From 33647ef72dba244388263189c510a26e79a01399 Mon Sep 17 00:00:00 2001
From: Och Noe <och_noe@forksworld.de>
Date: Thu, 20 May 2021 03:16:13 +0200
Subject: new command:  .day   teleport to a place and automatically return

---
 init.lua | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 63 insertions(+), 4 deletions(-)

diff --git a/init.lua b/init.lua
index 51f1021..c83fa29 100644
--- a/init.lua
+++ b/init.lua
@@ -19,6 +19,8 @@ local mod_storage = minetest.get_mod_storage()
 
 local search_delta_default = 10
 
+local daydelay_default = 5
+
 --
 --
 -- local functions
@@ -309,11 +311,64 @@ local function calc_distance(wp)
       rg = l1 .. "\n" .. l2
    end
 
-
    return true,rg
 end
 
 
+local function teleport_day_back(x,y,z)
+   minetest.run_server_chatcommand('teleport', 
+				   string.format("%d %d %d",x,y,z)
+				)
+   return
+end
+
+
+local function teleport_day(params)
+   local daypos = mod_storage:get_string('daypos')
+   local daydelay = mod_storage:get_string('daydelay')
+   daypos = minetest.deserialize(daypos) or ""
+   daydelay = (daydelay and tonumber(minetest.deserialize(daydelay))) or 
+               daydelay_default
+
+   if not params or
+      params == "" 
+   then
+      -- no parameter - execute the function
+      if daypos == "" then
+	 minetest.display_chat_message("no saved position")	 
+	 return
+      end
+      minetest.run_server_chatcommand('teleport', tostring_point(daypos))
+      local point = minetest.localplayer:get_pos()
+      minetest.after(daydelay,teleport_day_back,point.x,point.y,point.z)
+      return
+   end
+
+   if params == "show" then
+      minetest.display_chat_message("position: "..tostring_point(daypos)..
+				    "   delay:"..daydelay)
+      return
+   end
+   if params == "setpos" then
+      local point = minetest.localplayer:get_pos()
+      mod_storage:set_string('daypos', minetest.serialize(tostring_point(point)))
+      minetest.display_chat_message("position saved")
+      return
+   end
+   local sdp = string.find(params,"setdelay ",1,false)
+   if sdp and sdp == 1 then
+      local newtime = tonumber(params:sub(10,16))
+      if newtime and newtime>0 then
+	 mod_storage:set_string('daydelay', minetest.serialize(newtime))
+	 minetest.display_chat_message("delay saved")	 
+      end
+      return
+   end
+   -- wrong parameters - what now?
+   return
+end
+
+
 --
 --
 -- chat commands
@@ -522,7 +577,7 @@ minetest.register_chatcommand('wp_grep', {
     end),
 })
 
-
+--  wp_fgrep   derived from wp_grep by erstazi
 minetest.register_chatcommand('wp_fgrep', {
     params = '<name>',
     description = 'lists matching waypoints',
@@ -545,5 +600,9 @@ minetest.register_chatcommand('wp_fgrep', {
 })
 
 
-
-
+minetest.register_chatcommand('day', {
+	params = '[show|setpos|setdelay <number>]',
+	description = 'teleports to the day button and return after a few seconds ',
+	func = teleport_day,
+     }
+  )
-- 
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