Merge pull request #823 from aconconi/33-dice-updated

33_Dice Lua updated

33_Dice/lua/README.md

@@ -1,3 +1,16 @@
 Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
 
-Conversion to [Lua](https://www.lua.org/)
+Conversion to [Lua](https://www.lua.org/) by Alex Conconi
+
+---
+
+### Porting notes for Lua
+
+- This is a straightfoward port with only minor modifications for input
+validation and text formatting.
+
+- The "Try again?" question accepts 'y', 'yes', 'n', 'no' (case insensitive),
+whereas the original BASIC version defaults to no unless 'YES' is typed.
+
+- The "How many rolls?" question presents a more user friendly message
+in case of invalid input.

33_Dice/lua/dice.lua

@@ -26,9 +26,8 @@ Lua port by Alex Conconi, 2022.
 
 
 local function print_intro()
-    print("\n                   Dice")
-    print("Creative Computing  Morristown, New Jersey")
-    print("\n\n")
+    print("\n" .. string.rep(" ", 19) .. "Dice")
+    print("Creative Computing  Morristown, New Jersey\n\n")
     print("This program simulates the rolling of a")
     print("pair of dice.")
     print("You enter the number of times you want the computer to")
@@ -85,7 +84,7 @@ local function roll_dice(num_rolls)
 end
 
 
-function print_results(counts)
+local function print_results(counts)
     print("\nTotal Spots   Number of Times")
     for roll_total, count in pairs(counts) do
         print(string.format(" %-14d%d", roll_total, count))