update castles, cottages, digistuff, gloopblocks, locks,

maptools, mesecons, pipeworks, technic, unified inventory,
unified dyes, and xban2

15 files changed, 78 insertions, 36 deletions

diff --git a/technic/doc/api.md b/technic/doc/api.md
index 2e5b6d3..178ab0a 100644
--- a/technic/doc/api.md
+++ b/technic/doc/api.md
@@ -11,9 +11,12 @@ switching station handles the network activity.
 
 Helper functions
 ----------------
+* `technic.EU_string(num)`
+	* Converts num to a human-readable string (see pretty_num)
+	  and adds the `EU` unit
+	* Use this function when showing players energy values
 * `technic.pretty_num(num)`
-	* Converts the number `num` to a human-readable string.
-	* Use this function when showing players power values.
+	* Converts the number `num` to a human-readable string with SI prefixes
 * `technic.swap_node(pos, nodename)`
 	* Same as `mintest.swap_node` but it only changes the nodename.
 	* It uses `minetest.get_node` before swapping to ensure the new nodename
diff --git a/technic/helpers.lua b/technic/helpers.lua
index 5780f27..5963b68 100644
--- a/technic/helpers.lua
+++ b/technic/helpers.lua
@@ -1,23 +1,56 @@
-local digit_sep_esc
-do
-	local sep = technic.config:get("digit_separator")
-	sep = tonumber(sep) and string.char(sep) or sep or " "
-	-- Escape for gsub
-	for magic in ("().%+-*?[^$"):gmatch(".") do
-		if sep == magic then
-			sep = "%"..sep
+local constant_digit_count = technic.config:get("constant_digit_count")
+
+-- converts a number to a readable string with SI prefix, e.g. 10000 → "10 k",
+-- 15 → "15 ", 0.1501 → "150.1 m"
+-- a non-breaking space (U+a0) instead of a usual one is put after number
+-- The precision is 4 digits
+local prefixes = {[-8] = "y", [-7] = "z", [-6] = "a", [-5] = "f", [-4] = "p",
+	[-3] = "n", [-2] = "µ", [-1] = "m", [0] = "",  [1] = "k", [2] = "M",
+	[3] = "G", [4] = "T", [5] = "P", [6] = "E", [7] = "Z", [8] = "Y"}
+function technic.pretty_num(num)
+	-- the small number added is due to floating point inaccuracy
+	local b = math.floor(math.log10(math.abs(num)) +0.000001)
+	local pref_i
+	if b ~= 0 then
+		-- b is decremented by 1 to avoid a single digit with many decimals,
+		-- e.g. instead of 1.021 MEU, 1021 kEU is shown
+		pref_i = math.floor((b - 1) / 3)
+	else
+		-- as special case, avoid showing e.g. 1100 mEU instead of 1.1 EU
+		pref_i = 0
+	end
+	if not prefixes[pref_i] then
+		-- This happens for 0, nan, inf, very big values, etc.
+		if num == 0 then
+			-- handle 0 explicilty to avoid showing "-0"
+			if not constant_digit_count then
+				return "0 "
+			end
+			-- gives 0.000
+			return string.format("%.3f ", 0)
 		end
+		return string.format("%.4g ", num)
 	end
-	digit_sep_esc = sep
+
+	num = num * 10 ^ (-3 * pref_i)
+	if constant_digit_count then
+		local comma_digits_cnt = 3 - (b - 3 * pref_i)
+		return string.format("%." .. comma_digits_cnt .. "f %s",
+			num, prefixes[pref_i])
+	end
+	return string.format("%.4g %s", num, prefixes[pref_i])
 end
 
+-- some unittests
+assert(technic.pretty_num(-0) == "0 ")
+assert(technic.pretty_num(0) == "0 ")
+assert(technic.pretty_num(1234) == "1234 ")
+assert(technic.pretty_num(123456789) == "123.5 M")
 
-function technic.pretty_num(num)
-	local str, k = tostring(num), nil
-	repeat
-		str, k = str:gsub("^(-?%d+)(%d%d%d)", "%1"..digit_sep_esc.."%2")
-	until k == 0
-	return str
+
+-- used to display power values
+function technic.EU_string(num)
+	return technic.pretty_num(num) .. "EU"
 end
 
 
diff --git a/technic/machines/LV/cnc.lua b/technic/machines/LV/cnc.lua
index 58ec6ba..fdfec99 100644
--- a/technic/machines/LV/cnc.lua
+++ b/technic/machines/LV/cnc.lua
@@ -48,7 +48,7 @@ local twosize_products = {
 }
 
 local cnc_formspec =
-	"invsize[9,11;]"..
+	"size[9,11;]"..
 	"label[1,0;"..S("Choose Milling Program:").."]"..
 	"image_button[1,0.5;1,1;technic_cnc_slope.png;slope; ]"..
 	"image_button[2,0.5;1,1;technic_cnc_slope_edge.png;slope_edge; ]"..
diff --git a/technic/machines/LV/solar_panel.lua b/technic/machines/LV/solar_panel.lua
index a06ddb8..c072b13 100644
--- a/technic/machines/LV/solar_panel.lua
+++ b/technic/machines/LV/solar_panel.lua
@@ -35,7 +35,8 @@ local run = function(pos, node)
 		local charge_to_give = math.floor((light + pos1.y) * 3)
 		charge_to_give = math.max(charge_to_give, 0)
 		charge_to_give = math.min(charge_to_give, 200)
-		meta:set_string("infotext", S("@1 Active (@2 EU)", machine_name, technic.pretty_num(charge_to_give)))
+		meta:set_string("infotext", S("@1 Active (@2)", machine_name,
+			technic.EU_string(charge_to_give)))
 		meta:set_int("LV_EU_supply", charge_to_give)
 	else
 		meta:set_string("infotext", S("%s Idle"):format(machine_name))
@@ -54,7 +55,7 @@ minetest.register_node("technic:solar_panel", {
 	active = false,
 	drawtype = "nodebox",
 	paramtype = "light",
-	is_ground_content = true,	
+	is_ground_content = true,
 	node_box = {
 		type = "fixed",
 		fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
diff --git a/technic/machines/MV/tool_workshop.lua b/technic/machines/MV/tool_workshop.lua
index 6679d1d..a220ac0 100644
--- a/technic/machines/MV/tool_workshop.lua
+++ b/technic/machines/MV/tool_workshop.lua
@@ -19,7 +19,7 @@ minetest.register_craft({
 local workshop_demand = {5000, 3500, 2000}
 
 local workshop_formspec =
-	"invsize[8,9;]"..
+	"size[8,9;]"..
 	"list[current_name;src;3,1;1,1;]"..
 	"label[0,0;"..S("%s Tool Workshop"):format("MV").."]"..
 	"list[current_name;upgrade1;1,3;1,1;]"..
diff --git a/technic/machines/MV/wind_mill.lua b/technic/machines/MV/wind_mill.lua
index 28a075d..9df12b9 100644
--- a/technic/machines/MV/wind_mill.lua
+++ b/technic/machines/MV/wind_mill.lua
@@ -60,7 +60,8 @@ local run = function(pos, node)
 	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)))
+		meta:set_string("infotext", S("@1 (@2)", machine_name,
+			technic.EU_string(power)))
 	end
 	-- check == nil: assume nothing has changed
 end
diff --git a/technic/machines/other/constructor.lua b/technic/machines/other/constructor.lua
index 5847fdb..0a62a7c 100644
--- a/technic/machines/other/constructor.lua
+++ b/technic/machines/other/constructor.lua
@@ -99,7 +99,7 @@ local function make_on(mark, length)
 
 		if node.name == "technic:constructor_mk"..mark.."_off" then
 			technic.swap_node(pos, "technic:constructor_mk"..mark.."_on")
-			nodeupdate(pos)
+			minetest.check_for_falling(pos)
 			for i = 1, length do
 				place_pos = vector.add(place_pos, dir)
 				local place_node = minetest.get_node(place_pos)
@@ -113,7 +113,7 @@ local function make_off(mark)
 	return function(pos, node)
 		if node.name == "technic:constructor_mk"..mark.."_on" then
 			technic.swap_node(pos,"technic:constructor_mk"..mark.."_off")
-			nodeupdate(pos)
+			minetest.check_for_falling(pos)
 		end
 	end
 end
diff --git a/technic/machines/other/injector.lua b/technic/machines/other/injector.lua
index b34dd79..4fe78b2 100644
--- a/technic/machines/other/injector.lua
+++ b/technic/machines/other/injector.lua
@@ -55,7 +55,7 @@ minetest.register_craft({
 local function set_injector_formspec(meta)
 	local is_stack = meta:get_string("mode") == "whole stacks"
 	meta:set_string("formspec",
-		"invsize[8,9;]"..
+		"size[8,9;]"..
 		"item_image[0,0;1,1;technic:injector]"..
 		"label[1,0;"..S("Self-Contained Injector").."]"..
 		(is_stack and
diff --git a/technic/machines/power_monitor.lua b/technic/machines/power_monitor.lua
index 4d722a2..7e8b850 100644
--- a/technic/machines/power_monitor.lua
+++ b/technic/machines/power_monitor.lua
@@ -55,7 +55,7 @@ minetest.register_abm({
 			local demand = sw_meta:get_int("demand")
 			meta:set_string("infotext",
 					S("Power Monitor. Supply: @1 Demand: @2",
-					technic.pretty_num(supply), technic.pretty_num(demand)))
+					technic.EU_string(supply), technic.EU_string(demand)))
 		else
 			meta:set_string("infotext",S("Power Monitor Has No Network"))
 		end
diff --git a/technic/machines/register/battery_box.lua b/technic/machines/register/battery_box.lua
index 84e992c..7f25dfd 100644
--- a/technic/machines/register/battery_box.lua
+++ b/technic/machines/register/battery_box.lua
@@ -255,8 +255,9 @@ function technic.register_battery_box(data)
 
 		local charge_percent = math.floor(current_charge / max_charge * 100)
 		meta:set_string("formspec", formspec..add_on_off_buttons(meta, ltier, charge_percent))
-		local infotext = S("@1 Battery Box: @2/@3", tier,
-				technic.pretty_num(current_charge), technic.pretty_num(max_charge))
+		local infotext = S("@1 Battery Box: @2 / @3", tier,
+				technic.EU_string(current_charge),
+				technic.EU_string(max_charge))
 		if eu_input == 0 then
 			infotext = S("%s Idle"):format(infotext)
 		end
diff --git a/technic/machines/register/generator.lua b/technic/machines/register/generator.lua
index 7805bf0..87ef6e7 100644
--- a/technic/machines/register/generator.lua
+++ b/technic/machines/register/generator.lua
@@ -35,7 +35,7 @@ function technic.register_generator(data)
 	for k, v in pairs(groups) do active_groups[k] = v end
 
 	local generator_formspec =
-		"invsize[8,9;]"..
+		"size[8,9;]"..
 		"label[0,0;"..S("Fuel-Fired %s Generator"):format(tier).."]"..
 		"list[current_name;src;3,1;1,1;]"..
 		"image[4,1;1,1;default_furnace_fire_bg.png]"..
diff --git a/technic/machines/register/machine_base.lua b/technic/machines/register/machine_base.lua
index 0c6a6b3..14cf998 100644
--- a/technic/machines/register/machine_base.lua
+++ b/technic/machines/register/machine_base.lua
@@ -44,7 +44,7 @@ function technic.register_base_machine(data)
 	for k, v in pairs(groups) do active_groups[k] = v end
 
 	local formspec =
-		"invsize[8,9;]"..
+		"size[8,9;]"..
 		"list[current_name;src;"..(4-input_size)..",1;"..input_size..",1;]"..
 		"list[current_name;dst;5,1;2,2;]"..
 		"list[current_player;main;0,5;8,4;]"..
diff --git a/technic/machines/register/solar_array.lua b/technic/machines/register/solar_array.lua
index 422bfcf..03f11d9 100644
--- a/technic/machines/register/solar_array.lua
+++ b/technic/machines/register/solar_array.lua
@@ -30,14 +30,15 @@ function technic.register_solar_array(data)
 			local charge_to_give = math.floor((light + pos.y) * data.power)
 			charge_to_give = math.max(charge_to_give, 0)
 			charge_to_give = math.min(charge_to_give, data.power * 50)
-			meta:set_string("infotext", S("@1 Active (@2 EU)", machine_name, technic.pretty_num(charge_to_give)))
+			meta:set_string("infotext", S("@1 Active (@2)", machine_name,
+				technic.EU_string(charge_to_give)))
 			meta:set_int(tier.."_EU_supply", charge_to_give)
 		else
 			meta:set_string("infotext", S("%s Idle"):format(machine_name))
 			meta:set_int(tier.."_EU_supply", 0)
 		end
 	end
-	
+
 	minetest.register_node("technic:solar_array_"..ltier, {
 		tiles = {"technic_"..ltier.."_solar_array_top.png",  "technic_"..ltier.."_solar_array_bottom.png",
 			 "technic_"..ltier.."_solar_array_side.png", "technic_"..ltier.."_solar_array_side.png",
diff --git a/technic/machines/supply_converter.lua b/technic/machines/supply_converter.lua
index 8527bcf..9202c4a 100644
--- a/technic/machines/supply_converter.lua
+++ b/technic/machines/supply_converter.lua
@@ -149,7 +149,9 @@ local run = function(pos, node, run_stage)
 		meta:set_int(from.."_EU_supply", 0)
 		meta:set_int(to.."_EU_demand", 0)
 		meta:set_int(to.."_EU_supply", input * remain)
-		meta:set_string("infotext", S("@1 (@2 @3 -> @4 @5)", machine_name, technic.pretty_num(input), from, technic.pretty_num(input * remain), to))
+		meta:set_string("infotext", S("@1 (@2 @3 -> @4 @5)", machine_name,
+			technic.EU_string(input), from,
+			technic.EU_string(input * remain), to))
 	else
 		meta:set_string("infotext", S("%s Has Bad Cabling"):format(machine_name))
 		if to then
diff --git a/technic/machines/switching_station.lua b/technic/machines/switching_station.lua
index 21d394b..d645847 100644
--- a/technic/machines/switching_station.lua
+++ b/technic/machines/switching_station.lua
@@ -361,9 +361,9 @@ minetest.register_abm({
 		end
 		--dprint("Total BA demand:"..BA_eu_demand)
 
-		meta:set_string("infotext",
-				S("@1. Supply: @2 Demand: @3",
-				machine_name, technic.pretty_num(PR_eu_supply), technic.pretty_num(RE_eu_demand)))
+		meta:set_string("infotext", S("@1. Supply: @2 Demand: @3",
+				machine_name, technic.EU_string(PR_eu_supply),
+				technic.EU_string(RE_eu_demand)))
 
 		-- If mesecon signal and power supply or demand changed then
 		-- send them via digilines.