Issues understanding 2D Array

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#1

Good day,

I am having issues understanding 2D Array, I am trying to make an 8,8 array and then populate with the numbers 64 to 1.

This is how it’s coming out at the moment.

63, 62, 61, 60, 59, 58, 57, 56,
55, 54, 53, 52, 51, 50, 49, 48,
47, 0, 46, 45, 44, 43, 42, 41,
40, 0, 0, 39, 38, 37, 36, 35,
34, 0, 0, 0, 33, 32, 31, 30,
29, 0, 0, 0, 0, 28, 27, 26,
25, 0, 0, 0, 0, 0, 24, 23,
22, 0, 0, 0, 0, 0, 0, 21,

local array2D = require(game.ReplicatedStorage.Modules.Array2D)
local newArray = array2D.new(8,8,0)
local count = 64 -- Populate array from 64 to 1

for x = 1, 8 do
	newArray:Set(x, 1, count)
	count = count - 1
	
	for y = x, 8 do
		newArray:Set(x,y,count)
		count = count - 1
	end
	
end
#2

You are very close. The error occurs in

for y = x, 8 do

When you set y = x it’s only looping over y values of x to 8, instead of the full range of 1 to 8. The fix is to change the line to

for y = 1, 8 do

EDIT:
Also the lines

newArray:Set(x, 1, count)
count = count - 1

are unnecessary.

1 Like
#3

Can you please explain what this module is?

#4

Looks like he figured it out and replied in the wrong topic lol.

1 Like