I've been studying LUA lately and decided to post an example of how to create a number guessing game in LUA. The objective is to correctly chose the number that the computer picked from 1 - 100. Here is the source code:
Code:
-- Create the random seed for the random function
math.randomseed(os.time())
while true do
-- Instructions
io.write("This is a number guessing game.\n")
io.write("I will pick a number between 1 - 100 and it is your job to guess that number.\n")
io.write("If you enter in a number to high then I'll tell you that you've guessed to high.\n")
io.write("If you enter in a number to low then I'll tell you that you've guessed to low.\n")
io.write("Whenever you finally guess the correct number I will tell you how good you did.\n")
io.write("\n")
-- Pick a random number from 1 - 100
computerPick = math.random(1, 100)
userGuess = -1
guesses = 0
while computerPick ~= userGuess do
-- Ask the user to pick a number
io.write("Pick a number(0 - 100): ")
-- Set the number guessed
temp = io.read()
if tonumber(temp) then
-- Convert the string to a number
temp = tonumber(temp)
-- Check if it's between 1 - 100
if temp >= 1 and temp <= 100 then
userGuess = temp
-- Increment the amount of times the user has guessed
guesses = guesses + 1
-- Let the user know if they picked the correct number or not
if userGuess == computerPick then
io.write("You've guessed correctly. I picked " .. computerPick .. "\n\n")
elseif userGuess < computerPick then
io.write(userGuess .. " is to low.\n\n")
else
io.write(userGuess .. " is to high.\n\n")
end
else
io.write(temp .. " is not between 1 and 100.\n")
end
else
-- Let the user know that they have not entered in a number
io.write(temp .. " is not a valid number.\n")
end
end
if guesses == 1 then
io.write("Lucky guess!")
elseif guesses < 10 then
io.write("Hey, you're pretty good.")
elseif guesses < 25 then
io.write("It's OK, you'll do better next time.")
else
io.write("Don't quit your day job!")
end
io.write("\nPress enter to restart")
io.read()
-- I operate in windows, if you use a version of Unix then replace cls with 'clear'
os.execute("cls")
end