vcmi/config/buildings2.txt

0 0
CASTLE 0
0
1
2
3
4
10
11
12
13
5
22
30
37
16
6
18
19
34
41
END
CASTLE 1
35
42
33
40
16
32
39
0
1
2
3
4
31
18
38
19
34
24
41
25
5
30
37
14
15
10
11
12
13
21
22
END
EOD

------------------------------------------------------------------

//File format:

0 0 //for further use - format version and ID mode


	CASTLE [Castle ID]
		[ID] //Building showed on the top (blitted later)
		[ID] //Building showed later...
		...
		[ID] //even later...
	END //end of buildings for this castle


	[...] //info for more castles

EOD

Buildings not mentioned in the file will be blitted as first. File can contain data for any count of castles.