Setting the Frame rate

[omegazion]

Hello, I have just recently found Löve engine and I think i'm starting to löve it!

The previous engine I worked with I was used to having constant FPS throughout the execution. I was wondering if it can also be achieved in Löve. Is it possible to set the Frame Rate of Löve to some constant number? I've searched the wiki and all I saw was love.timer.getFPS (no set), there was also nothing about it on the configuration file.

[tentus]

You may want to read this thread: http://love2d.org/forums/viewtopic.php?f=3&t=1708

[thelinx]

Strictly speaking, no.

Instead, you should program your game to be speed independent. Make good use of the dt variable passed to love.update.

Instead of:

Code: Select all

function love.update()
  -- hoping for 30 FPS
  moveThing(3.333) -- move it 100 pixels a second (100/30)
end

do this

Code: Select all

function love.update(dt)
  -- time independent code, yay!
  moveThing(100*dt) -- move it 100 pixels a second. this works because dt is the time since the last update, in seconds.
end

[Robin]

Also, you can control the framerate *somewhat* by using love.timer.sleep().

[Taehl]

When you use love.graphics.setMode to set your screen metrics, you can enable vsynch, which will cap the framerate at 60.

[TechnoCat]

When you use love.graphics.setMode to set your screen metrics, you can enable vsynch, which will cap the framerate at 60.

Doesn't work on my computer.

[omegazion]

Thanks for the really quick responses guys. I am trying to build some sort of RPG game so I don't think I need the accuracy the update per dt provides. I'll just try to do a workaround using love.timer.sleep.

[Robin]

I don't think I need the accuracy the update per dt provides

Using dt is probably still a good idea, because if you don't, the game runs much faster on a faster computer.

[tentus]

DT should still become a vital part of your game code. For example, how fast can the player walk? How often do random encounters occur? The easiest and simplest solution is to use dt. Trust us, once your get to know it you'll wonder how you got by without it.

[Jasoco]

Thanks for the really quick responses guys. I am trying to build some sort of RPG game so I don't think I need the accuracy the update per dt provides. I'll just try to do a workaround using love.timer.sleep.

No, you should still use it. Seeing as you'll want your characters to walk from tile to tile, not just jump to each tile without animation. Because that's the lazy person's way out.