mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-11-25 20:11:06 +01:00
98dad0b191
this is a somewhat ugly hack that uses minetest.generate_decorations which generates decorations regardless of biome so additional steps had to be taken to ensure no other decorations "spill over" due to this.
407 lines
16 KiB
Lua
407 lines
16 KiB
Lua
mcl_mapgen_core = {}
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local registered_generators = {}
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local lvm, nodes, param2 = 0, 0, 0
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local lvm_used = false
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local lvm_buffer = {}
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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--
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-- Aliases for map generator outputs
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--
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minetest.register_alias("mapgen_air", "air")
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minetest.register_alias("mapgen_stone", "mcl_core:stone")
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minetest.register_alias("mapgen_tree", "mcl_core:tree")
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minetest.register_alias("mapgen_leaves", "mcl_core:leaves")
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minetest.register_alias("mapgen_jungletree", "mcl_core:jungletree")
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minetest.register_alias("mapgen_jungleleaves", "mcl_core:jungleleaves")
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minetest.register_alias("mapgen_pine_tree", "mcl_core:sprucetree")
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minetest.register_alias("mapgen_pine_needles", "mcl_core:spruceleaves")
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minetest.register_alias("mapgen_apple", "mcl_core:leaves")
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minetest.register_alias("mapgen_water_source", "mcl_core:water_source")
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minetest.register_alias("mapgen_dirt", "mcl_core:dirt")
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minetest.register_alias("mapgen_dirt_with_grass", "mcl_core:dirt_with_grass")
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minetest.register_alias("mapgen_dirt_with_snow", "mcl_core:dirt_with_grass_snow")
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minetest.register_alias("mapgen_sand", "mcl_core:sand")
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minetest.register_alias("mapgen_gravel", "mcl_core:gravel")
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minetest.register_alias("mapgen_clay", "mcl_core:clay")
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minetest.register_alias("mapgen_lava_source", "air") -- Built-in lava generator is too unpredictable, we generate lava on our own
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minetest.register_alias("mapgen_cobble", "mcl_core:cobble")
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minetest.register_alias("mapgen_mossycobble", "mcl_core:mossycobble")
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minetest.register_alias("mapgen_junglegrass", "mcl_flowers:fern")
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minetest.register_alias("mapgen_stone_with_coal", "mcl_core:stone_with_coal")
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minetest.register_alias("mapgen_stone_with_iron", "mcl_core:stone_with_iron")
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minetest.register_alias("mapgen_desert_sand", "mcl_core:sand")
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minetest.register_alias("mapgen_desert_stone", "mcl_core:sandstone")
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minetest.register_alias("mapgen_sandstone", "mcl_core:sandstone")
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if minetest.get_modpath("mclx_core") then
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minetest.register_alias("mapgen_river_water_source", "mclx_core:river_water_source")
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else
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minetest.register_alias("mapgen_river_water_source", "mcl_core:water_source")
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end
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minetest.register_alias("mapgen_snow", "mcl_core:snow")
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minetest.register_alias("mapgen_snowblock", "mcl_core:snowblock")
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minetest.register_alias("mapgen_ice", "mcl_core:ice")
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minetest.register_alias("mapgen_stair_cobble", "mcl_stairs:stair_cobble")
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minetest.register_alias("mapgen_sandstonebrick", "mcl_core:sandstonesmooth")
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minetest.register_alias("mapgen_stair_sandstonebrick", "mcl_stairs:stair_sandstone")
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minetest.register_alias("mapgen_stair_sandstone_block", "mcl_stairs:stair_sandstone")
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minetest.register_alias("mapgen_stair_desert_stone", "mcl_stairs:stair_sandstone")
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dofile(modpath.."/api.lua")
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dofile(modpath.."/ores.lua")
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local mg_name = minetest.get_mapgen_setting("mg_name")
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local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
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-- Content IDs
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local c_bedrock = minetest.get_content_id("mcl_core:bedrock")
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local c_obsidian = minetest.get_content_id("mcl_core:obsidian")
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local c_stone = minetest.get_content_id("mcl_core:stone")
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local c_dirt = minetest.get_content_id("mcl_core:dirt")
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local c_dirt_with_grass = minetest.get_content_id("mcl_core:dirt_with_grass")
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local c_dirt_with_grass_snow = minetest.get_content_id("mcl_core:dirt_with_grass_snow")
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local c_reeds = minetest.get_content_id("mcl_core:reeds")
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local c_sand = minetest.get_content_id("mcl_core:sand")
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--local c_sandstone = minetest.get_content_id("mcl_core:sandstone")
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local c_void = minetest.get_content_id("mcl_core:void")
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local c_lava = minetest.get_content_id("mcl_core:lava_source")
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local c_water = minetest.get_content_id("mcl_core:water_source")
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local c_soul_sand = minetest.get_content_id("mcl_nether:soul_sand")
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local c_netherrack = minetest.get_content_id("mcl_nether:netherrack")
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local c_nether_lava = minetest.get_content_id("mcl_nether:nether_lava_source")
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--local c_end_stone = minetest.get_content_id("mcl_end:end_stone")
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local c_realm_barrier = minetest.get_content_id("mcl_core:realm_barrier")
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local c_top_snow = minetest.get_content_id("mcl_core:snow")
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local c_snow_block = minetest.get_content_id("mcl_core:snowblock")
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local c_clay = minetest.get_content_id("mcl_core:clay")
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local c_leaves = minetest.get_content_id("mcl_core:leaves")
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local c_jungleleaves = minetest.get_content_id("mcl_core:jungleleaves")
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--local c_jungletree = minetest.get_content_id("mcl_core:jungletree")
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local c_cocoa_1 = minetest.get_content_id("mcl_cocoas:cocoa_1")
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local c_cocoa_2 = minetest.get_content_id("mcl_cocoas:cocoa_2")
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local c_cocoa_3 = minetest.get_content_id("mcl_cocoas:cocoa_3")
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local c_vine = minetest.get_content_id("mcl_core:vine")
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local c_air = minetest.CONTENT_AIR
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local mg_flags = minetest.settings:get_flags("mg_flags")
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-- Inform other mods of dungeon setting for MCL2-style dungeons
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mcl_vars.mg_dungeons = mg_flags.dungeons and not superflat
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-- Disable builtin dungeons, we provide our own dungeons
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mg_flags.dungeons = false
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if superflat then
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-- Enforce superflat-like mapgen: no caves, decor, lakes and hills
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mg_flags.caves = false
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mg_flags.decorations = false
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minetest.set_mapgen_setting("mgflat_spflags", "nolakes,nohills", true)
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end
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if mg_name == "v7" then
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minetest.set_mapgen_setting("mgv7_cavern_threshold", "0.20", true)
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elseif mg_name == "valleys" then
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minetest.set_mapgen_setting("mgvalleys_cavern_threshold", "0.20", true)
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elseif mg_name == "carpathian" then
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minetest.set_mapgen_setting("mgcarpathian_cavern_threshold", "0.20", true)
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elseif mg_name == "v5" then
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minetest.set_mapgen_setting("mgv5_cavern_threshold", "0.20", true)
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elseif mg_name == "fractal" then
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minetest.set_mapgen_setting("mgfractal_cavern_threshold", "0.20", true)
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end
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local mg_flags_str = ""
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for k,v in pairs(mg_flags) do
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if v == false then
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k = "no" .. k
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end
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mg_flags_str = mg_flags_str .. k .. ","
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end
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if string.len(mg_flags_str) > 0 then
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mg_flags_str = string.sub(mg_flags_str, 1, string.len(mg_flags_str)-1)
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end
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minetest.set_mapgen_setting("mg_flags", mg_flags_str, true)
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local function between(x, y, z) -- x is between y and z (inclusive)
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return y <= x and x <= z
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end
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local function in_cube(tpos,wpos1,wpos2)
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local xmax=wpos2.x
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local xmin=wpos1.x
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local ymax=wpos2.y
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local ymin=wpos1.y
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local zmax=wpos2.z
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local zmin=wpos1.z
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if wpos1.x > wpos2.x then
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xmax=wpos1.x
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xmin=wpos2.x
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end
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if wpos1.y > wpos2.y then
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ymax=wpos1.y
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ymin=wpos2.y
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end
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if wpos1.z > wpos2.z then
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zmax=wpos1.z
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zmin=wpos2.z
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end
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if between(tpos.x,xmin,xmax) and between(tpos.y,ymin,ymax) and between(tpos.z,zmin,zmax) then
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return true
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end
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return false
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end
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-- Helper function for converting a MC probability to MT, with
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-- regards to MapBlocks.
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-- Some MC generated structures are generated on per-chunk
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-- probability.
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-- The MC probability is 1/x per Minecraft chunk (16×16).
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-- x: The MC probability is 1/x.
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-- minp, maxp: MapBlock limits
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-- returns: Probability (1/return_value) for a single MT mapblock
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local function minecraft_chunk_probability(x, minp, maxp)
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-- 256 is the MC chunk height
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return x * (((maxp.x-minp.x+1)*(maxp.z-minp.z+1)) / 256)
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end
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-- Takes x and z coordinates and minp and maxp of a generated chunk
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-- (in on_generated callback) and returns a biomemap index)
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-- Inverse function of biomemap_to_xz
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local function xz_to_biomemap_index(x, z, minp, maxp)
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local xwidth = maxp.x - minp.x + 1
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local zwidth = maxp.z - minp.z + 1
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local minix = x % xwidth
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local miniz = z % zwidth
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return (minix + miniz * zwidth) + 1
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end
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-- Generate basic layer-based nodes: void, bedrock, realm barrier, lava seas, etc.
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-- Also perform some basic node replacements.
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local bedrock_check
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if mcl_vars.mg_bedrock_is_rough then
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function bedrock_check(pos, _, pr)
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local y = pos.y
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-- Bedrock layers with increasing levels of roughness, until a perfecly flat bedrock later at the bottom layer
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-- This code assumes a bedrock height of 5 layers.
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local diff = mcl_vars.mg_bedrock_overworld_max - y -- Overworld bedrock
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local ndiff1 = mcl_vars.mg_bedrock_nether_bottom_max - y -- Nether bedrock, bottom
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local ndiff2 = mcl_vars.mg_bedrock_nether_top_max - y -- Nether bedrock, ceiling
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local top
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if diff == 0 or ndiff1 == 0 or ndiff2 == 4 then
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-- 50% bedrock chance
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top = 2
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elseif diff == 1 or ndiff1 == 1 or ndiff2 == 3 then
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-- 66.666...%
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top = 3
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elseif diff == 2 or ndiff1 == 2 or ndiff2 == 2 then
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-- 75%
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top = 4
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elseif diff == 3 or ndiff1 == 3 or ndiff2 == 1 then
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-- 90%
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top = 10
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elseif diff == 4 or ndiff1 == 4 or ndiff2 == 0 then
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-- 100%
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return true
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else
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-- Not in bedrock layer
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return false
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end
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return pr:next(1, top) <= top-1
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end
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end
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-- Helper function to set all nodes in the layers between min and max.
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-- content_id: Node to set
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-- check: optional.
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-- If content_id, node will be set only if it is equal to check.
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-- If function(pos_to_check, content_id_at_this_pos), will set node only if returns true.
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-- min, max: Minimum and maximum Y levels of the layers to set
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-- minp, maxp: minp, maxp of the on_generated
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-- lvm_used: Set to true if any node in this on_generated has been set before.
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--
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-- returns true if any node was set and lvm_used otherwise
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local function set_layers(data, area, content_id, check, min, max, minp, maxp, lvm_used, pr)
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if (maxp.y >= min and minp.y <= max) then
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for y = math.max(min, minp.y), math.min(max, maxp.y) do
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for x = minp.x, maxp.x do
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for z = minp.z, maxp.z do
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local p_pos = area:index(x, y, z)
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if check then
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if type(check) == "function" and check({x=x,y=y,z=z}, data[p_pos], pr) then
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data[p_pos] = content_id
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lvm_used = true
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elseif check == data[p_pos] then
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data[p_pos] = content_id
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lvm_used = true
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end
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else
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data[p_pos] = content_id
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lvm_used = true
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end
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end
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end
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end
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end
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return lvm_used
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end
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local function set_palette(minp,maxp,data2,area,biomemap,nodes)
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-- Flat area at y=0 to read biome 3 times faster than 5.3.0.get_biome_data(pos).biome: 43us vs 125us per iteration:
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if not biomemap then return end
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local aream = VoxelArea:new({MinEdge={x=minp.x, y=0, z=minp.z}, MaxEdge={x=maxp.x, y=0, z=maxp.z}})
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local nodes = minetest.find_nodes_in_area(minp, maxp, nodes)
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for n=1, #nodes do
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local n = nodes[n]
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local p_pos = area:index(n.x, n.y, n.z)
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local b_pos = aream:index(n.x, 0, n.z)
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local bn = minetest.get_biome_name(biomemap[b_pos])
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if bn then
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local biome = minetest.registered_biomes[bn]
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if biome and biome._mcl_biome_type then
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data2[p_pos] = biome._mcl_palette_index
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lvm_used = true
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end
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end
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end
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return lvm_used
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end
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-- Below the bedrock, generate air/void
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local function world_structure(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
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local biomemap --ymin, ymax
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local lvm_used = false
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local pr = PseudoRandom(blockseed)
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-- The Void below the Nether:
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lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mapgen_edge_min , mcl_vars.mg_nether_min -1, minp, maxp, lvm_used, pr)
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-- [[ THE NETHER: mcl_vars.mg_nether_min mcl_vars.mg_nether_max ]]
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-- The Air on the Nether roof, https://git.minetest.land/MineClone2/MineClone2/issues/1186
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lvm_used = set_layers(data, area, c_air , nil, mcl_vars.mg_nether_max +1, mcl_vars.mg_nether_max + 128 , minp, maxp, lvm_used, pr)
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-- The Void above the Nether below the End:
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lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_nether_max + 128 +1, mcl_vars.mg_end_min -1, minp, maxp, lvm_used, pr)
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-- [[ THE END: mcl_vars.mg_end_min mcl_vars.mg_end_max ]]
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-- The Void above the End below the Realm barrier:
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lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_end_max +1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used, pr)
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-- Realm barrier between the Overworld void and the End
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lvm_used = set_layers(data, area, c_realm_barrier, nil, mcl_vars.mg_realm_barrier_overworld_end_min , mcl_vars.mg_realm_barrier_overworld_end_max , minp, maxp, lvm_used, pr)
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-- The Void above Realm barrier below the Overworld:
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lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_vars.mg_overworld_min -1, minp, maxp, lvm_used, pr)
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if mg_name ~= "singlenode" then
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-- Bedrock
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lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_overworld_min, mcl_vars.mg_bedrock_overworld_max, minp, maxp, lvm_used, pr)
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lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_bottom_max, minp, maxp, lvm_used, pr)
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lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_top_min, mcl_vars.mg_bedrock_nether_top_max, minp, maxp, lvm_used, pr)
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-- Flat Nether
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if mg_name == "flat" then
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lvm_used = set_layers(data, area, c_air, nil, mcl_vars.mg_flat_nether_floor, mcl_vars.mg_flat_nether_ceiling, minp, maxp, lvm_used, pr)
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end
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-- Big lava seas by replacing air below a certain height
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if mcl_vars.mg_lava then
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lvm_used = set_layers(data, area, c_lava, c_air, mcl_vars.mg_overworld_min, mcl_vars.mg_lava_overworld_max, minp, maxp, lvm_used, pr)
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lvm_used = set_layers(data, area, c_nether_lava, c_air, mcl_vars.mg_nether_min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used, pr)
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end
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end
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local deco = false
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if minp.y > mcl_vars.mg_nether_deco_max - 64 and maxp.y < mcl_vars.mg_nether_max + 128 then
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deco = {min=mcl_vars.mg_nether_deco_max,max=mcl_vars.mg_nether_max}
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end
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return lvm_used, lvm_used, deco
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end
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local function block_fixes(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
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local biomemap = minetest.get_mapgen_object("biomemap")
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local lvm_used = false
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local pr = PseudoRandom(blockseed)
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if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then
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-- Set param2 (=color) of sugar cane and grass
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lvm_used = set_palette(minp,maxp,data2,area,biomemap,{"mcl_core:reeds","mcl_core:dirt_with_grass"})
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end
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return lvm_used
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end
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-- End block fixes:
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local function end_basic(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
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if maxp.y < mcl_vars.mg_end_min or minp.y > mcl_vars.mg_end_max then return end
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local biomemap --ymin, ymax
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local lvm_used = false
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local pr = PseudoRandom(blockseed)
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local nodes
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if mg_name ~= "v6" then
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nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source"})
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if #nodes > 0 then
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lvm_used = true
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for _,n in pairs(nodes) do
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data[area:index(n.x, n.y, n.z)] = c_air
|
||
end
|
||
end
|
||
end
|
||
return true, false
|
||
end
|
||
|
||
|
||
mcl_mapgen_core.register_generator("world_structure", world_structure, nil, 1, true)
|
||
mcl_mapgen_core.register_generator("end_fixes", end_basic, function(minp,maxp)
|
||
if maxp.y < mcl_vars.mg_end_min or minp.y > mcl_vars.mg_end_max then return end
|
||
end, 9999, true)
|
||
|
||
if mg_name ~= "v6" and mg_name ~= "singlenode" then
|
||
mcl_mapgen_core.register_generator("block_fixes", block_fixes, nil, 9999, true)
|
||
end
|
||
|
||
if mg_name == "v6" then
|
||
dofile(modpath.."/v6.lua")
|
||
end
|
||
|
||
-- This should be moved to mcl_structures eventually if the dependencies can be sorted out.
|
||
mcl_mapgen_core.register_generator("structures",nil, function(minp, maxp, blockseed)
|
||
local gennotify = minetest.get_mapgen_object("gennotify")
|
||
local has_struct = {}
|
||
local has = false
|
||
local poshash = minetest.hash_node_position(minp)
|
||
for _,struct in pairs(mcl_structures.registered_structures) do
|
||
local pr = PseudoRandom(blockseed + 42)
|
||
if struct.deco_id then
|
||
for _, pos in pairs(gennotify["decoration#"..struct.deco_id] or {}) do
|
||
local realpos = vector.offset(pos,0,1,0)
|
||
minetest.remove_node(realpos)
|
||
minetest.fix_light(vector.offset(pos,-1,-1,-1),vector.offset(pos,1,3,1))
|
||
if struct.chunk_probability == nil or (not has and pr:next(1,struct.chunk_probability) == 1 ) then
|
||
mcl_structures.place_structure(realpos,struct,pr,blockseed)
|
||
has=true
|
||
end
|
||
end
|
||
elseif struct.static_pos then
|
||
for _,p in pairs(struct.static_pos) do
|
||
if in_cube(p,minp,maxp) then
|
||
mcl_structures.place_structure(p,struct,pr,blockseed)
|
||
end
|
||
end
|
||
end
|
||
end
|
||
return false, false, false
|
||
end, 100, true)
|