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gravelsieve distribution tweaks
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obl3pplifp
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778ec375ed
commit
24f7fdaebc
@ -29,7 +29,7 @@
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2017-07-08 V1.01 * extended for moreores
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2017-07-09 V1.02 * Cobblestone bugfix (NathanSalapat)
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* ore_probability is now global accessable (bell07)
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2017-08-29 V1.03 * Fix syntax listring (Jat15)
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2017-08-29 V1.03 * Fix syntax listring (Jat15)
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2017-09-08 V1.04 * Adaption to Tubelib
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2017-11-03 V1.05 * Adaption to Tubelib v0.06
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2018-01-01 V1.06 * Hopper support added
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@ -44,7 +44,16 @@ gravelsieve = {
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dofile(minetest.get_modpath("gravelsieve") .. "/hammer.lua")
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gravelsieve.ore_rarity = tonumber(minetest.setting_get("gravelsieve_ore_rarity")) or 1
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local settings_get
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if minetest.setting_get then
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settings_get = minetest.setting_get
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else
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settings_get = function(...) endminetest.settings:get(...) end
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end
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gravelsieve.ore_rarity = tonumber(settings_get("gravelsieve_ore_rarity")) or 1.16
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gravelsieve.ore_max_elevation = tonumber(settings_get("gravelsieve_ore_max_elevation")) or 0
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gravelsieve.ore_min_elevation = tonumber(settings_get("gravelsieve_ore_min_elevation")) or -30912
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local y_spread = math.max(1 + gravelsieve.ore_max_elevation - gravelsieve.ore_min_elevation, 1)
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-- Increase the probability over the natural occurrence
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local PROBABILITY_FACTOR = 3
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@ -71,6 +80,17 @@ if minetest.get_modpath("pipeworks") and pipeworks ~= nil then
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pipeworks_after_place = pipeworks.after_place
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end
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local function harmonic_sum(a, b)
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return 1 / ((1 / a) + (1 / b))
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end
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local function calculate_probability(item)
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local ymax = math.min(item.y_max, gravelsieve.ore_max_elevation)
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local ymin = math.max(item.y_min, gravelsieve.ore_min_elevation)
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return (gravelsieve.ore_rarity / PROBABILITY_FACTOR) *
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item.clust_scarcity / (item.clust_num_ores * ((ymax - ymin) / y_spread))
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end
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-- collect all registered ores and calculate the probability
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local function add_ores()
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for _,item in pairs(minetest.registered_ores) do
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@ -81,28 +101,28 @@ local function add_ores()
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and drop ~= ""
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and item.ore_type == "scatter"
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and item.wherein == "default:stone"
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and item.clust_scarcity ~= nil and item.clust_scarcity > 0
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and item.clust_num_ores ~= nil and item.clust_num_ores > 0
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and item.clust_scarcity ~= nil and item.clust_scarcity > 0
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and item.clust_num_ores ~= nil and item.clust_num_ores > 0
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and item.y_max ~= nil and item.y_min ~= nil then
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local probability = (gravelsieve.ore_rarity / PROBABILITY_FACTOR) * item.clust_scarcity /
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(item.clust_num_ores * ((item.y_max - item.y_min) / 65535))
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if gravelsieve.ore_probability[drop] == nil then
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gravelsieve.ore_probability[drop] = probability
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else
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-- harmonic sum
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gravelsieve.ore_probability[drop] = 1.0 / ((1.0 / gravelsieve.ore_probability[drop]) +
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(1.0 / probability))
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local probability = calculate_probability(item)
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if probability > 0 then
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local cur_probability = gravelsieve.ore_probability[drop]
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if cur_probability then
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gravelsieve.ore_probability[drop] = harmonic_sum(cur_probability, probability)
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else
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gravelsieve.ore_probability[drop] = probability
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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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local overall_probability = 0.0
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for name,probability in pairs(gravelsieve.ore_probability) do
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minetest.log("info", string.format("[gravelsieve] %-32s %u", name, probability))
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minetest.log("info", ("[gravelsieve] %-32s %.02f"):format(name, probability))
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overall_probability = overall_probability + 1.0/probability
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end
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minetest.log("info", string.format("[gravelsieve] Overall probability %g", overall_probability))
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end
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minetest.log("info", ("[gravelsieve] Overall probability %f"):format(overall_probability))
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end
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minetest.after(1, add_ores)
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@ -283,7 +303,7 @@ for idx = 0,4 do
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"gravelsieve_auto_sieve.png",
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"gravelsieve_auto_sieve.png",
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}
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-- Pipeworks support
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tube_info = {
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insert_object = function(pos, node, stack, direction)
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@ -320,9 +340,9 @@ for idx = 0,4 do
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tiles = tiles_data,
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drawtype = "nodebox",
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drop = node_name,
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tube = tube_info, -- NEW
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node_box = {
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type = "fixed",
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fixed = nodebox_data,
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@ -344,18 +364,18 @@ for idx = 0,4 do
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inv:set_size('src', 1)
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inv:set_size('dst', 16)
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end,
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-- Pipeworks support
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after_dig_node = pipeworks_after_dig,
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", "Gravel Sieve")
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-- Pipeworks support
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pipeworks_after_place(pos, placer)
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end,
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on_metadata_inventory_move = function(pos)
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if automatic == 0 then
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local meta = minetest.get_meta(pos)
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@ -460,12 +480,12 @@ if minetest.global_exists("tubelib") then
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inv:set_size('src', 1)
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inv:set_size('dst', 16)
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end,
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", "Gravel Sieve")
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end,
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on_dig = function(pos, node, puncher, pointed_thing)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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@ -481,8 +501,8 @@ if minetest.global_exists("tubelib") then
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is_ground_content = false,
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groups = {choppy=2, cracky=1, not_in_creative_inventory=1},
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})
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tubelib.register_node("gravelsieve:auto_sieve3",
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tubelib.register_node("gravelsieve:auto_sieve3",
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{
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"gravelsieve:auto_sieve0",
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"gravelsieve:auto_sieve1",
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@ -518,7 +538,7 @@ if minetest.global_exists("tubelib") then
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minetest.get_node_timer(pos):start(1.0)
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return true
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end,
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})
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})
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end
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minetest.register_node("gravelsieve:sieved_gravel", {
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@ -573,19 +593,19 @@ minetest.register_alias("gravelsieve:auto_sieve", "gravelsieve:auto_sieve3")
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-- adaption to hopper
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if minetest.get_modpath("hopper") and hopper ~= nil and hopper.add_container ~= nil then
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hopper:add_container({
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{"bottom", "gravelsieve:auto_sieve0", "src"},
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{"bottom", "gravelsieve:auto_sieve0", "src"},
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{"top", "gravelsieve:auto_sieve0", "dst"},
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{"side", "gravelsieve:auto_sieve0", "src"},
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{"bottom", "gravelsieve:auto_sieve1", "src"},
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{"bottom", "gravelsieve:auto_sieve1", "src"},
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{"top", "gravelsieve:auto_sieve1", "dst"},
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{"side", "gravelsieve:auto_sieve1", "src"},
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{"bottom", "gravelsieve:auto_sieve2", "src"},
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{"bottom", "gravelsieve:auto_sieve2", "src"},
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{"top", "gravelsieve:auto_sieve2", "dst"},
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{"side", "gravelsieve:auto_sieve2", "src"},
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{"bottom", "gravelsieve:auto_sieve3", "src"},
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{"bottom", "gravelsieve:auto_sieve3", "src"},
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{"top", "gravelsieve:auto_sieve3", "dst"},
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{"side", "gravelsieve:auto_sieve3", "src"},
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})
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@ -593,7 +613,7 @@ end
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-- adaption to Circular Saw
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if minetest.get_modpath("moreblocks") then
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stairsplus:register_all("gravelsieve", "compressed_gravel", "gravelsieve:compressed_gravel", {
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description="Compressed Gravel",
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groups={cracky=2, crumbly=2, choppy=2, not_in_creative_inventory=1},
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@ -1 +1,4 @@
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name=gravelsieve
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description=This mod includes a hammer to produce gravel from Cobblestone and a sieve to sift gravel to find ores.
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depends=default
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optional_depends=moreblocks,tubelib,hopper,pipeworks
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@ -1,5 +1,7 @@
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# Rarity factor to find ores when sieving with the Gravel Sieve
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# 1.0 is according to the mapgen generator
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# 1.0 is according to the mapgen generator
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# 2.0 means half as many ores as result
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# 0.5 means twice as many ores as result
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gravelsieve_ore_rarity (Rarity factor to find ores) float 1.5
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gravelsieve_ore_rarity (Rarity factor to find ores) float 1.16
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gravelsieve_ore_max_elevation (Maximum elevation considered when calculating ore distribution) int 0 -30912 30927
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gravelsieve_ore_min_elevation (Minimum elevation considered when calculating ore distribution) int -30912 -30912 30927
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