[Eggbell]

Here is Freeport North

testGrid({
    image: 'FreeportNorth-Grid.jpg',
    height: 601,
    width: 683,
    zeroX: 376,
    zeroY: 283,
    interval: 200,
    maxX: 800,
    maxY: 600,   
    minX: -600,
    minY: -600,
    zoomX: 0.39,
    zoomY: 0.39
})

Freeport East has underground tunnels below city buildings and I think there were NPCs in them. How should that grid map be done?
I could have 2 separate maps above/below ground.
I could have a single gif image that flips below/above ground every 5 secs or so.

Maybe I could fade(transparent) the underground image above the other to make one image.

Or just do an overhead grid map and not worry about it.