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Faster mapgen: use voxelmanip for ungen check and scanning chunk below. Use sidelen not 80

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This commit is contained in:
Mat 2014-07-26 20:07:42 +01:00
parent 0a51271786
commit c0802ab89b
3 changed files with 31 additions and 29 deletions
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2
README.txt
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@ -1,4 +1,4 @@
watershed 0.4.1 by paramat watershed 0.4.3 by paramat
For latest stable Minetest back to 0.4.8 For latest stable Minetest back to 0.4.8
Depends default bucket Depends default bucket
Licenses: code WTFPL, textures CC BY-SA Licenses: code WTFPL, textures CC BY-SA

3
depends.txt
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@ -1,2 +1,3 @@
default default
bucket bucket
stairs

55
init.lua
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@ -1,11 +1,12 @@
-- watershed 0.4.2 by paramat -- watershed 0.4.3 by paramat
-- For latest stable Minetest and back to 0.4.8 -- For latest stable Minetest and back to 0.4.8
-- Depends default bucket -- Depends default bucket
-- License: code WTFPL, textures CC BY-SA -- License: code WTFPL, textures CC BY-SA
-- watershed:redcobble texture CC BY-SA by brunob.santos -- watershed:redcobble texture CC BY-SA by brunob.santos
-- watershed:pineling texture CC BY-SA by Splizard -- watershed:pineling texture CC BY-SA by Splizard
-- acaciawood, pinewood stairs and slabs -- use LVM for 'ungen' check, scanning chunk below, faster mapgen
-- 80 becomes sidelen, works with any chunk size
-- Parameters -- Parameters
@ -199,6 +200,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local data = vm:get_data() -- get flat array of voxelarea content ids local data = vm:get_data() -- get flat array of voxelarea content ids
-- content ids -- content ids
local c_air = minetest.get_content_id("air") local c_air = minetest.get_content_id("air")
local c_ignore = minetest.get_content_id("ignore")
local c_water = minetest.get_content_id("default:water_source") local c_water = minetest.get_content_id("default:water_source")
local c_sand = minetest.get_content_id("default:sand") local c_sand = minetest.get_content_id("default:sand")
local c_desand = minetest.get_content_id("default:desert_sand") local c_desand = minetest.get_content_id("default:desert_sand")
@ -242,7 +244,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
-- perlinmap stuff -- perlinmap stuff
local sidelen = x1 - x0 + 1 -- chunk sidelength local sidelen = x1 - x0 + 1 -- chunk sidelength
local chulens = {x=sidelen, y=sidelen+2, z=sidelen} -- chunk dimensions, '+2' for overgeneration local chulens = {x=sidelen, y=sidelen+2, z=sidelen} -- chunk dimensions, '+2' for overgeneration
local minposxyz = {x=x0, y=y0-1, z=z0} -- 3D and 2D perlinmaps start from these co-ordinates, '-1' for overgeneration local minposxyz = {x=x0, y=y0-1, z=z0}
local minposxz = {x=x0, y=z0} local minposxz = {x=x0, y=z0}
-- 3D and 2D perlinmaps -- 3D and 2D perlinmaps
local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz) local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz)
@ -257,10 +259,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
local nvals_xlscale = minetest.get_perlin_map(np_xlscale, chulens):get2dMap_flat(minposxz) local nvals_xlscale = minetest.get_perlin_map(np_xlscale, chulens):get2dMap_flat(minposxz)
local nvals_magma = minetest.get_perlin_map(np_magma, chulens):get2dMap_flat(minposxz) local nvals_magma = minetest.get_perlin_map(np_magma, chulens):get2dMap_flat(minposxz)
local ungen = false -- ungenerated chunk below? local viu = area:index(x0, y0-1, z0) -- ungenerated chunk below?
if minetest.get_node({x=x0, y=y0-1, z=z0}).name == "ignore" then local ungen = data[viu] == c_ignore
ungen = true
end
-- mapgen loop -- mapgen loop
local nixyz = 1 -- 3D and 2D perlinmap indexes local nixyz = 1 -- 3D and 2D perlinmap indexes
local nixz = 1 local nixz = 1
@ -345,24 +346,24 @@ minetest.register_on_generated(function(minp, maxp, seed)
stable[si] = 0 stable[si] = 0
end end
else -- scan top layer of chunk below else -- scan top layer of chunk below
local nodename = minetest.get_node({x=x,y=y,z=z}).name local nodid = data[vi]
if nodename == "watershed:stone" if nodid == c_wsstone
or nodename == "watershed:redstone" or nodid == c_wsredstone
or nodename == "watershed:dirt" or nodid == c_wsdirt
or nodename == "watershed:permafrost" or nodid == c_wspermafrost
or nodename == "watershed:luxoreoff" or nodid == c_wsluxore
or nodename == "default:sand" or nodid == c_sand
or nodename == "default:desert_sand" or nodid == c_desand
or nodename == "default:mese" or nodid == c_mese
or nodename == "default:stone_with_diamond" or nodid == c_stodiam
or nodename == "default:stone_with_gold" or nodid == c_stogold
or nodename == "default:stone_with_copper" or nodid == c_stocopp
or nodename == "default:stone_with_iron" or nodid == c_stoiron
or nodename == "default:stone_with_coal" or nodid == c_stocoal
or nodename == "default:sandstone" or nodid == c_sandstone
or nodename == "default:gravel" or nodid == c_gravel
or nodename == "default:clay" or nodid == c_clay
or nodename == "default:obsidian" then or nodid == c_obsidian then
stable[si] = 2 stable[si] = 2
else else
stable[si] = 0 stable[si] = 0
@ -638,9 +639,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
vi = vi + 1 vi = vi + 1
viu = viu + 1 viu = viu + 1
end end
nixz = nixz - 80 nixz = nixz - sidelen
end end
nixz = nixz + 80 nixz = nixz + sidelen
end end
-- voxelmanip stuff -- voxelmanip stuff
vm:set_data(data) vm:set_data(data)