function FourIsMagic(Number)
local function NumberToWord(Number1)
local OnesList = {[0] = "", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"}
local TeenList = {[0] = "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"}
local TensList = {[0] = "", "", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"}
local LionList = {[0] = "", "Thousand", "Million", "Billion", "Trillion", "Quadrillion", "Quintillion", "Sextillion", "Septillion", "Octillion", "Nonillion"}
local DecimalList = {[0] = "", "Tenth", "Hundredths", "Thousandths", "Ten-Thousandths", "Hundred-Thousandths", "millionths", "Ten-Millionths", "Hundred-Millionths", "Billionths", "Ten-Billionths", "Hundred-Billionths", "Trillionths", "Ten-Trillionths", "Hundred-Trillionths"}
local Numbers = Number1 % 1 ~= 0 and string.split(tostring(Number1), ".") or {Number1}
local DecimalPlaces = Number1 % 1 ~= 0 and string.len(Numbers[2]) or 0
local Results = {"", ""}
if Number1 == 0 then
return "Zero"
end
local function AddSpaceOrHyphen(String, Add)
return String == "" and String or Add..String
end
local function AddToResult(Number2, ResultNumber)
local Lion = 0
while Number2 > 0 do
local Word = ""
local Ones = Number2 % 10
local Tens = math.floor(Number2 / 10) % 10
local Hundreds = math.floor(Number2 / 100) % 10
Word = Tens == 0 and OnesList[Ones] or Tens == 0 and TeenList[Ones] or TensList[Tens]..AddSpaceOrHyphen(OnesList[Ones], "-")
Word = Hundreds > 0 and OnesList[Hundreds].." Hundred"..AddSpaceOrHyphen(Word, " ") or Word
Results[ResultNumber] = Word ~= "" and Word..AddSpaceOrHyphen(LionList[Lion], " ")..AddSpaceOrHyphen(Results[ResultNumber], " ") or Results[ResultNumber]
Number2 = math.floor(Number2 / 1000)
Lion += 1
end
end
for i, v in ipairs(Numbers) do
if i == 1 and v == 0 then
continue
end
Results[1] ..= i == 2 and Numbers[1] ~= "0" and " and " or ""
AddToResult(tonumber(v), i)
Results[2] ..= i == 2 and AddSpaceOrHyphen(DecimalList[DecimalPlaces], " ") or ""
end
return table.concat(Results)
end
if type(Number) ~= "number" then
return "Can't be converted"
end
local Table = {}
local AbsoluteNumber = math.abs(Number)
if AbsoluteNumber > 4 * 10^30 or AbsoluteNumber ~= tonumber(tostring(AbsoluteNumber)) then
return "Can't be converted"
end
local Negative = AbsoluteNumber ~= Number and "Negative " or ""
local NumberText = NumberToWord(AbsoluteNumber)
local NumberLengthText = NumberToWord(string.len(Negative..NumberText))
if NumberText == "Four" and Negative == "" then
return {"Four is Magic"}
end
while true do
table.insert(Table, Negative..NumberText.." is "..NumberLengthText)
if NumberLengthText == "Magic" then
break
end
Negative = ""
NumberText = NumberLengthText
NumberLengthText = NumberText == "Four" and "Magic" or NumberToWord(string.len(NumberText))
end
return Table
end
print(FourIsMagic(221))
print(FourIsMagic(0.42))
print(FourIsMagic(221.42))
I attempted to make try out this challenge on Four is magic - Rosetta Code
now yes lua is already on there but I decided to make it by myself
I ended up taking the number to word conversion function from the lua answer, but I changed it to make it my own
I want to know if this can be improved at all, I had fun making this
oh and this will return “Can’t be converted” if the number is greater than or equal to 4 nonillion or if the number is a fraction
thanks for looking at this if you did 