FCEUX SMB3 Any% SpeedRun Auto Timer Lua Script

smb3any.lua

local flag_start=0
local old_flag_start=0
local flag_end=0
local old_flag_end=0
local pc_masked=0
local n=0
local t_stop=0
local attempt=0
local running=false
local framerate=60.098813897441

function fmt_time(t)
	t_int=math.floor(t)
	ms=1000*(t-t_int)
	s=t_int%60
	m=(t_int-s)/60
	return(string.format("%3d:%02d.%03d",m,s,ms))
end

while true do
	pc_masked=AND(0xFFF0,memory.getregister("pc"))
	flag_start=AND(0xFFF0,memory.readword(0x1f8))
	flag_end=memory.readbyte(0x7f2)
	world_num=memory.readbyte(0x727)

	if old_flag_start==0x2230 and pc_masked==0xa810 and flag_start==0xa810 then
		n=0
		running=true
		attempt=attempt+1
	end
	if running==true and pc_masked==0xa810 and old_flag_end==0x3a and flag_end==0xc4 then
		t_stop=t
		running=false
	end

	t=n/framerate
	
	gui.text(60,224,string.format("%d",attempt),"white","clear")
	gui.text(190,224,fmt_time(t),"white","clear")
	if running then
		gui.text(100,224,fmt_time(t_stop),"white","clear")
	else
		gui.text(100,224,fmt_time(t_stop),"green","black")
	end

	emu.frameadvance()

	old_flag_start=flag_start
	old_flag_end=flag_end
	n=n+1
end