From 6b1d222d1d19cd621b8e4d39bf444798a6cef7fa Mon Sep 17 00:00:00 2001
From: Evert Prants <imsonotsleepy@gmail.com>
Date: Mon, 28 Jan 2019 13:43:07 +0200
Subject: [PATCH] A crude wooden windmill

---
 elepower_dynamics/crafting.lua                |   2 +-
 elepower_machines/crafting.lua                |  28 +
 elepower_machines/craftitems.lua              |   7 +
 .../machines/bases/fluid_generator.lua        |   3 +
 .../machines/bases/generator.lua              |   6 +
 elepower_machines/machines/init.lua           |   1 +
 elepower_machines/machines/wind_turbine.lua   | 193 +++++++
 .../models/elepower_wind_blades.obj           | 507 ++++++++++++++++++
 .../textures/elepower_wind_turbine_blade.png  | Bin 0 -> 717 bytes
 .../textures/elepower_wind_turbine_blades.png | Bin 0 -> 361 bytes
 .../textures/elepower_wind_turbine_face.png   | Bin 0 -> 618 bytes
 elepower_papi/machine.lua                     |   5 +-
 12 files changed, 750 insertions(+), 2 deletions(-)
 create mode 100644 elepower_machines/machines/wind_turbine.lua
 create mode 100644 elepower_machines/models/elepower_wind_blades.obj
 create mode 100644 elepower_machines/textures/elepower_wind_turbine_blade.png
 create mode 100644 elepower_machines/textures/elepower_wind_turbine_blades.png
 create mode 100644 elepower_machines/textures/elepower_wind_turbine_face.png

diff --git a/elepower_dynamics/crafting.lua b/elepower_dynamics/crafting.lua
index f58ddb5..b3ac0f1 100644
--- a/elepower_dynamics/crafting.lua
+++ b/elepower_dynamics/crafting.lua
@@ -236,7 +236,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_dynamics:battery 2",
 	recipe = {
-		{"elepower_dynamics:zinc_dust", "elepower_dynamics:wound_copper_coil", "elepower_dynamics:lead_dust"},
+		{"elepower_dynamics:zinc_dust", "elepower_dynamics:graphite_rod", "elepower_dynamics:lead_dust"},
 		{"elepower_dynamics:tin_plate", "default:mese_crystal_fragment", "elepower_dynamics:tin_plate"},
 		{"elepower_dynamics:tin_plate", "default:mese_crystal_fragment", "elepower_dynamics:tin_plate"},
 	}
diff --git a/elepower_machines/crafting.lua b/elepower_machines/crafting.lua
index 24d1d45..3c07a62 100644
--- a/elepower_machines/crafting.lua
+++ b/elepower_machines/crafting.lua
@@ -425,6 +425,24 @@ minetest.register_craft({
 	}
 })
 
+minetest.register_craft({
+	output = "elepower_machines:wind_turbine_blade",
+	recipe = {
+		{"", "default:wood", "default:wood"},
+		{"default:stick", "default:wood", "default:wood"},
+		{"default:stick", "default:stick", ""},
+	}
+})
+
+minetest.register_craft({
+	output = "elepower_machines:wind_turbine_blades",
+	recipe = {
+		{"elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade"},
+		{"elepower_machines:wind_turbine_blade", "default:wood", "elepower_machines:wind_turbine_blade"},
+		{"elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade"},
+	}
+})
+
 -- Nodes
 
 -- Coal-fired Alloy Furnace
@@ -686,3 +704,13 @@ minetest.register_craft({
 		{"elepower_dynamics:electrum_plate", "elepower_machines:opaque_duct_roll", "elepower_dynamics:electrum_plate"},
 	}
 })
+
+-- Wind Turbine
+minetest.register_craft({
+	output = "elepower_machines:wind_turbine",
+	recipe = {
+		{"elepower_dynamics:wound_copper_coil", "elepower_machines:turbine_blades", "elepower_dynamics:wound_copper_coil"},
+		{"elepower_dynamics:steel_plate", "elepower_machines:machine_block", "elepower_dynamics:steel_plate"},
+		{"elepower_dynamics:invar_gear", "elepower_dynamics:steel_plate", "elepower_dynamics:invar_gear"},
+	}
+})
diff --git a/elepower_machines/craftitems.lua b/elepower_machines/craftitems.lua
index a644e17..9d84556 100644
--- a/elepower_machines/craftitems.lua
+++ b/elepower_machines/craftitems.lua
@@ -130,3 +130,10 @@ minetest.register_craftitem("elepower_machines:heavy_filter", {
 		return itemstack
 	end
 })
+
+-- Wind turbine
+
+minetest.register_craftitem("elepower_machines:wind_turbine_blade", {
+	description = "Wind Turbine Blade (Wooden)",
+	inventory_image = "elepower_wind_turbine_blade.png",
+})
diff --git a/elepower_machines/machines/bases/fluid_generator.lua b/elepower_machines/machines/bases/fluid_generator.lua
index 108a713..6f0b4b7 100644
--- a/elepower_machines/machines/bases/fluid_generator.lua
+++ b/elepower_machines/machines/bases/fluid_generator.lua
@@ -40,6 +40,9 @@ function ele.register_fluid_generator(nodename, nodedef)
 			ele_provider = 1,
 			oddly_breakable_by_hand = 1,
 		},
+		ele_upgrades = {
+			capacitor = {"capacity"},
+		},
 		tube = false,
 		on_timer = function (pos, elapsed)
 			local refresh  = false
diff --git a/elepower_machines/machines/bases/generator.lua b/elepower_machines/machines/bases/generator.lua
index 13d24c4..918d899 100644
--- a/elepower_machines/machines/bases/generator.lua
+++ b/elepower_machines/machines/bases/generator.lua
@@ -34,6 +34,12 @@ function elepm.register_fuel_generator(nodename, nodedef)
 		nodedef.get_formspec = nil
 	end
 
+	if not nodedef.ele_upgrades then
+		nodedef.ele_upgrades = {
+			capacitor = {"capacity"},
+		}
+	end
+
 	nodedef.on_timer = function (pos, elapsed)
 		local refresh = false
 		local meta     = minetest.get_meta(pos)
diff --git a/elepower_machines/machines/init.lua b/elepower_machines/machines/init.lua
index 3a5c5c5..ab39edf 100644
--- a/elepower_machines/machines/init.lua
+++ b/elepower_machines/machines/init.lua
@@ -9,6 +9,7 @@ dofile(mp .. "generator.lua")
 dofile(mp .. "lava_generator.lua")
 dofile(mp .. "steam_turbine.lua")
 dofile(mp .. "fuel_burner.lua")
+dofile(mp .. "wind_turbine.lua")
 
 -- Storage
 dofile(mp .. "storage.lua")
diff --git a/elepower_machines/machines/wind_turbine.lua b/elepower_machines/machines/wind_turbine.lua
new file mode 100644
index 0000000..f4f18f9
--- /dev/null
+++ b/elepower_machines/machines/wind_turbine.lua
@@ -0,0 +1,193 @@
+
+
+local function get_formspec_default(power, state)
+	return "size[8,8.5]"..
+		default.gui_bg..
+		default.gui_bg_img..
+		default.gui_slots..
+		ele.formspec.power_meter(power)..
+		ele.formspec.state_switcher(7, 0, state)..
+		"list[current_player;main;0,4.25;8,1;]"..
+		"list[current_player;main;0,5.5;8,3;8]"..
+		default.get_hotbar_bg(0, 4.25)
+end
+
+-- Primitive wind checking function
+elepm.wind_height_constant = 100
+function elepm.wind_check(pos)
+	if pos.y < elepm.wind_height_constant then
+		return 0
+	end
+
+	return math.floor(pos.y / elepm.wind_height_constant)
+end
+
+-- A generator that creates power using altitude
+function ele.register_wind_generator(nodename, nodedef)
+	-- Allow for custom formspec
+	local get_formspec = get_formspec_default
+	if nodedef.get_formspec then
+		get_formspec = nodedef.get_formspec
+		nodedef.get_formspec = nil
+	end
+
+	local defaults = {
+		groups = {
+			ele_provider = 1,
+			oddly_breakable_by_hand = 1,
+			wind_generator = 1,
+		},
+		tube = false,
+		paramtype2 = 0,
+		on_timer = function (pos, elapsed)
+			local refresh  = false
+			local meta     = minetest.get_meta(pos)
+			
+			local capacity   = ele.helpers.get_node_property(meta, pos, "capacity")
+			local generation = ele.helpers.get_node_property(meta, pos, "usage")
+			local storage    = ele.helpers.get_node_property(meta, pos, "storage")
+
+			local state = meta:get_int("state")
+			local is_enabled = ele.helpers.state_enabled(meta, pos, state)
+
+			local pow_buffer = {capacity = capacity, storage = storage, usage = 0}
+			local status = "Idle"
+
+			local wind = meta:get_int("wind")
+
+			while true do
+				if not is_enabled then
+					status = "Off"
+					wind = 0
+					break
+				end
+
+				local multiplier = 1
+				local tentpos = vector.subtract(pos, {x=0,y=0,z=1})
+				for i, ob in pairs(minetest.get_objects_inside_radius(tentpos, 0.5)) do
+					if ob:get_luaentity() and ob:get_luaentity().name == "elepower_machines:wind_turbine_blades" then
+						multiplier = 4
+						break
+					end
+				end
+
+				wind = elepm.wind_check(pos) * multiplier
+				if wind == 0 then
+					status = "No wind"
+					break
+				end
+
+				status = "Active"
+				refresh = true
+
+				pow_buffer.usage = wind
+				pow_buffer.storage = pow_buffer.storage + pow_buffer.usage
+				break
+			end
+
+			meta:set_string("formspec", get_formspec(pow_buffer, state))
+			meta:set_string("infotext", ("Wind Turbine %s\n%s"):format(status,
+				ele.capacity_text(capacity, pow_buffer.storage)))
+
+			meta:set_int("storage", pow_buffer.storage)
+			meta:set_int("wind", wind)
+
+			return refresh
+		end,
+		on_construct = function (pos)
+			local meta = minetest.get_meta(pos)
+
+			local capacity = ele.helpers.get_node_property(meta, pos, "capacity")
+			local storage  = ele.helpers.get_node_property(meta, pos, "storage")
+
+			meta:set_string("formspec", get_formspec({capacity = capacity, storage = storage, usage = 0}, 0))
+		end
+	}
+
+	for key,val in pairs(defaults) do
+		if not nodedef[key] then
+			nodedef[key] = val
+		end
+	end
+	
+	ele.register_machine(nodename, nodedef)
+end
+
+ele.register_wind_generator("elepower_machines:wind_turbine", {
+	description = "Wind Turbine\nRequires Wind Turbine Blades",
+	tiles = {
+		"elepower_machine_top.png", "elepower_machine_base.png", "elepower_machine_side.png",
+		"elepower_machine_side.png", "elepower_machine_side.png", "elepower_wind_turbine_face.png",
+	},
+	ele_upgrades = {
+		capacitor = {"capacity"},
+	}
+})
+
+minetest.register_craftitem("elepower_machines:wind_turbine_blades", {
+	description = "Wind Turbine Blades (Wooden)\nSneak Right-Click on the Wind Turbine node to place it",
+	inventory_image = "elepower_wind_turbine_blades.png",
+	on_place = function (itemstack, clicker, pointed_thing)
+		local pos = pointed_thing.under
+		if pointed_thing.type ~= "node" then return itemstack end
+
+		local node = minetest.get_node(pos)
+		if minetest.get_item_group(node.name, "wind_generator") == 0 then
+			return itemstack
+		end
+
+		local place_at = vector.add(pos, {x = 0, y = 0, z = -1})
+		local e = minetest.add_entity(place_at, "elepower_machines:wind_turbine_blades")
+		local ent = e:get_luaentity()
+		ent.controller = pos
+
+		itemstack:take_item(1)
+		return itemstack
+	end
+})
+
+minetest.register_entity("elepower_machines:wind_turbine_blades", {
+	initial_properties = {
+		hp_max   = 10,
+		visual   = "mesh",
+		mesh     = "elepower_wind_blades.obj",
+		physical = true,
+		textures = {"default_wood.png"},
+		backface_culling = false,
+		visual_size = {x = 10, y = 10},
+	},
+	timer = 0,
+	controller = {x = 0, y = 0, z = 0},
+	wind = false,
+	on_step = function (self, dt)
+		if self.wind then
+			local rot = self.object:get_rotation()
+			self.object:set_rotation({x = 0, y = 0, z = rot.z + 0.02 * math.pi})
+		end
+
+		-- Wind check timer
+		self.timer = self.timer + 1
+		if self.timer < 100 then
+			return self
+		end
+		self.timer = 0
+
+		local meta = minetest.get_meta(self.controller)
+		if meta and meta:get_int("wind") > 0 then
+			self.wind = true
+		else
+			self.wind = false
+		end
+	end,
+	on_punch = function (self, puncher, time_from_last_punch, tool_capabilities, dir)
+		local itm = ItemStack("elepower_machines:wind_turbine_blades")
+		if not puncher or puncher == "" or puncher:get_player_name() == "" then return self end
+		local inv = puncher:get_inventory()
+		if inv:room_for_item("main", itm) then
+			inv:add_item("main", itm)
+		else
+			minetest.item_drop(itm, puncher, self.object:get_pos())
+		end
+		self.object:set_hp(0)
+	end
+})
diff --git a/elepower_machines/models/elepower_wind_blades.obj b/elepower_machines/models/elepower_wind_blades.obj
new file mode 100644
index 0000000..50b0c37
--- /dev/null
+++ b/elepower_machines/models/elepower_wind_blades.obj
@@ -0,0 +1,507 @@
+# Blender v2.79 (sub 6) OBJ File: 'wind turbine blades.blend'
+# www.blender.org
+o Cube
+v -1.000000 -1.000000 1.000000
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diff --git a/elepower_machines/textures/elepower_wind_turbine_blade.png b/elepower_machines/textures/elepower_wind_turbine_blade.png
new file mode 100644
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diff --git a/elepower_machines/textures/elepower_wind_turbine_face.png b/elepower_machines/textures/elepower_wind_turbine_face.png
new file mode 100644
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diff --git a/elepower_papi/machine.lua b/elepower_papi/machine.lua
index 61f71d6..4f925d2 100644
--- a/elepower_papi/machine.lua
+++ b/elepower_papi/machine.lua
@@ -486,7 +486,6 @@ function ele.register_machine(nodename, nodedef)
 		ele_usage    = 64,
 		ele_output   = 64,
 		ele_sides    = nil,
-		paramtype2   = "facedir"
 	}
 
 	-- Ensure everything that's required is present
@@ -496,6 +495,10 @@ function ele.register_machine(nodename, nodedef)
 		end
 	end
 
+	if nodedef.paramtype2 ~= 0 or not nodedef.paramtype2 then
+		nodedef.paramtype2 = "facedir"
+	end
+
 	-- Ensure machine group is used properly
 	if not nodedef.groups["ele_conductor"] and not nodedef.groups["ele_machine"] then
 		nodedef.groups["ele_machine"] = 1