sztest/nodecore-cd2025
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Unify dungeon API RNG

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Avoid having to have each dungeon generation method manage its
own RNG, which should save a lot of time on RNG seeding.
This commit is contained in:
Aaron Suen 2021-09-27 08:04:09 -04:00
parent 2e9d342110
commit 47d0b68dba
3 changed files with 11 additions and 17 deletions
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16
mods/nc_loot/init.lua
View File

@ -24,9 +24,6 @@ do
end
end
local mapperlin
minetest.after(0, function() mapperlin = minetest.get_perlin(432, 1, 0, 1) end)
local function lootstack(pos, rng)
local loot = nodecore.pickrand(loottable,
function(t) return pos.y <= t.depth and t.prob or 0 end,
@ -57,8 +54,7 @@ minetest.after(0, function()
end
end)
local function addloot(pos, height)
local rng = nodecore.seeded_rng(mapperlin:get_3d(pos))
local function addloot(pos, height, rng)
if rng(1, 5) == 1 and #nodecore.find_nodes_around(pos, cobblist, {1, 0, 1}) > 0 then
local max = nodecore.exporand(2, rng)
if max < 1 then max = 1 elseif max > height then max = height end
@ -77,27 +73,25 @@ end
nodecore.register_dungeongen({
label = "dungeon loot",
priority = 100,
func = function(pos)
func = function(pos, _, rng)
local above = {x = pos.x, y = pos.y + 1, z = pos.z}
if minetest.get_node(above).name ~= "air" then return end
local rand = mapperlin:get_3d(pos)
rand = rand - math_floor(rand)
local prob = 0.1
if pos.y < -128 then
prob = prob * math_log(pos.y / -64) / math_log(2)
end
if rand > prob then return end
if rng() > prob then return end
for dy = 2, 8 do
local p = {x = pos.x, y = pos.y + dy, z = pos.z}
local nn = minetest.get_node(p).name
if cobbles[nn] then
return #nodecore.find_nodes_around(pos,
{"air"}, {1, 0, 1}) > 0
or addloot(above, dy - 2)
or addloot(above, dy - 2, rng)
end
if nn ~= "air" then return end
end
if pos.y > -64 then return end
addloot(above, 8)
addloot(above, 8, rng)
end
})

6
mods/nc_stonework/dungeon.lua
View File

@ -5,9 +5,6 @@ local minetest, nodecore
local modname = minetest.get_current_modname()
local mapperlin
minetest.after(0, function() mapperlin = minetest.get_perlin(45821, 1, 0, 1) end)
function nodecore.dungeon_bricks()
return {
brick = modname .. ":bricks_stone",
@ -18,8 +15,7 @@ end
nodecore.register_dungeongen({
label = "dungeon concrete/bricks",
priority = -100,
func = function(pos)
local rng = nodecore.seeded_rng(mapperlin:get_3d(pos))
func = function(pos, _, rng)
local profile = nodecore.dungeon_bricks(pos, rng)
if rng(1, 4) ~= 1 then
return profile.fill and

6
mods/nc_terrain/dungeon.lua
View File

@ -41,10 +41,14 @@ function nodecore.register_dungeongen(def)
table_insert(dungens, min, def)
end
local mapperlin
minetest.after(0, function() mapperlin = minetest.get_perlin(45821, 1, 0, 1) end)
local function dungeonprocess(pos, node)
local rng = nodecore.seeded_rng(mapperlin:get_3d(pos))
for _, def in ipairs(dungens) do
if def.enabled ~= false then
def.func(pos, node)
def.func(pos, node, rng)
if minetest.get_node(pos).name ~= node.name then return end
end
end