allow to use item slot to describe stack for preconditions

fs_edit_general.lua

@@ -216,27 +216,51 @@ yl_speak_up.input_fs_edit_option_related = function(player, formname, fields,
 	-- are we talking about an inventory?
 	-- (inventory only applies to preconditions; not effects)
 	local data = yl_speak_up.speak_to[pname][ tmp_data_cache ]
-	if(fields.inv_stack_name and fields.inv_stack_name ~= ""
+	if(((fields.inv_stack_name and fields.inv_stack_name ~= "")
+	  or (fields.store_item_name and fields.store_item_name ~= ""))
 	  and id_prefix == "p_"
 	  and data and data.what and data.what >= 5 and data.what <= 6) then
-		local parts = fields.inv_stack_name:split(" ")
-		local size = 1
-		if(parts and #parts > 1) then
-			size = tonumber(parts[2])
-			if(not(size) or size < 1) then
-				size = 1
+		local wanted = ""
+		local wanted_name = ""
+		if(not(fields.store_item_name)) then
+			local parts = fields.inv_stack_name:split(" ")
+			local size = 1
+			if(parts and #parts > 1) then
+				size = tonumber(parts[2])
+				if(not(size) or size < 1) then
+					size = 1
+				end
 			end
+			wanted = parts[1].." "..tostring(size)
+			wanted_name = parts[1]
+		else
+			local trade_inv = minetest.get_inventory({type="detached",
+						name="yl_speak_up_player_"..pname})
+			if(not(trade_inv) or trade_inv:is_empty("npc_wants", 1)) then
+				-- show error message
+				yl_speak_up.show_fs(player, "msg", {
+					input_to = "yl_speak_up:"..formspec_input_to,
+					formspec = "size[8,2]"..
+						"label[0.2,0.0;Please put an item(stack) into the slot "..
+							"next to the\n\"Store\" button first!]"..
+						"button[1.5,1.5;2,0.9;back_from_error_msg;Back]"})
+				return
+			end
+			local stack = trade_inv:get_stack("npc_wants", 1)
+			wanted = stack:get_name().." "..stack:get_count()
+			wanted_name = stack:get_name()
 		end
 		-- does the item exist?
-		if(minetest.registered_items[ parts[1] ]) then
-			data.inv_stack_name = parts[1].." "..tostring(size)
+		if(minetest.registered_items[ wanted_name ]) then
+			data.inv_stack_name = wanted
+			fields.inv_stack_name = wanted
 		else
 			-- show error message
 			yl_speak_up.show_fs(player, "msg", {
 				input_to = "yl_speak_up:"..formspec_input_to,
 				formspec = "size[8,2]"..
 					"label[0.2,0.5;Error: \""..
-					minetest.formspec_escape(fields.inv_stack_name)..
+					minetest.formspec_escape(wanted)..
 					"\" is not a valid item(stack).]"..
 					"button[1.5,1.5;2,0.9;back_from_error_msg;Back]"})
 			return
@@ -665,7 +689,7 @@ yl_speak_up.input_fs_edit_option_related = function(player, formname, fields,
 
 	-- select a general direction/type first
 	-- but *not* when enter was pressed (enter sends them all)
-	if(fields.select_what and not(fields.key_enter)) then
+	if(fields.select_what and not(fields.key_enter) and not(fields.store_item_name)) then
 		local nr = table.indexof(check_what, fields.select_what)
 		yl_speak_up.speak_to[pname][ tmp_data_cache ] = { what = nr }
 	end
@@ -728,6 +752,7 @@ yl_speak_up.input_fs_edit_option_related = function(player, formname, fields,
 	  or fields.select_on_failure
 	  or fields.select_on_action_failure
 	  or fields.back_from_error_msg
+	  or fields.store_item_name
 	  or was_changed
 	  or fields.key_enter
 	  or fields.quit
@@ -946,7 +971,7 @@ yl_speak_up.get_fs_edit_option_related = function(player, table_click_result,
 
 	if(id_prefix ~= "a_") then
 		formspec = formspec..
-			"label[1,9.0;If you are unsure if your setup of pre(C)onditions and (Ef)fects "..
+			"label[1,10.5;If you are unsure if your setup of pre(C)onditions and (Ef)fects "..
 				"works as intended,\ntype \"/npc_talk_debug "..tostring(n_id).."\" "..
 				"in chat in order to enter debug mode. You can leave it with "..
 				"\"/npc_talk_debug off\".]"
@@ -1096,15 +1121,20 @@ yl_speak_up.get_fs_edit_option_related = function(player, table_click_result,
 			save_button = ""
 		end
 		formspec = formspec..
-			"label[0.2,3.3;The following shall be true about the inventory:]"..
-			"dropdown[4.0,3.5;16.0,0.6;select_inv;"..
+			"label[0.2,3.0;The following shall be true about the inventory:]"..
+			"dropdown[4.0,3.2;16.0,0.6;select_inv;"..
 				table.concat(check_inv, ",")..";"..
 				tostring(data.inv)..";]"..
-			"label[0.2,4.5;Name of the item(stack):]"..
-			"field[4.0,4.3;16.0,0.6;inv_stack_name;;"..(data.inv_stack_name or "").."]"..
+			"label[0.2,4.2;Name of the item(stack):]"..
+			"field[4.0,4.0;16.0,0.6;inv_stack_name;;"..(data.inv_stack_name or "").."]"..
 			"tooltip[inv_stack_name;Enter name of the block and amount.\n"..
 				"Example: \"default:apple 3\" for three apples,\n"..
-				"         \"farming:bread\" for a bread.]"
+				"         \"farming:bread\" for a bread.]"..
+			"label[0.2,5.7;Or put the item in here\nand click on \"Store\":]"..
+			"button[5.5,5.5;1.5,0.9;store_item_name;Store]"..
+			"list[detached:yl_speak_up_player_"..pname..";npc_wants;4.0,5.5;1,1;]"..
+			"label[8,4.9;Your inventory:]"..
+			"list[current_player;main;8,5.3;8,4;]"
 
 	-- "NPC crafts something", -- 4
 	-- (craft - only for effects - not for preconditions)