My game keeps crashing every time I want to run it

[froodthenoob]

Hi, so I'm new to Love, and I am trying to make a countdown to a certain date. In it, I have loops, which I suspect are the problem, but I can't make the program run without it. Attatched is my love file. Any help would be appreciated.

[zorg]

Hi and welcome to the forums!

The mistakes i have found:
- calling os.execute was pointless in that you can just print to the console if you have it enabled in conf.lua or you're running this with lovec.exe;
- löve already has a loop, so define infinite or timing loops can get the application to hang that way; use the deltatime you get in love.update or from love.timer.getDelta;
- ticktock was local to the dispTime function, meaning you could not print it in love.draw
- love.love.audio.stop is not something that exists, you probably wanted love.audio.stop but even that's unnecessary; löve will stop all sounds when it quits anyway.

I did implement a working version, but do try to learn from it.

Code: Select all

function dispTime(t)
  local d = math.floor( t / 86400)
  local h = math.floor((t % 86400) / 3600)
  local m = math.floor((t %  3600) /   60)
  local s = math.floor( t %    60)
  return ("%d:%02d:%02d:%02d"):format(d, h, m, s)
end

local countdown = {year = 2020, month = 11, day = 15}
local remaining

function love.load()
  remaining = os.difftime(os.time(countdown), os.time())
  tick = love.audio.newSource("tick.mp3", "static")
  abweb = love.graphics.newFont("abweb.ttf", 20)
  pic = love.graphics.newImage('unus annus.jpg')
end

local second_timer = 0.0
local even = false
function love.update(dt)
  -- add elapsed time to accumulator
  second_timer = second_timer + dt

  -- if a second has elapsed...
  if second_timer >= 1.0 then
    -- progress countdown
    remaining = os.difftime(os.time(countdown), os.time())

    -- play clock tick sound every second;
    -- the seek methods are only there because we're using one Source object, they're probably not that important anyway and could be removed...
    if even then
      tick:setPitch(0.8) -- lower pitch
      tick:seek(0)
      tick:play()
    else
      tick:setPitch(1.0)
      tick:seek(0)
      tick:play()
    end

    -- even and odd ticks sound different for aesthetic purposes.
    even = not even

    -- reset accumulator while keeping the remainder
    second_timer = second_timer % 1.0
  end
end

function love.draw()
  local W,H = love.graphics.getDimensions()
  local w,h = pic:getDimensions()
  love.graphics.setColor(1,1,1,.5)
  love.graphics.draw(pic, W/2-w/2, H/2-h/2)
  love.graphics.setColor(1,1,1,1)
  love.graphics.print("Press Escape to quit.",0,0)
  love.graphics.printf(dispTime(remaining), abweb, 0, H/2-abweb:getHeight()/2, W, 'center')
end

function love.keypressed(k)
	if k == 'escape' then
		love.event.quit()
	end
end