minetest-custom-death_formspec/init.lua

local DWP = nil
local DP
local function setdwp()
	if not DWP then
		DWP = core.localplayer:hud_add({
		hud_elem_type = "waypoint",
		name = "DeathPoint",
		number = 0xFF0000,
		world_pos = DP})
		if not DWP then return end
	else
		core.localplayer:hud_change(DWP,'world_pos',DP)
	end
end
core.register_on_death(function()
    DP = core.localplayer:get_pos()
	core.display_chat_message(minetest.colorize("#F00","You died at "..core.pos_to_string(vector.round(DP))))
	core.show_formspec("cdf", "size[4,4.2]"..
		"label[1.45,0;"..fgettext("You died")..
		"]button_exit[1,1;2,0.5;respawn;"..fgettext("Respawn")..
		"]set_focus[ghostmode;true"..
		"]button_exit[1,2;2,0.5;ghostmode;GhostMode"..
		"]button_exit[1,3;2,0.5;disconnect;"..fgettext("Exit to Menu")..
		"]checkbox[1,3.8;dpoint;Set DeathPoint;false]set_focus[ghostmode]")
end)

core.register_on_formspec_input(function(formname, fields)
	if formname == "cdf" then
        if fields.dpoint then setdwp()
		elseif fields.disconnect then
		    core.disconnect()
		elseif fields.respawn then
		    core.send_respawn()
        else
		    core.display_chat_message(minetest.colorize("#FF0","GhostMode active. Type '.resp' to respawn."))
        end
	end
end)

core.register_chatcommand("resp", {
	description = "Respawn from GhostMode",
	func = function()
		if core.localplayer:get_hp() == 0 then
			core.send_respawn()
		else
			core.display_chat_message(minetest.colorize("#FF0","You're alive yet ;)"))
		end
end})

core.register_chatcommand("rdp", {
	description = "Remove death waypoint",
	func = function()
        if DWP then
            core.localplayer:hud_remove(DWP)
            DWP = nil
        end
end})