[Question] Do you know a script to change the tileset of a map with a new one when the tiles are not in the same position ?

[Walvyn]

I have a multiple map already done but my tileset is a mess. So I want to create a new one, a better one, but I don't want to remake all my maps.
So my question is, do you know a script which can "translate" the tiles of the old tileset into the tiles of the new tileset for each map, with just a array ?
Example :
{ 1 => 32}
(Tile 1 of old tileset = Tile 32 of the new one)