mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-06-28 16:04:55 +00:00
Starbeamrainbowlabs
a1911037d2
Next, we need to do the make_3d version, followed by the plumbing to worldeditadditions.noise(), followed by the chat command ....there's a lot to do.
37 lines
1.8 KiB
Lua
37 lines
1.8 KiB
Lua
|
|
-- ███ ███ █████ ██ ██ ███████ ██████ ██████
|
|
-- ████ ████ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██ ████ ██ ███████ █████ █████ █████ ██ ██
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██ ██ ██ ██ ██ ██ ███████ ███████ ███████ ██████
|
|
|
|
|
|
-- Generate a flat array of 2D noise.
|
|
-- Written with help from https://www.redblobgames.com/maps/terrain-from-noise/
|
|
-- @param size Vector An x/y vector representing the size of the noise area to generate.
|
|
-- @param params table|table<table> A table of noise params to use to generate the noise. Values that aren't specified are filled in automatically. If a table of tables is specified, it is interpreted as multiple octaves of noise to apply in sequence.
|
|
function worldeditadditions.noise.make_2d(size, params)
|
|
params = worldeditadditions.noise.params_apply_default(params)
|
|
|
|
local result = {}
|
|
|
|
local generator;
|
|
if params.algorithm == "perlin" then
|
|
generator = worldeditadditions.noise.perlin.new()
|
|
else -- We don't have any other generators just yet
|
|
return false, "Error: Unknown noise algorithm '"..params.."'."
|
|
end
|
|
|
|
for x=params.offset.x, params.offset.x+size.x do
|
|
for y=params.offset.y, params.offset.y+size.y do
|
|
local result = 0
|
|
for i,params_octave in ipairs(params) do
|
|
result = result + (generator:noise(x * scale.x, y * scale.y, 0) ^ params.exponent) * params.multiply + params.add
|
|
end
|
|
result[y*size.x + x] = result
|
|
end
|
|
end
|
|
|
|
return result
|
|
end
|