add walls

[frnsys]

walls go between cells; they are essentially lines/edges.

what's the best way to define a wall?

one option: to define a wall you can specify a sequence of positions, e.g.: [0,0],[0,5],[5,10]

one coordinate must remain fixed between each position (i.e. no diagonal walls)

[frnsys]

although, it might be simplest to treat walls as objekts. I don't think the pathfinder can handle walls as specified above.

[frnsys]

ok so let's just have walls by an objekt variant. the layouts should be able to support them as the value 2, e.g.:

2 2 2 2 2 2 2 2 2
2 1 1 1 1 1 1 1 2
2 1 1 1 1 1 1 1 2
2 1 1 1 1 1 1 1 2
2 2 2 2 2 2 2 2 2

[frnsys]

this is starting to look like minesweeper