VoxeLibre/mods/MAPGEN/mcl_terrain_features/init.lua

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local adjacents = {
vector.new(1,0,0),
vector.new(1,0,1),
vector.new(1,0,-1),
vector.new(-1,0,0),
vector.new(-1,0,1),
vector.new(-1,0,-1),
vector.new(0,0,1),
vector.new(0,0,-1),
vector.new(0,-1,0)
}
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local plane_adjacents = {
vector.new(1,0,0),
vector.new(-1,0,0),
vector.new(0,0,1),
vector.new(0,0,-1),
}
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local function set_node_no_bedrock(pos,node)
local n = minetest.get_node(pos)
if n.name == "mcl_core:bedrock" then return end
return minetest.set_node(pos,node)
end
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local function airtower(pos,tbl,h)
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for i=1,h do
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table.insert(tbl,vector.offset(pos,0,i,0))
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end
end
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local function makelake(pos,size,liquid,placein,border,pr)
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local node_under = minetest.get_node(vector.offset(pos,0,-1,0))
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local p1 = vector.offset(pos,-size,-1,-size)
local p2 = vector.offset(pos,size,-1,size)
minetest.emerge_area(p1, p2, function(blockpos, action, calls_remaining, param)
if calls_remaining ~= 0 then return end
local nn = minetest.find_nodes_in_area(p1,p2,placein)
table.sort(nn,function(a, b)
return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
end)
if not nn[1] then return end
local y = pos.y - pr:next(1,2)
local lq = {}
local air = {}
local r = pr:next(1,#nn)
if r > #nn then return end
for i=1,r do
if nn[i].y == y then
airtower(nn[i],air,55)
table.insert(lq,nn[i])
end
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end
minetest.bulk_set_node(lq,{name=liquid})
minetest.bulk_set_node(air,{name="air"})
air = {}
local br = {}
for k,v in pairs(lq) do
for kk,vv in pairs(adjacents) do
local pp = vector.add(v,vv)
local an = minetest.get_node(pp)
local un = minetest.get_node(vector.offset(pp,0,1,0))
if not border then
if minetest.get_item_group(an.name,"solid") > 0 then
border = an.name
elseif minetest.get_item_group(minetest.get_node(nn[1]).name,"solid") > 0 then
border = minetest.get_node_or_nil(nn[1]).name
else
border = "mcl_core:stone"
end
if border == nil or border == "mcl_core:dirt" then border = "mcl_core:dirt_with_grass" end
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end
if an.name ~= liquid then
table.insert(br,pp)
if un.name ~= liquid then
airtower(pp,air,55)
end
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end
end
end
minetest.bulk_set_node(br,{name=border})
minetest.bulk_set_node(air,{name="air"})
return true
end)
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return true
end
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local mushrooms = {"mcl_mushrooms:mushroom_brown","mcl_mushrooms:mushroom_red"}
local function get_fallen_tree_schematic(pos,pr)
local tree = minetest.find_node_near(pos,15,{"group:tree"})
if not tree then return end
tree = minetest.get_node(tree).name
local maxlen = 8
local minlen = 2
local vprob = 120
local mprob = 160
local len = pr:next(minlen,maxlen)
local schem = {
size = {x = len + 2, y = 2, z = 3},
data = {
{name = "air", prob=0},
{name = "air", prob=0},
}
}
for i = 1,len do
table.insert(schem.data,{name = "mcl_core:vine",param2=4, prob=vprob})
end
table.insert(schem.data,{name = "air", prob=0})
table.insert(schem.data,{name = "air", prob=0})
for i = 1,len do
table.insert(schem.data,{name = "air", prob=0})
end
table.insert(schem.data,{name = tree, param2 = 0})
table.insert(schem.data,{name = "air", prob=0})
for i = 1,len do
table.insert(schem.data,{name = tree, param2 = 12})
end
table.insert(schem.data,{name = "air", prob=0})
table.insert(schem.data,{name = "air", prob=0})
for i = 1,len do
table.insert(schem.data,{name = mushrooms[pr:next(1,#mushrooms)], param2 = 12, prob=mprob})
end
table.insert(schem.data,{name = "air", prob=0})
table.insert(schem.data,{name = "air", prob=0})
for i = 1,len do
table.insert(schem.data,{name = "mcl_core:vine",param2=5, prob=vprob})
end
table.insert(schem.data,{name = "air", prob=0})
table.insert(schem.data,{name = "air", prob=0})
for i = 1,len do
table.insert(schem.data,{name = "air", prob=0})
end
return schem
end
mcl_structures.register_structure("fallen_tree",{
place_on = {"group:grass_block"},
terrain_feature = true,
noise_params = {
offset = 0.00018,
scale = 0.01011,
spread = {x = 250, y = 250, z = 250},
seed = 24533,
octaves = 3,
persist = 0.66
},
flags = "place_center_x, place_center_z",
sidelen = 18,
solid_ground = true,
y_max = mcl_vars.mg_overworld_max,
y_min = minetest.get_mapgen_setting("water_level"),
on_place = function(pos,def,pr)
local air_p1 = vector.offset(pos,-def.sidelen/2,1,-def.sidelen/2)
local air_p2 = vector.offset(pos,def.sidelen/2,1,def.sidelen/2)
local air = minetest.find_nodes_in_area(air_p1,air_p2,{"air"})
if #air < ( def.sidelen * def.sidelen ) / 2 then
return false
end
return true
end,
place_func = function(pos,def,pr)
local schem=get_fallen_tree_schematic(pos,pr)
if not schem then return end
return minetest.place_schematic(pos,schem,"random")
end
})
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mcl_structures.register_structure("lavapool",{
place_on = {"group:sand", "group:dirt", "group:stone"},
terrain_feature = true,
noise_params = {
offset = 0,
scale = 0.0000022,
spread = {x = 250, y = 250, z = 250},
seed = 78375213,
octaves = 3,
persist = 0.001,
flags = "absvalue",
},
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flags = "place_center_x, place_center_z, force_placement",
y_max = mcl_vars.mg_overworld_max,
y_min = minetest.get_mapgen_setting("water_level"),
place_func = function(pos,def,pr)
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return makelake(pos,5,"mcl_core:lava_source",{"group:material_stone", "group:sand", "group:dirt"},"mcl_core:stone",pr)
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end
})
mcl_structures.register_structure("water_lake",{
place_on = {"group:dirt","group:stone"},
terrain_feature = true,
noise_params = {
offset = 0,
scale = 0.000032,
spread = {x = 250, y = 250, z = 250},
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seed = 756641353,
octaves = 3,
persist = 0.001,
flags = "absvalue",
},
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flags = "place_center_x, place_center_z, force_placement",
y_max = mcl_vars.mg_overworld_max,
y_min = minetest.get_mapgen_setting("water_level"),
place_func = function(pos,def,pr)
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return makelake(pos,5,"mcl_core:water_source",{"group:material_stone", "group:sand", "group:dirt","group:grass_block"},nil,pr)
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end
})
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local pool_adjacents = {
vector.new(1,0,0),
vector.new(-1,0,0),
vector.new(0,-1,0),
vector.new(0,0,1),
vector.new(0,0,-1),
}
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mcl_structures.register_structure("basalt_column",{
place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
terrain_feature = true,
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spawn_by = {"air"},
num_spawn_by = 2,
noise_params = {
offset = 0,
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scale = 0.003,
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spread = {x = 250, y = 250, z = 250},
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seed = 72235213,
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octaves = 5,
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persist = 0.3,
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flags = "absvalue",
},
flags = "all_floors",
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y_max = mcl_vars.mg_nether_max - 20,
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y_min = mcl_vars.mg_lava_nether_max + 1,
biomes = { "BasaltDelta" },
place_func = function(pos,def,pr)
local nn = minetest.find_nodes_in_area(vector.offset(pos,-5,-1,-5),vector.offset(pos,5,-1,5),{"air","mcl_blackstone:basalt","mcl_blackstone:blackstone"})
table.sort(nn,function(a, b)
return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
end)
if #nn < 1 then return false end
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local basalt = {}
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local magma = {}
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for i=1,pr:next(1,#nn) do
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if minetest.get_node(vector.offset(nn[i],0,-1,0)).name ~= "air" then
local dst=vector.distance(pos,nn[i])
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local r = pr:next(1,14)-dst
for ii=0,r do
if pr:next(1,25) == 1 then
table.insert(magma,vector.new(nn[i].x,nn[i].y + ii,nn[i].z))
else
table.insert(basalt,vector.new(nn[i].x,nn[i].y + ii,nn[i].z))
end
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end
end
end
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minetest.bulk_set_node(magma,{name="mcl_nether:magma"})
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minetest.bulk_set_node(basalt,{name="mcl_blackstone:basalt"})
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return true
end
})
mcl_structures.register_structure("basalt_pillar",{
place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
terrain_feature = true,
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noise_params = {
offset = 0,
scale = 0.001,
spread = {x = 250, y = 250, z = 250},
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seed = 7113,
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octaves = 5,
persist = 0.1,
flags = "absvalue",
},
flags = "all_floors",
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y_max = mcl_vars.mg_nether_max-40,
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y_min = mcl_vars.mg_lava_nether_max + 1,
biomes = { "BasaltDelta" },
place_func = function(pos,def,pr)
local nn = minetest.find_nodes_in_area(vector.offset(pos,-2,-1,-2),vector.offset(pos,2,-1,2),{"air","mcl_blackstone:basalt","mcl_blackstone:blackstone"})
table.sort(nn,function(a, b)
return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
end)
if #nn < 1 then return false end
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local basalt = {}
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local magma = {}
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for i=1,pr:next(1,#nn) do
if minetest.get_node(vector.offset(nn[i],0,-1,0)).name ~= "air" then
local dst=vector.distance(pos,nn[i])
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for ii=0,pr:next(19,35)-dst do
if pr:next(1,20) == 1 then
table.insert(magma,vector.new(nn[i].x,nn[i].y + ii,nn[i].z))
else
table.insert(basalt,vector.new(nn[i].x,nn[i].y + ii,nn[i].z))
end
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end
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end
end
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minetest.bulk_set_node(basalt,{name="mcl_blackstone:basalt"})
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minetest.bulk_set_node(magma,{name="mcl_nether:magma"})
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return true
end
})
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mcl_structures.register_structure("lavadelta",{
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place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
spawn_by = {"mcl_blackstone:basalt","mcl_blackstone:blackstone"},
num_spawn_by = 2,
terrain_feature = true,
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noise_params = {
offset = 0,
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scale = 0.005,
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spread = {x = 250, y = 250, z = 250},
seed = 78375213,
octaves = 5,
persist = 0.1,
flags = "absvalue",
},
flags = "all_floors",
y_max = mcl_vars.mg_nether_max,
y_min = mcl_vars.mg_lava_nether_max + 1,
biomes = { "BasaltDelta" },
place_func = function(pos,def,pr)
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local nn = minetest.find_nodes_in_area_under_air(vector.offset(pos,-10,-1,-10),vector.offset(pos,10,-2,10),{"mcl_blackstone:basalt","mcl_blackstone:blackstone","mcl_nether:netherrack"})
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table.sort(nn,function(a, b)
return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
end)
if #nn < 1 then return false end
local lava = {}
for i=1,pr:next(1,#nn) do
table.insert(lava,nn[i])
end
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minetest.bulk_set_node(lava,{name="mcl_nether:nether_lava_source"})
local basalt = {}
local magma = {}
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for _,v in pairs(lava) do
for _,vv in pairs(adjacents) do
local p = vector.add(v,vv)
if minetest.get_node(p).name ~= "mcl_nether:nether_lava_source" then
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table.insert(basalt,p)
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end
end
if math.random(3) == 1 then
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table.insert(magma,v)
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end
end
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minetest.bulk_set_node(basalt,{name="mcl_blackstone:basalt"})
minetest.bulk_set_node(magma,{name="mcl_nether:magma"})
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return true
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end
})