1 files changed, 102 insertions, 0 deletions
diff --git a/technic/technic/machines/LV/water_mill.lua b/technic/technic/machines/LV/water_mill.lua
new file mode 100644
index 0000000..9088d1d
--- /dev/null
+++ b/technic/technic/machines/LV/water_mill.lua
@@ -0,0 +1,102 @@
+-- A water mill produces LV EUs by exploiting flowing water across it
+-- It is a LV EU supplyer and fairly low yield (max 120EUs)
+-- It is a little under half as good as the thermal generator.
+
+local S = technic.getter
+
+minetest.register_alias("water_mill", "technic:water_mill")
+
+minetest.register_craft({
+	output = 'technic:water_mill',
+	recipe = {
+		{'technic:marble', 'default:diamond',        'technic:marble'},
+		{'group:wood',     'technic:machine_casing', 'group:wood'},
+		{'technic:marble', 'technic:lv_cable0',      'technic:marble'},
+	}
+})
+
+local function check_node_around_mill(pos)
+	local node = minetest.get_node(pos)
+	if node.name == "default:water_flowing" or
+	   node.name == "default:water_source" then
+		return true
+	end
+	return false
+end
+
+local run = function(pos, node)
+	local meta             = minetest.get_meta(pos)
+	local water_nodes      = 0
+	local lava_nodes       = 0
+	local production_level = 0
+	local eu_supply        = 0
+
+	local positions = {
+		{x=pos.x+1, y=pos.y, z=pos.z},
+		{x=pos.x-1, y=pos.y, z=pos.z},
+		{x=pos.x,   y=pos.y, z=pos.z+1},
+		{x=pos.x,   y=pos.y, z=pos.z-1},
+	}
+
+	for _, p in pairs(positions) do
+		local check = check_node_around_mill(p)
+		if check then
+			water_nodes = water_nodes + 1
+		end
+	end
+
+	production_level = 25 * water_nodes
+	eu_supply = 30 * water_nodes
+
+	if production_level > 0 then
+		meta:set_int("LV_EU_supply", eu_supply)
+	end
+
+	meta:set_string("infotext",
+		S("Hydro %s Generator"):format("LV").." ("..production_level.."%)")
+
+	if production_level > 0 and
+	   minetest.get_node(pos).name == "technic:water_mill" then
+		technic.swap_node (pos, "technic:water_mill_active")
+		meta:set_int("LV_EU_supply", 0)
+		return
+	end
+	if production_level == 0 then
+		technic.swap_node(pos, "technic:water_mill")
+	end
+end
+
+minetest.register_node("technic:water_mill", {
+	description = S("Hydro %s Generator"):format("LV"),
+	tiles = {"technic_water_mill_top.png",  "technic_machine_bottom.png",
+	         "technic_water_mill_side.png", "technic_water_mill_side.png",
+	         "technic_water_mill_side.png", "technic_water_mill_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2, technic_machine=1},
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", S("Hydro %s Generator"):format("LV"))
+		meta:set_int("LV_EU_supply", 0)
+	end,
+	technic_run = run,
+})
+
+minetest.register_node("technic:water_mill_active", {
+	description = S("Hydro %s Generator"):format("LV"),
+	tiles = {"technic_water_mill_top_active.png", "technic_machine_bottom.png",
+	         "technic_water_mill_side.png",       "technic_water_mill_side.png",
+	         "technic_water_mill_side.png",       "technic_water_mill_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2, technic_machine=1, not_in_creative_inventory=1},
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_wood_defaults(),
+	drop = "technic:water_mill",
+	technic_run = run,
+	technic_disabled_machine_name = "technic:water_mill",
+})
+
+technic.register_machine("LV", "technic:water_mill",        technic.producer)
+technic.register_machine("LV", "technic:water_mill_active", technic.producer)
+