From 987cc5a6a425b1f9bcd9000608dc389a45c675a1 Mon Sep 17 00:00:00 2001
From: you <ovvv@web.de>
Date: Mon, 05 Jun 2017 16:51:59 +0200
Subject: [PATCH] Add api documentation (#361)

---
 technic/machines/MV/wind_mill.lua |   26 +++++++++++++++++---------
 1 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/technic/machines/MV/wind_mill.lua b/technic/machines/MV/wind_mill.lua
index 4d63ddc..28a075d 100644
--- a/technic/machines/MV/wind_mill.lua
+++ b/technic/machines/MV/wind_mill.lua
@@ -15,7 +15,7 @@
 	recipe = {
 		{'',                           'technic:motor',              ''},
 		{'technic:carbon_steel_ingot', 'technic:carbon_steel_block', 'technic:carbon_steel_ingot'},
-		{'',                           'technic:mv_cable0',          ''},
+		{'',                           'technic:mv_cable',           ''},
 	}
 })
 
@@ -33,8 +33,15 @@
 	if pos.y < 30 then
 		return false
 	end
+	pos = {x=pos.x, y=pos.y, z=pos.z}
 	for i = 1, 20 do
-		local node = minetest.get_node({x=pos.x, y=pos.y-i, z=pos.z})
+		pos.y = pos.y - 1
+		local node = minetest.get_node_or_nil(pos)
+		if not node then
+			-- we reached CONTENT_IGNORE, we can assume, that nothing changed
+			-- as the user will have to load the block to change it
+			return
+		end
 		if node.name ~= "technic:wind_mill_frame" then
 			return false
 		end
@@ -45,24 +52,25 @@
 local run = function(pos, node)
 	local meta = minetest.get_meta(pos)
 	local machine_name = S("Wind %s Generator"):format("MV")
-	local power = math.min(pos.y * 100, 5000)
 
-	if not check_wind_mill(pos) then
+	local check = check_wind_mill(pos)
+	if check == false then
 		meta:set_int("MV_EU_supply", 0)
 		meta:set_string("infotext", S("%s Improperly Placed"):format(machine_name))
-		return
-	else
+	elseif check == true then
+		local power = math.min(pos.y * 100, 5000)
 		meta:set_int("MV_EU_supply", power)
+		meta:set_string("infotext", S("@1 (@2 EU)", machine_name, technic.pretty_num(power)))
 	end
-
-	meta:set_string("infotext", machine_name.." ("..power.."EU)")
+	-- check == nil: assume nothing has changed
 end
 
 minetest.register_node("technic:wind_mill", {
 	description = S("Wind %s Generator"):format("MV"),
 	tiles = {"technic_carbon_steel_block.png"},
 	paramtype2 = "facedir",
-	groups = {cracky=1, technic_machine=1},
+	groups = {cracky=1, technic_machine=1, technic_mv=1},
+	connect_sides = {"top", "bottom", "back", "left", "right"},
 	sounds = default.node_sound_stone_defaults(),
 	drawtype = "nodebox",
 	paramtype = "light",

--
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