = 55
sh% = 17
WIDTH sw%, sh%
PALETTE 7, 63
COLOR 0, 7: CLS
fontpath$ = ENVIRON$("SYSTEMROOT") + "\fonts\lucon.ttf"
font& = _LOADFONT(fontpath$, 40, "monospace")
_FONT font&
_DELAY .25
_SCREENMOVE 0, 0
msg$ = "Poker Hand Evaluator"
LOCATE 1, (sw% / 2) - (LEN(msg$) / 2): PRINT msg$;
msg$ = "Any Key or 1=RF 2=SF 3=4K 4=FH 5=F 6=S 7=3K 8=2P 9=P"
LOCATE sh%, (sw% / 2) - (LEN(msg$) / 2): PRINT msg$;
VIEW PRINT 3 TO sh% - 2: LOCATE 4, 1

h = 1 ' Number of hands.
noc = 5 ' Number of card.

DO
    REDIM cardID$(1, 5)
    REDIM taken(5)
    FOR i = 1 TO noc
        DO
            card = INT(RND * 52) + 1
            FOR j = 1 TO i
                IF taken(j) = card THEN flag = -1: EXIT FOR
            NEXT
            IF flag = 0 THEN taken(i) = card: EXIT DO ELSE flag = 0
        LOOP
        cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
    NEXT

    IF POS(0) > 3 OR CSRLIN > 4 THEN PRINT: PRINT: PRINT: LOCATE CSRLIN - 1

    LOCATE , 3

    FOR j = 1 TO 5
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        x$ = LTRIM$(STR$(a1))
        b = (a + 12) \ 13
        suite$ = CHR$(2 + b)
        REM PRINT x$; suite$; "  ";
        IF suite$ = CHR$(3) OR suite$ = CHR$(4) THEN COLOR 4 ELSE COLOR 0
        SELECT CASE VAL(x$)
            CASE 1: PRINT "A"; suite$; "   ";
            CASE 13: PRINT "K"; suite$; "   ";
            CASE 12: PRINT "Q"; suite$; "   ";
            CASE 11: PRINT "J"; suite$; "   ";
            CASE 10: PRINT "10"; suite$; "  ";
            CASE ELSE: PRINT LTRIM$(STR$(VAL(x$))); suite$; "   ";
        END SELECT
    NEXT

    GOSUB eval

    COLOR 1
    LOCATE , 28
    IF hand$ = "Pair" THEN
        IF highkind >= 11 THEN COLOR 1: PRINT hand$; " (Pay Out)"; ELSE COLOR 8: PRINT hand$;
    ELSE
        PRINT hand$;
    END IF
    COLOR 1

    IF search$ = "" THEN GOSUB getkey ELSE IF INKEY$ = CHR$(27) THEN search$ = ""

    IF LEN(search$) THEN
        IF hand$ = search$ THEN SLEEP: search$ = ""
    END IF

LOOP
END

eval:
hand$ = ""
DO
    ' Look for flush, same suit.
    samesuit = 0
    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        b = (a + 12) \ 13
        IF j > 1 AND b <> samesuit THEN flag = -1: EXIT FOR
        samesuit = b
    NEXT
    IF flag = 0 THEN
        ' Flush or better.
        hand$ = "Flush"
    ELSE
        flag = 0
    END IF

    ' Look for staright, sequential order.
    high = 0: low = 0: match$ = ""
    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        match$ = match$ + CHR$(a1 + 64)
    NEXT
    IF INSTR(match$, CHR$(1 + 64)) THEN
        IF INSTR(match$, CHR$(13 + 64)) THEN high = 14 ' Ace high straight possible.
    END IF

    FOR j = 1 TO noc
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        IF j > 1 AND INSTR(match$, CHR$(a1 + 64)) <> j THEN match$ = "": EXIT FOR
        IF low = 0 OR low > a1 THEN
            IF a1 = 1 AND high = 14 THEN ELSE low = a1
        END IF
        IF high = 0 OR high < a1 THEN high = a1
    NEXT

    IF LEN(match$) AND high - low = noc - 1 THEN
        IF hand$ = "Flush" THEN
            IF high = 14 THEN
                hand$ = "Royal Flush"
            ELSE
                hand$ = "Straight Flush": EXIT DO
            END IF
        ELSE
            hand$ = "Straight": EXIT DO
        END IF
    END IF

    ' Look for number of kinds.
    kinds = 1: highkind = -1
    FOR j = 1 TO noc
        kindcnt = 0
        a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
        a1 = (a - 1) MOD 13 + 1
        IF a1 = 1 THEN ' Convert ace high.
            a1 = 14
            '' cardID$(h, j) = MID$(cardID$(h, j), 1, INSTR(cardID$(h, j), "#")) + "14"
        END IF
        FOR k = 1 TO noc
            IF j <> k THEN
                IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 OR a1 = 14 AND (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 = 1 THEN
                    kindcnt = kindcnt + 1: IF highkind < a1 OR highkind = 0 THEN highkind = a1
                END IF
            END IF
            IF kinds <= kindcnt THEN kinds = kindcnt + 1
        NEXT k
    NEXT j

    IF kinds = 4 THEN hand$ = "Four of a Kind": EXIT DO

    IF kinds = 3 THEN ' Look for full house.
        kinds = 0
        FOR j = 1 TO noc
            kindcnt = 0
            a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
            a1 = (a - 1) MOD 13 + 1
            FOR k = 1 TO noc
                IF j <> k AND a1 <> highkind THEN
                    IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 THEN
                        kindcnt = kindcnt + 1
                    END IF
                END IF
            NEXT k
            IF kinds < kindcnt THEN kinds = kindcnt + 1
        NEXT j
        IF kinds = 2 THEN
            hand$ = "Full House": EXIT DO
        ELSE
            hand$ = "Three of a Kind": EXIT DO
        END IF
    END IF

    IF kinds = 2 THEN
        ' Look for two pair.
        kinds = 0
        FOR j = 1 TO noc
            kindcnt = 0
            a = VAL(MID$(cardID$(h, j), INSTR(cardID$(h, j), "#") + 1))
            a1 = (a - 1) MOD 13 + 1
            FOR k = 1 TO noc
                IF j <> k AND a1 <> highkind THEN
                    IF a1 = 1 AND highkind = 14 THEN
                        ' Checks for ace as 1 here after previous highkind converion to 14.
                    ELSE
                        IF a1 = (VAL(MID$(cardID$(h, k), INSTR(cardID$(h, k), "#") + 1)) - 1) MOD 13 + 1 THEN
                            kindcnt = kindcnt + 1
                        END IF
                    END IF
                END IF
            NEXT k
            IF kinds < kindcnt THEN kinds = kindcnt + 1
        NEXT j
        IF kinds = 2 THEN
            hand$ = "Two Pair": EXIT DO
        ELSE
            hand$ = "Pair": EXIT DO
        END IF
    END IF
    EXIT DO
LOOP
RETURN

getkey:
DO
    _LIMIT 30
    b$ = INKEY$
    IF LEN(b$) THEN
        IF b$ = CHR$(27) THEN SYSTEM
        IF b$ >= "1" AND b$ <= "9" THEN
            SELECT CASE VAL(b$)
                CASE 1: search$ = "Royal Flush"
                CASE 2: search$ = "Straight Flush"
                CASE 3: search$ = "Four of a Kind"
                CASE 4: search$ = "Full House"
                CASE 5: search$ = "Flush"
                CASE 6: search$ = "Straight"
                CASE 7: search$ = "Three of a Kind"
                CASE 8: search$ = "Two Pair"
                CASE 9: search$ = "Pair"
            END SELECT
            EXIT DO
        END IF
        EXIT DO
    END IF
LOOP
RETURN


$IF  THEN
        ---------Hearts
        1=A
        2
        3
        4
        5
        6
        7
        8
        9
        10
        11=J
        12=Q
        13=K
        ---------Diamonds
        14=A
        15=2
        16=3
        17=4
        18=5
        19=6
        20=7
        21=8
        22=9
        23=10
        24=J
        25=Q
        26=K
        ---------Clubs
        27=A
        28=2
        29=3
        30=4
        31=5
        32=6
        33=7
        34=8
        35=9
        36=10
        37=J
        38=Q
        39=K
        ---------Spades
        40=A
        41=2
        42=3
        43=4
        44=5
        45=6
        46=7
        47=8
        48=9
        49=10
        50=J
        51=Q
        52=K
        --------------------Test
        card = 13: i = 3: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 26: i = 4: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 39: i = 5: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 1: i = 1: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
        card = 14: i = 2: cardID$(h, i) = LTRIM$(STR$(y)) + "|" + LTRIM$(STR$(scol + (i - 1) * 120 + x)) + "#" + LTRIM$(STR$(card))
$END IF

Pete

Hope to study this now that I've done one myself first, pickup some tips from an experienced Poker coder!

Thumbs up to you in advance because I am that sure there will be at least one thing in there I could use.
b = b + ...
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#6
I've always wanted to create a clone of the late 1980's/early 1990's video poker machines found in Vegas at the time. Thanks for posting this code. I've been looking for a project to add to the tutorial that walks the user from start to finish creating a working game. Perhaps a video poker machine would be a good project.
Reply
#7
This ranking system is nice start but when pairs are 42% of hands, you need to sort out the better eg, 2 players have a pair of 2's and an Ace high card? Who wins? Or both players have an Ace high card, do you look at suit of Ace or next highest card?

Comment on Terry's: If I did a Poker Machine, I think I would like to play against 3 or 4 AI's. Yeah since slots was Pete's...

Oh, maybe make a game with Plug-In-And-Play AI's to represent yourself at table, so everyone can try out their own AI.

Update: Just realized you only need an AI for Draw Poker with option to swap up to 3 cards with deck. And just being good at that makes world class poker players?
b = b + ...
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#8
(10-11-2022, 02:11 PM)TerryRitchie Wrote: I've always wanted to create a clone of the late 1980's/early 1990's video poker machines found in Vegas at the time. Thanks for posting this code. I've been looking for a project to add to the tutorial that walks the user from start to finish creating a working game. Perhaps a video poker machine would be a good project.

@TerryRitchie,

I forgot I also had the poker slots game posted here: https://staging.qb64phoenix.com/showthre...66#pid2466

You are welcome to add it to your tutorial site, if you like.

Can you believe Bob hand designed those playing cards as bitmaps? The man's a real talent, well, for someone who doesn't program in SCREEN 0, that is.

Pete
Reply
#9
(10-12-2022, 09:03 AM)Pete Wrote:
(10-11-2022, 02:11 PM)TerryRitchie Wrote: I've always wanted to create a clone of the late 1980's/early 1990's video poker machines found in Vegas at the time. Thanks for posting this code. I've been looking for a project to add to the tutorial that walks the user from start to finish creating a working game. Perhaps a video poker machine would be a good project.

@TerryRitchie,

I forgot I also had the poker slots game posted here: https://staging.qb64phoenix.com/showthre...66#pid2466

You are welcome to add it to your tutorial site, if you like.

Can you believe Bob hand designed those playing cards as bitmaps? The man's a real talent, well, for someone who doesn't program in SCREEN 0, that is.

Pete

Added it a few days ago.

https://www.qb64tutorial.com/games#h.6a3o4uul50i

Same game correct?

Terry
Reply
#10
Yeah I was wondering if Pete was having a senior moment?

And @Pete I was wondering about this:
Code: (Select All)
$IF  THEN
        ---------Hearts
        1=A
        2
        3
        4
        5
        6
        7
        8
        9
        10
        11=J
        12=Q

    ... at the end of your code

As a way to code a comment without a ' block? If not, what is that doing?
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