From 08d7f5d54cc9bd3e48539ee6470ec394ba376577 Mon Sep 17 00:00:00 2001
From: theFox6 <the.fox6@gmx.de>
Date: Tue, 8 May 2018 15:24:38 +0200
Subject: [PATCH] added support for the lightning mod

---
 weather/api.lua     | 37 ++++++++++++++++++++++++-------------
 weather/command.lua |  1 +
 weather/depends.txt |  1 +
 weather/init.lua    |  2 ++
 weather/rain.lua    |  1 +
 5 files changed, 29 insertions(+), 13 deletions(-)
 create mode 100644 weather/depends.txt

diff --git a/weather/api.lua b/weather/api.lua
index 6ce4f55..33a5753 100644
--- a/weather/api.lua
+++ b/weather/api.lua
@@ -55,39 +55,49 @@ function weather_mod.register_downfall(id,def)
 	if not ndef.size then
 		ndef.size = 25
 	end
-	weather_mod.registered_downfalls[name]=def
+	if not ndef.enable_lightning then
+		ndef.enable_lightning=false
+	end
+	weather_mod.registered_downfalls[name]=ndef
+end
+
+if minetest.get_modpath("lightning") then
+	lightning.auto = false
+end
+
+function weather_mod.handle_lightning()
+	if not minetest.get_modpath("lightning") then return end
+	local current_downfall = weather_mod.registered_downfalls[weather.type]
+	lightning.auto = current_downfall.enable_lightning
+	if current_downfall.enable_lightning and math.random(1,2) == 1 then
+		local time = math.floor(math.random(lightning.interval_low/2,lightning.interval_low))
+		minetest.after(time, lightning.strike)
+	end
 end
 
 minetest.register_globalstep(function()
 	if weather.type=="none" then
-		for id,_ in pairs(weather_mod.registered_downfalls) do
+		for id,el in pairs(weather_mod.registered_downfalls) do
 			if math.random(1, 50000) == 1 then
 				weather.wind = {}
 				weather.wind.x = math.random(0,10)
 				weather.wind.y = 0
 				weather.wind.z = math.random(0,10)
 				weather.type = id
+				weather_mod.handle_lightning()
 			end
 		end
 	else
 		if math.random(1, 10000) == 1 then
 			weather.type = "none"
+			lightning.auto = false
 		end
 	end
-	local current_downfall
-	for id,el in pairs(weather_mod.registered_downfalls) do
-		if weather.type == id then
-			current_downfall = el
-			break
-		end
-	end
+	local current_downfall = weather_mod.registered_downfalls[weather.type]
 	if current_downfall==nil then return end
 	for _, player in ipairs(minetest.get_connected_players()) do
 		local ppos = player:getpos()
 
-		-- Make sure player is not in a cave/house...
-		if minetest.env:get_node_light(ppos, 0.5) ~= 15 then return end
-
 		local wind_pos = vector.multiply(weather.wind,-1)
 
 		local minp = vector.add(vector.add(ppos, current_downfall.min_pos),wind_pos)
@@ -104,7 +114,8 @@ minetest.register_globalstep(function()
 			minacc=acc, maxacc=acc,
 			minexptime=exp, maxexptime=exp,
 			minsize=current_downfall.size, maxsize=current_downfall.size,
-			collisiondetection=false, vertical=true,
+			collisiondetection=true, collision_removal=true,
+			vertical=true,
 			texture=current_downfall.texture, player=player:get_player_name()})
 	end
 end)
\ No newline at end of file
diff --git a/weather/command.lua b/weather/command.lua
index f1a8734..6900072 100644
--- a/weather/command.lua
+++ b/weather/command.lua
@@ -18,6 +18,7 @@ minetest.register_chatcommand("setweather", {
 			minetest.chat_send_player(name, "avalible weather types: "..types)
 		else
 			weather.type = param
+			weather_mod.handle_lightning()
 		end
 	end
 })
diff --git a/weather/depends.txt b/weather/depends.txt
new file mode 100644
index 0000000..b129625
--- /dev/null
+++ b/weather/depends.txt
@@ -0,0 +1 @@
+lightning?
\ No newline at end of file
diff --git a/weather/init.lua b/weather/init.lua
index 861051b..bfd61aa 100644
--- a/weather/init.lua
+++ b/weather/init.lua
@@ -34,3 +34,5 @@ dofile(weather_mod.modpath.."/api.lua")
 dofile(weather_mod.modpath.."/rain.lua")
 dofile(weather_mod.modpath.."/snow.lua")
 dofile(weather_mod.modpath.."/command.lua")
+
+weather_mod.handle_lightning()
diff --git a/weather/rain.lua b/weather/rain.lua
index abfda27..1a187bf 100644
--- a/weather/rain.lua
+++ b/weather/rain.lua
@@ -7,4 +7,5 @@ weather_mod.register_downfall("weather:rain",{
 	exptime=0.8,
 	size=25,
 	texture="weather_rain.png",
+	enable_lightning=true,
 })