; Heads-up no-limit Hold'em: real shuffled deck, four betting streets, no console.
InitNativePoker3D PROC
    mov cardExitActive3D, 0
    call LoadCardTableAssets3D
    test eax, eax
    jz @F
    mov pkState3D, PK_IDLE
    mov pkError3D, 0
    mov pkPot3D, 0
    mov pkAiMessage3D, 0
    mov pkStreet3D, 0
    mov pkBoardCount3D, 0
    mov pkResult3D, 0
    mov pkChipTimer3D, 320
    call ClearKeys3D
    mov eax, 1
@@:
    ret
InitNativePoker3D ENDP

PokerPay3D PROC uses ebx actor:DWORD,amount:DWORD
    mov ebx, actor
    mov eax, amount
    mov edx, bankroll
    test ebx, ebx
    jz @F
    mov edx, pkStack3D
@@:
    cmp eax, edx
    jbe @F
    mov eax, edx
@@:
    test ebx, ebx
    jnz poker_pay_dealer
    sub bankroll, eax
    jmp poker_pay_pot
poker_pay_dealer:
    sub pkStack3D, eax
poker_pay_pot:
    add pkPaid3D[ebx*4], eax
    add pkPot3D, eax
    mov pkChipAmount3D, eax
    mov pkChipActor3D, ebx
    mov pkChipTimer3D, 0
    ret
PokerPay3D ENDP

StartNativePoker3D PROC uses ebx esi
    cmp pkState3D, PK_IDLE
    je @F
    cmp pkState3D, PK_RESULT
    jne poker_start_done
@@:
    mov eax, bankroll
    cmp eax, pkBlind3D
    jb poker_start_empty
    mov pkStack3D, eax
    xor pkButton3D, 1
    mov pkStreet3D, 0
    mov pkPot3D, 0
    mov pkPaid3D[0], 0
    mov pkPaid3D[4], 0
    mov pkActed3D[0], 0
    mov pkActed3D[4], 0
    mov pkRaisedCount3D, 0
    mov pkCanRaise3D, 1
    mov pkBoardCount3D, 0
    mov pkOldBoardCount3D, 0
    mov pkCursor3D, 4
    mov pkResult3D, 0
    mov pkError3D, 0
    mov pkAiMessage3D, 0
    mov eax, pkBlind3D
    mov pkMinRaise3D, eax
    mov pkRaise3D, eax
    mov pkCurrent3D, eax
    invoke ShuffleCards3D, OFFSET pkDeck3D
    mov esi, pkButton3D
    xor esi, 1
    shl esi, 3 ; first card goes to the non-button player
    mov ebx, esi
    xor ebx, 8
    mov eax, pkDeck3D[0]
    mov pkHole3D[esi], eax
    mov eax, pkDeck3D[4]
    mov pkHole3D[ebx], eax
    mov eax, pkDeck3D[8]
    mov pkHole3D[esi+4], eax
    mov eax, pkDeck3D[12]
    mov pkHole3D[ebx+4], eax
    mov ebx, pkButton3D
    mov eax, pkBlind3D
    shr eax, 1
    invoke PokerPay3D, ebx, eax
    xor ebx, 1
    invoke PokerPay3D, ebx, pkBlind3D
    mov eax, pkButton3D
    mov pkTurn3D, eax
    mov pkTimer3D, 0
    mov pkState3D, PK_DEAL
    call ClearKeys3D
    invoke PlayCasinoSound3D, OFFSET soundCards, 0, 1
    call SaveProgress3D
poker_start_done:
    ret
poker_start_empty:
    mov pkError3D, 1
    ret
StartNativePoker3D ENDP

PokerNextTurn3D PROC actor:DWORD
    mov eax, pkPaid3D[0]
    cmp eax, pkPaid3D[4]
    jne poker_switch_turn
    cmp bankroll, 0
    je poker_finish_street
    cmp pkStack3D, 0
    je poker_finish_street
    cmp pkActed3D[0], 0
    je poker_switch_turn
    cmp pkActed3D[4], 0
    jne poker_finish_street
poker_switch_turn:
    mov eax, actor
    xor eax, 1
    mov pkTurn3D, eax
    mov pkTimer3D, 0
    mov pkState3D, PK_PLAYER
    call ClearKeys3D
    mov eax, pkTurn3D
    test eax, eax
    jz @F
    mov pkState3D, PK_AI
@@:
    ret
poker_finish_street:
    call PokerNextStreet3D
    ret
PokerNextTurn3D ENDP

PokerCall3D PROC uses ebx esi actor:DWORD
    mov pkError3D, 0
    mov ebx, actor
    mov eax, pkCurrent3D
    sub eax, pkPaid3D[ebx*4]
    invoke PokerPay3D, ebx, eax
    mov pkActed3D[ebx*4], 1
    ; Heads-up unmatched all-in excess is returned; no phantom side pot.
    mov eax, pkPaid3D[ebx*4]
    cmp eax, pkCurrent3D
    jae poker_call_next
    mov esi, ebx
    xor esi, 1
    mov edx, pkPaid3D[esi*4]
    sub edx, eax
    sub pkPot3D, edx
    mov pkPaid3D[esi*4], eax
    mov pkCurrent3D, eax
    test esi, esi
    jnz @F
    add bankroll, edx
    jmp poker_call_next
@@:
    add pkStack3D, edx
poker_call_next:
    invoke PlayCasinoSound3D, OFFSET soundClick, 0, 1
    invoke PokerNextTurn3D, ebx
    ret
PokerCall3D ENDP

PokerRaise3D PROC uses ebx esi edi actor:DWORD,extra:DWORD
    local owed:DWORD,available:DWORD
    cmp pkCanRaise3D, 0
    je poker_raise_done
    mov ebx, actor
    mov esi, ebx
    xor esi, 1
    mov eax, pkCurrent3D
    sub eax, pkPaid3D[ebx*4]
    mov owed, eax
    mov eax, bankroll
    test ebx, ebx
    jz @F
    mov eax, pkStack3D
@@:
    mov available, eax
    mov edi, extra
    add edi, owed
    cmp edi, eax
    jbe @F
    mov edi, eax
@@:
    ; Never ask the opponent to cover more than their effective stack.
    mov eax, bankroll
    test esi, esi
    jz @F
    mov eax, pkStack3D
@@:
    add eax, pkPaid3D[esi*4]
    sub eax, pkPaid3D[ebx*4]
    cmp edi, eax
    jbe @F
    mov edi, eax
@@:
    cmp edi, owed
    jbe poker_raise_as_call
    mov eax, edi
    sub eax, owed
    cmp eax, pkMinRaise3D
    jae poker_full_raise
    cmp edi, available
    jne poker_raise_invalid
    ; A short all-in does not reopen raising for a player who already acted.
    mov pkCanRaise3D, 0
    jmp poker_commit_raise
poker_full_raise:
    mov pkMinRaise3D, eax
    mov pkRaise3D, eax
    mov pkActed3D[esi*4], 0
    mov pkCanRaise3D, 1
poker_commit_raise:
    mov pkError3D, 0
    invoke PokerPay3D, ebx, edi
    mov eax, pkPaid3D[ebx*4]
    mov pkCurrent3D, eax
    mov pkActed3D[ebx*4], 1
    inc pkRaisedCount3D
    invoke PlayCasinoSound3D, OFFSET soundClick, 0, 1
    invoke PokerNextTurn3D, ebx
poker_raise_done:
    ret
poker_raise_invalid:
    cmp actor, 0
    jne poker_raise_as_call
    mov pkError3D, 2
    ret
poker_raise_as_call:
    cmp actor, 1
    jne @F
    mov pkAiMessage3D, 1
    cmp owed, 0
    je @F
    mov pkAiMessage3D, 2
@@:
    invoke PokerCall3D, ebx
    ret
PokerRaise3D ENDP

PokerFold3D PROC actor:DWORD
    cmp pkState3D, PK_RESULT
    je poker_fold_done
    mov pkResult3D, 0
    mov pkOutcome3D, 1
    cmp actor, 0
    je poker_fold_player
    mov eax, pkPot3D
    add bankroll, eax
    mov pkOutcome3D, 0
    invoke PlayCasinoSound3D, OFFSET soundRoundWin, 0, 1
    jmp poker_fold_settled
poker_fold_player:
    mov eax, pkPot3D
    add pkStack3D, eax
    invoke TriggerCharmLossProtection, pkPaid3D[0]
    test eax, eax
    jnz poker_fold_settled
    invoke PlayCasinoSound3D, OFFSET soundRoundLose, 0, 1
poker_fold_settled:
    mov pkState3D, PK_RESULT
    call ClearKeys3D
    xor eax,eax
    cmp pkOutcome3D,0
    sete al
    invoke NpcRecordRound3D,2,eax
    call SaveProgress3D
poker_fold_done:
    ret
PokerFold3D ENDP

PokerNextStreet3D PROC uses ebx esi
    cmp pkStreet3D, 3
    je poker_begin_reveal
    inc pkStreet3D
    mov eax, pkBoardCount3D
    mov pkOldBoardCount3D, eax
    mov eax, pkStreet3D
    add eax, 2
    mov pkBoardCount3D, eax
    inc pkCursor3D ; burn one card before each board street
    mov esi, pkOldBoardCount3D
poker_deal_board:
    mov ebx, pkCursor3D
    mov eax, pkDeck3D[ebx*4]
    mov pkBoard3D[esi*4], eax
    inc pkCursor3D
    inc esi
    cmp esi, pkBoardCount3D
    jb poker_deal_board
    mov pkPaid3D[0], 0
    mov pkPaid3D[4], 0
    mov pkActed3D[0], 0
    mov pkActed3D[4], 0
    mov pkCurrent3D, 0
    mov pkRaisedCount3D, 0
    mov pkCanRaise3D, 1
    mov eax, pkBlind3D
    mov pkMinRaise3D, eax
    mov pkRaise3D, eax
    mov eax, pkButton3D
    xor eax, 1
    mov pkTurn3D, eax
    mov pkTimer3D, 0
    mov pkState3D, PK_BOARD
    invoke PlayCasinoSound3D, OFFSET soundCards, 0, 1
    ret
poker_begin_reveal:
    mov pkTimer3D, 0
    mov pkState3D, PK_REVEAL
    ret
PokerNextStreet3D ENDP

PokerShowdown3D PROC uses ebx esi edi
    cmp pkState3D, PK_RESULT
    je poker_showdown_done
    xor ebx, ebx
poker_evaluate_player:
    lea edi, pkEvalHand3D
    lea esi, pkHole3D[ebx*8]
    movsd
    movsd
    lea esi, pkBoard3D
    mov ecx, 5
    rep movsd
    invoke EvaluateNativePoker3D, OFFSET pkEvalHand3D, 7
    mov pkScore3D[ebx*4], eax
    inc ebx
    cmp ebx, 2
    jb poker_evaluate_player
    mov pkResult3D, 1
    mov eax, pkScore3D[0]
    cmp eax, pkScore3D[4]
    ja poker_showdown_lose
    je poker_showdown_tie
    mov eax, pkPot3D
    add bankroll, eax
    mov pkOutcome3D, 0
    invoke PlayCasinoSound3D, OFFSET soundRoundWin, 0, 1
    jmp poker_showdown_settled
poker_showdown_lose:
    mov eax, pkPot3D
    add pkStack3D, eax
    mov pkOutcome3D, 1
    invoke TriggerCharmLossProtection, pkPaid3D[0]
    test eax, eax
    jnz poker_showdown_settled
    invoke PlayCasinoSound3D, OFFSET soundRoundLose, 0, 1
    jmp poker_showdown_settled
poker_showdown_tie:
    mov eax, pkPot3D
    shr eax, 1
    mov edx, pkPot3D
    and edx, 1
    cmp pkButton3D, 1
    jne @F
    add eax, edx ; odd chip goes to the non-button player
@@:
    add bankroll, eax
    mov edx, pkPot3D
    sub edx, eax
    add pkStack3D, edx
    mov pkOutcome3D, 2
poker_showdown_settled:
    mov pkState3D, PK_RESULT
    call ClearKeys3D
    xor eax,eax
    cmp pkOutcome3D,0
    sete al
    invoke NpcRecordRound3D,2,eax
    call SaveProgress3D
poker_showdown_done:
    ret
PokerShowdown3D ENDP

; The AI sees only its two cards and the already exposed board. No player cards/future deck.
PokerAIDecide3D PROC
    invoke PokerBotAct3D,1
    ret
PokerAIDecide3D ENDP

PokerBotAct3D PROC uses ebx esi edi actor:DWORD
    local strength:DWORD,owed:DWORD
    mov eax, pkCurrent3D
    mov ecx,actor
    sub eax, pkPaid3D[ecx*4]
    mov owed, eax
    cmp pkBoardCount3D, 3
    jae poker_ai_postflop
    mov ebx,actor
    shl ebx,3
    mov eax, pkHole3D[ebx]
    xor edx, edx
    mov ecx, 13
    div ecx
    mov esi, edx
    mov eax, pkHole3D[ebx+4]
    xor edx, edx
    div ecx
    mov strength, 0
    cmp esi, edx
    je poker_ai_pair
    cmp esi, 8
    jb @F
    inc strength
@@:
    cmp edx, 8
    jb poker_ai_odds
    inc strength
    jmp poker_ai_odds
poker_ai_pair:
    mov strength, 3
    cmp esi, 7
    jb poker_ai_odds
    mov strength, 5
    jmp poker_ai_odds
poker_ai_postflop:
    lea edi, pkEvalHand3D
    mov eax,actor
    lea esi, pkHole3D[eax*8]
    movsd
    movsd
    lea esi, pkBoard3D
    mov ecx, pkBoardCount3D
    rep movsd
    mov eax, pkBoardCount3D
    add eax, 2
    invoke EvaluateNativePoker3D, OFFSET pkEvalHand3D, eax
    invoke NativePokerClass3D, eax
    inc eax
    mov strength, eax
poker_ai_odds:
    invoke RandomRange3D, 100
    mov ebx, eax
    cmp owed, 0
    je poker_ai_consider_raise
    mov eax, pkBlind3D
    imul eax, 2
    cmp owed, eax
    jbe poker_ai_small_call
    cmp strength, 3
    jae poker_ai_consider_raise
    cmp ebx, 18
    jb poker_ai_call
    jmp poker_ai_fold
poker_ai_small_call:
    cmp strength, 1
    jae poker_ai_consider_raise
    cmp ebx, 32
    jb poker_ai_fold
poker_ai_consider_raise:
    cmp pkCanRaise3D, 0
    je poker_ai_call
    cmp pkRaisedCount3D, 2
    jae poker_ai_call
    mov eax,bankroll
    cmp actor,1
    je @F
    mov eax,pkStack3D
@@:
    cmp eax, 0
    je poker_ai_call
    cmp strength, 3
    jae poker_ai_strong_raise
    cmp ebx, 9
    jae poker_ai_call
    jmp poker_ai_raise
poker_ai_strong_raise:
    cmp ebx, 62
    jae poker_ai_call
poker_ai_raise:
    mov pkAiMessage3D, 3
    invoke PokerRaise3D, actor, pkMinRaise3D
    ret
poker_ai_fold:
    mov pkAiMessage3D, 4
    invoke PokerFold3D, actor
    ret
poker_ai_call:
    mov pkAiMessage3D, 1
    cmp owed, 0
    je @F
    mov pkAiMessage3D, 2
@@:
    invoke PokerCall3D, actor
    ret
PokerBotAct3D ENDP

HandleNativePoker3D PROC uses ebx
    call HandleCardExit3D
    test eax, eax
    jnz poker_input_done
    invoke CardTableMouse3D, MODE_POKER
    cmp cardExitActive3D, 0
    jne poker_input_done
    cmp engineMode, MODE_POKER
    jne poker_input_done
    cmp pkChipTimer3D, 320
    jae @F
    mov eax, deltaTime3D
    add pkChipTimer3D, eax
@@:
    cmp pkState3D, PK_IDLE
    je poker_ready_input
    cmp pkState3D, PK_RESULT
    je poker_ready_input
    cmp pkState3D, PK_PLAYER
    je poker_player_input
    mov eax, deltaTime3D
    add pkTimer3D, eax
    cmp pkState3D, PK_AI
    jne poker_animate_deal
    cmp pkTimer3D, 650
    jb poker_input_done
    call PokerAIDecide3D
    ret
poker_animate_deal:
    cmp pkState3D, PK_REVEAL
    jne @F
    cmp pkTimer3D, 650
    jb poker_input_done
    call PokerShowdown3D
    ret
@@:
    mov eax, TABLE_FLIGHT_MS*4
    cmp pkState3D, PK_DEAL
    je poker_animation_limit
    mov eax, pkBoardCount3D
    sub eax, pkOldBoardCount3D
    imul eax, TABLE_FLIGHT_MS
poker_animation_limit:
    cmp pkTimer3D, eax
    jb poker_input_done
    mov pkTimer3D, 0
    cmp pkState3D, PK_BOARD
    jne poker_begin_turn
    cmp bankroll, 0
    je poker_runout
    cmp pkStack3D, 0
    je poker_runout
poker_begin_turn:
    mov pkState3D, PK_PLAYER
    call ClearKeys3D
    cmp pkTurn3D, 0
    je poker_input_done
    mov pkState3D, PK_AI
    ret
poker_runout:
    call PokerNextStreet3D
    ret
poker_ready_input:
    invoke Pressed3D, 26h
    test eax, eax
    jz @F
    cmp pkBlind3D, 1000
    jae @F
    add pkBlind3D, 50
@@:
    invoke Pressed3D, 28h
    test eax, eax
    jz @F
    cmp pkBlind3D, 50
    jbe @F
    sub pkBlind3D, 50
@@:
    cmp tournamentMode, 1
    jne poker_regular_start
    cmp pkState3D, PK_RESULT
    jne poker_regular_start
    invoke Pressed3D, 20h
    test eax, eax
    jnz poker_tourney_report
    invoke Pressed3D, 0Dh
    test eax, eax
    jnz poker_tourney_report
    ret
poker_tourney_report:
    cmp pkOutcome3D, 1
    je poker_tourney_loss
    invoke TowerReportRoundOutcome, 1
    ret
poker_tourney_loss:
    invoke TowerReportRoundOutcome, 2
    ret
poker_regular_start:
    invoke Pressed3D, 20h
    test eax, eax
    jz poker_input_done
    call StartNativePoker3D
    ret
poker_player_input:
    invoke Pressed3D, 41h
    test eax, eax
    jz @F
    invoke PokerRaise3D, 0, bankroll
    ret
@@:
    invoke Pressed3D, 26h
    test eax, eax
    jz @F
    cmp pkRaise3D, 50000
    jae @F
    mov eax, pkBlind3D
    add pkRaise3D, eax
@@:
    invoke Pressed3D, 28h
    test eax, eax
    jz @F
    mov eax, pkMinRaise3D
    cmp pkRaise3D, eax
    jbe @F
    mov eax, pkBlind3D
    sub pkRaise3D, eax
    mov eax, pkMinRaise3D
    cmp pkRaise3D, eax
    jae @F
    mov pkRaise3D, eax
@@:
    invoke Pressed3D, 46h
    test eax, eax
    jz @F
    invoke PokerFold3D, 0
    ret
@@:
    invoke Pressed3D, 52h
    test eax, eax
    jz @F
    invoke PokerRaise3D, 0, pkRaise3D
    ret
@@:
    invoke Pressed3D, 43h
    test eax, eax
    jnz poker_player_call
    invoke Pressed3D, 20h
    test eax, eax
    jz poker_input_done
poker_player_call:
    invoke PokerCall3D, 0
poker_input_done:
    ret
HandleNativePoker3D ENDP