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Mineclonia/mods/mcl_core/mapgen.lua

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-- mods/default/mapgen.lua
--
-- Aliases for map generator outputs
--
minetest.register_alias("mapgen_air", "air")
minetest.register_alias("mapgen_stone", "mcl_core:stone")
minetest.register_alias("mapgen_tree", "mcl_core:tree")
minetest.register_alias("mapgen_leaves", "mcl_core:leaves")
minetest.register_alias("mapgen_jungletree", "mcl_core:jungletree")
minetest.register_alias("mapgen_jungleleaves", "mcl_core:jungleleaves")
minetest.register_alias("mapgen_pine_tree", "mcl_core:darktree")
minetest.register_alias("mapgen_pine_needles", "mcl_core:darkleaves")
minetest.register_alias("mapgen_apple", "mcl_core:leaves")
minetest.register_alias("mapgen_water_source", "mcl_core:water_source")
minetest.register_alias("mapgen_dirt", "mcl_core:dirt")
minetest.register_alias("mapgen_dirt_with_grass", "mcl_core:dirt_with_grass")
minetest.register_alias("mapgen_dirt_with_snow", "mcl_core:dirt_with_snow")
minetest.register_alias("mapgen_sand", "mcl_core:sand")
minetest.register_alias("mapgen_gravel", "mcl_core:gravel")
minetest.register_alias("mapgen_clay", "mcl_core:clay")
minetest.register_alias("mapgen_lava_source", "mcl_core:lava_source")
minetest.register_alias("mapgen_cobble", "mcl_core:cobble")
minetest.register_alias("mapgen_mossycobble", "mcl_core:mossycobble")
minetest.register_alias("mapgen_junglegrass", "mcl_core:junglegrass")
minetest.register_alias("mapgen_stone_with_coal", "mcl_core:stone_with_coal")
minetest.register_alias("mapgen_stone_with_iron", "mcl_core:stone_with_iron")
minetest.register_alias("mapgen_desert_sand", "mcl_core:sand")
minetest.register_alias("mapgen_desert_stone", "mcl_core:sandstone")
minetest.register_alias("mapgen_sandstone", "mcl_core:sandstone")
minetest.register_alias("mapgen_river_water_source", "mcl_core:water_source")
minetest.register_alias("mapgen_snow", "mcl_core:snow")
minetest.register_alias("mapgen_snowblock", "mcl_core:snowblock")
minetest.register_alias("mapgen_ice", "mcl_core:ice")
minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
minetest.register_alias("mapgen_sandstonebrick", "mcl_core:sandstonesmooth")
minetest.register_alias("mapgen_stair_sandstonebrick", "stairs:stair_sandstone")
--
-- Ore generation
--
-- Gravel
minetest.register_ore({
ore_type = "blob",
ore = "mcl_core:gravel",
wherein = {"mcl_core:stone"},
clust_scarcity = 14*14*14,
clust_num_ores = 33,
clust_size = 5,
y_min = -90,
y_max = 90,
})
--
-- Coal
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_coal",
wherein = "mcl_core:stone",
clust_scarcity = 500,
clust_num_ores = 5,
clust_size = 3,
y_min = 13,
y_max = 31000,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_coal",
wherein = "mcl_core:stone",
clust_scarcity = 500,
clust_num_ores = 8,
clust_size = 3,
y_min = 12,
y_max = -12,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_coal",
wherein = "mcl_core:stone",
clust_scarcity = 1000,
clust_num_ores = 6,
clust_size = 3,
y_min = -11,
y_max = 64,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_coal",
wherein = "mcl_core:stone",
clust_scarcity = 5000,
clust_num_ores = 4,
clust_size = 2,
y_min = 65,
y_max = 67,
})
--
-- Iron
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_iron",
wherein = "mcl_core:stone",
clust_scarcity = 830,
clust_num_ores = 5,
clust_size = 3,
y_min = -127,
y_max = -10,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_iron",
wherein = "mcl_core:stone",
clust_scarcity = 1660,
clust_num_ores = 3,
clust_size = 2,
y_min = -9,
y_max = 1,
})
--
-- Gold
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_gold",
wherein = "mcl_core:stone",
clust_scarcity = 5000,
clust_num_ores = 5,
clust_size = 3,
y_min = -59,
y_max = -35,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_gold",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 3,
clust_size = 2,
y_min = -35,
y_max = -33,
})
--
-- Diamond
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_diamond",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 4,
clust_size = 3,
y_min = -59,
y_max = -48,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_diamond",
wherein = "mcl_core:stone",
clust_scarcity = 5000,
clust_num_ores = 2,
clust_size = 2,
y_min = -59,
y_max = -48,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_diamond",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 8,
clust_size = 3,
y_min = -55,
y_max = -52,
})
--
-- Redstone
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_redstone",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 5,
clust_size = 3,
y_min = -59,
y_max = -48,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_redstone",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 10,
clust_size = 4,
y_min = -59,
y_max = -48,
})
--
-- Emerald
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_emerald",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 1,
clust_size = 2,
y_min = -59,
y_max = -35,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_emerald",
wherein = "mcl_core:stone",
clust_scarcity = 50000,
clust_num_ores = 3,
clust_size = 2,
y_min = -59,
y_max = -35,
})
--
-- Lapis Lazuli
--
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_lapis",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 7,
clust_size = 4,
y_min = -50,
y_max = -46,
})
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:stone_with_lapis",
wherein = "mcl_core:stone",
clust_scarcity = 10000,
clust_num_ores = 5,
clust_size = 4,
y_min = -59,
y_max = -50,
})
function mcl_core.generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, chunk_size, ore_per_chunk, y_min, y_max)
minetest.log('action', "WARNING: mcl_core.generate_ore is deprecated")
if maxp.y < y_min or minp.y > y_max then
return
end
y_min = math.max(minp.y, y_min)
y_max = math.min(maxp.y, y_max)
if chunk_size >= y_max - y_min + 1 then
return
end
local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
local pr = PseudoRandom(seed)
local num_chunks = math.floor(chunks_per_volume * volume)
local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
--print("generate_ore num_chunks: "..dump(num_chunks))
for i=1,num_chunks do
local y0 = pr:next(y_min, y_max-chunk_size+1)
if y0 >= y_min and y0 <= y_max then
local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
local p0 = {x=x0, y=y0, z=z0}
for x1=0,chunk_size-1 do
for y1=0,chunk_size-1 do
for z1=0,chunk_size-1 do
if pr:next(1,inverse_chance) == 1 then
local x2 = x0+x1
local y2 = y0+y1
local z2 = z0+z1
local p2 = {x=x2, y=y2, z=z2}
if minetest.get_node(p2).name == wherein then
minetest.set_node(p2, {name=name})
end
end
end
end
end
end
end
--print("generate_ore done")
end
function mcl_core.make_reeds(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
local nn = minetest.get_node(p).name
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
minetest.set_node(p, {name="mcl_core:reeds"})
else
return
end
end
end
function mcl_core.make_cactus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
local nn = minetest.get_node(p).name
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
minetest.set_node(p, {name="mcl_core:cactus"})
else
return
end
end
end
minetest.register_on_generated(function(minp, maxp, seed)
if maxp.y >= 2 and minp.y <= 0 then
-- Generate clay
-- Assume X and Z lengths are equal
local divlen = 4
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0+1,divs-1-1 do
for divz=0+1,divs-1-1 do
local cx = minp.x + math.floor((divx+0.5)*divlen)
local cz = minp.z + math.floor((divz+0.5)*divlen)
if minetest.get_node({x=cx,y=1,z=cz}).name == "mcl_core:water_source" and
minetest.get_node({x=cx,y=0,z=cz}).name == "mcl_core:sand" then
local is_shallow = true
local num_water_around = 0
if minetest.get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "mcl_core:water_source" then
num_water_around = num_water_around + 1 end
if minetest.get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "mcl_core:water_source" then
num_water_around = num_water_around + 1 end
if minetest.get_node({x=cx+0,y=1,z=cz-divlen*2}).name == "mcl_core:water_source" then
num_water_around = num_water_around + 1 end
if minetest.get_node({x=cx+0,y=1,z=cz+divlen*2}).name == "mcl_core:water_source" then
num_water_around = num_water_around + 1 end
if num_water_around >= 2 then
is_shallow = false
end
if is_shallow then
for x1=-divlen,divlen do
for z1=-divlen,divlen do
if minetest.get_node({x=cx+x1,y=0,z=cz+z1}).name == "mcl_core:sand" or minetest.get_node({x=cx+x1,y=0,z=cz+z1}).name == "mcl_core:sandstone" then
minetest.set_node({x=cx+x1,y=0,z=cz+z1}, {name="mcl_core:clay"})
end
end
end
end
end
end
end
-- Generate reeds
local perlin1 = minetest.get_perlin(354, 3, 0.7, 100)
-- Assume X and Z lengths are equal
local divlen = 8
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine reeds amount from perlin noise
local reeds_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 45 - 20)
-- Find random positions for reeds based on this random
local pr = PseudoRandom(seed+1)
for i=0,reeds_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
if minetest.get_node({x=x,y=1,z=z}).name == "mcl_core:dirt_with_grass" and
minetest.find_node_near({x=x,y=1,z=z}, 1, "mcl_core:water_source") then
mcl_core.make_reeds({x=x,y=2,z=z}, pr:next(2, 4))
end
local p = {x=x,y=1,z=z}
if minetest.get_node(p).name == "mcl_core:sand" then
if math.random(0,1000) == 1 then -- 0,12000
-- TODO: Re-enable random_struct
--random_struct.call_struct(p,2)
end
end
end
end
end
-- Generate cactuses
local perlin1 = minetest.get_perlin(230, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine cactus amount from perlin noise
local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 6 - 3)
-- Find random positions for cactus based on this random
local pr = PseudoRandom(seed+1)
for i=0,cactus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
-- If sand, make cactus
if ground_y and minetest.get_node({x=x,y=ground_y,z=z}).name == "mcl_core:sand" then
mcl_core.make_cactus({x=x,y=ground_y+1,z=z}, pr:next(3, 4))
end
end
end
end
-- Generate grass
local perlin1 = minetest.get_perlin(329, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 5
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine grass amount from perlin noise
local grass_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 9)
-- Find random positions for grass based on this random
local pr = PseudoRandom(seed+1)
for i=0,grass_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
if ground_y then
local p = {x=x,y=ground_y+1,z=z}
local nn = minetest.get_node(p).name
-- Check if the node can be replaced
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
nn = minetest.get_node({x=x,y=ground_y,z=z}).name
-- If sand, add dry shrub
if nn == "mcl_core:sand" then
minetest.set_node(p,{name="mcl_core:dry_shrub"})
-- If dirt with grass, add grass
elseif nn == "mcl_core:dirt_with_grass" then
minetest.set_node(p,{name="mcl_core:grass"})
if math.random(0,12000) == 1 then
-- TODO: Re-enable random_struct
--random_struct.call_struct(p,1)
end
end
end
end
end
end
end
end
-- Generate nyan cats
--generate_nyancats(seed, minp, maxp)
end)
local function replace(old, new, min, max)
minetest.register_ore({
ore_type = "scatter",
ore = new,
wherein = old,
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 1,
y_min = min,
y_max = max,
})
end
replace("air", "mcl_core:bedrock", -90, -80)
replace("air", "mcl_core:lava_source", -80, -70)
replace("mcl_core:stone", "mcl_core:bedrock", -90, -80)
replace("mcl_core:gravel", "mcl_core:bedrock", -90, -80)
replace("mcl_core:dirt", "mcl_core:bedrock", -90, -80)
replace("mcl_core:sand", "mcl_core:bedrock", -90, -80)
replace("mcl_core:cobble", "mcl_core:bedrock", -90, -80)
replace("mcl_core:mossycobble", "mcl_core:bedrock", -90, -80)
replace("stairs:stair_cobble", "mcl_core:bedrock", -90, -80)
replace("mcl_core:lava_source", "mcl_core:bedrock", -90, -80)
replace("mcl_core:lava_flowing", "mcl_core:bedrock", -90, -80)
replace("mcl_core:water_source", "mcl_core:bedrock", -90, -80)
replace("mcl_core:water_flowing", "mcl_core:bedrock", -90, -80)
local function bedrock(old)
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_core:bedrock",
wherein = old,
clust_scarcity = 5,
clust_num_ores = 3,
clust_size = 2,
y_min = -64,
y_max = -60,
})
end
bedrock("air")
bedrock("mcl_core:stone")
bedrock("mcl_core:gravel")
bedrock("mcl_core:dirt")
bedrock("mcl_core:sand")
bedrock("mcl_core:cobble")
bedrock("mcl_core:mossycobble")
bedrock("stairs:stair_cobble")
bedrock("mcl_core:lava_source")
bedrock("mcl_core:lava_flowing")
bedrock("mcl_core:water_source")
bedrock("mcl_core:water_flowing")
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