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3c3248108c
rocks/init.lua
Tomáš Brada 3c3248108c Add api for veins and ores. New api for layers.
2014-12-29 19:04:59 +01:00

407 lines
11 KiB
Lua
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-- Load translation library if intllib is installed
local S
if (minetest.get_modpath("intllib")) then
dofile(minetest.get_modpath("intllib").."/intllib.lua")
S = intllib.Getter(minetest.get_current_modname())
else
S = function ( s ) return s end
end
rocks = {}
rocks.layers = {}
rocks.veins = {}
rocks.ores = {}
rocks.noiseparams_layers = {
offset = 0,
scale = 1,
spread = {x=300, y=300, z=300},
octaves = 3,
persist = 0.63
}
rocks.register_layer=function(name,params,rock)
assert(name)
assert(params)
assert(params.gain)
assert(params.height)
local maxheight
for ln,ld in pairs(rocks.layers) do
if (ld.height<params.height)and ((not ld.maxheight) or (ld.maxheight>params.height)) then ld.maxheight=params.height end
if (ld.height>params.height)and((not maxheight) or (maxheight>ld.height)) then maxheight=ld.height end
end
rocks.layers[name]= {
gain=params.gain,
height=params.height,
maxheight=maxheight,
limit=params.limit,
seed=params.seed,
rock={ block=rock },
veins={}
}
print("[rocks] layer "..name)
end
rocks.register_vein=function(name,params)
assert(name)
assert(params)
assert(not rocks.veins[name])
rocks.veins[name]={
np={
offset=0, scale=1, octaves=1, presist=0.8,
spread=params.spread, seed=params.seed
},
treshold=params.treshold,
hmin=params.hmin, hmax=params.hmax,
layers=params.layers,
ores={}
}
for ln,ld in pairs(rocks.layers) do
ld.veins[name]=rocks.veins[name]
end
print("[rocks] vein "..name)
end
rocks.register_ore=function( vein, node, params )
-- params= {treshold=0, chance=1 }
ore={ node=node }
if params.treshold and (params.treshold>rocks.veins[vein].treshold) then
ore.treshold=params.treshold
end
if params.chance and (params.chance<1) then
ore.chance=params.chance
end
table.insert(rocks.veins[vein].ores, ore)
print("[rocks] ore "..node.." in "..vein.." chance="..(ore.chance or "1").." treshold="..(ore.treshold or rocks.veins[vein].treshold))
end
--
-- test layer
--
rocks.register_layer("test1",{ gain=40, height=70, limit=2, seed=1 },"rocks:black_granite")
-- uhlie ako vrstva je kokotina.
rocks.register_layer("test3",{ gain=40, height=65, limit=2, seed=3 },"rocks:pink_granite")
rocks.register_layer("test4",{ gain=40, height=90, limit=2, seed=4 },"rocks:white_granite")
--
-- test vein
--
rocks.register_vein("testvein1",{
spread = {x=5, y=90, z=5}, -- tall, narrow
-- larger values -> larger and less frequent vein
treshold=0.5, -- betveen -2 and +2, mapgen will use this or per-ore treshold if it is larger
-- 2 never generate
-- 1 extremly rare
-- 0 50% chance
-- less than 0 = SPAM
seed = 9, -- random seed
hmin=65, -- set to nil to generate everywhere
hmax=90,
layers={ "test3" }, -- only occur in layers
})
rocks.register_ore( "testvein1", "default:dirt" , {treshold=0, chance=1 } )
-- treshold=0 chance=1 ... generate everywhere
rocks.register_ore( "testvein1", "default:wood" , {treshold=0, chance=0.2} )
-- chance<1 ... vein contains chance*100% of the material, evenly randomly distributed
rocks.register_ore( "testvein1", "default:lava_source", {treshold=0.8, chance=1 } )
-- treshold>0 ... generate in the center, larger value -> narrower
-- 20% wood, lava in center, dirt the rest
-- ore with smallest chance and highest treshold is selected
for ln,ld in pairs(rocks.layers) do
-- print("[rocks] debug: "..ln..": "..minetest.serialize(ld))
end
--
-- layer generator
--
local function mknoises(layers,minp,maxp)
local nm={}
for ln,ld in pairs(rocks.layers) do
if (ld.height-ld.gain<maxp.y)and((not ld.maxheight)or(ld.maxheight+ld.gain>minp.y)) then
local np=rocks.noiseparams_layers
np.seed=ld.seed
local side_length = maxp.x - minp.x + 1
ld.nmap=minetest.get_perlin_map(np,{x=side_length, y=side_length, z=side_length}):get2dMap({x=minp.x, y=minp.z})
table.insert(nm,ld)
end
end
return nm
end
local function mkheightmap(layers,x,z,minp,maxp)
local hm={}
for ln,ld in pairs(layers) do
local noise=ld.nmap[z-minp.z+1][x-minp.x+1]
if math.abs(noise)<ld.limit then
ld.nh = (noise*ld.gain)+ld.height
-- if (ld.nh<maxy)and(ld.nh>miny)
table.insert(hm,ld)
end
end
return hm
end
local stonectx=nil
minetest.register_on_generated(function(minp, maxp, seed)
if not stonectx then stonectx= minetest.get_content_id("default:stone") end
-- noise values range (-1;+1) (1 octave)
-- 3 octaves it is like 1.7 max
-- 4 octaves with 0.8 presist = 2.125 max !!
-- if ...
local timebefore=os.clock();
local manipulator, emin, emax = minetest.get_mapgen_object("voxelmanip")
local nodes = manipulator:get_data()
local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
-- initialize noises and sort out unused layers
local availlayers=mknoises(rocks.layers,minp,maxp)
--
for x=minp.x,maxp.x,1 do
for z=minp.z,maxp.z,1 do
--* initialize layers hmap
local layers=mkheightmap(availlayers,x,z,minp,maxp)
if (minp.x>0)and(minp.x<200) then layers=nil end --< debug
if layers then for y=minp.y,maxp.y,1 do
--* select layer
local layer
for ln,ld in pairs(layers) do
if (ld)and
(ld.nh<y)and
((not layer)or(ld.height>layer.height))
then
layer=ld
end
end
--* select vein
local vein=nil
if layer then
-- vein=todo... iterate vein's noises and select one above it's treshold
end
--* select rock
local rock=nil
if vein then
rock=nil -- todo... --> based on pseudorandom, no pattern, just random
elseif layer then
rock=layer.rock -- not in vein > select base rock
end
--* place rocks
if rock then
if not rock.ctx then
rock.ctx=minetest.get_content_id(rock.block)
end
local p_pos = area:index(x, y, z)
nodes[p_pos] = rock.ctx
end
end end
end
end
manipulator:set_data(nodes)
-- manipulator:calc_lighting()
-- manipulator:update_liquids()
manipulator:write_to_map()
print("[rocks] gen "..os.clock()-timebefore)
end)
--
--Bedrock
--
minetest.register_node( "rocks:pink_granite", {
description = "Pink Granite",
tiles = { "rocks_pgr.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:pink_granite",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=31, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:black_granite", {
description = "Black Granite",
tiles = { "rocks_blkgr.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:black_granite",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=32, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:white_granite", {
description = "White Granite",
tiles = { "rocks_wgr.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:white_granite",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=33, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:brown_granite", {
description = "Brown Granite",
tiles = { "rocks_brgr.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:brown_granite",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=34, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:red_sandstone", {
description = "Red Sandstone",
tiles = { "rocks_rss.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:red_sandstone",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=35, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:yellow_sandstone", {
description = "Yellow Sandstone",
tiles = { "rocks_yss.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:yellow_sandstone",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=36, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:white_marble", {
description = "White Marble",
tiles = { "rocks_wm.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:white_marble",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=37, octaves=11, persist=0.0000000001}
})
minetest.register_node( "rocks:black_basalt", {
description = "Black Basalt",
tiles = { "rocks_bb.png" },
is_ground_content = true,
groups = {cracky=3, stone=1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_ore({
ore_type = "sheet",
ore = "rocks:black_basalt",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 60,
height_min = -31000,
height_max = -46,
noise_threshhold = 0.2,
noise_params = {offset=0, scale=80, spread={x=4350, y=4350, z=4350}, seed=38, octaves=11, persist=0.0000000001}
})
minetest.register_ore({
ore_type = "sheet",
ore = "default:clay",
wherein = "do_not_generate",
clust_scarcity = 1,
clust_num_ores = 1,
clust_size = 6,
height_min = -31000,
height_max = 15,
noise_threshhold = 0.5,
noise_params = {offset=0, scale=15, spread={x=25, y=20, z=30}, seed=15, octaves=3, persist=0.10}
})
print("[rocks] loaded.")
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