Slices - What's wrong here?

I'm trying to resize a two dimensional array but I keep getting errors.

None of the following work:
Path = Path[..PathLength, 0..2]
Path = Path[..PathLength, ..2]
Path = Path[..PathLength, ..]

if it would would you would do it like:
path = path[..pathlength][..2]

however you cant:

Global path%[100,0]
Global pathlength% = 100
Path = Path[..PathLength][..2]

You cannot resize a two dimensional array using slices.

Make a new array of the dimensions you need instead, and copy the old contents into the new one, and then assign the new to the old...

Like this in pseudo code:

local temp:Int[xlength,ylength]
for x,y = all in old array
  temp[x,y] = old[x,y]
next
old = temp

I don't think you can slice multidimensional arrays.

Use arrays of arrays instead.

[edit]
...eek...Miles too slow...
[/edit]

Bah. I tried making an array of arrays and I couldn't even get it to "invoke" the array, whatever that means.

Thanks for the suggestion freadborg, but that's too messy/too much work.

I'll just go with using two arrays one for X and one for Y, or simply use the multiply trick to make a 1D array 2D. Probably go for the first.

Thanks!

Im pretty sure this is how array o' arrays works.

Local a:myObject[][]
a = new myObject[][5]
for i = 0 to 4
  a[i] = new myObject[5]
  for j = 0 to 4
    a[i][j] = new myObject
  next
next

'slice both x and y to +1
a = a[..a.length+1]
for i = 0 to a.length-1
  a[i] = a[i][..a[i].length+1]
next

That's a lot of slicing for a large arrays. These are best used if your data wouldn't fill up a whole grid. Like this
a[0] = {1,2,3}
a[1] = {1,2,3,4,5,6,7}
a[2] = {2}
a[3] = {1,3,56,3312,17,98,111}

http://www.blitzwiki.org/index.php/Arrays#Multi-Dimensional_Auto_Arrays