nether/init-all.lua

1027 lines
25 KiB
Lua

-- Minetest 0.4 Mod: Nether
local NETHER_DEPTH = -2000
local NETHER_AMBIENT = 6
local nether_created = false
--RND CODE
--NO GRIEF WITH liquids
local function disable_placing_above_ground(name)
local table = minetest.registered_nodes[name]; if not table then return end
local table2 = {}
for i,v in pairs(table) do table2[i] = v end
table2.after_place_node = function(pos, placer, itemstack, pointed_thing)
if pos.y<= -2000 then minetest.set_node(pos,{name = "air"}) end
end
minetest.register_node(":"..name, table2)
end
minetest.after(0,function()
disable_placing_above_ground("default:water_source");
disable_placing_above_ground("default:river_water_source");
disable_placing_above_ground("default:lava_source");
disable_placing_above_ground("es:toxic_water_source");
disable_placing_above_ground("es:mud");
disable_placing_above_ground("bucket:bucket_water");
disable_placing_above_ground("bucket:bucket_river_water");
-- add here all other sources: toxic water, mud ,....
end)
minetest.register_node("nether:portal", {
description = "Nether Portal",
tiles = {
"nether_transparent.png",
"nether_transparent.png",
"nether_transparent.png",
"nether_transparent.png",
{
name = "nether_portal.png",
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 2,
},
},
{
name = "nether_portal.png",
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 2,
},
},
},
drawtype = "nodebox",
paramtype = "light",
paramtype2 = "facedir",
sunlight_propagates = true,
use_texture_alpha = true,
walkable = false,
digable = false,
pointable = false,
buildable_to = false,
drop = "",
light_source = 11,
post_effect_color = {a=180, r=145, g=50, b=230},
alpha = 192,
node_box = {
type = "fixed",
fixed = {
{-0.5, -0.5, -0.1, 0.5, 0.5, 0.1},
},
},
groups = {not_in_creative_inventory=1}
})
local function build_portal(pos, target)
local p = {x=pos.x-1, y=pos.y-1, z=pos.z}
local p1 = {x=pos.x-1, y=pos.y-1, z=pos.z}
local p2 = {x=p1.x+3, y=p1.y+4, z=p1.z}
local emin = {x=pos.x-100, y=pos.y-100, z=pos.z-100}
local emax = {x=p1.x+100, y=p1.y+100, z=p1.z+100}
local perlin1 = minetest.get_perlin(11,3, 0.5, 100)
local perlin2 = minetest.get_perlin(23,3, 0.5, 50)
local perlin3 = minetest.get_perlin(17,3, 0.5, 100)
local vm = minetest.get_voxel_manip()
local gmin
local gmax
gmin, gmax = vm:read_from_map(emin, emax)
local data = vm:get_data()
local area = VoxelArea:new{MinEdge=gmin, MaxEdge=gmax}
local c_air = minetest.get_content_id("air")
local c_fire = minetest.get_content_id("nether:permanent_flame")
local c_lava = minetest.get_content_id("lava_source")
local c_netherrack = minetest.get_content_id("nether:rack")
--insert cavegen here
for i=1,4 do
minetest.set_node(p, {name="default:obsidian"})
p.y = p.y+1
end
for i=1,3 do
minetest.set_node(p, {name="default:obsidian"})
p.x = p.x+1
end
for i=1,4 do
minetest.set_node(p, {name="default:obsidian"})
p.y = p.y-1
end
for i=1,3 do
minetest.set_node(p, {name="default:obsidian"})
p.x = p.x-1
end
for x=p1.x,p2.x do
for y=p1.y,p2.y do
p = {x=x, y=y, z=p1.z}
if not (x == p1.x or x == p2.x or y==p1.y or y==p2.y) then
minetest.set_node(p, {name="nether:portal", param2=0})
end
local meta = minetest.get_meta(p)
meta:set_string("p1", minetest.pos_to_string(p1))
meta:set_string("p2", minetest.pos_to_string(p2))
meta:set_string("target", minetest.pos_to_string(target))
end
end
nether_created = true
end
--begin to make broken
minetest.register_abm({
nodenames = {"nether:portal"},
--interval = 1,
interval = 7,
--chance = 2,
chance = 2,
action = function(pos, node)
minetest.add_particlespawner(
32, --amount
4, --time
{x=pos.x-0.25, y=pos.y-0.25, z=pos.z-0.25}, --minpos
{x=pos.x+0.25, y=pos.y+0.25, z=pos.z+0.25}, --maxpos
{x=-0.8, y=-0.8, z=-0.8}, --minvel
{x=0.8, y=0.8, z=0.8}, --maxvel
{x=0,y=0,z=0}, --minacc
{x=0,y=0,z=0}, --maxacc
0.5, --minexptime
1, --maxexptime
1, --minsize
2, --maxsize
false, --collisiondetection
"nether_particle.png" --texture
)
--for _,obj in ipairs(minetest.get_objects_inside_radius(pos, 1)) do
for _,obj in ipairs(minetest.get_objects_inside_radius(pos,1)) do
local lua_entity = obj:get_luaentity()
--if not obj:is_player() or lua_entity or lua_entity.itemstring ~= "" then
--local detected_obj = lua_entity.name or ""
if obj:is_player() or lua_entity then
local meta = minetest.get_meta(pos)
local target = minetest.string_to_pos(meta:get_string("target"))
if target then
minetest.after(3, function(obj, pos, target)
local objpos = obj:getpos() if objpos == nil then return end
objpos.y = objpos.y+0.5 -- Fix some glitches at -8000
if minetest.get_node(objpos).name ~= "nether:portal" then
return
end
obj:setpos(target)
minetest.sound_play("tng_transporter1", {pos=target,gain=0.5,max_hear_distance = 8,})
local function check_and_build_portal(pos, target)
local n = minetest.get_node_or_nil(target)
if n and n.name ~= "nether:portal" then
build_portal(target, pos)
minetest.after(1, check_and_build_portal, pos, target)
minetest.after(4, check_and_build_portal, pos, target)
elseif not n then
minetest.after(1, check_and_build_portal, pos, target)
end
end
minetest.after(1, check_and_build_portal, pos, target)
end, obj, pos, target)
end
--end
end
end
end,
})
--end make broken
local function move_check(p1, max, dir)
local p = {x=p1.x, y=p1.y, z=p1.z}
local d = math.abs(max-p1[dir]) / (max-p1[dir])
p[dir] = p[dir] + d
while p[dir] ~= max - d do
p[dir] = p[dir] + d
if minetest.get_node(p).name ~= "default:obsidian" then
return false
end
end
return true
end
local function check_portal(p1, p2)
if p1.x ~= p2.x then
if not move_check(p1, p2.x, "x") then
return false
end
if not move_check(p2, p1.x, "x") then
return false
end
elseif p1.z ~= p2.z then
if not move_check(p1, p2.z, "z") then
return false
end
if not move_check(p2, p1.z, "z") then
return false
end
else
return false
end
if not move_check(p1, p2.y, "y") then
return false
end
if not move_check(p2, p1.y, "y") then
return false
end
return true
end
local function is_portal(pos)
for d=-3,3 do
for y=-4,4 do
local px = {x=pos.x+d, y=pos.y+y, z=pos.z}
local pz = {x=pos.x, y=pos.y+y, z=pos.z+d}
if check_portal(px, {x=px.x+3, y=px.y+4, z=px.z}) then
return px, {x=px.x+3, y=px.y+4, z=px.z}
end
if check_portal(pz, {x=pz.x, y=pz.y+4, z=pz.z+3}) then
return pz, {x=pz.x, y=pz.y+4, z=pz.z+3}
end
end
end
end
--[[]]
local function make_portal(pos)
local p1, p2 = is_portal(pos)
if not p1 or not p2 then
return false
end
for d=1,2 do
for y=p1.y+1,p2.y-1 do
local p
if p1.z == p2.z then
p = {x=p1.x+d, y=y, z=p1.z}
else
p = {x=p1.x, y=y, z=p1.z+d}
end
if minetest.get_node(p).name ~= "air" then
return false
end
end
end
local param2
if p1.z == p2.z then param2 = 0 else param2 = 1 end
local target = {x=p1.x, y=p1.y, z=p1.z}
target.x = target.x + 1
if target.y < NETHER_DEPTH then
--target.y = math.random(-230, -240) --this makes return portal
target.y = math.random(8, 32) --this makes return portal
else
target.y = NETHER_DEPTH - 1000
end
for d=0,3 do
for y=p1.y,p2.y do
local p = {}
if param2 == 0 then p = {x=p1.x+d, y=y, z=p1.z} else p = {x=p1.x, y=y, z=p1.z+d} end
if minetest.get_node(p).name == "air" then
minetest.set_node(p, {name="nether:portal", param2=param2})
end
local meta = minetest.get_meta(p)
meta:set_string("p1", minetest.pos_to_string(p1))
meta:set_string("p2", minetest.pos_to_string(p2))
meta:set_string("target", minetest.pos_to_string(target))
end
end
return true
end
--[[]]
minetest.register_node(":default:obsidian", {
description = "Obsidian",
tiles = {"default_obsidian.png"},
is_ground_content = true,
sounds = default.node_sound_stone_defaults(),
groups = {cracky=1,level=2},
on_destruct = function(pos)
local meta = minetest.get_meta(pos)
local p1 = minetest.string_to_pos(meta:get_string("p1"))
local p2 = minetest.string_to_pos(meta:get_string("p2"))
local target = minetest.string_to_pos(meta:get_string("target"))
if not p1 or not p2 then
return
end
for x=p1.x,p2.x do
for y=p1.y,p2.y do
for z=p1.z,p2.z do
local nn = minetest.get_node({x=x,y=y,z=z}).name
if nn == "default:obsidian" or nn == "nether:portal" then
if nn == "nether:portal" then
minetest.remove_node({x=x,y=y,z=z})
end
local m = minetest.get_meta({x=x,y=y,z=z})
m:set_string("p1", "")
m:set_string("p2", "")
m:set_string("target", "")
end
end
end
end
meta = minetest.get_meta(target)
if not meta then
return
end
p1 = minetest.string_to_pos(meta:get_string("p1"))
p2 = minetest.string_to_pos(meta:get_string("p2"))
if not p1 or not p2 then
return
end
for x=p1.x,p2.x do
for y=p1.y,p2.y do
for z=p1.z,p2.z do
local nn = minetest.get_node({x=x,y=y,z=z}).name
if nn == "default:obsidian" or nn == "nether:portal" then
if nn == "nether:portal" then
minetest.remove_node({x=x,y=y,z=z})
end
local m = minetest.get_meta({x=x,y=y,z=z})
m:set_string("p1", "")
m:set_string("p2", "")
m:set_string("target", "")
end
end
end
end
end,
})
minetest.register_craftitem(":fire:flint_and_steel", {
description = "Flint -n- Steel",
inventory_image = "fire_flint_steel.png",
on_place = function(stack,_, pt)
if pt.under and minetest.get_node(pt.under).name == "default:obsidian" then
local done = make_portal(pt.under)
if done and not minetest.setting_getbool("creative_mode") then
stack:take_item()
end
end
return stack
end,
on_use = function(itemstack, user, pointed_thing)
local player_name = user:get_player_name()
local pt = pointed_thing
if pt.type == "node" and minetest.get_node(pt.above).name == "air" then
itemstack:add_wear(1000)
local node_under = minetest.get_node(pt.under).name
if minetest.get_item_group(node_under, "flammable") >= 0 then
if not minetest.is_protected(pt.above, player_name) then
--minetest.set_node(pt.above, {name = "fire:basic_flame"})
minetest.set_node(pt.above, {name = "fire:permanent_flame"})
else
minetest.chat_send_player(player_name, "This area is protected")
end
end
end
if not minetest.setting_getbool("creative_mode") then
return itemstack
end
end
})
--[[
minetest.register_node("nether:bedrock", {
description = "Bedrock",
tiles = {"bedrock2_bedrock.png"},
groups = {immortal=1, not_in_creative_inventory=1},
sounds = { footstep = { name = "default_gravel_footstep", gain = 1 } },
is_ground_content = false,
on_blast = function() end,
on_destruct = function () end,
can_dig = function() return false end,
diggable = false,
drop = "",
})
]]
minetest.register_node("nether:rack", {
description = "Netherrack",
tiles = {"nether_rack.png"},
is_ground_content = true,
drop = {
max_items = 1,
items = {{
rarity = 3,
items = {"nether:rack"},
}}
},
light_source = NETHER_AMBIENT,
groups = {cracky=3,level=0},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_node("nether:sand", {
description = "Soul Sand",
tiles = {"nether_sand.png"},
is_ground_content = true,
light_source = NETHER_AMBIENT,
groups = {crumbly=1,level=2,falling_node=1},
sounds = default.node_sound_dirt_defaults({
footstep = {name="default_gravel_footstep", gain=0.45},
}),
})
minetest.register_craftitem("nether:glowstone_dust", {
description = "Glowstone Dust",
inventory_image = "nether_glowstone_dust.png",
stack_max = 99,
})
minetest.register_node("nether:glowstone", {
description = "Glowstone",
tiles = {"nether_glowstone.png"},
is_ground_content = true,
light_source = 15,
stack_max = 99,
drop = {
items = {
{items = {'nether:glowstone_dust'}},
{items = {'nether:glowstone_dust'}},
{items = {'nether:glowstone_dust'},rarity=2},
{items = {'nether:glowstone_dust'},rarity=0},
}
},
--groups = {dig=default.dig.glowstone},
groups = {cracky=3,oddly_breakable_by_hand=3},
sounds = default.node_sound_glass_defaults(),
})
minetest.register_craft{
output = "nether:glowstone",
recipe = {
{"nether:glowstone_dust", "nether:glowstone_dust"},
{"nether:glowstone_dust", "nether:glowstone_dust"},
}
}
minetest.register_node("nether:brick", {
description = "Nether Brick",
tiles = {"nether_brick.png"},
groups = {cracky=2,level=2},
light_source = NETHER_AMBIENT-2,
sounds = default.node_sound_stone_defaults(),
})
minetest.register_node("nether:rack_with_diamond", {
description = "Diamond Ore",
tiles = {"nether_rack.png^default_mineral_diamond.png"},
groups = {cracky = 1},
drop = "default:diamond",
light_source = 10,
sounds = default.node_sound_stone_defaults(),
})
minetest.register_node("nether:permanent_flame", {
description = "Permanent Flame",
drawtype = "firelike",
tiles = {
{
name = "fire_basic_flame_animated.png",
animation = {
type = "vertical_frames",
aspect_w = 16,
aspect_h = 16,
length = 1
},
},
},
inventory_image = "fire_basic_flame.png",
paramtype = "light",
light_source = 14,
walkable = false,
buildable_to = true,
sunlight_propagates = true,
damage_per_second = 4,
groups = {igniter = 2, dig_immediate = 3},
drop = "",
on_blast = function()
end,
})
local fencenether_texture = "default_fence_overlay.png^nether_brick.png^default_fence_overlay.png^[makealpha:255,126,126"
minetest.register_node("nether:fence", {
description = "Nether Brick Fence",
drawtype = "fencelike",
tiles = {"nether_brick.png"},
inventory_image = fencenether_texture,
wield_image = fencenether_texture,
paramtype = "light",
is_ground_content = false,
selection_box = {
type = "fixed",
fixed = {-1/7, -1/2, -1/7, 1/7, 1/2, 1/7},
},
node_box = {
type = "fixed",
fixed = {
{-0.2, -0.5, -0.2, 0.2, 1.0, 0.2},
},
},
groups = {cracky=3,oddly_breakable_by_hand=2,flammable=2},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_craft({
output = 'nether:fence 6',
recipe = {
{'nether:brick', 'nether:brick', 'nether:brick'},
{'nether:brick', 'nether:brick', 'nether:brick'},
}
})
--Mapgen stuffs
-- nether
--[[
minetest.register_ore({
ore_type = "scatter",
ore = "air",
wherein = {"nether:rack"},
clust_scarcity = 1,
clust_num_ores = 20, --per node laggy
clust_size = 3, --thick
height_min = -3005,
height_max = -2990,
noise_threshhold = 1,
--noise_params = {offset=0, scale=1, spread={x=0.5, y=2, z=0.5}, seed=24, octaves=2, persist=1.0} --solid
noise_params = {offset=0, scale=1, spread={x=1, y=2, z=1}, seed=24, octaves=2, persist=0.8}
})
]]
minetest.register_ore({
ore_type = "blob",
ore = "nether:glowstone",
wherein = {"nether:rack"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -31000,
y_max = -2000,
noise_threshold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = -316,
octaves = 1,
persist = 0.0
},
})
minetest.register_ore({
ore_type = "blob",
ore = "nether:brick",
wherein = {"nether:rack"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -31000,
y_max = -2000,
noise_threshold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = -316,
octaves = 1,
persist = 0.0
},
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:lava_source",
wherein = "nether:rack",
clust_scarcity = 14 * 14 * 14,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -2100,
})
minetest.register_ore({
ore_type = "scatter",
ore = "nether:rack_with_diamond",
wherein = "nether:rack",
clust_scarcity = 14 * 14 * 14,
clust_num_ores = 12,
clust_size = 5,
y_min = -31000,
y_max = -3000,
})
minetest.register_ore({
ore_type = "scatter",
ore = "nether:glowstone",
wherein = "nether:rack",
clust_scarcity = 14 * 14 * 14,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -2000,
})
minetest.register_ore({
--ore_type = "blob",
ore_type = "scatter",
ore = "default:gravel",
wherein = {"nether:rack"},
clust_scarcity = 24 * 24 * 24,
clust_num_ores = 12,
clust_size = 8,
height_min = -31000,
height_max = -2000,
noise_threshhold = 0.4,
noise_params = {offset=0, scale=15, spread={x=130, y=130, z=130}, seed=24, octaves=3, persist=0.70}
})
minetest.register_ore({
ore_type = "sheet",
ore = "nether:sand",
wherein = {"nether:rack"},
clust_scarcity = 1,
clust_num_ores = 12,
clust_size = 8,
height_min = -31000,
height_max = -2000,
noise_threshhold = 0.9,
noise_params = {offset=0, scale=1, spread={x=30, y=30, z=30}, seed=24, octaves=3, persist=0.70}
})
minetest.register_ore({
ore_type = "scatter",
ore = "nether:permanent_flame",
--ore = "fire:basic_flame",
wherein = "nether:rack",
clust_scarcity = 18 *18 * 18,
clust_num_ores = 8,
clust_size = 3,
y_min = -31000,
y_max = -2000,
})
minetest.register_ore({
ore_type = "scatter",
ore = "nether:glowstone",
wherein = "nether:rack",
clust_scarcity = 8 * 8 * 8,
clust_num_ores = 8,
clust_size = 3,
y_min = -31000,
y_max = -2000,
})
-- Underground
minetest.register_biome({
name = "underground",
--node_dust = "",
--node_top = "",
--depth_top = ,
--node_filler = "nether:rack",
--depth_filler = ,
--node_stone = "nether:rack",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -2280,
y_max = -113,
heat_point = 50,
humidity_point = 50,
})
minetest.register_biome({
name = "bedrock_upper",
--node_dust = "",
--node_top = "",
--depth_top = ,
--node_filler = "nether:bedrock",
--depth_filler = ,
node_stone = "default:bedrock",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -2900,
y_max = -2281,
heat_point = 50,
humidity_point = 50,
})
minetest.register_biome({
name = "Nunderground",
--node_dust = "",
--node_top = "",
--depth_top = ,
--node_filler = "nether:rack",
--depth_filler = ,
node_stone = "nether:rack",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -3100,
y_max = -2901,
heat_point = 50,
humidity_point = 50,
})
minetest.register_biome({
name = "lava",
--node_dust = "",
--node_top = "",
--depth_top = ,
--node_filler = "default:lava_source",
--depth_filler = ,
node_stone = "default:lava_source",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -5000,
y_max = -3101,
heat_point = 50,
humidity_point = 50,
})
minetest.register_biome({
name = "bedrock_lower",
--node_dust = "",
--node_top = "",
--depth_top = ,
--node_filler = "nether:bedrock2",
--depth_filler = ,
node_stone = "default:bedrock",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -31000,
y_max = -5001,
heat_point = 50,
humidity_point = 50,
})
--paramats cavegen
--hacked by maikerumine
--params
local TCAVE = 0.6
local BLEND = 128
-- 3D noise
local np_cave = {
offset = 0,
scale = 1,
spread = {x = 384, y = 128, z = 384}, -- squashed 3:1
seed = 59033,
octaves = 5,
persist = 0.7
}
-- Stuff
local yblmax = NETHER_DEPTH - BLEND * 2
-- Register stair and slab
stairs.register_stair_and_slab(
"nether_brick",
"nether:brick",
{cracky = 2, level = 2},
{"nether_brick.png"},
"nether stair",
"nether slab",
default.node_sound_stone_defaults()
)
-- Craftitems
minetest.register_craftitem(":default:mese_crystal_fragment", {
description = "Mese Crystal Fragment",
inventory_image = "default_mese_crystal_fragment.png",
on_place = function(stack, _, pt)
if pt.under and minetest.get_node(pt.under).name == "default:obsidian" then
local done = make_portal(pt.under)
if done and not minetest.setting_getbool("creative_mode") then
stack:take_item()
end
end
return stack
end,
})
-- Crafting
minetest.register_craft({
output = "nether:brick 4",
recipe = {
{"nether:rack", "nether:rack"},
{"nether:rack", "nether:rack"},
}
})
minetest.register_craft({
output = "nether:fence_nether_brick 6",
recipe = {
{"nether:brick", "nether:brick", "nether:brick"},
{"nether:brick", "nether:brick", "nether:brick"},
},
})
-- Mapgen
-- Initialize noise object and localise noise buffer
local nobj_cave = nil
local nbuf_cave
-- Content ids
local c_air = minetest.get_content_id("air")
--[[
local c_stone_with_coal = minetest.get_content_id("default:stone_with_coal")
local c_stone_with_iron = minetest.get_content_id("default:stone_with_iron")
local c_stone_with_mese = minetest.get_content_id("default:stone_with_mese")
local c_stone_with_diamond = minetest.get_content_id("default:stone_with_diamond")
local c_stone_with_gold = minetest.get_content_id("default:stone_with_gold")
local c_stone_with_copper = minetest.get_content_id("default:stone_with_copper")
local c_mese = minetest.get_content_id("default:mese")
local c_gravel = minetest.get_content_id("default:gravel")
local c_dirt = minetest.get_content_id("default:dirt")
local c_sand = minetest.get_content_id("default:sand")
]]
local c_cobble = minetest.get_content_id("default:cobble")
local c_mossycobble = minetest.get_content_id("default:mossycobble")
local c_stair_cobble = minetest.get_content_id("stairs:stair_cobble")
local c_lava_source = minetest.get_content_id("default:lava_source")
local c_lava_flowing = minetest.get_content_id("default:lava_flowing")
local c_water_source = minetest.get_content_id("default:water_source")
local c_water_flowing = minetest.get_content_id("default:water_flowing")
local c_glowstone = minetest.get_content_id("nether:glowstone")
local c_nethersand = minetest.get_content_id("nether:sand")
local c_netherbrick = minetest.get_content_id("nether:brick")
local c_netherrack = minetest.get_content_id("nether:rack")
-- On-generated function
minetest.register_on_generated(function(minp, maxp, seed)
if minp.y > NETHER_DEPTH then
return
end
local t1 = os.clock()
local x1 = maxp.x
local y1 = maxp.y
local z1 = maxp.z
local x0 = minp.x
local y0 = minp.y
local z0 = minp.z
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
local area = VoxelArea:new{MinEdge = emin, MaxEdge = emax}
local data = vm:get_data()
local x11 = emax.x -- Limits of mapchunk plus mapblock shell
local y11 = emax.y
local z11 = emax.z
local x00 = emin.x
local y00 = emin.y
local z00 = emin.z
local ystride = x1 - x0 + 1
local zstride = ystride * ystride
local chulens = {x = ystride, y = ystride, z = ystride}
local minposxyz = {x = x0, y = y0, z = z0}
nobj_cave = nobj_cave or minetest.get_perlin_map(np_cave, chulens)
local nvals_cave = nobj_cave:get3dMap_flat(minposxyz, nbuf_cave)
for y = y00, y11 do -- Y loop first to minimise tcave calculations
local tcave
local in_chunk_y = false
if y >= y0 and y <= y1 then
if y > yblmax then
tcave = TCAVE + ((y - yblmax) / BLEND) ^ 2
else
tcave = TCAVE
end
in_chunk_y = true
end
for z = z00, z11 do
local vi = area:index(x00, y, z) -- Initial voxelmanip index
local ni
local in_chunk_yz = in_chunk_y and z >= z0 and z <= z1
for x = x00, x11 do
if in_chunk_yz and x == x0 then
-- Initial noisemap index
ni = (z - z0) * zstride + (y - y0) * ystride + 1
end
local in_chunk_yzx = in_chunk_yz and x >= x0 and x <= x1 -- In mapchunk
local id = data[vi] -- Existing node
-- Cave air, cave liquids and dungeons are overgenerated,
-- convert these throughout mapchunk plus shell
if id == c_air or -- Air and liquids to air
-- id == c_lava_source or
-- id == c_lava_flowing or
id == c_water_source or
id == c_water_flowing then
data[vi] = c_air
-- Dungeons are preserved so we don't need
-- to check for cavern in the shell
elseif id == c_cobble or -- Dungeons (preserved) to netherbrick
id == c_mossycobble or
id == c_stair_cobble then
data[vi] = c_netherbrick
end
if in_chunk_yzx then -- In mapchunk
if nvals_cave[ni] > tcave then -- Only excavate cavern in mapchunk
data[vi] = c_air
--[[
elseif id == c_mese then -- Mese block to lava
data[vi] = c_lava_source
elseif id == c_stone_with_gold or -- Precious ores to glowstone
id == c_stone_with_mese or
id == c_stone_with_diamond then
data[vi] = c_glowstone
elseif id == c_gravel or -- Blob ore to nethersand
id == c_dirt or
id == c_sand then
data[vi] = c_nethersand
else -- All else to netherstone
data[vi] = c_netherrack
]]
end
ni = ni + 1 -- Only increment noise index in mapchunk
end
vi = vi + 1
end
end
end
vm:set_data(data)
vm:set_lighting({day = 0, night = 0})
vm:calc_lighting()
vm:update_liquids()
vm:write_to_map()
local chugent = math.ceil((os.clock() - t1) * 1000)
print ("[nether] generate chunk " .. chugent .. " ms")
end)