Hi,
FYI, Locus can already handle a format much similar to what you describe. It is called TAR format and is also supported by mobac. Each tile is a different file just as you sketch above.
It works well and the performance is fine enough. The downside is that it takes ages to copy the files to the phone. Virtually hours for big maps as opposed to minutes for similar sqlite based maps. And if you want to the delete the maps from the phone, it takes ages too!
For that reason I prefer sqlite based maps.
FYI, Locus can already handle a format much similar to what you describe. It is called TAR format and is also supported by mobac. Each tile is a different file just as you sketch above.
It works well and the performance is fine enough. The downside is that it takes ages to copy the files to the phone. Virtually hours for big maps as opposed to minutes for similar sqlite based maps. And if you want to the delete the maps from the phone, it takes ages too!
For that reason I prefer sqlite based maps.