add Digtron duplicator block

doc.lua

@@ -207,6 +207,11 @@ end
 
 ---------------------------------------------------------------------
 
+digtron.doc.duplicator_longdesc = S("A device for duplicating an adjacent Digtron using parts from its inventory.")
+digtron.doc.duplicator_usagehelp = S("Place the duplicator block adjacent to a Digtron, and then fill the duplicator's inventory with enough parts to recreate the adjacent Digtron. Then place an empty Digtron crate at the duplicator's output (the side with the black \"+\") and click the \"Duplicate\" button in the duplicator's right-click GUI. If enough parts are available the Digtron will be duplicated and packed into the crate, along with all of its programming but with empty inventories.")
+
+---------------------------------------------------------------------
+
 digtron.doc.structure_longdesc = S("Structural component for a Digtron array")
 digtron.doc.structure_usagehelp = S("These blocks allow otherwise-disconnected sections of digtron blocks to be linked together. They are not usually necessary for simple diggers but more elaborate builder arrays might have builder blocks that can't be placed directly adjacent to other digtron blocks and these blocks can serve to keep them connected to the controller."
 .."\n\n"..

init.lua

@@ -59,6 +59,7 @@ dofile( digtron_modpath .. "/nodes/node_controllers.lua" ) -- controllers
 dofile( digtron_modpath .. "/nodes/node_axle.lua" ) -- Rotation controller
 dofile( digtron_modpath .. "/nodes/node_crate.lua" ) -- Digtron portability support
 dofile( digtron_modpath .. "/nodes/node_item_ejector.lua" ) -- ejects non-building, non-fuel items from inventories
+dofile( digtron_modpath .. "/nodes/node_duplicator.lua" ) -- constructs copies of existing Digtrons
 
 --Technic
 dofile( digtron_modpath .. "/nodes/node_battery_holder.lua" ) -- holds rechargeable batteries from the technic mod

locale/template.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-10-21 22:27-0600\n"
+"POT-Creation-Date: 2017-10-22 19:49-0600\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -746,11 +746,27 @@ msgid ""
 msgstr ""
 
 #: doc.lua:210
-msgid "Structural component for a Digtron array"
+msgid ""
+"A device for duplicating an adjacent Digtron using parts from its inventory."
 msgstr ""
 
 #: doc.lua:211
 msgid ""
+"Place the duplicator block adjacent to a Digtron, and then fill the "
+"duplicator's inventory with enough parts to recreate the adjacent Digtron. "
+"Then place an empty Digtron crate at the duplicator's output (the side with "
+"the black \"+\") and click the \"Duplicate\" button in the duplicator's "
+"right-click GUI. If enough parts are available the Digtron will be "
+"duplicated and packed into the crate, along with all of its programming but "
+"with empty inventories."
+msgstr ""
+
+#: doc.lua:215
+msgid "Structural component for a Digtron array"
+msgstr ""
+
+#: doc.lua:216
+msgid ""
 "These blocks allow otherwise-disconnected sections of digtron blocks to be "
 "linked together. They are not usually necessary for simple diggers but more "
 "elaborate builder arrays might have builder blocks that can't be placed "
@@ -764,11 +780,11 @@ msgid ""
 "you ride your mighty mechanical leviathan through the landscape."
 msgstr ""
 
-#: doc.lua:217
+#: doc.lua:222
 msgid "Digtron light source"
 msgstr ""
 
-#: doc.lua:218
+#: doc.lua:223
 msgid ""
 "A light source that moves along with the digging machine. Convenient if "
 "you're digging a tunnel that you don't intend to outfit with torches or "
@@ -776,53 +792,53 @@ msgid ""
 "protective lens tends to get grimy while burrowing through the earth."
 msgstr ""
 
-#: doc.lua:220
+#: doc.lua:225
 msgid "Digtron panel"
 msgstr ""
 
-#: doc.lua:221
+#: doc.lua:226
 msgid ""
 "A structural panel that can be made part of a Digtron to provide shelter for "
 "an operator, keep sand out of the Digtron's innards, or just to look cool."
 msgstr ""
 
-#: doc.lua:223
+#: doc.lua:228
 msgid "Digtron edge panel"
 msgstr ""
 
-#: doc.lua:224
+#: doc.lua:229
 msgid ""
 "A pair of structural panels that can be made part of a Digtron to provide "
 "shelter for an operator, keep sand out of the Digtron's innards, or just to "
 "look cool."
 msgstr ""
 
-#: doc.lua:226
+#: doc.lua:231
 msgid "Digtron corner panel"
 msgstr ""
 
-#: doc.lua:227
+#: doc.lua:232
 msgid ""
 "A trio of structural panels that can be made part of a Digtron to provide "
 "shelter for an operator, keep sand out of the Digtron's innards, or just to "
 "look cool."
 msgstr ""
 
-#: doc.lua:231
+#: doc.lua:236
 msgid "Digtron"
 msgstr ""
 
-#: doc.lua:232
+#: doc.lua:237
 msgid ""
 "The Digtron system is a set of blocks used to construct tunnel-boring and "
 "construction machines."
 msgstr ""
 
-#: doc.lua:239
+#: doc.lua:244
 msgid "Summary"
 msgstr ""
 
-#: doc.lua:240
+#: doc.lua:245
 msgid ""
 "Digtron blocks can be used to construct highly customizable and modular "
 "tunnel-boring machines, bridge-builders, road-pavers, wall-o-matics, and "
@@ -844,11 +860,11 @@ msgid ""
 "edges and corners don't count."
 msgstr ""
 
-#: doc.lua:253
+#: doc.lua:258
 msgid "Concepts"
 msgstr ""
 
-#: doc.lua:255
+#: doc.lua:260
 msgid ""
 "Several general concepts are important when building more sophisticated "
 "diggers.\n"
@@ -887,11 +903,11 @@ msgid ""
 "when moving in any direction."
 msgstr ""
 
-#: doc.lua:269
+#: doc.lua:274
 msgid "Audio cues"
 msgstr ""
 
-#: doc.lua:271
+#: doc.lua:276
 msgid ""
 "When a digging machine is unable to complete a cycle it will make one of "
 "several noises to indicate what the problem is. It will also set its "
@@ -937,11 +953,11 @@ msgid ""
 "caution when opening the door to clear the obstruction."
 msgstr ""
 
-#: doc.lua:289
+#: doc.lua:294
 msgid "Tips and Tricks"
 msgstr ""
 
-#: doc.lua:291
+#: doc.lua:296
 msgid ""
 "To more easily visualize the operation of a Digtron, imagine that its cycle "
 "of operation follows these steps in order:\n"
@@ -1096,16 +1112,18 @@ msgstr ""
 
 #: nodes\node_builders.lua:39
 #: nodes\node_controllers.lua:106
-#: nodes\node_crate.lua:80
+#: nodes\node_crate.lua:87
 #: nodes\node_diggers.lua:42
+#: nodes\node_duplicator.lua:22
 #: nodes\node_item_ejector.lua:17
 msgid "Help"
 msgstr ""
 
 #: nodes\node_builders.lua:40
 #: nodes\node_controllers.lua:107
-#: nodes\node_crate.lua:81
+#: nodes\node_crate.lua:88
 #: nodes\node_diggers.lua:43
+#: nodes\node_duplicator.lua:23
 #: nodes\node_item_ejector.lua:18
 msgid "Show documentation about this block"
 msgstr ""
@@ -1212,65 +1230,71 @@ msgstr ""
 msgid "Digtron can't be packaged, it contains protected blocks"
 msgstr ""
 
-#: nodes\node_crate.lua:60
+#: nodes\node_crate.lua:32
-#: nodes\node_crate.lua:61
+msgid "No Digtron components adjacent to package"
+msgstr ""
+
+#: nodes\node_crate.lua:67
+#: nodes\node_crate.lua:68
+#: nodes\node_duplicator.lua:172
+#: nodes\node_duplicator.lua:173
 msgid "Crated Digtron"
 msgstr ""
 
-#: nodes\node_crate.lua:73
+#: nodes\node_crate.lua:80
-#: nodes\node_crate.lua:88
+#: nodes\node_crate.lua:95
 msgid "Digtron Name"
 msgstr ""
 
-#: nodes\node_crate.lua:74
+#: nodes\node_crate.lua:81
-#: nodes\node_crate.lua:89
+#: nodes\node_crate.lua:96
 msgid ""
 "Save\n"
 "Title"
 msgstr ""
 
-#: nodes\node_crate.lua:75
+#: nodes\node_crate.lua:82
-#: nodes\node_crate.lua:90
+#: nodes\node_crate.lua:97
 msgid "Saves the title of this Digtron"
 msgstr ""
 
-#: nodes\node_crate.lua:76
+#: nodes\node_crate.lua:83
-#: nodes\node_crate.lua:91
+#: nodes\node_crate.lua:98
 msgid ""
 "Show\n"
 "Blocks"
 msgstr ""
 
-#: nodes\node_crate.lua:77
+#: nodes\node_crate.lua:84
-#: nodes\node_crate.lua:92
+#: nodes\node_crate.lua:99
 msgid "Shows which blocks the packed Digtron will occupy if unpacked"
 msgstr ""
 
-#: nodes\node_crate.lua:78
+#: nodes\node_crate.lua:85
-#: nodes\node_crate.lua:93
+#: nodes\node_crate.lua:100
 msgid "Unpack"
 msgstr ""
 
-#: nodes\node_crate.lua:79
+#: nodes\node_crate.lua:86
-#: nodes\node_crate.lua:94
+#: nodes\node_crate.lua:101
 msgid "Attempts to unpack the Digtron on this location"
 msgstr ""
 
-#: nodes\node_crate.lua:103
+#: nodes\node_crate.lua:110
 msgid "Digtron Crate (Loaded)"
 msgstr ""
 
-#: nodes\node_crate.lua:138
+#: nodes\node_crate.lua:145
 msgid ""
 "Unable to read layout from crate metadata, regrettably this Digtron may be "
 "corrupted or lost."
 msgstr ""
 
-#: nodes\node_crate.lua:169
+#: nodes\node_crate.lua:176
 msgid "Unable to deploy Digtron due to protected blocks in target area"
 msgstr ""
 
-#: nodes\node_crate.lua:175
+#: nodes\node_crate.lua:182
 msgid "Unable to deploy Digtron due to obstruction in target area"
 msgstr ""
 
@@ -1313,6 +1337,43 @@ msgstr ""
 msgid "Digtron Dual Soft Material Digger Head"
 msgstr ""
 
+#: nodes\node_duplicator.lua:10
+msgid "Digtron components"
+msgstr ""
+
+#: nodes\node_duplicator.lua:17
+msgid "Duplicate"
+msgstr ""
+
+#: nodes\node_duplicator.lua:18
+msgid ""
+"Puts a copy of the adjacent Digtron into an empty crate\n"
+"located at the output side of the duplicator,\n"
+"using components from the duplicator's inventory."
+msgstr ""
+
+#: nodes\node_duplicator.lua:27
+msgid "Digtron Duplicator"
+msgstr ""
+
+#: nodes\node_duplicator.lua:99
+msgid "Needs an empty crate in output position to store duplicate"
+msgstr ""
+
+#: nodes\node_duplicator.lua:107
+msgid "Digtron can't be duplicated, it contains protected blocks"
+msgstr ""
+
+#: nodes\node_duplicator.lua:113
+msgid "No Digtron components adjacent to duplicate"
+msgstr ""
+
+#: nodes\node_duplicator.lua:135
+msgid ""
+"Duplicator requires:\n"
+"@1"
+msgstr ""
+
 #: nodes\node_item_ejector.lua:27
 msgid "Eject into world"
 msgstr ""

nodes/node_duplicator.lua

@@ -0,0 +1,178 @@
+-- internationalization boilerplate
+local MP = minetest.get_modpath(minetest.get_current_modname())
+local S, NS = dofile(MP.."/intllib.lua")
+
+local inventory_formspec_string = 
+	"size[9,9.3]" ..
+	default.gui_bg ..
+	default.gui_bg_img ..
+	default.gui_slots ..
+	"label[0,0;" .. S("Digtron components") .. "]" ..
+	"list[current_name;main;0,0.6;8,4;]" ..
+	"list[current_player;main;0,5.15;8,1;]" ..
+	"list[current_player;main;0,6.38;8,3;8]" ..
+	"listring[current_name;main]" ..
+	"listring[current_player;main]" ..
+	default.get_hotbar_bg(0,5.15)..
+	"button_exit[8,3.5;1,1;duplicate;"..S("Duplicate").."]" ..
+	"tooltip[duplicate;" .. S("Puts a copy of the adjacent Digtron into an empty crate\nlocated at the output side of the duplicator,\nusing components from the duplicator's inventory.") .. "]"
+
+if minetest.get_modpath("doc") then
+	inventory_formspec_string = inventory_formspec_string ..
+		"button_exit[8,4.5;1,1;help;"..S("Help").."]" ..
+		"tooltip[help;" .. S("Show documentation about this block") .. "]"
+end
+	
+minetest.register_node("digtron:duplicator", {
+	description = S("Digtron Duplicator"),
+	_doc_items_longdesc = digtron.doc.duplicator_longdesc,
+    _doc_items_usagehelp = digtron.doc.duplicator_usagehelp,
+	groups = {cracky = 3,  oddly_breakable_by_hand=3},
+	sounds = digtron.metal_sounds,
+	tiles = {"digtron_plate.png^(digtron_axel_side.png^[transformR90)",
+		"digtron_plate.png^(digtron_axel_side.png^[transformR270)",
+		"digtron_plate.png^digtron_axel_side.png",
+		"digtron_plate.png^(digtron_axel_side.png^[transformR180)",
+		"digtron_plate.png^digtron_builder.png",
+		"digtron_plate.png",
+	},
+	paramtype = "light",
+	paramtype2= "facedir",
+	is_ground_content = false,	
+	drawtype="nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, 0.3125, 0.3125, 0.5, 0.5, 0.5}, -- FrontFrame_top
+			{-0.5, -0.5, 0.3125, 0.5, -0.3125, 0.5}, -- FrontFrame_bottom
+			{0.3125, -0.3125, 0.3125, 0.5, 0.3125, 0.5}, -- FrontFrame_right
+			{-0.5, -0.3125, 0.3125, -0.3125, 0.3125, 0.5}, -- FrontFrame_left
+			{-0.0625, -0.3125, 0.3125, 0.0625, 0.3125, 0.375}, -- frontcross_vertical
+			{-0.3125, -0.0625, 0.3125, 0.3125, 0.0625, 0.375}, -- frontcross_horizontal
+			{-0.4375, -0.4375, -0.4375, 0.4375, 0.4375, 0.3125}, -- Body
+			{-0.5, -0.3125, -0.5, -0.3125, 0.3125, -0.3125}, -- backframe_vertical
+			{0.3125, -0.3125, -0.5, 0.5, 0.3125, -0.3125}, -- backframe_left
+			{-0.5, 0.3125, -0.5, 0.5, 0.5, -0.3125}, -- backframe_top
+			{-0.5, -0.5, -0.5, 0.5, -0.3125, -0.3125}, -- backframe_bottom
+			{-0.0625, -0.0625, -0.5625, 0.0625, 0.0625, -0.4375}, -- back_probe
+		},
+	},
+	selection_box = {
+	    type = "regular"
+	},
+	
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("formspec", inventory_formspec_string)
+		local inv = meta:get_inventory()
+		inv:set_size("main", 8*4)
+	end,
+	
+	can_dig = function(pos,player)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		return inv:is_empty("main")
+	end,
+	
+	allow_metadata_inventory_put = function(pos, listname, index, stack, player)
+		if minetest.get_item_group(stack:get_name(), "digtron") > 0 then
+			return stack:get_count()
+		else
+			return 0
+		end
+	end,
+	
+	on_receive_fields = function(pos, formname, fields, sender)
+		if fields.help then
+			minetest.after(0.5, doc.show_entry, sender:get_player_name(), "nodes", "digtron:duplicator", true)
+		end
+	
+		if fields.duplicate then
+			local node = minetest.get_node(pos)
+			local meta = minetest.get_meta(pos)
+			local inv = meta:get_inventory()
+			local target_pos = vector.add(pos, minetest.facedir_to_dir(node.param2))
+			local target_node = minetest.get_node(target_pos)
+
+			if target_node.name ~= "digtron:empty_crate" then
+				minetest.sound_play("buzzer", {gain=0.5, pos=pos})
+				meta:set_string("infotext", S("Needs an empty crate in output position to store duplicate"))
+				return
+			end
+			
+			local layout = DigtronLayout.create(pos, sender)
+			
+			if layout.contains_protected_node then
+				minetest.sound_play("buzzer", {gain=0.5, pos=pos})
+				meta:set_string("infotext", S("Digtron can't be duplicated, it contains protected blocks"))
+				return
+			end
+			
+			if #layout.all == 1 then
+				minetest.sound_play("buzzer", {gain=0.5, pos=pos})
+				meta:set_string("infotext", S("No Digtron components adjacent to duplicate"))
+				return
+			end
+			
+			layout.all[1] = {node={name="digtron:empty_crate"}, meta={fields = {}, inventory = {}}, pos={x=pos.x, y=pos.y, z=pos.z}} -- replace the duplicator's image with the empty crate image
+			
+			-- count required nodes, skipping node 1 since it's the crate and we already know it's present in-world
+			local required_count = {}
+			for i = 2, #layout.all do
+				local nodename = layout.all[i].node.name
+				required_count[nodename] = (required_count[nodename] or 0) + 1
+			end
+						
+			-- check that there's enough in the duplicator's inventory
+			local unsatisfied = {}
+			for name, count in pairs(required_count) do
+				if not inv:contains_item("main", ItemStack({name=name, count=count})) then
+					table.insert(unsatisfied, tostring(count) .. " " .. minetest.registered_nodes[name].description)
+				end
+			end			
+			if #unsatisfied > 0 then
+				minetest.sound_play("dingding", {gain=1.0, pos=pos}) -- Insufficient inventory
+				meta:set_string("infotext", S("Duplicator requires:\n@1", table.concat(unsatisfied, "\n")))
+				return
+			end
+			
+			meta:set_string("infotext", "") -- clear infotext, we're good to go.
+		
+			-- deduct nodes from duplicator inventory
+			for name, count in pairs(required_count) do
+				inv:remove_item("main", ItemStack({name=name, count=count}))
+			end
+
+			-- clear inventories of image's nodes			
+			for _, node_image in pairs(layout.inventories) do
+				local main_inventory = node_image.meta.inventory.main
+				for index, _ in pairs(main_inventory) do
+					main_inventory[index] = ItemStack(nil)
+				end
+			end
+			for _, node_image in pairs(layout.fuelstores) do
+				local fuel_inventory = node_image.meta.inventory.fuel
+				for index, _ in pairs(fuel_inventory) do
+					fuel_inventory[index] = ItemStack(nil)
+				end
+			end
+			for _, node_image in pairs(layout.battery_holders) do
+				local battery_inventory = node_image.meta.inventory.batteries
+				for index, _ in pairs(battery_inventory) do
+					battery_inventory[index] = ItemStack(nil)
+				end
+			end
+
+			-- replace empty crate with loaded crate and write image to its metadata
+			local layout_string = layout:serialize()
+			
+			minetest.set_node(target_pos, {name="digtron:loaded_crate", param1=node.param1, param2=node.param2})
+			local target_meta = minetest.get_meta(target_pos)
+			target_meta:set_string("crated_layout", layout_string)
+			target_meta:set_string("title", S("Crated Digtron"))
+			target_meta:set_string("infotext", S("Crated Digtron"))			
+			minetest.sound_play("machine1", {gain=1.0, pos=pos})
+		end
+	end,
+
+})

nodes/recipes.lua

@@ -147,6 +147,15 @@ minetest.register_craft({
 			}
 })
 
+minetest.register_craft({
+	output = "digtron:duplicator",
+	recipe = {
+			{"default:mese_crystal","default:mese_crystal","default:mese_crystal"},
+			{"default:chest","digtron:digtron_core","default:chest"},
+			{"default:mese_crystal","default:mese_crystal","default:mese_crystal"}
+			}
+})
+
 minetest.register_craft({
 	output = "digtron:inventory_ejector",
 	recipe = {