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Swindlestones: a game of liar's dice from the city of Kharé
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| #story: Swindlestones | |
| #author: Jon Ingold | |
| // Play this example online: https://7zjr87zk.play.borogove.io/ | |
| LIST Dice = | |
| MeA1 = 11, MeA2, MeA3, MeA4, | |
| MeB1 = 21, MeB2, MeB3, MeB4, | |
| MeC1 = 31, MeC2, MeC3, MeC4, | |
| MeD1 = 41, MeD2, MeD3, MeD4, | |
| MeE1 = 51, MeE2, MeE3, MeE4, | |
| ThemA1 = 61, ThemA2, ThemA3, ThemA4, | |
| ThemB1 = 71, ThemB2, ThemB3, ThemB4, | |
| ThemC1 = 81, ThemC2, ThemC3, ThemC4, | |
| ThemD1 = 91, ThemD2, ThemD3, ThemD4, | |
| ThemE1 = 101, ThemE2, ThemE3, ThemE4 | |
| LIST Players = Me = 10, Them = 60 | |
| VAR DiceCountMe = 5 | |
| VAR DiceCountThem = 5 | |
| CONST DEBUG_FIXED_RANDOM = true // false | |
| CONST DEBUG_AI_DECISIONS = false // true | |
| ~ reseed() | |
| -> begin_game -> END | |
| /* | |
| Auxilary functions | |
| */ | |
| VAR randomSeed = 3 | |
| === function reseed() | |
| {DEBUG_FIXED_RANDOM: | |
| ~ SEED_RANDOM(randomSeed) | |
| ~ randomSeed += 17 | |
| } | |
| === function pop(ref _list) | |
| ~ temp el = LIST_MIN(_list) | |
| ~ _list -= el | |
| ~ return el | |
| === function came_from(-> x) | |
| ~ return TURNS_SINCE(x) == 0 | |
| === function print_number(x) | |
| { x: | |
| - 0: zero | |
| - 1: one | |
| - 2: two | |
| - 3: three | |
| - 4: four | |
| - 5: five | |
| - 6: six | |
| - 7: seven | |
| - 8: eight | |
| - 9: nine | |
| - 10: ten | |
| } | |
| /* | |
| Dice | |
| */ | |
| === function faceValue(dice) | |
| ~ return LIST_VALUE(dice) mod 10 | |
| /* | |
| Printing | |
| */ | |
| === function stateDiceFor(who) | |
| ~ temp dice = diceForPlayer(who) | |
| <b>{listDice(dice)}</b> | |
| === function listDice(dice) | |
| {_listDice(dice, 1)} | |
| === function _listDice(dice, val) | |
| ~ temp values = valuesIn(val, dice) | |
| ~ temp count = LIST_COUNT(values) | |
| { count > 0: | |
| {print_number(count)} {val}{count > 1:s} | |
| ~ dice -= values | |
| } | |
| {dice: | |
| { count > 0: | |
| { countValuesIn(faceValue(LIST_MIN(dice)), dice) == LIST_COUNT(dice): | |
| <> and | |
| - else: | |
| <>, | |
| } | |
| } | |
| <> { _listDice(dice, val+1) } | |
| } | |
| /* | |
| Queries | |
| */ | |
| === function countValuesFor(value, who) | |
| ~ temp dice = diceForPlayer(who) | |
| ~ return LIST_COUNT(valuesIn(value, dice)) | |
| === function countValuesIn(value, dice) | |
| ~ return LIST_COUNT(valuesIn(value, dice)) | |
| === function valuesIn(value, dice) | |
| ~ temp lowestDice = pop(dice) | |
| { lowestDice: | |
| ~ temp retVal = () | |
| {faceValue(lowestDice) == value: | |
| ~ retVal = lowestDice | |
| } | |
| ~ return retVal + valuesIn(value, dice) | |
| } | |
| ~ return () | |
| === function diceCountForPlayer(who) | |
| { who : | |
| - Me: ~ return DiceCountMe | |
| - Them: ~ return DiceCountThem | |
| } | |
| === function diceForPlayer(who) | |
| ~ return LIST_RANGE(Dice, LIST_VALUE(who), LIST_VALUE(who) + 10 * diceCountForPlayer(who)) | |
| /* | |
| Rolling | |
| */ | |
| === function rollDice() | |
| ~ reseed() | |
| ~ Dice = () | |
| ~ rollDiceFor(Me, DiceCountMe) | |
| ~ rollDiceFor(Them, DiceCountThem) | |
| === function rollDiceFor(who, diceNumber) | |
| { diceNumber > 0: | |
| ~ temp diceOffset = LIST_VALUE(who) + (diceNumber - 1) * 10 + RANDOM(1, 4) | |
| ~ Dice += Dice(diceOffset) | |
| ~ rollDiceFor(who, diceNumber - 1) | |
| } | |
| /* | |
| The current bet | |
| Bets are recorded using the same dice list items, with the increasing value of the list item representing the number of dice in the bet. | |
| */ | |
| === function stateBet(bet) | |
| {print_number(betCount(bet))} {betNumber(bet)}{betCount(bet) > 1:s} | |
| === function betNumber(bet) | |
| ~ return LIST_VALUE(bet) mod 10 | |
| === function betCount(bet) | |
| ~ return FLOOR(LIST_VALUE(bet) / 10) | |
| === function possibleBets() | |
| ~ return LIST_RANGE(LIST_ALL(Dice), LIST_VALUE(lastBet) + 1, (DiceCountMe + DiceCountThem) * 10 + 4) | |
| === function possibleBetCounts() | |
| ~ temp bets = possibleBets() | |
| ~ return getCountsFromBets(bets) | |
| === function getCountsFromBets(bets) | |
| ~ temp bet = pop(bets) | |
| { bet: | |
| ~ bet = Dice(betCount(bet) * 10 + 1) | |
| ~ return bet + getCountsFromBets(bets) | |
| } | |
| ~ return () | |
| === function possibleBetsForCount(c) | |
| ~ return possibleBets() ^ LIST_RANGE(LIST_ALL(Dice), c * 10, c * 10 + 4) | |
| === function countDiceAtValue(diceToConsider, value) | |
| ~ temp die = pop(diceToConsider) | |
| { die: | |
| ~ temp retValue = (faceValue(die) == value) | |
| ~ return retValue + countDiceAtValue(diceToConsider, value) | |
| } | |
| ~ return 0 | |
| /* | |
| Game Loop | |
| */ | |
| VAR firstTurn = Me | |
| VAR lastBet = () | |
| == begin_game | |
| You pull up a seat at the table. The Half-Orc opposite picks his teeth with a dagger. | |
| 'Ready?' he grumbles. He tosses you a stack of dice. | |
| - (opts) | |
| * (whatis) 'What's the game?'[] you ask. | |
| 'Swindlestones,' the Half-Orc replies. 'A game of luck and brains.' He chuckles. 'And <i>looks.</i>' | |
| -> opts | |
| * { whatis } 'Tell me the rules.' | |
| 'You roll behind your hand. I roll behind mine. You say, "There are 2 ones on the table," or something like that. I call to say, no, I do not believe it - or I say something higher. Higher number, or more dice. When called, we see who is right. Loser loses dice. No dice, loser is loser.' | |
| * * 'I understand.' | |
| * * 'So the bids keep going up?' | |
| The Half-Orc nods. | |
| - - 'Is simple. Now, play.' | |
| -> opts | |
| + [ Roll the dice ] | |
| -> main | |
| === main | |
| ~ rollDice() | |
| You {DiceCountMe == 1:roll the remaining dice|gather up your {print_number(DiceCountMe)} dice and throw them} behind your palm, getting { stateDiceFor(Me) }. | |
| The Half-Orc rolls his {DiceCountThem > 1:{print_number(DiceCountThem)}} dice and {~chuckles|snorts}. | |
| ~ resetAI() | |
| ~ lastBet = () | |
| ~ Players = firstTurn | |
| ->turnstart | |
| = turnchange | |
| ~ Players = LIST_INVERT(Players) | |
| -> turnstart | |
| = turnstart | |
| { Players: | |
| - Me: -> my_turn | |
| - Them: -> their_turn | |
| } | |
| = my_turn | |
| { not came_from(-> their_turn): | |
| 'Your bet first,' the Half-Orc grumbles. | |
| } | |
| { not came_from(-> stateDiceFor): | |
| [ You have {stateDiceFor(Me) } ] | |
| } | |
| - (top) | |
| { lastBet: | |
| + [ Call! ] | |
| 'I call,' you declare. | |
| -> call_last_bet(Me) | |
| } | |
| ~ temp bets = possibleBetCounts() | |
| {bets: | |
| -> bet_opts(bets, true) | |
| } | |
| = bet_opts(bets, countsOnly) | |
| - (opts) | |
| ~ temp bet = pop(bets) | |
| {countsOnly: | |
| + [ Bet {print_number(betCount(bet))} ... ] | |
| ~ bets = possibleBetsForCount(betCount(bet)) | |
| -> bet_opts(bets, false) | |
| - else: | |
| + [ Bet {stateBet(bet)} ] | |
| 'I bet <b>{stateBet(bet)}</b>,' you declare. | |
| -> makeBet(bet) | |
| } | |
| { bets: | |
| -> opts | |
| } | |
| { not countsOnly: | |
| + [ BACK ] | |
| -> top | |
| } | |
| -> DONE | |
| = makeBet(bet) | |
| ~ lastBet = bet | |
| -> turnchange | |
| = their_turn | |
| 'Let's see now,' the Half-Orc murmurs, scratching his chin with a hooked nail. | |
| ~ temp newBet = () | |
| -> filter_and_obtain_bet( newBet ) -> | |
| { not newBet: | |
| -> he_calls | |
| - else: | |
| -> he_bets(newBet) | |
| } | |
| = he_bets(newBet) | |
| <> 'I bet <b>{stateBet(newBet)}</b>. <> | |
| { cycle: | |
| - {shuffle: | |
| - Now - you. | |
| - Well? | |
| - You, now. | |
| - Next, you. | |
| - Your turn. | |
| - Now you speak. | |
| } | |
| - {shuffle: | |
| - What say you? | |
| - Give up now, I think. | |
| - I have you, yes. | |
| - Too big for you, I think. | |
| - | |
| - | |
| - | |
| } | |
| } | |
| <>' | |
| -> makeBet(newBet) | |
| = he_calls | |
| <> 'I call.' | |
| -> call_last_bet(Them) | |
| = call_last_bet(who) | |
| // who is calling on who | |
| The dice are revealed. Alongside my { stateDiceFor(Me) }, he has { stateDiceFor(Them) }. | |
| ~ temp valuesInSet = countValuesIn(betNumber(lastBet), Dice) | |
| ~ temp betWasOkay = ( valuesInSet >= betCount(lastBet) ) | |
| <> That puts {not betWasOkay:only} <b>{print_number(valuesInSet)} {betNumber(lastBet)}{valuesInSet>1:s }</b> on the table. | |
| ~ temp winner = () | |
| {not betWasOkay: | |
| ~ winner = who | |
| - else: | |
| ~ winner = LIST_INVERT(who) | |
| } | |
| -> resolve_round(winner) | |
| = resolve_round(winner) | |
| { winner: | |
| - Me: ~ DiceCountThem-- | |
| - Them: ~ DiceCountMe-- | |
| } | |
| { | |
| - DiceCountThem <= 0: | |
| -> end_game(Me) | |
| - DiceCountMe <= 0: | |
| -> end_game(Them) | |
| } | |
| { winner: | |
| - Me: | |
| The Half-Orc grumbles with irritation, and he tosses one of his dice away. | |
| - Them: | |
| The Half-Orc nods in deep satisfaction, as you push one of your dice away. | |
| } | |
| + [ Roll again ] | |
| ~ firstTurn = winner | |
| -> main | |
| /* | |
| AI | |
| */ | |
| === end_game(winner) | |
| { winner: | |
| - Me: -> you_win | |
| - Them: -> he_wins | |
| } | |
| = you_win | |
| You beam with pleasure as you relieve the Half-Orc of his gold. Naturally, he reaches for his sword... | |
| ->-> | |
| = he_wins | |
| You toss your last dice, and the creature reaches across the table to scoop the pile of gold into his lap. | |
| 'I say you loser from moment you sit on chair,' he grumbles with delight. 'Loser face.' | |
| ->-> | |
| /* | |
| AI | |
| */ | |
| === function findBetsUpTo(value, maxCount, bets) | |
| ~ temp bet = pop(bets) | |
| { bet: | |
| ~ temp retVal = () | |
| { betNumber(bet) == value && betCount(bet) <= maxCount: | |
| ~ retVal = bet | |
| } | |
| ~ return retVal + findBetsUpTo(value, maxCount, bets) | |
| } | |
| ~ return () | |
| VAR whatDiceDoWeThinkYouHave = () | |
| === function resetAI() | |
| ~ whatDiceDoWeThinkYouHave = () | |
| === filter_and_obtain_bet( ref newBet ) | |
| ~ reseed() | |
| {DEBUG_AI_DECISIONS: [ he's got {stateDiceFor(Them) } ] } | |
| ~ temp countOfLastBet = betCount(lastBet) | |
| ~ temp valueOfLastBet = betNumber(lastBet) | |
| { lastBet: | |
| ~ temp iThinkYouHave = FLOOR(countOfLastBet / 2) + 1 | |
| ~ iThinkYouHave -= countValuesIn(valueOfLastBet, whatDiceDoWeThinkYouHave) | |
| { iThinkYouHave: // we think you've got more than we thought. add 1 dice. | |
| ~ whatDiceDoWeThinkYouHave += LIST_RANDOM(valuesIn ( valueOfLastBet, LIST_ALL(Dice) - whatDiceDoWeThinkYouHave ) ) | |
| } | |
| } | |
| ~ temp aRandomValue = RANDOM(1, 4) | |
| ~ temp bets = possibleBets() | |
| ~ temp cannotCall = countValuesFor(betNumber(lastBet), Them) >= betCount(lastBet) | |
| ~ temp valuesIHave = countValuesFor(valueOfLastBet, Them) | |
| ~ temp uncertaintyInYourDice = MAX(0, DiceCountMe - LIST_COUNT(whatDiceDoWeThinkYouHave) ) | |
| {DEBUG_AI_DECISIONS: [ He thinks you have {listDice(whatDiceDoWeThinkYouHave)}, with uncertainty {uncertaintyInYourDice} ] } | |
| + { valuesIHave + DiceCountMe < countOfLastBet } -> | |
| {DEBUG_AI_DECISIONS: [ you overbet; we know it ] } | |
| // you overbet and we know it for sure | |
| + {findBetsUpTo(4, countValuesFor(4, Them), bets) } {RANDOM(1, 5) >= 4 } -> | |
| {DEBUG_AI_DECISIONS: [ safe high 4 bet ] } | |
| ~ newBet = findBetsUpTo(4, countValuesFor(4, Them) , bets) | |
| + { not lastBet } -> | |
| { DEBUG_AI_DECISIONS: [ picking a first bet randomly ] } | |
| ~ temp myCount = countValuesFor(aRandomValue, Them) | |
| ~ newBet = findBetsUpTo(aRandomValue, myCount + 1, bets ) | |
| + { LIST_COUNT(whatDiceDoWeThinkYouHave) > DiceCountMe * 1.5 } {not cannotCall} -> | |
| {DEBUG_AI_DECISIONS: [ we suspect you're overbetting ] } | |
| // your bets are all over the place. Call. | |
| + { RANDOM(1, 3) == 1 } | |
| { DiceCountThem + countValuesIn(valueOfLastBet, whatDiceDoWeThinkYouHave) <= countOfLastBet + 1 } | |
| -> | |
| {DEBUG_AI_DECISIONS: [ we're raising you ] } | |
| ~ newBet = findBetsUpTo(valueOfLastBet, countOfLastBet + 1, bets ) | |
| + { valuesIHave + countValuesIn(valueOfLastBet, whatDiceDoWeThinkYouHave) + FLOOR(uncertaintyInYourDice / 4) + 1 < countOfLastBet } {not cannotCall} -> | |
| {DEBUG_AI_DECISIONS: [ we suspect you dont' have the dice to back this up ] } | |
| + {findBetsUpTo(3, countValuesFor(3, Them), bets) } | |
| { countValuesIn(4 , whatDiceDoWeThinkYouHave ) == 0} | |
| -> | |
| {DEBUG_AI_DECISIONS: [ we've got high 3s, and we don't think you have any 4s; pushing you ] } | |
| ~ newBet = findBetsUpTo(3, countValuesFor(3, Them) , bets) | |
| + {findBetsUpTo(1, countValuesFor(1, Them) + countValuesIn(1, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) } -> | |
| {DEBUG_AI_DECISIONS: [ default bet: sensible 1s ] } | |
| ~ newBet = findBetsUpTo(1, countValuesFor(1, Them) + countValuesIn(1, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) | |
| + {findBetsUpTo(3, countValuesFor(3, Them) + countValuesIn(3, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) } -> | |
| {DEBUG_AI_DECISIONS: [ default bet: sensible 3s ] } | |
| ~ newBet = findBetsUpTo(3, countValuesFor(3, Them) + countValuesIn(3, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) | |
| + {findBetsUpTo(2, countValuesFor(2, Them) + countValuesIn(2, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) } -> | |
| {DEBUG_AI_DECISIONS: [ default bet: sensible 2s ] } | |
| ~ newBet = findBetsUpTo(2, countValuesFor(2, Them) + countValuesIn(2, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) | |
| + {findBetsUpTo(4, countValuesFor(4, Them) + countValuesIn(4, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) } -> | |
| {DEBUG_AI_DECISIONS: [ default bet: sensible 4s ] } | |
| ~ newBet = findBetsUpTo(4, countValuesFor(4, Them) + countValuesIn(4, whatDiceDoWeThinkYouHave) + uncertaintyInYourDice / 2, bets) | |
| + -> | |
| {DEBUG_AI_DECISIONS: [ look for a fallback bet ] } | |
| - - (makebet) | |
| ~ newBet = pop(bets) | |
| {DEBUG_AI_DECISIONS: [ {newBet}: { betCount(newBet)} <= {countValuesFor(betNumber(newBet), Them)} + {countValuesIn(betNumber(newBet), whatDiceDoWeThinkYouHave)} + {uncertaintyInYourDice} ] } | |
| + + { betCount(newBet) <= countValuesFor(betNumber(newBet), Them) + countValuesIn(betNumber(newBet), whatDiceDoWeThinkYouHave) + uncertaintyInYourDice } | |
| {RANDOM(1, 5) >= 3 || cannotCall } -> | |
| { DEBUG_AI_DECISIONS: [ Try a risky higher bet ] } | |
| ->-> | |
| + + -> | |
| { not bets: | |
| { DEBUG_AI_DECISIONS: [ We're trapped. Call. ] } | |
| ~ newBet = () | |
| ->-> | |
| } | |
| -> makebet | |
| - // ensure we only have a single bet | |
| ~ newBet = LIST_RANDOM(newBet) | |
| ->-> | |
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