Allow direct microblock input (#212)

Co-authored-by: Evgeniy <evgenuel@gmail.com>

.luacheckrc

@@ -31,4 +31,5 @@ read_globals = {
 	"HasOwner",
 	"getLastOwner",
 	"GetNodeOwnerName",
+	"place_rotated",
 }

circular_saw.lua

@@ -20,6 +20,9 @@ circular_saw.known_stairs = setmetatable({}, {
 -- This is populated by stairsplus:register_all:
 circular_saw.known_nodes = {}
 
+-- This is populated by stairsplus:register_micro:
+circular_saw.microblocks = {}
+
 -- How many microblocks does this shape at the output inventory cost:
 -- It may cause slight loss, but no gain.
 circular_saw.cost_in_microblocks = {
@@ -137,10 +140,13 @@ function circular_saw:reset(pos)
 
 	inv:set_list("input",  {})
 	inv:set_list("micro",  {})
-	inv:set_list("output", {})
 
-	meta:set_int("anz", 0)
-	meta:set_string("infotext", S("Circular Saw is empty") .. owned_by)
+	local microblockcount = inv:get_stack("micro",1):get_count()
+	meta:set_int("anz", microblockcount)
+	if microblockcount == 0 then
+		meta:set_string("infotext", S("Circular Saw is empty") .. owned_by)
+		inv:set_list("output", {})
+	end
 end
 
 
@@ -161,19 +167,21 @@ function circular_saw:update_inventory(pos, amount)
 	end
 
 	local stack = inv:get_stack("input",  1)
-	-- At least one "normal" block is necessary to see what kind of stairs are requested.
-	if stack:is_empty() then
-		-- Any microblocks not taken out yet are now lost.
-		-- (covers material loss in the machine)
+	local microstack = inv:get_stack("micro",1)
+
+	-- At least one (micro)block is necessary to see what kind of stairs are requested.
+	if stack:is_empty() and microstack:is_empty() then
+
 		self:reset(pos)
 		return
 
 	end
-	local node_name = stack:get_name() or ""
+
+	local node_name = circular_saw.microblocks[microstack:get_name()] or stack:get_name() or ""
 	local node_def = stack:get_definition()
 	local name_parts = circular_saw.known_nodes[node_name] or ""
-	local modname  = name_parts[1] or ""
-	local material = name_parts[2] or ""
+	local modname  = name_parts[1]
+	local material = name_parts[2]
 	local owned_by = meta:get_string("owner")
 
 	if owned_by and owned_by ~= "" then
@@ -197,6 +205,7 @@ function circular_saw:update_inventory(pos, amount)
 	inv:set_list("micro", {
 		modname .. ":micro_" .. material .. " " .. (amount % 8)
 	})
+
 	-- Display:
 	inv:set_list("output",
 		self:get_output_inv(modname, material, amount,
@@ -233,11 +242,11 @@ function circular_saw.allow_metadata_inventory_move(
 end
 
 
--- Only input- and recycle-slot are intended as input slots:
+-- Only input- and recycle-slot (and microblock slot when empty) are intended as input slots:
 function circular_saw.allow_metadata_inventory_put(
 		pos, listname, index, stack, player)
 	-- The player is not allowed to put something in there:
-	if listname == "output" or listname == "micro" then
+	if listname == "output" then
 		return 0
 	end
 
@@ -285,6 +294,16 @@ function circular_saw.allow_metadata_inventory_put(
 		end
 		return 0
 	end
+
+	if listname == "micro" then
+		if not (inv:is_empty("input") and inv:is_empty("micro")) then return 0 end
+		for name, t in pairs(circular_saw.microblocks) do
+			if name == stackname and inv:room_for_item("input", stack) then
+				return count
+			end
+		end
+		return 0
+	end
 end
 
 -- Taking is allowed from all slots (even the internal microblock slot).
@@ -304,6 +323,8 @@ function circular_saw.on_metadata_inventory_put(
 	if listname == "input" then
 		-- Each new block is worth 8 microblocks:
 		circular_saw:update_inventory(pos, 8 * count)
+	elseif listname == "micro" then
+		circular_saw:update_inventory(pos, count)
 	elseif listname == "recycle" then
 		-- Lets look which shape this represents:
 		local cost = circular_saw:get_cost(inv, stackname)
@@ -354,7 +375,6 @@ function circular_saw.on_metadata_inventory_take(
 		-- We do know how much each block at each position costs:
 		local cost = circular_saw.cost_in_microblocks[index]
 				* stack:get_count()
-
 		circular_saw:update_inventory(pos, -cost)
 	elseif listname == "micro" then
 		-- Each microblock costs 1 microblock:

mod.conf

@@ -1,4 +1,4 @@
 name = moreblocks
 description = Adds various miscellaneous blocks to the game.
-optional_depends = default,stairs,farming,wool,basic_materials
+optional_depends = default,stairs,farming,wool,basic_materials,place_rotated
 min_minetest_version = 5.0.0

stairsplus/common.lua

@@ -146,11 +146,14 @@ stairsplus.register_single = function(category, alternate, info, modname, subnam
 
 	-- Darken light sources slightly to make up for their smaller visual size
 	def.light_source = math.max(0, (def.light_source or 0) - 1)
-
-	def.on_place = stairsplus.rotate_node_aux
 	def.groups = stairsplus:prepare_groups(fields.groups)
 
 	if category == "slab" then
+		if minetest.global_exists("place_rotated") then
+			def.on_place = place_rotated.slab
+		else
+			def.on_place = stairsplus.rotate_node_aux
+		end
 		if type(info) ~= "table" then
 			def.node_box = {
 				type = "fixed",
@@ -165,6 +168,7 @@ stairsplus.register_single = function(category, alternate, info, modname, subnam
 			def.description = desc_base .. alternate:gsub("_", " "):gsub("(%a)(%S*)", function(a, b) return a:upper() .. b end)
 		end
 	else
+		def.on_place = stairsplus.rotate_node_aux
 		def.description = desc_base
 		if category == "slope" then
 			def.drawtype = "mesh"

stairsplus/custom.lua

@@ -94,4 +94,5 @@ function stairsplus:register_custom_subset(subset, modname, subname, recipeitem,
 	end
 
 	circular_saw.known_nodes[recipeitem] = {modname, subname}
+	circular_saw.microblocks[modname.. ":micro_" .. subname] = recipeitem
 end

stairsplus/microblocks.lua

@@ -40,4 +40,5 @@ function stairsplus:register_micro(modname, subname, recipeitem, fields)
 	end
 
 	circular_saw.known_nodes[recipeitem] = {modname, subname}
+	circular_saw.microblocks[modname.. ":micro_" .. subname] = recipeitem
 end