LÖVE

Robin wrote:Also, it appears to lack a license. This makes böb sad:

Robin wrote:You mean CC-BY. Just saying "a Creative Commons license" isn't really clear. Luckily the URL was pretty explicit.

Rad3k wrote:I know it's an old thread, but I've just tried this game and wanted to say a few words.

The game is really nice, although a bit slow at the beginning (the paddles could move faster too). I'll have yet to try it with a friend to see how it feels when playing against another human.

Oh, and I have a small suggestion for (technical) improvement. CPU usage - on my system it's over 60% out of 2GHz, and it's quite much for a simple game like this. For stationary PCs it may not be a big deal, but it's certainly not nice for laptop batteries. The cause of this CPU usage is that the default LÖVE game loop runs as fast as it can. And normally, there's no reason to go faster than 60fps - refresh rate of most computer displays. Add this to your main.lua and expect an order of magnitude drop in CPU usage, with no decrease in performance:

Code: Select all

function love.run ()
	-- Prepare stuff
	love.load(arg)

	-- Set a reasonable FPS limit
	local FPS = 60
	local dt = 1 / FPS

	-- Timekeeping variable
	local time

	-- Main loop
	while true do

		-- Update the time
		time = love.timer.getTime()

		-- Process events
		for e, a, b, c in love.event.poll() do
			if e == "q" then
				if love.quit then love.quit() end
				if love.audio then love.audio.stop() end
				return
			end
			love.handlers[e](a, b, c)
		end
		
		-- Do the game mechanic
		if love.update then love.update(dt) end

		-- Draw the graphics
		love.graphics.clear()
		love.draw()
		love.graphics.present()

		-- Wait for another frame
		local time_work = love.timer.getTime() - time
		if time_work < dt then
			local time_wait = dt - time_work
			love.timer.sleep(time_wait * 1000)
		end
	end
end

This is the main loop I use in my projects - it runs with a constant framerate of 60fps.

function love.update(dt)
   if dt < (100/6) then
      love.timer.sleep((100/6) - dt)
   end
end

Robin wrote:Ehm, don't you mean something like:

Code: Select all

function love.update(dt)
   if dt < 1/60 then
      love.timer.sleep(1000*(1/60 - dt))
   end
end

The example on the wiki is dead wrong, by the way. Fixing it right away.

probably Edsger W. Dijkstra wrote:The computing scientist's main challenge is not to get confused by the complexities of his own making.

Rad3k wrote:I understand what this code is supposed to do, but it's unclear to me what it's actually doing.