Make movement increase framerate independent

Development Programming & Scripting Blueprint
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1

Hi,

i have an endless runner kind of game, based on the SideScrollerBP-Example.
The “Event-Tick” is hooked up to an “Add Movement Input”- Node and the Scale-Value is set to “1” so that the runner runs by itself.
Whenever someone presses the “RunRight”-key the speed of the runner is increased by 10.

43428-maxspeed.png
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My problem now is that the increase of the speed is framerate dependent, cause the speed is only updated every frame (by calling “Add Movement Input” every frame).
How can i now increase the speed at the exact same time independent of framerate?
I tried a Timer that calls the “Add Movement Input” every 1ms, but this seems hacky (and i’m not really sure this works correctly).

2

You need to multiply your speed increase by the current delta-time.

There is a reasonable description of how to do this in the answers here;

3

Maybe i’m understanding something wrong, but my problem isn’t the end speed, the problem is the time to reach that. I update the max speed the moment i press the RunRight key, but this updated speed is only used in the next frame (By calling “Add Movement Input” - in the Event tick). So when the game runs @ 100fps the updated speed will come to effect in max. 10ms and if the game runs @ 1fps if will come to effect in max. 1s.

4

this article really helped me