From 060c153c7828cf062acb7c7b41dfdbb515537122 Mon Sep 17 00:00:00 2001
From: Alexsandro Percy <alexsandro.percy@gmail.com>
Date: Sun, 26 Feb 2023 13:24:06 -0300
Subject: [PATCH] added wind support from climate_api

---
 init.lua |  1 +
 wind.lua | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 wind.lua

diff --git a/init.lua b/init.lua
index b6839c7..6f5667b 100644
--- a/init.lua
+++ b/init.lua
@@ -32,6 +32,7 @@ end
 if not minetest.settings:get_bool('airutils.disable_repair') then
     dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "airutils_repair.lua")
 end
+airutils.get_wind = dofile(minetest.get_modpath("airutils") .. DIR_DELIM ..'/wind.lua')
 dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "inventory_management.lua")
 dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "light.lua")
 dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "physics_lib.lua")
diff --git a/wind.lua b/wind.lua
new file mode 100644
index 0000000..0b4d80a
--- /dev/null
+++ b/wind.lua
@@ -0,0 +1,58 @@
+--[[
+MIT License
+
+Copyright (c) 2019 TheTermos, TestificateMods
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+]]--
+
+local get_wind
+
+if minetest.get_modpath("climate_api") then
+	get_wind = function(pos, multiplier)
+        multiplier = multiplier or 0.1
+		local wind = climate_api.environment.get_wind({x=0,y=0,z=0})
+		return vector.multiply(wind, multiplier)
+	end
+
+else
+	local yaw = math.random()*math.pi*2-math.pi
+	airutils.wind={}
+	airutils.wind.wind = vector.multiply(minetest.yaw_to_dir(yaw),4)
+	airutils.wind.timer = 0
+	airutils.wind.ttime = math.random()*5*60+1*60
+
+	get_wind = function(pos, multiplier)
+        local retVal = vector.multiply(airutils.wind.wind, multiplier)
+		return retVal
+	end
+
+	minetest.register_globalstep(
+	function(dtime)
+		airutils.wind.timer=airutils.wind.timer+dtime
+		if airutils.wind.timer >= airutils.wind.ttime then
+			local yaw = minetest.dir_to_yaw(airutils.wind.wind)
+			local yaw = yaw+math.random()-0.5
+			airutils.wind.wind = vector.multiply(minetest.yaw_to_dir(yaw),4)
+			airutils.wind.ttime = wind.timer+math.random()*5*60+1*60
+		end
+	end)
+end
+
+return get_wind