LÖVE

josefnpat wrote:Nevertheless, I'd rather upload the *.love file here instead of linking it to mediafire or anything.

tentus wrote:Hm. Your animation was really jerky on my copy of 0.7.2, even after I corrected the image to be PO2, so I opened it up. I wasn't a fan of how you did time calculations, so I tried to implement a similar effect using the significantly smoother DT. Attached is what I came up with (there's a speed variable you can used to control how fast things happen).

Have you considered decoupling the foreground and background, to make the movement more interesting?

Robin wrote:Neato.

josefnpat wrote:Nevertheless, I'd rather upload the *.love file here instead of linking it to mediafire or anything.

That's actually preferred. Having it up on GitHub or something as well is good too.

josefnpat wrote: Thanks, I'm having issues with jerkyness in other games too. Need to better understand love and the drawing patters, thanks for the help! As for decoupling, I think that'd be spiffy. I'll see what I can do.

time = time + dt
if time >= 8 then
   doStuff()
end

y = y + (dt * 200)

y = y + (dt * 250)

tentus wrote:

josefnpat wrote: Thanks, I'm having issues with jerkyness in other games too. Need to better understand love and the drawing patters, thanks for the help! As for decoupling, I think that'd be spiffy. I'll see what I can do.

The big thing to keep in mind is 1 dt == 1 second. So, if we want something to take 8 seconds, add dt to a variable until it equals 8.

Code: Select all

time = time + dt
if time >= 8 then
   doStuff()
end

If we want to move something (lets say we want to increase the y position of an image by 200 pixels over 1 second), we take the current position and add dt times 200.

Code: Select all

y = y + (dt * 200)

It gets a little trickier when neither side equals 1, but it's still simple math. If we want to move an image 1000 pixels over 4 seconds, then this would be our code:

Code: Select all

y = y + (dt * 250)

Because 1000 pixels divided by 5 seconds equals 250 pixels per second.

I hope that helps, dt is a bit of an alien concept at first, but once you learn how to use it you never go back.

josefnpat wrote: Well, dt isn't so alien to me, it's just that I'm depending on the socket.http for the get time to produce a dt, instead of using the one from the framebuffer. I see the error in my ways, thank you so much.

x = 5

function love.update(dt)
	x = x + dt*100
end