Vati-nyan
This slg_movement plugin will try to move to neighbors, it will ask the cost of target tile by "cond:on cost function" and pass exp:TileX, exp:TileY, or exp:TileUID to let user return cost by these info.
You could dump the (exp:TileX, exp:TileY) under "cond:on cost function" by action:log in browser object, to see the trace of moving.