war3map.w3r Regions

Header:
int: version = 5
int: number "n" of region definition structures*

Data:
"n" times a region definition structure

Region Definition Structures:
float: left
float: bottom
float: right
float: top
String: region name
int: Region index number (creation number)
char[4]: weather effect ID (ex.: "RLlr" for "Rain Lordaeron Light Rain")
   If all the chars are set to 0, then weather effect is disabled.
String: ambient sound (a sound ID name defined in the w3s file like "gg_snd_HumanGlueScreenLoop1")
bytes[3]: region color (used by the World Editor) (BB GG RR)
byte: end of the structure