We are creating a ruby betting program
You can take this code, extend it to work with steemit platform ..
but we are just learning to program. it will not be actual betting bot .. but rather just a fun programming example.
Create a betting bot, that takes a betting amount and toss a coin probably
if person wins give him 1.8x amount back.
e.g person bets 1 SBD and wins give him 1.8 SBD back.
We will start by creating a Class Called Betting
Create a folder called Bettingbot and create a file bettingbot.rb inside the folder
class Betting
def initialize(*properties)
@bettingAmount = properties[0]
@bettingPerson = properties[1]
@bettingMemo = properties[2]
end
def betting_result
## Generate a random number between 1 and 10,000
_random = Random.new.rand(1..10000)
## Check if random number is bigger than 5000 and Betting was high
## Declare him a winner
if _random >= 5000 && @bettingMemo == "high"
$betting_Amount = @bettingAmount.to_f * 1.8
puts $betting_Amount
return "WIN", _random, $betting_Amount
elsif _random <= 4999 && @bettingMemo == "low"
$betting_Amount = @bettingAmount.to_f * 1.8
puts $betting_Amount
return "WIN", _random, $betting_Amount
elsif @bettingMemo != "high" || @bettingMemo != "low"
return "INVALID bid, Choose 'high' or 'low' "
else
return "LOSE", _random
end
end
end
isn't it a beautiful program ?
We created an initialization method which takes variable length of arguments.
in our case we will pass three arguments to it.
def initialize(*properties)
@bettingAmount = properties[0]
@bettingPerson = properties[1]
@bettingMemo = properties[2]
end
once we receive a bet, we can perform arithmetic calculations and decide whether the person who bet, won or he lost or he placed an invalid bid.
We are using random number generator method, which ruby provides us. We will generate a random number between 1 and 10,000.
if number is higher than 5000 , and user bids high .. user wins..
if number is lower than 4999, and user bids low .. user wins
otherwise user loses..
_random = Random.new.rand(1..10000)
Storing the resulting number in our local variable _random ..
Following are couple of conditional statements, logical statements and arithmetic statements
which perform our task..
## Conditional statement, which check the random number and bid value .. both of these conditions
## must be true in order for the user to Win .. e.g random number is bigger than 5000 and also user bid ## was 'high'
if _random >= 5000 && @bettingMemo == "high"
## multiplying user's bid by 1.8
$winning_price = @bettingAmount.to_f * 1.8
## returning, Win, random number, and winning amount
return "WIN", _random, $winning_price
elsif _random <= 4999 && @bettingMemo == "low"
## multiplying user's bid by 1.8
$winning_price = @bettingAmount.to_f * 1.8
## returning, Win, random number, and winning amount
return "WIN", _random, $winning_price
elsif @bettingMemo != "high" || @bettingMemo != "low" ## handling invalid bids,
return "INVALID bid, Choose 'high' or 'low' "
else
return "LOSE", _random
end
after that our class is ready, we can use it now
We created a new file called "main.rb" and written following code.
require_relative 'bettingbot'
puts "Enter your betting Amount: "
$betting_amount = gets.chomp
## converting input text value to a floating point number that has 2 numbers after decimal point
## e.g 45.235234 will be converted into 45.24
$betting_amount = '%.2f' % $betting_amount.to_f
puts "Enter username: "
$betting_person = gets.chomp
puts "Enter 'high' or 'low': "
$betting_value = gets.chomp
betting_bot = Betting.new($betting_amount, $betting_person, $betting_value)
_result = betting_bot.betting_result();
print "#{_result} : "
if _result[0] == "WIN"
puts "Congratulations: Your number was #{_result[1]} "
puts "You won #{_result[2]} SBD "
elsif _result[0] == "LOSE"
puts "Unfortunately : Your number was #{_result[1]} "
puts "Try again"
else
puts "Wierd: Error"
end
First line of the program
require_relative 'bettingbot'
You can create a class, in a seperate file. and include the file where you need it..
Just like we did, We created Betting Class in a seperate file. and included in main.rb
puts "Enter your betting Amount: "
$betting_amount = gets.chomp
## converting input text value to a floating point number that has 2 numbers after decimal point
## e.g 45.235234 will be converted into 45.24
$betting_amount = '%.2f' % $betting_amount.to_f
Asking user to input his betting amount. e.g 0.1
following lines of code ask user to insert his username and his bid "high" or "low"
puts "Enter username: "
$betting_person = gets.chomp
puts "Enter 'high' or 'low': "
$betting_value = gets.chomp
Once we get the inputs from the user, we can then use them to create a "Betting" object.
we can then call our method to get the "betting result"
which we are storing in a local variable "_result"
betting_bot = Betting.new($betting_amount, $betting_person, $betting_value)
_result = betting_bot.betting_result();
print "#{_result} : "
remember that "betting_result" is a method of our Betting class, which performs calculations
and send us result ... the result is an array .. which contains three values in case of winning,
and two values in case of losing .
- "WIN"
- _random .. which is the random number which we generated
- and winning amount .. which is 1.8 Times the betting amount ..
finally We check the result variable .. if the result is a WIN or LOSE
we display message to user accordingly ...
if _result[0] == "WIN"
puts "Congratulations: Your number was #{_result[1]} "
puts "You won #{_result[2]} SBD "
elsif _result[0] == "LOSE"
puts "Unfortunately : Your number was #{_result[1]} "
puts "Try again"
else
puts "Wierd: Error"
end
Congratulations on creating a Betting bot
Its time for you to think about an idea, which you want to convert into a ruby program.
You can think about something, which people would love to use.
and convert that idea into a ruby program.
When you create something share with me :)
join me on Discord
https://discord.gg/UhQCYeb