Unable To Find Problem In Simon Says Program

Hello :slight_smile: At the moment I am working on a small Simon Says game and I have encountered a problem which I cannot seem to find a fix for.

Basically my code first gets all the colors available in the Simon Says color folder, then waits for the user to join and executes the initialize function which runs my main code. It then creates a stack and a game over variable set to false, and begins its loop. It starts by adding the first randomized color into the stack using my pickColor() function above the main function. After that, it runs through all the items in the stack and lights up the color pads using my signalColor() function.

Here is the problem that I found in that for loop that runs through the stack. The whole loop works but I am confused why it is running pickColor() every time it goes through the second item in the stack. Why is this happening and how can I troubleshoot this?

Here is the following code (Note: There are some unfinished portions) :

local players = game:GetService("Players")
local colors = game.Workspace.Colors
local plrName = ""
local array = {}
local arrayStr = ""

-- Get all colors under folder into an array.
for i, item in pairs(colors:GetChildren()) do
	array[i] = item.Name -- Get all color names in array.
	arrayStr = arrayStr .. item.Name .. ", "
print("Colors Detected: " .. arrayStr)

-- Pick Randomized Color.
local function pickColor()
	print("Picking color ...")
	local num = math.random(0, 7)
	local picked = array[num]
	print("Picked " .. picked) -- Fails because 'picked' is nil sometimes, gotta fix.
	return picked -- Returns string

-- Signaling the color plate to the player.
local function signalColor(color)
	local object = colors:FindFirstChild(color)
	object.Material = Enum.Material.Neon
	object.Material = Enum.Material.Metal

-- Check for when player touches an object.
local function checkTouched(part)

-- Main sequence function.
local function initialize(plr)
	plrName = plr.Name -- Getting plr name for plr model.
	local player = players:FindFirstChild(plrName)
	print("Player: " .. plrName)
	local plrPart = game.Workspace:WaitForChild(plrName)
	print("Player " .. plrName .. " Model Found.")
	local stack = {}
	local gameOver = false
	local iteration = 0
	print("Beginning new sequence ...")
	while gameOver == false do
		local clr = pickColor()
		stack[iteration] = clr -- Stack on new Color
		for index, item in pairs(stack) do
		iteration += 1 -- Adds round finished
	--player:Kick("Game Over! HighScore: " .. iteration .. "!")

-- When player joins, begin sequence.
	initialize(plr) -- Pass player added


If you’re unsure that your table has all of its components, you can troubleshoot by ensuring printing your item names - are they all there? Make sure.
Alternatively, you can print tables, so be sure to make good use of that. Check to make sure your stack is full.

If I had to guess though, this is your issue:

I don’t think Lua likes starting tables at zero, so try setting your iteration to 1 and see if that helps.

1 Like

Alright I will try troubleshooting by printing the items, though I thought arrays start at 0 in Lua same as other languages, i’ll check to see if I’m using tables wrong. :+1: Thanks for the reply! Ill check back with you if it works out :slight_smile: (just checked and yes, Lua tables start at 1 because it was designed for engineers without experience in computer programming, didnt know :thinking:)

Sure thing. I may be wronng on that zero thing though, I thought I saw something about it long ago. I’ll go experiment now.

1 Like

Yes, you’re correct! :smile: Lua tables start at 1, I set my iterations variable to start at 1 and it works fine! (Not sure how it was using 0 before but oh well :joy:) Thanks again for the help! :+1:

1 Like

Sure thing, glad I could help.

1 Like