everness/mapgen_mineral_waters_under...

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--[[
Everness. Never ending discovery in Everness mapgen.
Copyright (C) 2024 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_mineral_waters_under.y_max
local y_min = Everness.settings.biomes.everness_mineral_waters_under.y_min
-- Mineral Waters
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Everness:register_biome({
name = 'everness:mineral_waters_under',
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node_stone = 'everness:mineral_cave_stone',
node_filler = 'everness:mineral_cave_stone',
node_cave_liquid = 'everness:lava_source',
node_water = 'air',
node_dungeon = 'everness:mineral_stone_brick',
node_dungeon_alt = 'everness:mineral_stone_brick_with_growth',
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node_dungeon_stair = 'stairs:stair_mineral_stone_brick',
y_max = y_max,
y_min = y_min,
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vertical_blend = 16,
heat_point = 78,
humidity_point = 58,
})
--
-- Ores
--
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minetest.register_on_mods_loaded(function()
local c_mapgen_stone = minetest.get_content_id('mapgen_stone')
local mapgen_stone_itemstring = minetest.get_name_from_content_id(c_mapgen_stone)
for name, def in pairs(minetest.registered_ores) do
local wherein = def.wherein
local biomes = def.biomes
if type(def.wherein) == 'string' then
wherein = { wherein }
end
-- Register the same ores what are defined for `mapgen_stone`
if
table.indexof(wherein, mapgen_stone_itemstring) > -1
and not biomes
then
def.wherein = { 'everness:mineral_cave_stone' }
def.biomes = { 'everness:mineral_waters_under' }
def.y_max = y_max
def.y_min = y_min
Everness:register_ore(def)
end
end
end)
-- Blob ore.
-- These before scatter ores to avoid other ores in blobs.
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Everness:register_ore({
ore_type = 'blob',
ore = 'everness:mineral_stone',
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wherein = { 'everness:mineral_cave_stone' },
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_max = y_max,
y_min = y_min,
noise_threshold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = { x = 5, y = 5, z = 5 },
seed = 766,
octaves = 1,
persist = 0.0
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},
biomes = { 'everness:mineral_waters_under' }
})
--
-- Register decorations
--
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Everness:register_decoration({
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name = 'everness:mineral_waters_under_floors',
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deco_type = 'simple',
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place_on = { 'everness:mineral_cave_stone' },
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sidelen = 16,
place_offset_y = -1,
fill_ratio = 10,
biomes = { 'everness:mineral_waters_under' },
y_max = y_max,
y_min = y_min,
flags = 'all_floors, force_placement',
decoration = {
'everness:mineral_lava_stone'
},
})
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--
-- Floors
--
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Everness:register_decoration({
name = 'everness:mineral_waters_under_volcanic_spike',
deco_type = 'simple',
place_on = {
'everness:mineral_lava_stone',
'everness:mineral_cave_stone'
},
sidelen = 16,
noise_params = {
offset = -0.03,
scale = 0.09,
spread = { x = 200, y = 200, z = 200 },
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = { 'everness:mineral_waters_under' },
spawn_by = 'air',
check_offset = 0,
num_spawn_by = 1,
decoration = {
'everness:marker'
},
y_max = y_max,
y_min = y_min,
flags = 'all_floors',
})
Everness:register_decoration({
name = 'everness:mineral_waters_under_lava_stone_spike',
deco_type = 'simple',
place_on = {
'everness:mineral_lava_stone',
'everness:mineral_cave_stone'
},
sidelen = 16,
noise_params = {
offset = -0.015,
scale = 0.075,
spread = { x = 200, y = 200, z = 200 },
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = { 'everness:mineral_waters_under' },
decoration = {
'everness:marker'
},
y_max = y_max,
y_min = y_min,
flags = 'all_floors',
})
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Everness:register_decoration({
name = 'everness:mineral_waters_under_lava_tree',
deco_type = 'simple',
place_on = {
'everness:mineral_lava_stone',
'everness:mineral_cave_stone',
'everness:mineral_lava_stone_with_moss'
},
sidelen = 16,
fill_ratio = 0.025,
biomes = { 'everness:mineral_waters_under' },
decoration = {
'everness:marker'
},
y_max = y_max,
y_min = y_min,
flags = 'all_floors',
})
--
-- Ceilings
--
Everness:register_decoration({
name = 'everness:mineral_waters_under_volcanic_spike_ceiling',
deco_type = 'simple',
place_on = {
'everness:mineral_lava_stone',
'everness:mineral_cave_stone'
},
sidelen = 16,
noise_params = {
offset = -0.03,
scale = 0.09,
spread = { x = 200, y = 200, z = 200 },
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = { 'everness:mineral_waters_under' },
decoration = {
'everness:marker'
},
y_max = y_max,
y_min = y_min,
flags = 'all_ceilings',
})
--
-- On Generated
--
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-- Get the content IDs for the nodes used
local c_everness_wall_vine_cave_cyan = minetest.get_content_id('everness:wall_vine_cave_cyan')
local c_everness_wall_vine_cave_violet = minetest.get_content_id('everness:wall_vine_cave_violet')
local c_everness_wall_vine_cave_blue = minetest.get_content_id('everness:wall_vine_cave_blue')
local c_everness_mineral_lava_stone = minetest.get_content_id('everness:mineral_lava_stone')
local c_everness_mineral_cave_stone = minetest.get_content_id('everness:mineral_cave_stone')
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local c_everness_mineral_cave_cobblestone = minetest.get_content_id('everness:mineral_cave_cobblestone')
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local c_everness_lava_source = minetest.get_content_id('everness:lava_source')
local c_everness_marker = minetest.get_content_id('everness:marker')
local c_everness_volcanic_rock = minetest.get_content_id('everness:volcanic_rock')
local c_everness_volcanic_spike_1 = minetest.get_content_id('everness:volcanic_spike_1')
local c_everness_volcanic_spike_2 = minetest.get_content_id('everness:volcanic_spike_2')
local c_everness_volcanic_spike_3 = minetest.get_content_id('everness:volcanic_spike_3')
local c_everness_volcanic_spike_4 = minetest.get_content_id('everness:volcanic_spike_4')
local c_everness_volcanic_spike_5 = minetest.get_content_id('everness:volcanic_spike_5')
local c_everness_volcanic_spike_6 = minetest.get_content_id('everness:volcanic_spike_6')
local c_everness_volcanic_spike_7 = minetest.get_content_id('everness:volcanic_spike_7')
local c_everness_mineral_cave_stone_spike_1 = minetest.get_content_id('everness:mineral_cave_stone_spike_1')
local c_everness_mineral_cave_stone_spike_2 = minetest.get_content_id('everness:mineral_cave_stone_spike_2')
local c_everness_mineral_cave_stone_spike_3 = minetest.get_content_id('everness:mineral_cave_stone_spike_3')
local c_everness_mineral_cave_stone_spike_4 = minetest.get_content_id('everness:mineral_cave_stone_spike_4')
local c_everness_mineral_cave_stone_spike_5 = minetest.get_content_id('everness:mineral_cave_stone_spike_5')
local c_everness_mineral_cave_stone_spike_6 = minetest.get_content_id('everness:mineral_cave_stone_spike_6')
local c_everness_mineral_cave_stone_spike_7 = minetest.get_content_id('everness:mineral_cave_stone_spike_7')
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local c_everness_mineral_lava_stone_spike_1 = minetest.get_content_id('everness:mineral_lava_stone_spike_1')
local c_everness_mineral_lava_stone_spike_2 = minetest.get_content_id('everness:mineral_lava_stone_spike_2')
local c_everness_mineral_lava_stone_spike_3 = minetest.get_content_id('everness:mineral_lava_stone_spike_3')
local c_everness_mineral_lava_stone_spike_4 = minetest.get_content_id('everness:mineral_lava_stone_spike_4')
local c_everness_mineral_lava_stone_spike_5 = minetest.get_content_id('everness:mineral_lava_stone_spike_5')
local c_everness_mineral_lava_stone_spike_6 = minetest.get_content_id('everness:mineral_lava_stone_spike_6')
local c_everness_mineral_lava_stone_spike_7 = minetest.get_content_id('everness:mineral_lava_stone_spike_7')
local c_everness_mineral_lava_stone_with_moss = minetest.get_content_id('everness:mineral_lava_stone_with_moss')
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-- Biome IDs
local biome_id_everness_mineral_waters_under = minetest.get_biome_id('everness:mineral_waters_under')
-- Decoration IDs
local d_everness_mineral_waters_under_volcanic_spike = minetest.get_decoration_id('everness:mineral_waters_under_volcanic_spike')
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local d_everness_mineral_waters_under_volcanic_spike_ceiling = minetest.get_decoration_id('everness:mineral_waters_under_volcanic_spike_ceiling')
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local d_everness_mineral_waters_under_lava_stone_spike = minetest.get_decoration_id('everness:mineral_waters_under_lava_stone_spike')
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local d_everness_mineral_waters_under_lava_tree = minetest.get_decoration_id('everness:mineral_waters_under_lava_tree')
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local volcanic_spike_place_on = minetest.registered_decorations['everness:mineral_waters_under_volcanic_spike'].place_on
volcanic_spike_place_on = type(volcanic_spike_place_on) == 'string' and { volcanic_spike_place_on } or volcanic_spike_place_on
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local volcanic_spike_ceiling_place_on = minetest.registered_decorations['everness:mineral_waters_under_volcanic_spike_ceiling'].place_on
volcanic_spike_ceiling_place_on = type(volcanic_spike_ceiling_place_on) == 'string' and { volcanic_spike_ceiling_place_on } or volcanic_spike_ceiling_place_on
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local lava_stone_spike_place_on = minetest.registered_decorations['everness:mineral_waters_under_lava_stone_spike'].place_on
lava_stone_spike_place_on = type(lava_stone_spike_place_on) == 'string' and { lava_stone_spike_place_on } or lava_stone_spike_place_on
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local lava_tree_place_on = minetest.registered_decorations['everness:mineral_waters_under_lava_tree'].place_on
lava_tree_place_on = type(lava_tree_place_on) == 'string' and { lava_tree_place_on } or lava_tree_place_on
-- `minetest.read_schematic` here so we don't cache the schem file, otherwise `replacements` will not work
local schem_everness_lava_tree = minetest.read_schematic(minetest.get_modpath('everness') .. '/schematics/everness_lava_tree.mts', {})
local lava_tree_size = { x = 7, y = 13, z = 7 }
local lava_tree_size_x = math.round(lava_tree_size.x / 2)
local lava_tree_size_z = math.round(lava_tree_size.z / 2)
local lava_tree_safe_volume = lava_tree_size.x * lava_tree_size.y * lava_tree_size.z
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local wall_vines = {
c_everness_wall_vine_cave_cyan,
c_everness_wall_vine_cave_violet,
c_everness_wall_vine_cave_blue
}
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local volcanic_spike_map = {
c_everness_volcanic_rock,
c_everness_volcanic_spike_1,
c_everness_volcanic_spike_2,
c_everness_volcanic_spike_3,
c_everness_volcanic_spike_4,
c_everness_volcanic_spike_5,
c_everness_volcanic_spike_6,
c_everness_volcanic_spike_7
}
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local cave_stone_spike_map = {
c_everness_mineral_cave_cobblestone,
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c_everness_mineral_cave_stone_spike_1,
c_everness_mineral_cave_stone_spike_2,
c_everness_mineral_cave_stone_spike_3,
c_everness_mineral_cave_stone_spike_4,
c_everness_mineral_cave_stone_spike_5,
c_everness_mineral_cave_stone_spike_6,
c_everness_mineral_cave_stone_spike_7
}
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local lava_stone_spike_map = {
c_everness_mineral_lava_stone,
c_everness_mineral_lava_stone_spike_1,
c_everness_mineral_lava_stone_spike_2,
c_everness_mineral_lava_stone_spike_3,
c_everness_mineral_lava_stone_spike_4,
c_everness_mineral_lava_stone_spike_5,
c_everness_mineral_lava_stone_spike_6,
c_everness_mineral_lava_stone_spike_7
}
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minetest.set_gen_notify({ decoration = true }, {
d_everness_mineral_waters_under_volcanic_spike,
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d_everness_mineral_waters_under_lava_stone_spike,
d_everness_mineral_waters_under_volcanic_spike_ceiling,
d_everness_mineral_waters_under_lava_tree
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})
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Everness:add_to_queue_on_generated({
name = 'everness:mineral_waters_under',
can_run = function(biomemap)
return table.indexof(biomemap, biome_id_everness_mineral_waters_under) ~= -1
end,
-- read/write to `data` what will be eventually saved (set_data)
-- used for voxelmanip `data` manipulation
on_data = function(minp, maxp, area, data, p2data, gennotify, rand, shared_args)
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local rand_version = rand:next(1, 2)
shared_args.rand_version = rand_version
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if rand_version == 1 then
--
-- Lakes
--
for z = minp.z, maxp.z do
for y = minp.y, maxp.y do
for x = minp.x, maxp.x do
local ai = area:index(x, y, z)
local c_current = data[ai]
-- +Y, -Y, +X, -X, +Z, -Z
-- top, bottom, right, left, front, back
-- right
local c_right = data[ai + 1]
-- left
local c_left = data[ai - 1]
-- front
local c_front = data[ai + area.zstride]
-- back
local c_back = data[ai - area.zstride]
local keep_going = true
local while_count = 1
local max_dig_depth = 11
if
c_current == c_everness_mineral_lava_stone
and (
c_right == c_everness_mineral_lava_stone
or c_right == c_everness_mineral_cave_stone
or c_right == c_everness_lava_source
)
and (
c_left == c_everness_mineral_lava_stone
or c_left == c_everness_mineral_cave_stone
or c_left == c_everness_lava_source
)
and (
c_front == c_everness_mineral_lava_stone
or c_front == c_everness_mineral_cave_stone
or c_front == c_everness_lava_source
)
and (
c_back == c_everness_mineral_lava_stone
or c_back == c_everness_mineral_cave_stone
or c_back == c_everness_lava_source
)
then
-- dig below
while keep_going and while_count <= max_dig_depth do
local while_index = ai - area.ystride * while_count
if
-- below
data[while_index] == c_everness_mineral_cave_stone
and (
-- right
data[while_index + 1 + area.ystride] == c_everness_mineral_lava_stone
or data[while_index + 1 + area.ystride] == c_everness_lava_source
or data[while_index + 1 + area.ystride] == c_everness_mineral_cave_stone
)
and (
-- left
data[while_index - 1 + area.ystride] == c_everness_mineral_lava_stone
or data[while_index - 1 + area.ystride] == c_everness_lava_source
or data[while_index - 1 + area.ystride] == c_everness_mineral_cave_stone
)
and (
-- front
data[while_index + area.zstride + area.ystride] == c_everness_mineral_lava_stone
or data[while_index + area.zstride + area.ystride] == c_everness_lava_source
or data[while_index + area.zstride + area.ystride] == c_everness_mineral_cave_stone
)
and (
-- back
data[while_index - area.zstride + area.ystride] == c_everness_mineral_lava_stone
or data[while_index - area.zstride + area.ystride] == c_everness_lava_source
or data[while_index - area.zstride + area.ystride] == c_everness_mineral_cave_stone
)
then
data[while_index + area.ystride] = c_everness_lava_source
else
keep_going = false
end
while_count = while_count + 1
end
end
end
end
end
else
for y = minp.y, maxp.y do
for z = minp.z, maxp.z do
for x = minp.x, maxp.x do
local ai = area:index(x, y, z)
if
data[ai] == c_everness_mineral_lava_stone
and data[ai + area.ystride] == minetest.CONTENT_AIR
and rand:next(0, 100) <= 10
then
local radius = 7
local chance_max = 80
for h = -3, 3 do
for i = -radius, radius do
for j = -radius, radius do
local idx = ai + i + (area.zstride * j) + (area.ystride * h)
local distance = math.round(vector.distance(area:position(ai), area:position(idx)))
local chance_moss = math.round(chance_max / distance)
if chance_moss > chance_max then
chance_moss = chance_max
end
if
data[idx] == c_everness_mineral_lava_stone
and rand:next(0, 100) < chance_moss
then
data[idx] = c_everness_mineral_lava_stone_with_moss
end
end
end
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end
end
end
end
end
end
--
-- Decorations
--
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for y = minp.y, maxp.y do
for z = minp.z, maxp.z do
for x = minp.x, maxp.x do
local vi = area:index(x, y, z)
if
data[vi] == minetest.CONTENT_AIR
and (
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data[vi + 1] == c_everness_mineral_cave_stone
or data[vi - 1] == c_everness_mineral_cave_stone
or data[vi + area.zstride] == c_everness_mineral_cave_stone
or data[vi - area.zstride] == c_everness_mineral_cave_stone
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)
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and rand:next(0, 100) <= 15
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then
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-- Decorate Walls
local dir = vector.zero()
if data[vi + 1] == c_everness_mineral_cave_stone then
dir.x = 1
end
if data[vi - 1] == c_everness_mineral_cave_stone then
dir.x = -1
end
if data[vi + area.zstride] == c_everness_mineral_cave_stone then
dir.z = 1
end
if data[vi - area.zstride] == c_everness_mineral_cave_stone then
dir.z = -1
end
local rand_wall_vine = wall_vines[rand:next(1, #wall_vines)]
data[vi] = rand_wall_vine
p2data[vi] = minetest.dir_to_wallmounted(dir)
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end
end
end
end
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--
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-- Spikes Floor
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--
for _, pos in ipairs(gennotify['decoration#' .. (d_everness_mineral_waters_under_volcanic_spike or '')] or {}) do
local idx = area:indexp(pos)
local idx_marker = idx + area.ystride
local place_on_node_name = minetest.get_name_from_content_id(data[idx])
if data[idx_marker] == c_everness_marker then
-- remove marker
data[idx_marker] = minetest.CONTENT_AIR
if table.indexof(volcanic_spike_place_on, place_on_node_name) ~= -1 then
local min_height = 3
local max_height = 8
local indexes = Everness.find_content_in_vm_area(
vector.new(pos.x, pos.y + 1, pos.z),
vector.new(pos.x, pos.y + max_height, pos.z),
{
minetest.CONTENT_AIR
},
data,
area
)
-- For smallest spike we need space above at least 3)
if #indexes > min_height then
local height = rand:next(min_height, #indexes)
local start_index = #volcanic_spike_map - height + 1
local count = 0
for i = start_index, #volcanic_spike_map do
data[idx_marker + area.ystride * count] = volcanic_spike_map[i]
count = count + 1
end
end
end
end
end
for _, pos in ipairs(gennotify['decoration#' .. (d_everness_mineral_waters_under_lava_stone_spike or '')] or {}) do
local idx = area:indexp(pos)
local idx_marker = idx + area.ystride
local place_on_node_name = minetest.get_name_from_content_id(data[idx])
if data[idx_marker] == c_everness_marker then
-- remove marker
data[idx_marker] = minetest.CONTENT_AIR
if table.indexof(lava_stone_spike_place_on, place_on_node_name) ~= -1 then
local min_height = 3
local max_height = 8
local indexes = Everness.find_content_in_vm_area(
vector.new(pos.x, pos.y + 1, pos.z),
vector.new(pos.x, pos.y + max_height, pos.z),
{
minetest.CONTENT_AIR
},
data,
area
)
-- For smallest spike we need space above at least 3)
if #indexes > min_height then
local height = rand:next(min_height, #indexes)
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local start_index = #cave_stone_spike_map - height + 1
local count = 0
for i = start_index, #cave_stone_spike_map do
data[idx_marker + area.ystride * count] = cave_stone_spike_map[i]
count = count + 1
end
end
end
end
end
--
-- Spikes Ceiling
--
for _, pos in ipairs(gennotify['decoration#' .. (d_everness_mineral_waters_under_volcanic_spike_ceiling or '')] or {}) do
local idx = area:indexp(pos)
local idx_marker = idx - area.ystride
local place_on_node_name = minetest.get_name_from_content_id(data[idx])
if data[idx_marker] == c_everness_marker then
-- remove marker
data[idx_marker] = minetest.CONTENT_AIR
-- data[idx_marker] = minetest.get_content_id('everness:pyrite_lantern')
if table.indexof(volcanic_spike_ceiling_place_on, place_on_node_name) ~= -1 then
local min_height = 3
local max_height = 16
local indexes = Everness.find_content_in_vm_area(
vector.new(pos.x, pos.y - max_height, pos.z),
vector.new(pos.x, pos.y - 1, pos.z),
{
minetest.CONTENT_AIR
},
data,
area
)
-- For smallest spike we need space above at least 3)
if #indexes > min_height then
local remainder = 0
local height = rand:next(min_height, #indexes)
if height > #lava_stone_spike_map then
remainder = height - #lava_stone_spike_map
height = height - remainder
end
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local start_index = #lava_stone_spike_map - height + 1
local count = 0
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if remainder > 0 then
for i = 1, remainder do
data[idx_marker - area.ystride * count] = c_everness_mineral_cave_cobblestone
count = count + 1
end
end
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for i = start_index, #lava_stone_spike_map do
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data[idx_marker - area.ystride * count] = lava_stone_spike_map[i]
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count = count + 1
end
end
end
end
end
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end,
-- read-only (but cant and should not manipulate) voxelmanip `data`
-- used for `place_schematic_on_vmanip` which will invalidate `data`
-- therefore we are doing it after we set the data
after_set_data = function(minp, maxp, vm, area, data, p2data, gennotify, rand, shared_args)
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--
-- Lava Trees
--
for _, pos in ipairs(gennotify['decoration#' .. (d_everness_mineral_waters_under_lava_tree 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 = minetest.get_node(marker_pos)
local place_on_node = minetest.get_node(pos)
if marker_node and marker_node.name == 'everness:marker' then
-- remove marker
minetest.remove_node(marker_pos)
if shared_args.rand_version ~= 1
and table.indexof(lava_tree_place_on, place_on_node.name) ~= -1
then
-- enough air to place structure ?
local positions = minetest.find_nodes_in_area(
vector.new(
pos.x - lava_tree_size_x,
pos.y,
pos.z - lava_tree_size_z
),
vector.new(
pos.x + lava_tree_size_x,
pos.y + lava_tree_size.y,
pos.z + lava_tree_size_z
),
{
'air',
'everness:lava_tree',
'everness:lava_tree_with_lava'
},
true
)
local air = positions.air or {}
local tree1 = positions['everness:lava_tree'] or {}
local tree2 = positions['everness:lava_tree_with_lava'] or {}
-- do not overlap another tree
if
#tree1 == 0
and #tree2 == 0
and #air > lava_tree_safe_volume
then
local replacements
if rand:next(0, 100) <= 25 then
replacements = {
['everness:lava_tree'] = 'everness:lava_tree_with_lava',
}
end
shared_args.lava_tree_positions = shared_args.lava_tree_positions or {}
table.insert(shared_args.lava_tree_positions, marker_pos)
minetest.place_schematic_on_vmanip(
vm,
marker_pos,
schem_everness_lava_tree,
'random',
replacements,
false,
'place_center_x, place_center_z'
)
end
end
end
end
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end,
-- Cannot read/write voxelmanip or its data
-- Used for direct manipulation of the world chunk nodes where the
-- definitions of nodes are available and node callback can be executed
-- or e.g. for `minetest.fix_light`
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after_write_to_map = function(shared_args, gennotify, rand)
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local lava_tree_positions = shared_args.lava_tree_positions or {}
for _, p in ipairs(lava_tree_positions) do
local grass_positions = minetest.find_nodes_in_area_under_air(
vector.subtract(p, { x = 3, y = 1, z = 3 }),
vector.add(p, { x = 3, y = 1, z = 3 }),
'everness:mineral_lava_stone_with_moss'
)
if #grass_positions > 1 then
for i = 1, rand:next(1, 3) do
local rand_p = grass_positions[rand:next(1, #grass_positions)]
if not vector.equals(p, rand_p) then
minetest.set_node(vector.new(rand_p.x, rand_p.y + 1, rand_p.z), { name = 'everness:mineral_cave_moss_grass' })
end
end
end
end
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end
})