everness/mapgen_after.lua

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--[[
Everness. Never ending discovery in Everness mapgen.
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Copyright (C) 2024 SaKeL
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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.
--]]
-- Get the content IDs for the nodes used.
local c_dirt_with_grass_1 = minetest.get_content_id('everness:dirt_with_grass_1')
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local c_dirt_with_rainforest_litter = minetest.get_content_id('default:dirt_with_rainforest_litter')
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local c_dirt_with_cursed_grass = minetest.get_content_id('everness:dirt_with_cursed_grass')
local c_dirt_with_crystal_grass = minetest.get_content_id('everness:dirt_with_crystal_grass')
local c_crystal_sand = minetest.get_content_id('everness:crystal_sand')
local c_dry_ocean_dirt = minetest.get_content_id('everness:dry_ocean_dirt')
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local c_dirt_with_snow = minetest.get_content_id('default:dirt_with_snow')
local c_dirt_with_coniferous_litter = minetest.get_content_id('default:dirt_with_coniferous_litter')
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local c_forsaken_desert_sand = minetest.get_content_id('everness:forsaken_desert_sand')
local c_forsaken_desert_chiseled_stone = minetest.get_content_id('everness:forsaken_desert_chiseled_stone')
local c_forsaken_desert_brick = minetest.get_content_id('everness:forsaken_desert_brick')
local c_forsaken_desert_engraved_stone = minetest.get_content_id('everness:forsaken_desert_engraved_stone')
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local c_frosted_snowblock = minetest.get_content_id('everness:frosted_snowblock')
local c_frosted_ice = minetest.get_content_id('everness:frosted_ice')
local c_everness_mineral_water_source = minetest.get_content_id('everness:mineral_water_source')
local c_everness_mineral_sand = minetest.get_content_id('everness:mineral_sand')
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-- Localize data buffer table outside the loop, to be re-used for all
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-- mapchunks, therefore minimising memory use.
local data = {}
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local chance = 15
local disp = 16
local water_level = tonumber(minetest.settings:get('water_level'))
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minetest.register_on_generated(function(minp, maxp, blockseed)
local rand = PcgRandom(blockseed)
-- Load the voxelmanip with the result of engine mapgen
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local vm, emin, emax = minetest.get_mapgen_object('voxelmanip')
-- 'area' is used later to get the voxelmanip indexes for positions
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local area = VoxelArea:new({ MinEdge = emin, MaxEdge = emax })
-- Get the content ID data from the voxelmanip in the form of a flat array.
-- Set the buffer parameter to use and reuse 'data' for this.
vm:get_data(data)
-- Side length of mapchunk
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local sidelength = maxp.x - minp.x + 1
local x_disp = rand:next(0, disp)
local z_disp = rand:next(0, disp)
if maxp.y >= water_level then
-- Above sea level
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for y = minp.y, maxp.y do
local vi = area:index(minp.x + sidelength / 2 + x_disp, y, minp.z + sidelength / 2 + z_disp)
if data[vi + area.ystride] == minetest.CONTENT_AIR
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and (
data[vi] == c_dirt_with_grass_1
or data[vi] == c_dirt_with_rainforest_litter
or data[vi] == c_dirt_with_cursed_grass
or data[vi] == c_dirt_with_crystal_grass
or data[vi] == c_crystal_sand
or data[vi] == c_forsaken_desert_sand
or data[vi] == c_dry_ocean_dirt
or data[vi] == c_dirt_with_snow
or data[vi] == c_dirt_with_coniferous_litter
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or data[vi] == c_frosted_snowblock
or data[vi] == c_frosted_ice
or data[vi] == c_everness_mineral_water_source
or data[vi] == c_everness_mineral_sand
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)
then
local s_pos = area:position(vi)
local biome_data = minetest.get_biome_data(s_pos)
if not biome_data then
return
end
local biome_name = minetest.get_biome_name(biome_data.biome)
if not biome_name then
return
end
if biome_name == 'everness_bamboo_forest' and rand:next(0, 100) < chance then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_japanese_shrine.mts'
--
-- Japanese Shrine
--
local schem_pos = vector.new(s_pos.x, s_pos.y, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Japanese Shrine was placed at ' .. schem_pos:to_string())
elseif biome_name == 'rainforest' and rand:next(0, 100) < chance then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_jungle_temple.mts'
--
-- Jungle Temple
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y - 3, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Jungle Temple was placed at ' .. schem_pos:to_string())
elseif biome_name == 'everness_cursed_lands' and rand:next(0, 100) < chance then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_haunted_house.mts'
--
-- Haunted House
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y - 1, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Haunted House was placed at ' .. schem_pos:to_string())
elseif biome_name == 'everness_crystal_forest' and rand:next(0, 100) < chance then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_quartz_temple.mts'
--
-- Quartz Temple
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Quartz Temple was placed at ' .. schem_pos:to_string())
elseif (biome_name == 'everness_forsaken_desert' or biome_name == 'everness_forsaken_desert_ocean')
and rand:next(0, 100) < chance
then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_forsaken_desert_temple.mts'
--
-- Forsaken Desert Temple
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Forsaken Desert Temple was placed at ' .. schem_pos:to_string())
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elseif (biome_name == 'coniferous_forest' or biome_name == 'taiga' or biome_name == 'MegaSpruceTaiga')
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and rand:next(0, 100) < 100
then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_giant_sequoia_tree.mts'
--
-- Giant Sequoia
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y, s_pos.z)
minetest.emerge_area(
vector.new(s_pos.x - 12, s_pos.y, s_pos.z - 12),
vector.new(s_pos.x + 12, s_pos.y + 75, s_pos.z + 12),
function(blockpos, action, calls_remaining, param)
Everness:emerge_area(blockpos, action, calls_remaining, param)
end,
{
callback = function()
local positions = minetest.find_nodes_in_area_under_air(
vector.new(s_pos.x - 6, s_pos.y - 1, s_pos.z - 6),
vector.new(s_pos.x + 6, s_pos.y + 1, s_pos.z + 6),
{
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'default:dirt_with_snow',
'default:dirt_with_coniferous_litter',
'default:snow'
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})
if #positions < 137 then
-- not enough space
return
end
minetest.place_schematic(
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Giant Sequoia was placed at ' .. schem_pos:to_string())
end
}
)
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elseif (biome_name == 'everness_frosted_icesheet' or biome_name == 'everness_frosted_icesheet_ocean')
and rand:next(0, 100) < chance
then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_frosted_icesheet_igloo.mts'
--
-- Igloo
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y - 8, s_pos.z)
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
'random',
nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Igloo was placed at ' .. schem_pos:to_string())
elseif biome_name == 'everness_mineral_waters'
and rand:next(0, 100) < chance
then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_mineral_waters_tower.mts'
--
-- Mineral Waters Tower
--
local size = { x = 7, y = 16, z = 9 }
local size_x = math.round(size.x / 2)
local size_z = math.round(size.z / 2)
-- add Y displacement
local schem_pos = vector.new(s_pos)
-- find floor big enough
local positions = minetest.find_nodes_in_area_under_air(
vector.new(s_pos.x - size_x, s_pos.y - 1, s_pos.z - size_z),
vector.new(s_pos.x + size_x, s_pos.y + 1, s_pos.z + size_z),
{
'everness:mineral_sand',
'everness:mineral_water_source'
})
if #positions < size.x * size.z then
-- not enough space
return
end
-- enough air to place structure ?
local air_positions = minetest.find_nodes_in_area(
vector.new(s_pos.x - size_x, s_pos.y, s_pos.z - size_z),
vector.new(s_pos.x + size_x, s_pos.y + size.y, s_pos.z + size_z),
'air', true)
if air_positions.air and #air_positions.air > (size.x * size.y * size.z) / 2 then
minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
'random',
nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Mineral Waters Tower was placed at ' .. schem_pos:to_string())
end
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end
end
end
vm:write_to_map(true)
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minetest.fix_light(minp, maxp)
else
-- Under sea level
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for y = minp.y, maxp.y do
local vi = area:index(minp.x + sidelength / 2 + x_disp, y, minp.z + sidelength / 2 + z_disp)
if data[vi + area.ystride] == minetest.CONTENT_AIR
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and (
data[vi] == c_dirt_with_grass_1
or data[vi] == c_forsaken_desert_sand
or data[vi] == c_forsaken_desert_chiseled_stone
or data[vi] == c_forsaken_desert_brick
or data[vi] == c_forsaken_desert_engraved_stone
)
then
local s_pos = area:position(vi)
local biome_data = minetest.get_biome_data(s_pos)
if not biome_data then
return
end
local biome_name = minetest.get_biome_name(biome_data.biome)
if not biome_name then
return
end
if biome_name == 'everness_forsaken_desert_under' and rand:next(0, 100) < chance then
local schem = minetest.get_modpath('everness') .. '/schematics/everness_forsaken_desert_temple_2.mts'
--
-- Forsaken Desert Temple 2
--
-- add Y displacement
local schem_pos = vector.new(s_pos.x, s_pos.y, s_pos.z)
-- find floor big enough
local positions = minetest.find_nodes_in_area_under_air(
vector.new(s_pos.x - 7, s_pos.y - 1, s_pos.z - 7),
vector.new(s_pos.x + 7, s_pos.y + 1, s_pos.z + 7),
{
'everness:forsaken_desert_sand',
'everness:forsaken_desert_chiseled_stone',
'everness:forsaken_desert_brick',
'everness:forsaken_desert_engraved_stone',
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'default:stone',
'default:sand',
'default:gravel',
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'default:stone_with_coal',
'default:stone_with_iron',
'default:stone_with_tin',
'default:stone_with_gold',
'default:stone_with_mese',
'default:stone_with_diamond',
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'everness:cave_barrel_cactus',
'everness:venus_trap',
'everness:illumi_root',
})
if #positions < 49 then
-- not enough space
return
end
-- enough air to place structure ?
local air_positions = minetest.find_nodes_in_area(
vector.new(s_pos.x - 7, s_pos.y, s_pos.z - 7),
vector.new(s_pos.x + 7, s_pos.y + 17, s_pos.z + 7),
'air', true)
if air_positions.air and #air_positions.air > (16 * 15 * 16) / 2 then
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minetest.place_schematic_on_vmanip(
vm,
schem_pos,
schem,
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'random',
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nil,
true,
'place_center_x, place_center_z'
)
minetest.log('action', '[Everness] Forsaken Desert Temple 2 was placed at ' .. schem_pos:to_string())
end
end
end
end
vm:write_to_map(true)
minetest.fix_light(minp, maxp)
end
end)