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aconconi
2022-10-08 20:52:11 +02:00
parent 3bf29b6f12
commit 97b28ee5b4
1 changed files with 89 additions and 89 deletions
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178
29_Craps/lua/craps.lua
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@@ -22,126 +22,126 @@ Lua port by Alex Conconi, 2022
--- Throw two dice and return their sum. --- Throw two dice and return their sum.
local function throw_dice() local function throw_dice()
return math.random(1, 6) + math.random(1, 6) return math.random(1, 6) + math.random(1, 6)
end end
--- Print prompt and read a number > 0 from stdin. --- Print prompt and read a number > 0 from stdin.
local function input_number(prompt) local function input_number(prompt)
while true do while true do
io.write(prompt) io.write(prompt)
local number = tonumber(io.stdin:read("*l")) local number = tonumber(io.stdin:read("*l"))
if number and number > 0 then if number and number > 0 then
return number return number
else else
print("Please enter a number greater than zero.") print("Please enter a number greater than zero.")
end end
end end
end end
--- Print custom balance message depending on balance value --- Print custom balance message depending on balance value
local function print_balance(balance, under_msg, ahead_msg, even_msg) local function print_balance(balance, under_msg, ahead_msg, even_msg)
if balance < 0 then if balance < 0 then
print(under_msg) print(under_msg)
elseif balance > 0 then elseif balance > 0 then
print(ahead_msg) print(ahead_msg)
else else
print(even_msg) print(even_msg)
end end
end end
--- Play a round and return winnings or losings. --- Play a round and return winnings or losings.
local function play_round() local function play_round()
-- Input the wager -- Input the wager
local wager = input_number("Input the amount of your wager: ") local wager = input_number("Input the amount of your wager: ")
-- Roll the die for the first time. -- Roll the die for the first time.
print("I will now throw the dice") print("I will now throw the dice")
local first_roll = throw_dice() local first_roll = throw_dice()
-- A 7 or 11 on the first roll wins. -- A 7 or 11 on the first roll wins.
if first_roll == 7 or first_roll == 11 then if first_roll == 7 or first_roll == 11 then
print(string.format("%d - natural.... a winner!!!!", first_roll)) print(string.format("%d - natural.... a winner!!!!", first_roll))
print(string.format("%d pays even money, you win %d dollars", first_roll, wager)) print(string.format("%d pays even money, you win %d dollars", first_roll, wager))
return wager return wager
end end
-- A 2, 3, or 12 on the first roll loses. -- A 2, 3, or 12 on the first roll loses.
if first_roll == 2 or first_roll == 3 or first_roll == 12 then if first_roll == 2 or first_roll == 3 or first_roll == 12 then
if first_roll == 2 then if first_roll == 2 then
-- Special 'you lose' message for 'snake eyes' -- Special 'you lose' message for 'snake eyes'
print(string.format("%d - snake eyes.... you lose.", first_roll)) print(string.format("%d - snake eyes.... you lose.", first_roll))
else else
-- Default 'you lose' message -- Default 'you lose' message
print(string.format("%d - craps.... you lose.", first_roll)) print(string.format("%d - craps.... you lose.", first_roll))
end end
print(string.format("You lose %d dollars", wager)) print(string.format("You lose %d dollars", wager))
return -wager return -wager
end end
-- Any other number rolled becomes the "point". -- Any other number rolled becomes the "point".
-- Continue to roll until rolling a 7 or point. -- Continue to roll until rolling a 7 or point.
print(string.format("%d is the point. I will roll again", first_roll)) print(string.format("%d is the point. I will roll again", first_roll))
while true do while true do
local second_roll = throw_dice() local second_roll = throw_dice()
if second_roll == first_roll then if second_roll == first_roll then
-- Player gets point and wins -- Player gets point and wins
print(string.format("%d - a winner.........congrats!!!!!!!!", first_roll)) print(string.format("%d - a winner.........congrats!!!!!!!!", first_roll))
print(string.format("%d at 2 to 1 odds pays you...let me see... %d dollars", first_roll, 2 * wager)) print(string.format("%d at 2 to 1 odds pays you...let me see... %d dollars", first_roll, 2 * wager))
return 2 * wager return 2 * wager
end end
if second_roll == 7 then if second_roll == 7 then
-- Player rolls a 7 and loses -- Player rolls a 7 and loses
print(string.format("%d - craps. You lose.", second_roll)) print(string.format("%d - craps. You lose.", second_roll))
print(string.format("You lose $ %d", wager)) print(string.format("You lose $ %d", wager))
return -wager return -wager
end end
-- Continue to roll -- Continue to roll
print(string.format("%d - no point. I will roll again", second_roll)) print(string.format("%d - no point. I will roll again", second_roll))
end end
end end
--- Main game function. --- Main game function.
local function craps_main() local function craps_main()
-- Print the introduction to the game -- Print the introduction to the game
print(string.rep(" ", 32) .. "Craps") print(string.rep(" ", 32) .. "Craps")
print(string.rep(" ", 14) .. "Creative Computing Morristown, New Jersey\n\n") print(string.rep(" ", 14) .. "Creative Computing Morristown, New Jersey\n\n")
print("2,3,12 are losers; 4,5,6,8,9,10 are points; 7,11 are natural winners.") print("2,3,12 are losers; 4,5,6,8,9,10 are points; 7,11 are natural winners.")
-- Initialize random number generator seed -- Initialize random number generator seed
math.randomseed(os.time()) math.randomseed(os.time())
-- Initialize balance to track winnings and losings -- Initialize balance to track winnings and losings
local balance = 0 local balance = 0
-- Main game loop -- Main game loop
local keep_playing = true local keep_playing = true
while keep_playing do while keep_playing do
-- Play a round -- Play a round
balance = balance + play_round() balance = balance + play_round()
-- If player's answer is 5, then stop playing -- If player's answer is 5, then stop playing
keep_playing = (input_number("If you want to play again print 5 if not print 2: ") == 5) keep_playing = (input_number("If you want to play again print 5 if not print 2: ") == 5)
-- Print an update on winnings or losings -- Print an update on winnings or losings
print_balance( print_balance(
balance, balance,
string.format("You are now under $%d", -balance), string.format("You are now under $%d", -balance),
string.format("You are now ahead $%d", balance), string.format("You are now ahead $%d", balance),
"You are now even at 0" "You are now even at 0"
) )
end end
-- Game over, print the goodbye message -- Game over, print the goodbye message
print_balance( print_balance(
balance, balance,
"Too bad, you are in the hole. Come again.", "Too bad, you are in the hole. Come again.",
"Congratulations---you came out a winner. Come again.", "Congratulations---you came out a winner. Come again.",
"Congratulations---you came out even, not bad for an amateur" "Congratulations---you came out even, not bad for an amateur"
) )
end end