mirror of
https://github.com/minetest-mods/magma_conduits.git
synced 2024-12-21 04:55:40 +01:00
126 lines
3.8 KiB
Lua
126 lines
3.8 KiB
Lua
magma_conduits = {}
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--grab a shorthand for the filepath of the mod
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local modpath = minetest.get_modpath(minetest.get_current_modname())
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--load companion lua files
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dofile(modpath.."/config.lua")
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if magma_conduits.config.remove_default_lava then
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minetest.register_alias_force("mapgen_lava_source", "air") -- veins of lava are far more realistic
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end
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minetest.register_ore({
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ore_type = "vein",
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ore = "default:lava_source",
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wherein = {
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"default:stone",
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"default:desert_stone",
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"default:sandstone",
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"default:sand",
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"default:desert_sand",
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"default:silver_sand",
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"default:gravel",
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"default:stone_with_coal",
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"default:stone_with_iron",
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"default:stone_with_copper",
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"default:stone_with_gold",
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"default:stone_with_diamond",
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"default:dirt",
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"default:dirt_with_grass",
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"default:dirt_with_dry_grass",
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"default:dirt_with_snow",
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},
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column_height_min = 2,
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column_height_max = 6,
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height_min = magma_conduits.config.lower_limit,
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height_max = magma_conduits.config.upper_limit,
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noise_threshold = 0.9,
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noise_params = {
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offset = 0,
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scale = 3,
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spread = {x=magma_conduits.config.spread, y=magma_conduits.config.spread*2, z=magma_conduits.config.spread},
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seed = 25391,
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octaves = 4,
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persist = 0.5,
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flags = "eased",
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},
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random_factor = 0,
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})
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-------------------------------------------------------------------------------------------------
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-- Ameliorate lava floods on the surface world by removing lava that's poised to spill
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if not magma_conduits.config.ameliorate_floods then return end
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local c_air = minetest.get_content_id("air")
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local c_lava = minetest.get_content_id("default:lava_source")
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local water_level = tonumber(minetest.get_mapgen_setting("water_level"))
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local is_adjacent_to_air = function(area, data, pos)
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return (data[area:index(pos.x+1, pos.y, pos.z)] == c_air
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or data[area:index(pos.x-1, pos.y, pos.z)] == c_air
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or data[area:index(pos.x, pos.y, pos.z+1)] == c_air
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or data[area:index(pos.x, pos.y, pos.z-1)] == c_air
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or data[area:index(pos.x, pos.y-1, pos.z)] == c_air)
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end
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magma_conduits.remove_unsupported_lava = function(area, data, vi)
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if data[vi] == c_lava then
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local pos = area:position(vi)
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if is_adjacent_to_air(area, data, pos) then
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data[vi] = c_air
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magma_conduits.remove_unsupported_lava(area, data, area:index(pos.x+1, pos.y, pos.z))
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magma_conduits.remove_unsupported_lava(area, data, area:index(pos.x-1, pos.y, pos.z))
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magma_conduits.remove_unsupported_lava(area, data, area:index(pos.x, pos.y, pos.z+1))
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magma_conduits.remove_unsupported_lava(area, data, area:index(pos.x, pos.y, pos.z-1))
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magma_conduits.remove_unsupported_lava(area, data, area:index(pos.x, pos.y+1, pos.z))
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end
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end
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end
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local data = {}
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minetest.register_on_generated(function(minp, maxp, seed)
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--if too far from water level, abort. Caverns are on their own.
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if minp.y > 512 or maxp.y < water_level then
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return
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end
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--easy reference to commonly used values
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local t_start = os.clock()
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local x_max = maxp.x
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local y_max = maxp.y
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local z_max = maxp.z
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local x_min = minp.x
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local y_min = minp.y
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local z_min = minp.z
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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vm:get_data(data)
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for z = z_min, z_max do -- for each xy plane progressing northwards
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--structure loop, hollows out the cavern
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for y = y_min, y_max do -- for each x row progressing upwards
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if y > water_level then
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local vi = area:index(x_min, y, z) --current node index
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for x = x_min, x_max do -- for each node do
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magma_conduits.remove_unsupported_lava(area, data, vi)
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vi = vi + 1
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end
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end
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end
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end
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--send data back to voxelmanip
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vm:set_data(data)
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--calc lighting
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vm:set_lighting({day = 0, night = 0})
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vm:calc_lighting()
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vm:update_liquids()
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--write it to world
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vm:write_to_map()
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end) |