paramat/noisegrid
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Lakes. Grass. Higher hills. White lines. 7n width streets

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paramat 2014-05-15 07:48:49 +01:00
parent 936e0131be
commit 20d6f30c49
2 changed files with 66 additions and 28 deletions
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1
depends.txt
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@ -1 +1,2 @@
default
wool

99
init.lua
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@ -1,13 +1,14 @@
-- noisegrid 0.1.0 by paramat
-- noisegrid 0.2.0 by paramat
-- For latest stable Minetest and back to 0.4.8
-- Depends default
-- License: code WTFPL
-- Parameters
local TERSCA = 40
local YVAL = 3
local TERSCA = 128
local TROAD = 0.1
local TVAL = 0.12
local TVAL = 0.11
-- 2D noise for base terrain
@ -24,6 +25,19 @@ local np_base = {
noisegrid = {}
-- Nodes
minetest.register_node("noisegrid:grass", {
description = "Grass",
tiles = {"default_grass.png", "default_dirt.png", "default_grass.png"},
is_ground_content = false,
groups = {crumbly=3,soil=1},
drop = "default:dirt",
sounds = default.node_sound_dirt_defaults({
footstep = {name="default_grass_footstep", gain=0.25},
}),
})
-- Set mapgen parameters
minetest.register_on_mapgen_init(function(mgparams)
@ -48,7 +62,7 @@ end)
-- On generated function
minetest.register_on_generated(function(minp, maxp, seed)
if minp.y ~= -32 then
if minp.y < -192 or minp.y > 128 then
return
end
@ -66,8 +80,10 @@ minetest.register_on_generated(function(minp, maxp, seed)
local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
local data = vm:get_data()
local c_sand = minetest.get_content_id("default:sand")
local c_obsidian = minetest.get_content_id("default:obsidian")
local c_grass = minetest.get_content_id("noisegrid:grass")
local c_water = minetest.get_content_id("default:water_source")
local c_wblack = minetest.get_content_id("wool:black")
local c_wwhite = minetest.get_content_id("wool:white")
local sidelen = x1 - x0 + 1
local chulens = {x=sidelen, y=sidelen, z=sidelen}
@ -80,19 +96,19 @@ minetest.register_on_generated(function(minp, maxp, seed)
local eroad = false
local sroad = false
local wroad = false
if math.abs(nvals_base[6360]) < TROAD then
if math.abs(nvals_base[6359]) < TROAD then
nroad = true
end
if math.abs(nvals_base[3201]) < TROAD then
if math.abs(nvals_base[3121]) < TROAD then
wroad = true
end
if math.abs(nvals_base[3240]) < TROAD then
if math.abs(nvals_base[3160]) < TROAD then
cross = true
end
if math.abs(nvals_base[3280]) < TROAD then
if math.abs(nvals_base[3200]) < TROAD then
eroad = true
end
if math.abs(nvals_base[40]) < TROAD then
if math.abs(nvals_base[39]) < TROAD then
sroad = true
end
@ -104,34 +120,55 @@ minetest.register_on_generated(function(minp, maxp, seed)
local xr = x - x0
local zr = z - z0
local ysurf
local n_absbase = math.abs(nvals_base[nixz])
if n_absbase <= TVAL then
ysurf = 1
local n_base = nvals_base[nixz]
local n_absbase = math.abs(n_base)
if n_base > TVAL then
ysurf = YVAL + math.floor((n_base - TVAL) * TERSCA)
elseif n_base < -TVAL then
ysurf = YVAL - math.floor((-TVAL - n_base) * TERSCA)
else
ysurf = 1 + math.floor((n_absbase - TVAL) * TERSCA)
ysurf = YVAL
end
if y == 1 then
if xr >= 36 and xr <= 43 and zr >= 36 and zr <= 43 -- centre
if y == YVAL and n_absbase <= TVAL then
if xr >= 36 and xr <= 42 and zr >= 36 and zr <= 42 -- centre
and (nroad or eroad or sroad or wroad) and cross then
data[vi] = c_obsidian
elseif xr >= 36 and xr <= 43 and zr >= 44 -- north
data[vi] = c_wblack
elseif xr >= 36 and xr <= 42 and zr >= 43 -- north
and nroad and cross then
data[vi] = c_obsidian
elseif xr >= 44 and zr >= 36 and zr <= 43 -- east
and eroad and cross then
data[vi] = c_obsidian
elseif xr >= 36 and xr <= 43 and zr <= 35 -- south
and sroad and cross then
data[vi] = c_obsidian
elseif xr <= 35 and zr >= 36 and zr <= 43 -- west
and wroad and cross then
data[vi] = c_obsidian
if xr == 39 then
data[vi] = c_wwhite
else
data[vi] = c_sand
data[vi] = c_wblack
end
elseif xr >= 43 and zr >= 36 and zr <= 42 -- east
and eroad and cross then
if zr == 39 then
data[vi] = c_wwhite
else
data[vi] = c_wblack
end
elseif xr >= 36 and xr <= 42 and zr <= 35 -- south
and sroad and cross then
if xr == 39 then
data[vi] = c_wwhite
else
data[vi] = c_wblack
end
elseif xr <= 35 and zr >= 36 and zr <= 42 -- west
and wroad and cross then
if zr == 39 then
data[vi] = c_wwhite
else
data[vi] = c_wblack
end
else
data[vi] = c_grass
end
elseif y <= ysurf then
data[vi] = c_sand
data[vi] = c_grass
elseif y <= 1 then
data[vi] = c_water
end
nixz = nixz + 1
vi = vi + 1