first partially working version without Nether
parent
2d94d74d97
commit
d8703137d4
189
init.lua
189
init.lua
|
@ -21,32 +21,6 @@
|
|||
]]--
|
||||
|
||||
|
||||
-- Parameters
|
||||
|
||||
local NETHER_DEPTH = -5000
|
||||
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,
|
||||
lacunarity = 2.0,
|
||||
--flags = ""
|
||||
}
|
||||
|
||||
|
||||
-- Stuff
|
||||
|
||||
local yblmax = NETHER_DEPTH - BLEND * 2
|
||||
|
||||
|
||||
-- Functions
|
||||
|
||||
local function build_portal(pos, target)
|
||||
|
@ -98,49 +72,6 @@ local function volume_is_natural(minp, maxp)
|
|||
end
|
||||
|
||||
|
||||
local function find_nether_target_y(target_x, target_z, start_y)
|
||||
local nobj_cave_point = minetest.get_perlin(np_cave)
|
||||
local air = 0 -- Consecutive air nodes found
|
||||
|
||||
for y = start_y, start_y - 4096, -1 do
|
||||
local nval_cave = nobj_cave_point:get3d({x = target_x, y = y, z = target_z})
|
||||
|
||||
if nval_cave > TCAVE then -- Cavern
|
||||
air = air + 1
|
||||
else -- Not cavern, check if 4 nodes of space above
|
||||
if air >= 4 then
|
||||
-- Check volume for non-natural nodes
|
||||
local minp = {x = target_x - 1, y = y - 1, z = target_z - 2}
|
||||
local maxp = {x = target_x + 2, y = y + 3, z = target_z + 2}
|
||||
if volume_is_natural(minp, maxp) then
|
||||
return y + 2
|
||||
else -- Restart search a little lower
|
||||
find_nether_target_y(target_x, target_z, y - 16)
|
||||
end
|
||||
else -- Not enough space, reset air to zero
|
||||
air = 0
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
return start_y -- Fallback
|
||||
end
|
||||
|
||||
|
||||
local function find_surface_target_y(target_x, target_z, start_y)
|
||||
for y = start_y, start_y - 256, -16 do
|
||||
-- Check volume for non-natural nodes
|
||||
local minp = {x = target_x - 1, y = y - 1, z = target_z - 2}
|
||||
local maxp = {x = target_x + 2, y = y + 3, z = target_z + 2}
|
||||
if volume_is_natural(minp, maxp) then
|
||||
return y
|
||||
end
|
||||
end
|
||||
|
||||
return start_y - 256 -- Fallback
|
||||
end
|
||||
|
||||
|
||||
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])
|
||||
|
@ -231,13 +162,7 @@ local function make_portal(pos)
|
|||
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 = find_surface_target_y(target.x, target.z, -16)
|
||||
else
|
||||
local start_y = NETHER_DEPTH - math.random(500, 1500) -- Search start
|
||||
target.y = find_nether_target_y(target.x, target.z, start_y)
|
||||
end
|
||||
-- don't find nether, since nether-blocks not nether mod
|
||||
|
||||
for d = 0, 3 do
|
||||
for y = p1.y, p2.y do
|
||||
|
@ -289,12 +214,6 @@ minetest.register_abm({
|
|||
local meta = minetest.get_meta(pos)
|
||||
local target = minetest.string_to_pos(meta:get_string("target"))
|
||||
if target then
|
||||
-- force emerge of target area
|
||||
minetest.get_voxel_manip():read_from_map(target, target)
|
||||
if not minetest.get_node_or_nil(target) then
|
||||
minetest.emerge_area(
|
||||
vector.subtract(target, 4), vector.add(target, 4))
|
||||
end
|
||||
-- teleport the player
|
||||
minetest.after(3, function(o, p, t)
|
||||
local objpos = o:getpos()
|
||||
|
@ -601,109 +520,3 @@ 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 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(dbuf)
|
||||
|
||||
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()
|
||||
end)
|
||||
|
|
Loading…
Reference in New Issue