Slot machine in ruby

80_Slots/ruby/slots.rb

@@ -0,0 +1,152 @@
+$pot = 0
+
+def greeting
+    puts "SLOTS".center(80)
+    puts "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY".center(80)
+    puts "\n\n"
+
+    # PRODUCED BY FRED MIRABELLE AND BOB HARPER ON JAN 29, 1973
+    # IT SIMULATES THE SLOT MACHINE.
+
+    puts "You are in the H&M Casino, in front of one of our"
+    puts "one-arm bandits. You can bet from $1 to $100."
+    puts "To pull the arm, punch the return key after making your bet."
+    puts "\nBet zero to end the game."
+end
+
+def overLimit
+    puts "House Limit is $100"
+end
+
+def underMinimum
+    puts "Minimum Bet is $1"
+end
+
+# bells don't work on my machine. YMMV
+# I'm displaying dashes between the reels
+
+def tenBells
+    10.times do
+        # beep if you can
+        print "-"
+    end
+end
+
+def fiveBells
+    "-----"
+end
+
+def goodbye
+    puts "\n\n\n"
+    # end the game
+    exit
+end
+
+def payUp
+    puts "PAY UP!  PLEASE LEAVE YOUR MONEY ON THE TERMINAL."
+end
+
+def brokeEven
+    puts "HEY, YOU BROKE EVEN."
+end
+
+def collectWinnings
+    puts "COLLECT YOUR WINNINGS FROM THE H&M CASHIER."
+end
+
+def win winType, bet
+    case winType
+        when "jackpot"
+            winMessage = "***JACKPOT***"
+            winnings = 101
+        when "topDollar"
+            winMessage = "**TOP DOLLAR**"
+            winnings = 11
+        when "doubleBar"
+            winMessage = "*DOUBLE BAR!!*"
+            winnings = 6
+        when "double"
+            winMessage = "DOUBLE!!"
+            winnings = 3
+    end
+    puts "\nYou won: " + winMessage
+    $pot += (winnings * bet)
+end
+
+greeting
+
+#$pot = 0
+while true
+    reelArray = ["BAR","BELL","ORANGE","LEMON","PLUM","CHERRY"]
+    print "\nYOUR BET? "
+    # get input, remove leading and trailing whitespace, cast to integer
+    bet = gets.strip.to_i
+
+    if bet == 0 then
+        goodbye
+    elsif bet > 100 then
+        overLimit # error if more than $100
+    elsif bet < 1 then
+        underMinimum # have to bet at least a dollar
+    else
+        # valid bet, continue
+        tenBells # ding
+        
+        # assign a random value from the array to each of the three reels
+        reel1 = reelArray[rand(5)]
+        reel2 = reelArray[rand(5)]
+        reel3 = reelArray[rand(5)]
+
+        # print the slot machine reels
+        puts "\n\n" + reel1 + fiveBells + reel2 + fiveBells + reel3
+
+        # see if we have a match in the first two reels
+        if reel1 == reel2 then
+            if reel2 == reel3 then
+                if reel3 == "BAR" then
+                    # all three reels are "BAR"
+                    win "jackpot", bet
+                 else
+                   # all three reels match but aren't "BAR"
+                   win "topDollar", bet
+                end
+            elsif reel2 == "BAR" then
+                # reels 1 and 2 are both "BAR"
+                win "doubleBar", bet
+             else
+                # reels 1 and 2 match but aren't "BAR"
+                win "double", bet
+            end
+        # otherwise see if there's a match in the remaining reels
+        elsif reel1 == reel3 or reel2 == reel3 then
+            if reel3 == "BAR" then
+                # two reels match, both "BAR"
+                win "doubleBar", bet
+            else
+                # two reels match, but not "BAR"
+                win "double", bet
+            end
+        else
+            # bad news - no matches
+            puts "\nYou lost"
+            # decrement your standings by the bet amount
+            $pot -= bet
+        end
+
+        puts "Your standings are: " + $pot.to_s
+        print "\nAgain? " # YES to continue
+        # get input, remove leading and trailing whitespace, make uppercase
+        again = gets.strip.upcase
+        if again != "Y" && again != "YES" then
+            # that's enough... evaluate the pot and quit
+            if $pot < 0 then
+                payUp
+            elsif $pot == 0 then
+                brokeEven
+            else # yay!
+                collectWinnings
+            end
+            goodbye
+        end
+    end
+end