I recently needed a countdown timer for a game I wanted to port but wasn't able to find a tutorial online. The code wasn't exactly difficult, but it would have saved me some time, so I figured I would upload the template I made for myself so others could use it.
This will show the timer on screen in total seconds (set to the highest maximum number by default) and in digital clock format (00:00:00).
-- countdown timer
-- by ryanb_dev
-- hours:minutes:seconds
-- max 32767 seconds
-- 9:06:06
function _init()
timer = {
text = "",
hours = 0,
minutes = 0,
seconds = 0,
active = true,
seconds_left = 32767,
math_seconds = 0,
}
last_time = time()
end
function _update60()
if (timer.active) then
timer_update()
end
end
function _draw()
cls()
//actual seconds
print(timer.seconds_left)
//clock format
print(timer.text)
end
function timer_update()
timer.text = ""
timer.seconds_left -= time() - last_time
timer.math_seconds = timer.seconds_left
last_time = time()
timer.hours = flr(timer.math_seconds / 3600)
timer.math_seconds -= timer.hours * 3600
timer.minutes = flr(timer.math_seconds / 60)
timer.seconds = flr(timer.math_seconds % 60)
timer.text = timer.text.."0"..tostr(timer.hours)..":"
if timer.minutes < 10 then
timer.text = timer.text.."0"..tostr(timer.minutes)..":"
else
timer.text = timer.text..tostr(timer.minutes)..":"
end
if timer.seconds < 10 then
timer.text = timer.text.."0"..tostr(timer.seconds)
else
timer.text = timer.text..tostr(timer.seconds)
end
if (timer.seconds_left <= 0) then
timer.active = false
end
end |
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