Initial Lua Implementation for Hi-Lo

47_Hi-Lo/lua/hilo.lua

@@ -0,0 +1,86 @@
+local function hilo (randomNum)
+   local numTries = 0
+   math.randomseed(os.time())
+
+   local randomNum = math.random(1, 100)
+   print(randomNum)
+
+   while numTries < 6 do
+      print("")
+
+      io.write("YOUR GUESS? ")
+   
+      local guess = io.read("*n")
+
+      numTries = numTries + 1
+
+      if guess < randomNum then
+         print("YOUR GUESS IS TOO LOW")
+      end
+
+      if guess > randomNum then
+         print("YOUR GUESS IS TOO HIGH")
+      end
+
+      if guess == randomNum then
+         print("GOT IT!!!!!!!!!!   YOU WIN " .. randomNum .. " DOLLARS.")
+         break
+      end
+    end
+ 
+    if numTries == 6 then
+       print("")
+       print("YOU BLEW IT...TOO BAD...THE NUMBER WAS " .. randomNum)
+       return 0
+    else
+       return randomNum
+    end
+end
+
+local THIRTY_FOUR_TABS=string.rep("\t",34)
+print(THIRTY_FOUR_TABS, "HI LO")
+
+local FIFTEEN_TABS=string.rep("\t",15)
+print(FIFTEEN_TABS, "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY")
+
+local THREE_NEWLINES=string.rep("\n", 3)
+print(THREE_NEWLINES)
+
+print("THIS IS THE GAME OF HI LO.")
+print("")
+print("YOU WILL HAVE 6 TRIES TO GUESS THE AMOUNT OF MONEY IN THE")
+print("HI LO JACKPOT, WHICH IS BETWEEN 1 AND 100 DOLLARS.  IF YOU")
+print("GUESS THE AMOUNT, YOU WIN ALL THE MONEY IN THE JACKPOT!")
+print("THEN YOU GET ANOTHER CHANCE TO WIN MORE MONEY.  HOWEVER,")
+print("IF YOU DO NOT GUESS THE AMOUNT, THE GAME ENDS.")
+
+local wonSoFar = 0
+
+::continue::
+local won = 0
+local won = hilo(randomNum)
+wonSoFar = won + wonSoFar
+print("YOUR TOTAL WINNINGS ARE NOW " .. wonSoFar .. " DOLLARS.")
+
+--- This flush is here because if not then it will keep the newline in the
+--- input buffer and cause the program to inadvertantly go to the 
+--- Invalid Answer!
+--- part of the code which we don't want the program to do. Appears to be a
+--- Lua-ism.
+
+io.stdin:flush()
+io.write("PLAY AGAIN (YES OR NO)? ")
+answer = io.read()
+
+while(not(answer == "YES" or answer == "NO")) do
+   io.write("Invalid Answer! Try again (YES/NO): ")
+   answer = io.read()
+end
+
+if answer == "YES" then
+   goto continue
+else
+   print("")
+   print("SO LONG.  HOPE YOU ENJOYED YOURSELF!!!") 
+   os.exit()
+end