Game speed isn't time independent

[Steve132]

The game loop doesn't use a deltaTime parameter based on the current frametime, or a fixed FPS, either of which are necessary in order for the game's performance to be consistent.

On a high-end system the game loop is so fast it is completely unplayable.

[KarthikNedunchezhiyan]

Thanks for the report. Nice catch. This is indeed a problem to solve. Any implementation suggestions you have in mind?

[Steve132]

There primary solution that is accepted in industry is you have a single float deltaTime which is the amount of time in seconds as a double-precision number since the last frame. Then, everywhere you do physics or movement calculations (such as position+=velocity) you instead do position+=velocity*deltaTime;

[KarthikNedunchezhiyan]

That's a good suggestion. I think this should fix the problem.