Sensible Biomes

To honor the Spring of Life update I overhauled how biomes generates, not as much as more complex data packs, but still more interesting than vanilla. This makes this version generate different maps compared to the previous ones; the game should make it work with old saves but YMMV.

• first experiments with terrain manipulation: larger mountains surrounded by hills, forming (kind of) mountain ranges i.e. no more lonely peaks popping up here and there (which can still happen occasionally).
• climate zone (biome) size is now roughly only x1.5 of vanilla biomes (much less than the x4 size of Large Biomes) because I found it more fun to explore
• biome borders are now much more interwined, as opposed to vanilla where everything changes suddenly after crossing almost straight lines; if you like lot of different biomes you can find places like that, but if you prefer large biomes that never seem to end you can find them too, uncommonly
• added new biomes:
  • Cherry Woodland, a flowery woodland for cool climates
  • Spruce Forest, a cold thick forest of tall spruces with almost no understory
  • Birch Taiga, a thick forest made of tall birches and spruces
  • Old Growth Snowy Taiga, a snowy version of the giant spruce taiga
  • Old Growth Jungle, a jungle only found in the most extremely hot and humid zones, deep far from the ocean, consisting mostly in giant jungle trees (little to no regular sized trees)
  • Snowy Desert, for the most arid and cold places (previously it was using vanilla Snowy Slopes as a placeholder)
  • Stone Desert, a lifeless equivalent of desert for temperate places (Stony Peaks/Shore were used as placeholders for this)
  • Cold Windwept Plains, for arid plains in cold regions (before Windswept Plains covered both cold and warm zones)
  • Clay Shore, a beach made of clay blocks, for variety and to make clay less needlessly rare
  • Quartz Caves, near-surface caves interely made of Smooth Quartz, forming under hills
  • Basalt Caves, substituting Blackstone Caves because basalt is more realistic, and it nows features lot of lava lakes ("we have volcanos at home" edition)
  • Gravelly River, for arid biomes not warm enough for Desert River nor cold enough for Frozen River
  • Stony Peaks has been substituted by 6 peak biomes using different kind of stones: Andesite Peaks, Granite Peaks, Basalt Peaks, Calcite Peaks, and Terracotta Peaks.
• Deserts are now larger. Desert Dunes are only found inland on moderately hilly terrain with not much water, meaning they won't generate often. Flatter or hillier parts of the same climate zones turns into Badlands, which also act as fringe zones between deserts and more humid and/or cooler areas
• removed the Crystal Caves biome until I find a better way to make it work
• removed Red Sand Shore because oceanside Badlands are basically the same thing
• Now only proper forests and rivers have layers of dirt below grass; swamps now have mud instead, while other biomes will have just stone under a single layer of dirt, for realism but also to reduce unsightly hills and cliffs covered in dirt
• removed big oaks from Oak Pine Forest and made it sparser
• coasts have a more distinctive appearance, with sandy spots and vegetation more clumpy than evenly spaced
• more realistic distribution of flowers; unfortunately most flowers in vanilla Minecraft are from western habitats, so there's little to none available for other
• swamps are now less eager to climb dry lands too high
• reduced surface caves in swamp, river and beach biomes, because they mess up the terrain regions
• Caves at Y=48 and below should be smaller and rarer
• fixed most inconsistencies having cave biomes generating on the surface, which can still happen here and there for variety
• when caves biomes do happen to pop up on the surface, they'll no longer be covered in dirt and grass
• removed most stone and other mineral splotches from aboveground biomes
• Caves and Deep Caves spawn different, thougher mobs than the surface, for variety and especially to make spelunking less boring
• fixed trial chambers not spawning