From 058baca37b07a6057f27eb7dfdabb283527f09cc Mon Sep 17 00:00:00 2001
From: Sokomine <wegwerf@anarres.dyndns.org>
Date: Sun, 10 Apr 2022 20:43:41 +0200
Subject: [PATCH] added npc_talk_style command

---
 README.md         | 11 +++++++++++
 fs_talkdialog.lua | 49 +++++++++++++++++++++++++++++++++++++----------
 2 files changed, 50 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index 0944928..efa1d94 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,17 @@ This mod allows to set RPG-like texts for NPC where the NPC "says" something
 to the player and the player can reply with a selection of given replies -
 which most of the time lead to the next dialog.
 
+Chat commands
+=============
+
+/npc_talk_style  Allows to select the formspec version:
+                 1: Very rudamentary. Not recommended.
+                 2: Shows additional buttons for up and down.
+                 3: Default (recommended) version.
+
+/npc_talk_debug  Allows to debug dialogs.
+
+
 Terminology
 ===========
 dialog           A text said by the NPC, with diffrent replys the player can
diff --git a/fs_talkdialog.lua b/fs_talkdialog.lua
index 5a0f045..2c41ae8 100644
--- a/fs_talkdialog.lua
+++ b/fs_talkdialog.lua
@@ -481,16 +481,16 @@ yl_speak_up.get_fs_talkdialog = function(player, n_id, d_id, alternate_text, rec
         owner_info = "\n\n(owned by "..minetest.formspec_escape(yl_speak_up.npc_owner[ n_id ])..")"
     end
 
-	local fs_version = 1
-	if formspec_v >= 4 then
-		fs_version = 3
-	elseif formspec_v >= 2 then
-		fs_version = 2
-	else
-		fs_version = 1
-	end
-	-- store which formspec version the player has
-	if(not(yl_speak_up.fs_version[pname])) then
+	local fs_version = yl_speak_up.fs_version[pname]
+	if(not(fs_version)) then
+		if formspec_v >= 4 then
+			fs_version = 3
+		elseif formspec_v >= 2 then
+			fs_version = 2
+		else
+			fs_version = 1
+		end
+		-- store which formspec version the player has
 		yl_speak_up.fs_version[pname] = fs_version
 	end
 	formspec = {
@@ -955,3 +955,32 @@ yl_speak_up.get_fs_talkdialog = function(player, n_id, d_id, alternate_text, rec
 	return table.concat(formspec, "")
 end
 
+-- a chat command for entering and leaving debug mode; needs to be a chat command
+-- because the player may have wandered off from his NPC and get too many messages
+-- without a quick way to get rid of them otherwise
+minetest.register_chatcommand( 'npc_talk_style', {
+	description = "This command sets your formspec version "..
+				"for the yl_speak_up NPC to value <version>.\n"..
+				"  Version 1: For very old clients. Not recommended.\n"..
+				"  Version 2: Adds extra scroll buttons. Perhaps you like this more.\n"..
+				"  Version 3: Default version.",
+	privs = {},
+	func = function(pname, param)
+		if(param and param == "1") then
+			yl_speak_up.fs_version[pname] = 1
+		elseif(param and param == "2") then
+			yl_speak_up.fs_version[pname] = 2
+		elseif(param and param == "3") then
+			yl_speak_up.fs_version[pname] = 3
+		else
+			minetest.chat_send_player(pname, "This command sets your formspec version "..
+				"for the yl_speak_up NPC to value <version>.\n"..
+				"  Version 1: For very old clients. Not recommended.\n"..
+				"  Version 2: Adds extra scroll buttons. Perhaps you like this more.\n"..
+				"  Version 3: Default version.")
+		end
+		minetest.chat_send_player(pname, "Your formspec version for the yl_speak_up NPC "..
+			"has been set to version "..tostring(yl_speak_up.fs_version[pname])..
+			" for this session.")
+	end
+	})