watershed/functions.lua

386 lines
10 KiB
Lua

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 == 3 or j == 4 then
for i = -2, 2 do
for k = -2, 2 do
local vil = area:index(x + i, y + j, z + k)
if math.random(64) == 2 then
data[vil] = c_apple
elseif math.random(5) ~= 2 then
data[vil] = c_wsappleaf
end
end
end
elseif j == 2 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_pinetree(x, y, z, area, data)
local c_wspitree = minetest.get_content_id("watershed:pinetree")
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_wspitree
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 == top - 2 or j == branch then -- branches
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 <= 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_wsactree = minetest.get_content_id("watershed:acaciatree")
local c_wsacleaf = 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_wsacleaf
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_wsactree
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_wsactree
end
end
end
else
local vit = area:index(x, y + j, z)
data[vit] = c_wsactree
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 = 0, ph do
local vip = area:index(x, y + j, z)
data[vip] = c_papyrus
end
end
-- Singlenode option
local SINGLENODE = true
if SINGLENODE then
-- Set mapgen parameters
minetest.register_on_mapgen_init(function(mgparams)
minetest.set_mapgen_params({mgname="singlenode"})
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 = 0.67
}
local np_smooth = {
offset = 0,
scale = 1,
spread = {x=512, y=512, z=512},
seed = 593,
octaves = 5,
persist = 0.33
}
local np_roughalt = {
offset = 0,
scale = 1,
spread = {x=414, y=414, z=414},
seed = -9003,
octaves = 6,
persist = 0.67
}
local np_smoothalt = {
offset = 0,
scale = 1,
spread = {x=414, y=414, z=414},
seed = -9003,
octaves = 5,
persist = 0.33
}
local np_base = {
offset = 0,
scale = 1,
spread = {x=4096, y=4096, z=4096},
seed = 8890,
octaves = 4,
persist = 0.33
}
local np_xlscale = {
offset = 0,
scale = 1,
spread = {x=8192, y=8192, z=8192},
seed = -72,
octaves = 3,
persist = 0.4
}
for chunk = 1, 64 do
print ("[watershed] searching for spawn "..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_roughalt = minetest.get_perlin_map(np_roughalt, chulens):get3dMap_flat(minposxyz)
local nvals_smoothalt = minetest.get_perlin_map(np_smoothalt, 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 n_rough = nvals_rough[nixyz]
local n_smooth = nvals_smooth[nixyz]
local n_roughalt = nvals_roughalt[nixyz]
local n_smoothalt = nvals_smoothalt[nixyz]
local n_base = nvals_base[nixz]
local n_xlscale = nvals_xlscale[nixz]
local grad = math.atan((TERCEN - y) / TERSCA) * ATANAMP
local densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad
local terblen = math.max(1 - math.abs(n_base), 0)
local density = densitybase +
math.abs((n_rough + n_roughalt) * 0.5 * terblen +
(n_smooth + n_smoothalt) * 0.25 * (1 - terblen)) ^ CANEXP * CANAMP
if y >= 1 and density > -0.01 and density < 0 then
ysp = y + 1
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)
end
-- ABM
-- update luxore light
minetest.register_abm({
nodenames = {"watershed:luxoreoff"},
interval = 13,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
minetest.remove_node(pos)
minetest.place_node(pos, {name="watershed:luxoreon"})
end,
})
-- Lava water cooling
minetest.register_abm({
nodenames = {"group:lava"},
neighbors = {"group:water"},
interval = 11,
chance = 64,
action = function(pos, node, active_object_count, active_object_count_wider)
minetest.add_node(pos, {name="default:obsidian"})
minetest.sound_play("default_cool_lava", {pos = pos, gain = 0.25})
end,
})