Loops in Tables

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#1

Hello. I have a table, and I want to loop it like that:

image

Let me explain better. When the event fired, A will be table[3], C will be table[2], and B will be table[1]. And the new situation of the table will be {B,C,A}.

How can I do that? With metatables? Or table functions?
Thanks for the reading!

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#2

This would be the easy way:

local T = {"A","B","C"}
while wait() do
    for i = #T,1,-1 do
        print(T[i])
    end
end
#3

I don’t know what you mean but I know that if you want to make a loop with the table you can use pairs()

#4

Do you want to change the position or want to loop it twice, I don’t get it.

#5

I meant, when the event fired, {A,B,C} will be {B,C,A}. If happens again, then it will be {C,A,B}. Again then {A,B,C}. So, table[index] will change positions with table[index+1] (the next position) if there is not next position(if it’s table[1]), then it will be last table. Example: {A,B,C}, event fired, {B,C,A}. Event fired, {C,A,B}…

#6

Change positions. table[index] to table[index+1](the next position) if its tablr[1], then move to last index. Example: {A,B,C}, event fired: {B,C,A}

#7

If I understand the pattern correctly this might work

local function pattern(t)
    local first = t[1]
    table.remove(t, 1)
    table.insert(t, first)
    return t
end
#8

Maybe like this:

local T = {"A","B","C"} 
for i = #T,1,-1 do
	local T2 = {}	
	for _,L in pairs(T) do
		if L ~= T[i] then
			table.insert(T2,L)
		end
	end	
	print(T[i],table.unpack(T2))
end
#9

Another way could be this

local function pattern(t)
    table.move(t,1,1,4)
    table.remove(t,1)
    return t
end

Moves a copy of the first thing to the 4th index so it doesn’t overwrite the 3rd and then remove the first thing

Quickly chucked it into an online lua compiler and used it 3 times and gave me this

image

2 Likes
#10

Umm, this might go kinda off topic but which lua compiler do u use? because I want it too!

#11

I typically just use this for quick compiling without going to roblox https://www.tutorialspoint.com/execute_lua_online.php

It’ll have problems printing a table as expected, just use an in pairs loop to print the full table

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