I was using landfill to cross a large lake (nowhere near any ores) when "flOre is lava" started taking effect. I looked at the code to see how it works and it was rather strange: I'm not sure what it is supposed to do, but it appears to simply always take effect when the player goes beyond "EASY_ORE_RADIUS". I was expecting it to only hurt a player who is on ore.
I think what would make sense is to hurt a player who has been standing on ore for a period of time, rather than based on their position.
Thanks
