I was using a 2d array with a 'cell' object for each grid and found this weird issue. For some reason i can't change a value in a particular cell on a grid without changing it for the whole grid. Hope i explained it clear enough. Here's an example:

cls()
cell={1,1}
arr={{cell,cell},{cell,cell}}

arr[1][1][1]=2

for x=1,2 do
for y=1,2 do
?arr[x][y][1],x*8,y*8,15
end
end

As you can see i'm changing only the first number in the first column and the first row to 2 but the output shows that every first number in the whole grid was changed into 2. Why does that happen??

cell remains the same table even when referenced elsewhere, so changing it in one place changes it in all the others. You can make a function which returns a copy of a table

function copytbl(tbl)
 copy={}
 for k,v in pairs(tbl) do
  if typeof(v)=="table" then
   copy[k]=copytbl(v)
  else
   copy[k]=v
  end
 end
 return copy
end

typed on phone and untested but I think that ought to do it

I see it now! thank you @kozm0naut! It just seemed so weird at first. I thought that once its in an array its already a separate copy in each cell🙈