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Move nyancats into a separate mod

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Nyancats are independent in the default mod. Nothing else uses them or
their code. Separating it into a separate mod makes it easier for
subgames to remove them. It also makes it easier for a mod to depend
on nyancats, as lots of subgames don't have them.

Default/mapgen.lua: Register biomes, ores and decorations in
singlenode mapgen. These were never disabled anyway because
singlenode was removed from the world creation menu.
This commit is contained in:
rubenwardy 2016-07-11 17:55:17 +01:00 • committed by paramat
parent 0bd13d11cf
commit 3661cb61e3
13 changed files with 129 additions and 105 deletions
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63
mods/default/mapgen.lua
View file

@ -49,7 +49,7 @@ function default.register_ores()
-- Clay
-- This first to avoid clay in sand blobs
minetest.register_ore({
minetest.register_ore({
ore_type = "blob",
ore = "default:clay",
wherein = {"default:sand"},
@ -70,7 +70,7 @@ function default.register_ores()
-- Sand
minetest.register_ore({
minetest.register_ore({
ore_type = "blob",
ore = "default:sand",
wherein = {"default:stone", "default:sandstone",
@ -1464,73 +1464,16 @@ function default.register_decorations()
end
--
-- Generate nyan cats
--
-- All mapgens except singlenode
function default.make_nyancat(pos, facedir, length)
local tailvec = {x = 0, y = 0, z = 0}
if facedir == 0 then
tailvec.z = 1
elseif facedir == 1 then
tailvec.x = 1
elseif facedir == 2 then
tailvec.z = -1
elseif facedir == 3 then
tailvec.x = -1
else
facedir = 0
tailvec.z = 1
end
local p = {x = pos.x, y = pos.y, z = pos.z}
minetest.set_node(p, {name = "default:nyancat", param2 = facedir})
for i = 1, length do
p.x = p.x + tailvec.x
p.z = p.z + tailvec.z
minetest.set_node(p, {name = "default:nyancat_rainbow", param2 = facedir})
end
end
function default.generate_nyancats(minp, maxp, seed)
local height_min = -31000
local height_max = -32
if maxp.y < height_min or minp.y > height_max then
return
end
local y_min = math.max(minp.y, height_min)
local y_max = math.min(maxp.y, height_max)
local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
local pr = PseudoRandom(seed + 9324342)
local max_num_nyancats = math.floor(volume / (16 * 16 * 16))
for i = 1, max_num_nyancats do
if pr:next(0, 1000) == 0 then
local x0 = pr:next(minp.x, maxp.x)
local y0 = pr:next(minp.y, maxp.y)
local z0 = pr:next(minp.z, maxp.z)
local p0 = {x = x0, y = y0, z = z0}
default.make_nyancat(p0, pr:next(0, 3), pr:next(3, 15))
end
end
end
--
-- Detect mapgen to select functions
--
-- Mods using singlenode mapgen can call these functions to enable
-- the use of minetest.generate_ores or minetest.generate_decorations
local mg_name = minetest.get_mapgen_setting("mg_name")
if mg_name == "v6" then
default.register_ores()
default.register_mgv6_decorations()
minetest.register_on_generated(default.generate_nyancats)
elseif mg_name ~= "singlenode" then
else
default.register_biomes()
default.register_ores()
default.register_decorations()
minetest.register_on_generated(default.generate_nyancats)
end