added d_got_item dialog for accepting items given from player to npc

fs_alternate_text.lua

@@ -340,6 +340,10 @@ yl_speak_up.show_colored_dialog_text = function(dialog, data, d_id, hypertext_po
 	if(dialog and dialog.n_dialogs and dialog.n_dialogs[ d_id ]) then
 		text = dialog.n_dialogs[ d_id ].d_text
 	end
+	if(d_id == "d_got_item") then
+		color = "777777"
+		text = "[This dialog shall only have automatic options. The text is therefore irrelevant.]"
+	end
 	if(data and data.alternate_text and data.alternate_text ~= "") then
 		add_info_alternate_text = alternate_label_text
 		-- replace $TEXT$ with the normal dialog text and make the new text yellow

fs_edit_options_dialog.lua

@@ -194,7 +194,14 @@ yl_speak_up.get_fs_edit_option_dialog = function(player, n_id, d_id, o_id, calle
 		"dropdown[16.0,-0.4;5.3,0.7;option_autoanswer;"..
 			"by clicking on it,automaticly;"..tostring(autoanswer+1)..";]"
 			-- (automaticly *by fulfilling the prerequirements*)
-	if(autoanswer == 0) then
+	if(d_id == "d_got_item") then
+		autoanswer = 1
+		d_option.o_autoanswer = 1
+		answer_text =
+			"container[0.0,7.3]"..
+			"label[0.2,0.0;..this option will be selected automaticly.]"
+	end
+	if(autoanswer == 0 and d_id ~= "d_got_item") then
 		answer_text = answer_text..
 		"label[1.2,0.8;A:]"..
 		"field[1.7,0.3;19.6,0.9;text_option_"..minetest.formspec_escape(o_id)..";;"..

functions.lua

@@ -63,6 +63,9 @@ end
 --###
 
 yl_speak_up.get_number_from_id = function(any_id)
+    if(any_id == "d_got_item") then
+        return "0"
+    end
     return string.split(any_id, "_")[2]
 end
 
@@ -634,6 +637,25 @@ yl_speak_up.get_fs_talkdialog = function(player, n_id, d_id, alternate_text, rec
             end
         end
 
+	-- add a "I want to give you something" button to the first dialog if the NPC accepts items
+	if(active_dialog and active_dialog.d_sort and tonumber(active_dialog.d_sort) == 0) then
+		local offer_item_add_text = ""
+		if(edit_mode) then
+			offer_item_add_text = minetest.formspec_escape("[dialog d_got_item] -> ")
+		end
+		-- show this in edit mode and when the NPC actually accepts items
+		if(edit_mode or dialog.n_dialogs["d_got_item"]) then
+		        h = h + 1
+			table.insert(formspec, "button[0.5," .. h .. ";53.8,0.9;player_offers_item;]")
+			table.insert(formspec, "tooltip[player_offers_item;"..
+				"If you want to give something (items) to this NPC\n"..
+				"- either because he requested it or as a present -\n"..
+				"click here. The NPC will return items he doesn't want.]")
+			table.insert(formspec, "label[0.7,"..(h+0.45)..";"..offer_item_add_text..
+				"I want to give you something.]")
+		end
+	end
+
 	-- If in edit mode, add two new menu entries: "add new options" and "end edit mode".
 	if(edit_mode) then
             -- chat option: "Add a new answer/option to this dialog."
@@ -1670,6 +1692,29 @@ yl_speak_up.input_talk = function(player, formname, fields)
 		return
 	end
 
+	-- the player wants to give something to the NPC
+	if(fields.player_offers_item) then
+		if(not(edit_mode)) then
+			-- normal mode: take the item the player wants to offer
+			yl_speak_up.show_fs(player, "player_offers_item", nil)
+		else
+			local dialog = yl_speak_up.speak_to[pname].dialog
+			local future_d_id = "d_got_item"
+			-- make sure this dialog exists; create if needed
+			if(not(dialog.n_dialogs[ future_d_id ])) then
+				dialog.n_dialogs[future_d_id] = {
+					d_id = future_d_id,
+					d_type = "text",
+					d_text = "",
+					d_sort = next_id
+				}
+			end
+			-- in edit mode: allow to edit the options
+			yl_speak_up.show_fs(player, "talk", {n_id = n_id, d_id = future_d_id})
+		end
+		return
+	end
+
         for k, v in pairs(fields) do
             local s = string.split(k, "_")
 

init.lua

@@ -45,6 +45,8 @@ dofile(modpath .. "fs_edit_effects.lua")
 dofile(modpath .. "fs_edit_options_dialog.lua")
 -- set name, description and owner (owner only with npc_talk_master priv)
 dofile(modpath .. "fs_initial_config.lua")
+-- inspect and accept items the player gave to the NPC
+dofile(modpath .. "fs_player_offers_item.lua")
 -- inventory management, trading and handling of quest items:
 dofile(modpath .. "inventory.lua")
 -- trade one item(stack) against one other item(stack)

show_fs.lua

@@ -30,6 +30,10 @@ minetest.register_on_player_receive_fields( function(player, formname, fields)
 	elseif formname == "yl_speak_up:trade_list" then
 		yl_speak_up.input_trade_list(player, formname, fields)
 		return true
+	-- handled in fs_player_offers_item.lua
+	elseif formname == "yl_speak_up:player_offers_item" then
+		yl_speak_up.input_player_offers_item(player, formname, fields)
+		return true
 	-- handled in trade_simple.lua
 	elseif formname == "yl_speak_up:do_trade_simple" then
 		yl_speak_up.input_do_trade_simple(player, formname, fields)
@@ -230,6 +234,10 @@ yl_speak_up.show_fs = function(player, fs_name, param)
 		minetest.show_formspec(pname, "yl_speak_up:trade_list",
 			yl_speak_up.get_fs_trade_list(player, param))
 
+	elseif(fs_name == "player_offers_item") then
+		minetest.show_formspec(pname, "yl_speak_up:player_offers_item",
+			yl_speak_up.get_fs_player_offers_item(player, param))
+
 	elseif(fs_name == "trade_simple") then
 		-- the optional parameter param is the trade_id
 		if(not(param) and yl_speak_up.speak_to[pname]) then