Using dt - [SOLVED]

[bgordebak]

Using dt makes my game painfully slow. What can be the problem?

Edit: .love file is attached.

Here's the code:

Code: Select all

...
elseif liney == 326 then
	  difficulty = 10
elseif liney == 364 then
	  difficulty = 15
elseif liney == 402 then
	  difficulty = 20
...
function love.update(dt)
if isSplash == false then
    if love.keyboard.isDown("left") then
	velx = -difficulty
	vely = 0
    end
    if love.keyboard.isDown("right") then
	velx = difficulty
	vely = 0
    end
    if love.keyboard.isDown("up") then
	vely = -difficulty
	velx = 0
    end
    if love.keyboard.isDown("down") then
	vely = difficulty
	velx = 0
    end

...

ballx = ballx + (velx * dt)
bally = bally + (vely * dt)

[davisdude]

It's just slow compared to what you're used to, not to what it actually should be. Just increase the speed some more and that should do it for you.

[bgordebak]

Thanks. I just figured it out. I was giving difficulty a default value which was very small.

[IMP1]

dt is in seconds, so you need to think about how much things should move (in pixels generally) per second and have that as the speed.