watershed/functions.lua

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function watershed_appletree(x, y, z, area, data)
local c_tree = minetest.get_content_id("default:tree")
local c_apple = minetest.get_content_id("default:apple")
local c_wsappleaf = minetest.get_content_id("watershed:appleleaf")
for j = -2, 4 do
if j >= 1 then
for i = -2, 2 do
for k = -2, 2 do
local vil = area:index(x + i, y + j + 1, z + k)
if math.random(48) == 2 then
data[vil] = c_apple
elseif math.random(5) ~= 2 then
data[vil] = c_wsappleaf
end
end
end
end
local vit = area:index(x, y + j, z)
data[vit] = c_tree
end
end
function watershed_pinetree(x, y, z, area, data)
local c_tree = minetest.get_content_id("default:tree")
local c_wsneedles = minetest.get_content_id("watershed:needles")
local c_snowblock = minetest.get_content_id("default:snowblock")
for j = -4, 14 do
if j == 3 or j == 6 or j == 9 or j == 12 then
for i = -2, 2 do
for k = -2, 2 do
if math.abs(i) == 2 or math.abs(k) == 2 then
if math.random(7) ~= 2 then
local vil = area:index(x + i, y + j, z + k)
data[vil] = c_wsneedles
local vila = area:index(x + i, y + j + 1, z + k)
data[vila] = c_snowblock
end
end
end
end
elseif j == 4 or j == 7 or j == 10 then
for i = -1, 1 do
for k = -1, 1 do
if not (i == 0 and j == 0) then
if math.random(11) ~= 2 then
local vil = area:index(x + i, y + j, z + k)
data[vil] = c_wsneedles
local vila = area:index(x + i, y + j + 1, z + k)
data[vila] = c_snowblock
end
end
end
end
elseif j == 13 then
for i = -1, 1 do
for k = -1, 1 do
if not (i == 0 and j == 0) then
local vil = area:index(x + i, y + j, z + k)
data[vil] = c_wsneedles
local vila = area:index(x + i, y + j + 1, z + k)
data[vila] = c_wsneedles
local vilaa = area:index(x + i, y + j + 2, z + k)
data[vilaa] = c_snowblock
end
end
end
end
local vit = area:index(x, y + j, z)
data[vit] = c_tree
end
local vil = area:index(x, y + 15, z)
local vila = area:index(x, y + 16, z)
local vilaa = area:index(x, y + 17, z)
data[vil] = c_wsneedles
data[vila] = c_wsneedles
data[vilaa] = c_snowblock
end
function watershed_jungletree(x, y, z, area, data)
local c_juntree = minetest.get_content_id("default:jungletree")
local c_wsjunleaf = minetest.get_content_id("watershed:jungleleaf")
local c_vine = minetest.get_content_id("watershed:vine")
local top = math.random(17,23)
local branch = math.floor(top * 0.6)
for j = -5, top do
if j == top or j == top - 1 or j == branch + 1 or j == branch + 2 then
for i = -2, 2 do -- leaves
for k = -2, 2 do
local vi = area:index(x + i, y + j, z + k)
if math.random(5) ~= 2 then
data[vi] = c_wsjunleaf
end
end
end
elseif j <= -1 or j == top - 2 or j == branch then -- branches, roots
for i = -1, 1 do
for k = -1, 1 do
if math.abs(i) + math.abs(k) == 2 then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_juntree
end
end
end
end
if j >= 0 and j <= top - 3 then -- climbable nodes
for i = -1, 1 do
for k = -1, 1 do
if math.abs(i) + math.abs(k) == 1 then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_vine
end
end
end
end
if j >= -1 and j <= top - 3 then -- trunk
local vi = area:index(x, y + j, z)
data[vi] = c_juntree
end
end
end
function watershed_acaciatree(x, y, z, area, data)
local c_tree = minetest.get_content_id("default:tree")
local c_wsaccleaf = minetest.get_content_id("watershed:acacialeaf")
for j = -3, 6 do
if j == 6 then
for i = -4, 4 do
for k = -4, 4 do
if not (i == 0 or k == 0) then
if math.random(7) ~= 2 then
local vil = area:index(x + i, y + j, z + k)
data[vil] = c_wsaccleaf
end
end
end
end
elseif j == 5 then
for i = -2, 2, 4 do
for k = -2, 2, 4 do
local vit = area:index(x + i, y + j, z + k)
data[vit] = c_tree
end
end
elseif j == 4 then
for i = -1, 1 do
for k = -1, 1 do
if math.abs(i) + math.abs(k) == 2 then
local vit = area:index(x + i, y + j, z + k)
data[vit] = c_tree
end
end
end
else
local vit = area:index(x, y + j, z)
data[vit] = c_tree
end
end
end
function watershed_flower(data, vi, noise)
local c_danwhi = minetest.get_content_id("flowers:dandelion_white")
local c_danyel = minetest.get_content_id("flowers:dandelion_yellow")
local c_rose = minetest.get_content_id("flowers:rose")
local c_tulip = minetest.get_content_id("flowers:tulip")
local c_geranium = minetest.get_content_id("flowers:geranium")
local c_viola = minetest.get_content_id("flowers:viola")
if noise > 0.8 then
data[vi] = c_danwhi
elseif noise > 0.4 then
data[vi] = c_rose
elseif noise > 0 then
data[vi] = c_tulip
elseif noise > -0.4 then
data[vi] = c_danyel
elseif noise > -0.8 then
data[vi] = c_geranium
else
data[vi] = c_viola
end
end
function watershed_cactus(x, y, z, area, data)
local c_wscactus = minetest.get_content_id("watershed:cactus")
for j = -2, 4 do
for i = -2, 2 do
if i == 0 or j == 2 or (j == 3 and math.abs(i) == 2) then
local vic = area:index(x + i, y + j, z)
data[vic] = c_wscactus
end
end
end
end
function watershed_papyrus(x, y, z, area, data)
local c_papyrus = minetest.get_content_id("default:papyrus")
local ph = math.random(1, 4)
for j = 1, ph do
local vip = area:index(x, y + j, z)
data[vip] = c_papyrus
end
end
-- Register buckets, lava fuel
bucket.register_liquid(
"watershed:water",
"watershed:waterflow",
"watershed:bucket_water",
"watershed_bucketwater.png",
"WS Water Bucket"
)
bucket.register_liquid(
"watershed:lava",
"watershed:lavaflow",
"watershed:bucket_lava",
"bucket_lava.png",
"WS Lava Bucket"
)
minetest.register_craft({
type = "fuel",
recipe = "watershed:bucket_lava",
burntime = 60,
replacements = {{"watershed:bucket_lava", "bucket:bucket_empty"}},
})
-- Lavacooling
minetest.register_abm({
nodenames = {"watershed:lavaflow"},
neighbors = {"group:water"},
interval = 1,
chance = 11,
action = function(pos, node, active_object_count, active_object_count_wider)
minetest.set_node(pos, {name="watershed:stone"})
minetest.sound_play("default_cool_lava", {pos = pos, gain = 0.25})
end,
})
minetest.register_abm({
nodenames = {"watershed:lava"},
neighbors = {"group:water"},
interval = 1,
chance = 11,
action = function(pos, node, active_object_count, active_object_count_wider)
minetest.set_node(pos, {name="default:obsidian"})
minetest.sound_play("default_cool_lava", {pos = pos, gain = 0.25})
end,
})
-- Set mapgen parameters
minetest.register_on_mapgen_init(function(mgparams)
minetest.set_mapgen_params({mgname="singlenode", flags = "nolight", flagmask = "nolight"})
end)
-- Spawn player
function spawnplayer(player)
local TERCEN = -160 -- Terrain 'centre', average seabed level
local TERSCA = 512 -- Vertical terrain scale
local ATANAMP = 1.1 -- Arctan function amplitude, smaller = more and larger floatlands above ridges
local XLSAMP = 0.2 -- Extra large scale height variation amplitude
local BASAMP = 0.4 -- Base terrain amplitude
local CANAMP = 0.4 -- Canyon terrain amplitude
local CANEXP = 1.33 -- Canyon shape exponent
local xsp
local ysp
local zsp
local np_rough = {
offset = 0,
scale = 1,
spread = {x=512, y=512, z=512},
seed = 593,
octaves = 6,
persist = 0.63
}
local np_smooth = {
offset = 0,
scale = 1,
spread = {x=512, y=512, z=512},
seed = 593,
octaves = 6,
persist = 0.3
}
local np_fault = {
offset = 0,
scale = 1,
spread = {x=512, y=1024, z=512},
seed = 14440002,
octaves = 6,
persist = 0.5
}
local np_base = {
offset = 0,
scale = 1,
spread = {x=4096, y=4096, z=4096},
seed = 8890,
octaves = 4,
persist = 0.4
}
local np_xlscale = {
offset = 0,
scale = 1,
spread = {x=8192, y=8192, z=8192},
seed = -72,
octaves = 3,
persist = 0.4
}
for chunk = 1, 32 do
print ("[watershed] chunk "..chunk)
local x0 = 80 * math.random(-24, 24) - 32
local z0 = 80 * math.random(-24, 24) - 32
local y0 = -32
local x1 = x0 + 79
local z1 = z0 + 79
local y1 = 47
local sidelen = 80
local chulens = {x=sidelen, y=sidelen, z=sidelen}
local minposxyz = {x=x0, y=y0, z=z0}
local minposxz = {x=x0, y=z0}
local nvals_rough = minetest.get_perlin_map(np_rough, chulens):get3dMap_flat(minposxyz)
local nvals_smooth = minetest.get_perlin_map(np_smooth, chulens):get3dMap_flat(minposxyz)
local nvals_fault = minetest.get_perlin_map(np_fault, chulens):get3dMap_flat(minposxyz)
local nvals_base = minetest.get_perlin_map(np_base, chulens):get2dMap_flat(minposxz)
local nvals_xlscale = minetest.get_perlin_map(np_xlscale, chulens):get2dMap_flat(minposxz)
local nixz = 1
local nixyz = 1
for z = z0, z1 do
for y = y0, y1 do
for x = x0, x1 do
local grad = math.atan((TERCEN - y) / TERSCA) * ATANAMP
local n_base = nvals_base[nixz]
local terblen = math.max(1 - math.abs(n_base), 0)
local densitybase = (1 - math.abs(n_base)) * BASAMP + nvals_xlscale[nixz] * XLSAMP + grad
local density
if nvals_fault[nixyz] >= 0 then
density = densitybase
+ math.abs(nvals_rough[nixyz] * terblen
+ nvals_smooth[nixyz] * (1 - terblen)) ^ CANEXP * CANAMP
else
density = densitybase
+ math.abs(nvals_rough[nixyz] * terblen
- nvals_smooth[nixyz] * (1 - terblen)) ^ CANEXP * CANAMP
end
if y >= 1 and density > -0.01 and density < 0 then
ysp = y
xsp = x
zsp = z
break
end
nixz = nixz + 1
nixyz = nixyz + 1
end
if ysp then
break
end
nixz = nixz - 80
end
if ysp then
break
end
nixz = nixz + 80
end
if ysp then
break
end
end
print ("[watershed] spawn player ("..xsp.." "..ysp.." "..zsp..")")
player:setpos({x=xsp, y=ysp, z=zsp})
end
minetest.register_on_newplayer(function(player)
spawnplayer(player)
end)
minetest.register_on_respawnplayer(function(player)
spawnplayer(player)
return true
end)