ref: 5fe8aab3445cb76d8e1c4be954c0392f40798950 dir: /maps/SeafoamIslandsB4F.blk/
.vvu..v - v..vvvvvv, -a ..vv|vvvvv..vv, vvvvv..vvf +vvvvvv..vvvvvvvvvvv..vvuvvvv..v vL.