From 720b24ed2d03d84f33427dc75bea0684a36b68c5 Mon Sep 17 00:00:00 2001
From: Paramat <paramat@users.noreply.github.com>
Date: Mon, 6 Apr 2020 21:05:07 +0100
Subject: [PATCH] Weather mod: Tune cloud density variation
Previously, cloud density was too low at medium humidity.
Tune cloud density variation to match the default/classic value at
humidity midvalue 50.
Tune the lower limit of cloud density that occurs at extreme low
humidity.
Increase minimum cloud thickness to 2 nodes.
Add comments.
---
mods/weather/init.lua | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/mods/weather/init.lua b/mods/weather/init.lua
index c0d1098f..3b9a305a 100644
--- a/mods/weather/init.lua
+++ b/mods/weather/init.lua
@@ -82,18 +82,26 @@ local function update_clouds()
nobj_speedx = nobj_speedx or minetest.get_perlin(np_speedx)
nobj_speedz = nobj_speedz or minetest.get_perlin(np_speedz)
- local n_density = nobj_density:get_2d({x = time, y = 0})
- local n_thickness = nobj_thickness:get_2d({x = time, y = 0})
- local n_speedx = nobj_speedx:get_2d({x = time, y = 0})
- local n_speedz = nobj_speedz:get_2d({x = time, y = 0})
+ local n_density = nobj_density:get_2d({x = time, y = 0}) -- 0 to 1
+ local n_thickness = nobj_thickness:get_2d({x = time, y = 0}) -- 0 to 1
+ local n_speedx = nobj_speedx:get_2d({x = time, y = 0}) -- -1 to 1
+ local n_speedz = nobj_speedz:get_2d({x = time, y = 0}) -- -1 to 1
for _, player in ipairs(minetest.get_connected_players()) do
local humid = minetest.get_humidity(player:get_pos())
+ -- Default and classic density value is 0.4, make this happen
+ -- at humidity midvalue 50 when n_density is at midvalue 0.5.
+ -- density_max = 0.25 at humid = 0.
+ -- density_max = 0.8 at humid = 50.
+ -- density_max = 1.35 at humid = 100.
+ local density_max = 0.8 + ((humid - 50) / 50) * 0.55
player:set_clouds({
- density = rangelim(humid / 100, 0.25, 1.0) * n_density,
+ -- Range limit density_max to always have occasional
+ -- small scattered clouds at extreme low humidity.
+ density = rangelim(density_max, 0.2, 1.0) * n_density,
thickness = math.max(math.floor(
rangelim(32 * humid / 100, 8, 32) * n_thickness
- ), 1),
+ ), 2),
speed = {x = n_speedx * 4, z = n_speedz * 4},
})
end
--
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