Added a check to PlaceDungeons that not only must all four surrounding tiles be nonsolid, they must not be water. Though the flooded dungeon idea is nice too, and there is a token characters can have to allow water breathing, you can't get that token yet so let's keep that idea for later.
The swimming check is caused by how interboard travel places you just outside of the screen boundary, which makes IsWater return false by default. After that, interboard travel makes you take another step which causes the water to be detected. I've made IsWater and its ilk clip to correct coordinates instead to make it detect the water correctly.
The player can swim as long as he/she wants by traveling by the edge of the areas. this is caused by the swimming % meter resets when going to another area.
(also some dungeons can spawn in the middle of the ocean/giant lake where players cannot reach it- unless there are items/races that can breathe in the water, which would make those dungeons good to have- or even add to the generation that dungeons in bodies of water will be flooded dungeons with most of the floors replaced with water)
