Topic category: Help with modding (Java Edition)
For sake of convenience I'll split this into 2 parts for ease of reading and if someone knows an answer:
For those who don't know, after killing a specific boss in Terraria, the world enters Hard Mode, where, as suggests, everything gets harder. This is, however, a small part of what it does, and the difficulty can, in some cases, be as a result of what else happens: certain mobs only start spawning due to Hard Mode, as well as certain materials start spawning (though Terraria makes you break demon altars first, if possible I want it to be only as a result of Hard Mode).
What I want out of this, is to see if it's possible to do that sort of "difficulty switch" where not only new mobs spawn, but also new ores, that happens upon the death of a boss.
Corruption in Terraria is a specific biome that spreads, which, I do know to a degree how to make. My question with it is if I can make it stop spreading after a certain distance, and if I can make it so there's an item that can remove a large amount of the Corruption at a time. On top of this, I would also (in a perfect world) be able to change the biome borders as in Terraria, but this is much less of a priority.
Thanks in advance to any answers or solutions (preferably for the Hard Mode)