add notice command

commands.lua

@@ -65,3 +65,52 @@ minetest.register_on_respawnplayer(function(player, pos)
     player:setpos(spawn)
     return true
 end)
+
+-- Commands, originally by Grailtest @0-afflatus
+command = {}
+function command.send_notice(target, text)
+	local player = minetest.get_player_by_name(target)
+	if not player then
+		return false, ("There's no player named '%s'."):format(target)
+	end
+	local fs = { }
+	local lines = { }
+	for i, line in ipairs(text:split("|")) do
+		local lt = { }
+		for j = 1, #line, 40 do
+			table.insert(lt, line:sub(j, j+39))
+		end
+		lines[i] = table.concat(lt, "\n")
+	end
+	text = table.concat(lines, "\n")
+	text = minetest.formspec_escape(text)
+	table.insert(fs, "size[8,4]")
+	--table.insert(fs, "background[0,0;8,4;ui_form_bg.png]")
+	table.insert(fs, "label[1,.2;"..text.."]")
+	table.insert(fs, "button_exit[3,3.2;2,0.5;ok;OK]")
+	fs = table.concat(fs)
+	minetest.after(0.5, function()
+		minetest.show_formspec(target, "notice:notice", fs)
+	end)
+	return true
+end
+
+minetest.register_privilege("notice", "Send notices to players.")
+
+minetest.register_chatcommand("notice", {
+	params = "<player> <text>",
+	privs = { notice=true, },
+	description = "Show a notice to a player.",
+	func = function(name, params)
+		local target, text = params:match("(%S+)%s+(.+)")
+		if not (target and text) then
+			return false, "Usage: /notice <player> <text>"
+		end
+		local ok, err = command.send_notice(target, text)
+		if not ok then
+			return false, err
+		end
+		return true, "Notice sent!"
+	end,
+})
+