I'm not sure how exactly to ask this question, but I'd like to know how spawning in structures works relative to the position of the player spawning them in. I can generate a new world with the same seed, teleport to the exact same coordinates, and spawn the same structure in each time, and the structure's location ends up being a little different each time. I really want to fine-tune the location of one of the larger ruins from Better Ruins, but because the generation relative to my player's coordinates seems to be inconsistent, that's not working very well. I am also unsure of how to rotate structures, if that is possible, though it is unnecessary since I have figured out a position I like that doesn't require rotation. If anyone has any ideas or can point me towards some useful resources, I'd much appreciate it.
