--[[ Everness. Never ending discovery in Everness mapgen. Copyright (C) 2025 SaKeL This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. --]] -- -- Register biomes -- local y_max = Everness.settings.biomes.everness_crystal_forest_under.y_max local y_min = Everness.settings.biomes.everness_crystal_forest_under.y_min -- Crystal Forest Under Everness:register_biome({ name = 'everness:crystal_forest_under', node_cave_liquid = { 'mapgen_water_source', 'mapgen_lava_source' }, node_dungeon = 'everness:crystal_cobble', node_dungeon_alt = 'everness:crystal_mossy_cobble', node_dungeon_stair = 'stairs:stair_crystal_cobble', y_max = y_max, y_min = y_min, heat_point = 35, humidity_point = 50, }) -- -- Register decorations -- Everness:register_decoration({ name = 'everness:crystal_forest_under_floors', deco_type = 'simple', place_on = { 'default:stone' }, sidelen = 16, place_offset_y = -1, fill_ratio = 10, biomes = { 'everness:crystal_forest_under' }, y_max = y_max, y_min = y_min, decoration = { 'everness:crystal_cave_dirt_with_moss', 'everness:crystal_moss_block' }, flags = 'all_floors, force_placement' }) Everness:register_decoration({ name = 'everness:crystal_forest_under_ceilings', deco_type = 'simple', place_on = { 'default:stone' }, sidelen = 16, fill_ratio = 0.4, biomes = { 'everness:crystal_forest_under' }, y_max = y_max, y_min = y_min, flags = 'all_ceilings', decoration = { 'everness:crystal_moss_block' }, }) Everness:register_decoration({ name = 'everness:crystal_forest_under_vines', deco_type = 'simple', place_on = { 'everness:crystal_moss_block' }, sidelen = 16, fill_ratio = 0.09, biomes = { 'everness:crystal_forest_under' }, param2 = 8, decoration = { 'everness:twisted_vine_1', 'everness:twisted_vine_2', 'everness:golden_vine_1', 'everness:golden_vine_2' }, y_max = y_max, y_min = y_min, flags = 'all_ceilings', spawn_by = 'air', num_spawn_by = 8 }) Everness:register_decoration({ name = 'everness:crystal_forest_under_crystal_sphere_cluster', deco_type = 'simple', place_on = { 'everness:crystal_cave_dirt_with_moss', 'everness:crystal_moss_block' }, sidelen = 16, noise_params = { offset = 0, scale = 0.0005, spread = { x = 250, y = 250, z = 250 }, seed = 2, octaves = 3, persist = 0.66 }, biomes = { 'everness:crystal_forest_under' }, y_max = y_max - 1500 > y_min and y_max - 1500 or y_max, y_min = y_min, flags = 'all_floors', decoration = { 'everness:marker' }, }) Everness:register_decoration({ name = 'everness:crystal_forest_under_crystal_cyan', deco_type = 'simple', place_on = { 'everness:crystal_cave_dirt_with_moss', 'everness:crystal_moss_block' }, sidelen = 16, noise_params = { offset = 0, scale = 0.02, spread = { x = 200, y = 200, z = 200 }, seed = 329, octaves = 3, persist = 0.6 }, biomes = { 'everness:crystal_forest_under' }, y_max = y_max, y_min = y_min, decoration = { 'everness:crystal_cyan', 'everness:crystal_purple', 'everness:crystal_orange' }, flags = 'all_floors', param2 = 1 }) Everness:register_decoration({ name = 'everness:crystal_forest_under_twisted_crystal_grass', deco_type = 'simple', place_on = { 'everness:crystal_cave_dirt_with_moss', 'everness:crystal_moss_block' }, sidelen = 16, noise_params = { offset = 0, scale = 0.2, spread = { x = 100, y = 100, z = 100 }, seed = 801, octaves = 3, persist = 0.7 }, biomes = { 'everness:crystal_forest_under' }, y_max = y_max - 500 > y_min and y_max - 500 or y_max, y_min = y_min, decoration = 'everness:twisted_crystal_grass', flags = 'all_floors', param2 = 0, param2_max = 239, }) Everness:register_decoration({ name = 'everness:crystal_forest_under_twisted_crystal_spire', deco_type = 'simple', place_on = { 'everness:crystal_cave_dirt_with_moss', 'everness:crystal_moss_block' }, sidelen = 16, noise_params = { offset = -0.05, scale = 0.1, spread = { x = 100, y = 100, z = 100 }, seed = 801, octaves = 3, persist = 0.7 }, biomes = { 'everness:crystal_forest_under' }, y_max = y_max - 500 > y_min and y_max - 500 or y_max, y_min = y_min, decoration = 'everness:twisted_crystal_spire', flags = 'all_floors', param2 = 0, param2_max = 239, }) Everness:register_decoration({ name = 'everness:crystal_forest_under_crystal_cyan_ceiling', deco_type = 'simple', place_on = { 'default:stone' }, sidelen = 16, noise_params = { offset = 0, scale = 0.02, spread = { x = 200, y = 200, z = 200 }, seed = 329, octaves = 3, persist = 0.6 }, biomes = { 'everness:crystal_forest_under' }, y_max = y_max, y_min = y_min, decoration = { 'everness:crystal_cyan', 'everness:crystal_purple', 'everness:crystal_orange' }, flags = 'all_ceilings', }) -- -- On Generated -- local math_floor = math.floor local math_sin = math.sin local floor_nodes = {} local function register_floor_node(name) local id = core.get_content_id(name) if id and id ~= core.CONTENT_IGNORE and id ~= core.CONTENT_AIR then floor_nodes[id] = true end end register_floor_node('everness:crystal_cave_dirt_with_moss') register_floor_node('everness:crystal_moss_block') local c_air = core.get_content_id('air') local replaceable_nodes = { [c_air] = true, } local function register_replaceable_node(name) local id = core.get_content_id(name) if id and id ~= core.CONTENT_IGNORE and id ~= core.CONTENT_AIR then replaceable_nodes[id] = true end end register_replaceable_node('everness:twisted_crystal_grass') register_replaceable_node('everness:twisted_crystal_spire') register_replaceable_node('everness:crystal_cyan') register_replaceable_node('everness:crystal_purple') register_replaceable_node('everness:crystal_orange') local biome_id_everness_crystal_forest_under = core.get_biome_id('everness:crystal_forest_under') local deco_id_crystal_forest_under_crystal_sphere_cluster = core.get_decoration_id('everness:crystal_forest_under_crystal_sphere_cluster') -- `core.read_schematic` here so we don't cache the schem file, otherwise `replacements` will not work local schem_crystal_sphere_cluster = core.read_schematic(core.get_modpath('everness') .. '/schematics/everness_crystal_purple_cluster.mts', {}) local crystal_sphere_cluster_size = { x = 20, y = 19, z = 19 } local crystal_sphere_cluster_size_x = math.round(crystal_sphere_cluster_size.x / 2) local crystal_sphere_cluster_size_z = math.round(crystal_sphere_cluster_size.z / 2) local crystal_sphere_cluster_safe_volume = (crystal_sphere_cluster_size.x * crystal_sphere_cluster_size.y * crystal_sphere_cluster_size.z) / 2 local crystal_sphere_cluster_place_on = Everness.to_set(core.registered_decorations['everness:crystal_forest_under_crystal_sphere_cluster'].place_on) Everness:register_gen_notify_decoration({ deco_id_crystal_forest_under_crystal_sphere_cluster }) Everness:add_to_queue_on_generated({ name = 'everness:crystal_forest_under', can_run = function(biomemap, chunk_biomes) return (chunk_biomes and chunk_biomes[biome_id_everness_crystal_forest_under]) or table.indexof(biomemap, biome_id_everness_crystal_forest_under) ~= -1 end, -- 1. on_data: Raw VoxelManip content/param2 manipulation (committed automatically via set_data) on_data = function(minp, maxp, area, data, p2data, gennotify, rand, shared_args, biomemap) -- -- Crystal Clusters (Marker-free Worley Cellular Noise L-System) -- local cell_size = 32 local min_gx = math_floor(minp.x / cell_size) - 1 local max_gx = math_floor(maxp.x / cell_size) + 1 local min_gz = math_floor(minp.z / cell_size) - 1 local max_gz = math_floor(maxp.z / cell_size) + 1 local ystride = area.ystride local chunk_size_x = maxp.x - minp.x + 1 for cx = min_gx, max_gx do for cz = min_gz, max_gz do local n = math_sin(cx * 127.1 + cz * 311.7 + 5432.1) * 43758.5453 local rand_val = (n - math_floor(n)) -- 80% chance cell has a crystal cluster, 20% empty spacing if rand_val < 0.80 then local n2 = math_sin(cx * 269.5 + cz * 183.3 + 9876.5) * 43758.5453 local rx = (n2 - math_floor(n2)) * 0.7 + 0.15 local n3 = math_sin(cx * 419.2 + cz * 371.9 + 1357.9) * 43758.5453 local rz = (n3 - math_floor(n3)) * 0.7 + 0.15 local seed_x = math_floor((cx + rx) * cell_size) local seed_z = math_floor((cz + rz) * cell_size) if seed_x >= minp.x and seed_x <= maxp.x and seed_z >= minp.z and seed_z <= maxp.z then -- Check column biome local col_idx = (seed_z - minp.z) * chunk_size_x + (seed_x - minp.x) + 1 if not biomemap or not biomemap[col_idx] or biomemap[col_idx] == biome_id_everness_crystal_forest_under then -- Color zoning (Orange 45%, Cyan 30%, Purple 25%) local color_choice = math_floor((rand_val / 0.80) * 3) % 3 local rand_color = (color_choice == 0 and 'orange') or (color_choice == 1 and 'cyan') or 'purple' -- Scan vertical column for cavern floor surface for y = maxp.y - 1, minp.y, -1 do local vi = area:index(seed_x, y, seed_z) local node_id = data[vi] local above_id = data[vi + ystride] if floor_nodes[node_id] and replaceable_nodes[above_id] then -- Check vertical clearance (counting air and replaceable grass/decorations) local clearance = 0 for h = 1, 12 do local check_y = y + h if check_y <= maxp.y and replaceable_nodes[data[vi + h * ystride]] then clearance = clearance + 1 else break end end if clearance >= 2 then local stage = 1 if clearance >= 9 and rand_val < 0.25 then stage = 3 -- Grand Cavern Spire elseif clearance >= 5 and rand_val < 0.55 then stage = 2 -- Medium Cluster end local cluster_pos = vector.new(seed_x, y + 1, seed_z) Everness.spawn_crystal_cluster_vmanip( nil, area, data, p2data, cluster_pos, rand_color, stage, rand ) end break -- Placed at highest valid floor in this column end end end end end end end end, -- 2. after_set_data: Schematics placement on VoxelManip after_set_data = function(minp, maxp, vm, area, data, p2data, gennotify, rand, shared_args) -- -- Crystal Sphere Cluster -- for _, pos in ipairs(gennotify['decoration#' .. (deco_id_crystal_forest_under_crystal_sphere_cluster or '')] or {}) do -- `pos` is position of the 'place_on' node local marker_pos = vector.new(pos.x, pos.y + 1, pos.z) local marker_node = core.get_node(marker_pos) local place_on_node = core.get_node(pos) local crystal_sphere_cluster_y_dis = rand:next(5, 9) if marker_node and marker_node.name == 'everness:marker' then -- remove marker core.remove_node(marker_pos) if place_on_node and crystal_sphere_cluster_place_on[place_on_node.name] then -- enough air to place structure ? local positions = core.find_nodes_in_area( vector.new( pos.x - crystal_sphere_cluster_size_x, pos.y - crystal_sphere_cluster_y_dis, pos.z - crystal_sphere_cluster_size_z ), vector.new( pos.x + crystal_sphere_cluster_size_x, pos.y - crystal_sphere_cluster_y_dis + crystal_sphere_cluster_size.y, pos.z + crystal_sphere_cluster_size_z ), { 'air', 'everness:coral_tree', 'everness:crystal_block_orange', 'everness:crystal_block_purple', 'everness:crystal_block_cyan', }, true ) local air = positions.air or {} local tree = positions['everness:coral_tree'] or {} local block_orange = positions['everness:crystal_block_orange'] or {} local block_purple = positions['everness:crystal_block_purple'] or {} local block_cyan = positions['everness:crystal_block_cyan'] or {} if #air > crystal_sphere_cluster_safe_volume -- do not overlap and not ( #tree > 0 or #block_orange > 0 or #block_purple > 0 or #block_cyan > 0 ) then local replacements local rand_color if rand:next(0, 100) < 25 then local colors = { 'orange', 'cyan' } rand_color = colors[rand:next(1, #colors)] replacements = { ['everness:crystal_block_purple'] = 'everness:crystal_block_' .. rand_color, ['everness:crystal_purple'] = 'everness:crystal_' .. rand_color } end core.place_schematic_on_vmanip( vm, vector.new(marker_pos.x, marker_pos.y - crystal_sphere_cluster_y_dis, marker_pos.z), schem_crystal_sphere_cluster, 'random', replacements, true, 'place_center_x, place_center_z' ) -- core.log('action', '[Everness] Crystal Sphere Cluster ' .. (rand_color or 'orange') .. ' was placed at ' .. pos:to_string()) end end end end end })