From bb05ff8fd210fc9fac0b521f15e755380e6916d3 Mon Sep 17 00:00:00 2001
From: coil <51716565+coil0@users.noreply.github.com>
Date: Sun, 21 Jul 2019 12:40:57 +0200
Subject: [PATCH] Reject constructor in constructor slot inventories (#505)

---
 technic/machines/MV/wind_mill.lua |   81 +++++++++++++++++++++-------------------
 1 files changed, 43 insertions(+), 38 deletions(-)

diff --git a/technic/machines/MV/wind_mill.lua b/technic/machines/MV/wind_mill.lua
index 1bc8e02..1baf54c 100644
--- a/technic/machines/MV/wind_mill.lua
+++ b/technic/machines/MV/wind_mill.lua
@@ -13,9 +13,9 @@
 minetest.register_craft({
 	output = 'technic:wind_mill',
 	recipe = {
-		{'',                           'technic:motor',              ''},
+		{'',                           'basic_materials:motor',              ''},
 		{'technic:carbon_steel_ingot', 'technic:carbon_steel_block', 'technic:carbon_steel_ingot'},
-		{'',                           'technic:mv_cable0',          ''},
+		{'',                           'technic:mv_cable',           ''},
 	}
 })
 
@@ -29,11 +29,49 @@
 	paramtype = "light",
 })
 
+local function check_wind_mill(pos)
+	if pos.y < 30 then
+		return false
+	end
+	pos = {x=pos.x, y=pos.y, z=pos.z}
+	for i = 1, 20 do
+		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
+	end
+	return true
+end
+
+local run = function(pos, node)
+	local meta = minetest.get_meta(pos)
+	local machine_name = S("Wind %s Generator"):format("MV")
+
+	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))
+	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)", machine_name,
+			technic.EU_string(power)))
+	end
+	-- 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},
+	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",
@@ -50,41 +88,8 @@
 		local meta = minetest.get_meta(pos)
 		meta:set_string("infotext", S("Wind %s Generator"):format("MV"))
 		meta:set_int("MV_EU_supply", 0)
-	end,	
-})
-
-local function check_wind_mill(pos)
-	if pos.y < 30 then
-		return false
-	end
-	for i = 1, 20 do
-		local node = minetest.get_node({x=pos.x, y=pos.y-i, z=pos.z})
-		if node.name ~= "technic:wind_mill_frame" then
-			return false
-		end
-	end
-	return true
-end
-
-minetest.register_abm({
-	nodenames = {"technic:wind_mill"},
-	interval = 1,
-	chance   = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		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
-			meta:set_int("MV_EU_supply", 0)
-			meta:set_string("infotext", S("%s Improperly Placed"):format(machine_name))
-			return
-		else
-			meta:set_int("MV_EU_supply", power)
-		end
-
-		meta:set_string("infotext", machine_name.." ("..power.."EU)")
-	end
+	end,
+	technic_run = run,
 })
 
 technic.register_machine("MV", "technic:wind_mill", technic.producer)

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