Dialogues: added support for custom functions on multi-option dialogues.

Data: dialogues are now Lua tables indexed by numbers

random_data.lua

@@ -11,40 +11,40 @@ npc.data.DIALOGUES = {
 -- Female dialogue options defined by phase
 -- Phase 1
 npc.data.DIALOGUES.female["phase1"] = {
-	{
+	[1] = {
 		text = "Hello there!"
 	},
-	{
+	[2] = {
 		text = "How are you doing?"
 	},
-	{
+	[3] = {
 		text = "Hey, I haven't seen you before!"
 	},
-	{
+	[4] = {
 		text = "Just another day..."
 	},
-	{
+	[5] = {
 		text = "The weather is nice today"
 	},
-	{
+	[6] = {
 		text = "Hello! Have you been to the sea?",
 		responses = {
-			{
+			[1] = {
 				text = "No, never before",
 				action_type = "function",
-				action = function(player_name, item)
+				action = function(self, player_name)
 					minetest.chat_send_player(player_name, "Oh, never? How come! You should."..
 						"\nHere, take this. It will guide you to the sea...")
 				end
 			},
-			{
+			[2] = {
 				text = "Yes, sure",
 				action_type = "dialogue",
 				action = {
 					text = "It's so beautiful, and big, and large, and infinite, and..."
 				}
 			},
-			{
+			[3] = {
 				text = "Of course! And to all the seas in the world!",
 				action_type = "dialogue",
 				action = {
@@ -58,39 +58,39 @@ npc.data.DIALOGUES.female["phase1"] = {
 -- Male dialogue options defined by phase
 -- Phase 1
 npc.data.DIALOGUES.male["phase1"] = {
-	{
+	[1] = {
 		text = "Hello!"
 	},
-	{
+	[2] = {
 		text = "Welcome to our village, stranger."
 	},
-	{
+	[3] = {
 		text = "Just a great day to go to the woods..."
 	},
-	{
+	[4] = {
 		text = "Bah, stone! Useless stuff."
 	},
-	{
+	[5] = {
 		text = "What do you think of this weather?"
 	},
-	{
+    [6] = {
 		text = "Hello! Have you been to the sea?",
 		responses = {
-			{
+			[1] = {
 				text = "No, never before",
 				action_type = "function",
-				action = function(player_name, item)
+				action = function(npc, player_name)
 					minetest.chat_send_player(player_name, "Then you are not worth my time.")
 				end
 			},
-			{
+			[2] = {
 				text = "Yes, sure",
 				action_type = "dialogue",
 				action = {
 					text = "Then you should appreciate it as a great pirate of the seven seas do!"
 				}
 			},
-			{
+			[3] = {
 				text = "Of course! And to all the seas in the world!",
 				action_type = "dialogue",
 				action = {