Posts from Current questions and answers regarding the map editor.

Replace a building on the adventure map with another one where you can purchase creatures. For example, replace a Demon Tower with an Archers Tower. I will create the condition explaining why it should be changed; I am interested in the process itself. Because I don't know how to delete a building.

Replace one building with another on the adventure map, where you can purchase creatures. For example, replace a Demon Tower with an Archers Tower. I will create the condition explaining why it should be changed; I am interested in the process itself. Because I don't know how to delete a building.

How can a town be restored from ruins?

I mean, there are destroyed Human and Demon towns. Is there a way to change an object into a town?

I tried SetObjectOwner, but it seems to only work for towns.

There doesn't seem to be a direct function to restore a town from its ruins. You can try a workaround:

function RazeOfTown()
MakeTownMovable(nTownname);
--makes the town movable
SetObjectPosition(nTowname, x, y, floor);
--teleports the town to some empty, hidden area (e.g., in a Dungeon)
PlayVisualEffect(...);
--some nice effects of the town's destruction
CreateStatic("RazedTown", /Path to model.xdb#xpointer(/Model), x, y, floor);
--creates the town's ruins in its place
end;
...
...
function TownRebuilt()
RemoveObject("RazedTown");
--removes the ruins
PlayVisualEffect(...);
--some nice effect of the town's restoration
SetObjectPosition("TownName", x, y, floor);
--returns the town to its place
end;

To understand which of the Hole tiles need to be removed, it is enough to know the location of the center. Finding the center is very simple: in the Objects Properties Tree, find Pos => + => Set any coordinate, press Enter. Then, look at the city from above, hovering over the cell with the same coordinates: the cell located at the coordinates specified manually through Pos is the central one.
It's easier to remove all Hole Tiles and then add them back if needed, or to create a new city instead of modifying an old one.