Objects might fall through despite of collision

[zetsubou]

Hi.

When game object reaches high speed on y axis it might fall through a ground layer(that supposed to be collided with).

Can I fix it somehow? Perhaps increase frequency of collision checking(Is it possible in Phaser?).

[Milton]

If you use Matter:

You can adjust the number of iterations that Engine.update performs internally.
Use the Scene Matter Physics config object to set the following properties:

positionIterations (defaults to 6)
velocityIterations (defaults to 4)
constraintIterations (defaults to 2)

 

If you use Arcade you could just alter World.js a bit where it says (in update):

this.step(fixedDelta);

[zetsubou]

Thanks, @Milton!

[zetsubou]

@Milton, is that the only solution available? I mean I got no choice, but it feels kind of awkward changing phaser native code. 
And it just accelerates the game. Player still sometimes falls through the ground.

[zetsubou]

So, I came up with a solution that works(so far). I just made a setInterval with callback(collider.update()) with 3ms(perhaps I can set more seconds) delay.
But there is still a performance problem. There is my loop and phaser loop, so I invoke update more, than enough.

[Milton]

3ms is insane.

I would suggest switching to Matter, and configuring your collision.

[zetsubou]

@Milton, that's insane for sure, but I have already made a lot, I just cannot switch to another game engine.

[Milton]

You still use Phaser, just a different Physics engine. Matter is a lot more advanced than Arcade, and not much slower...

[Antriel]

You can increase the `fps` parameter of Arcade in game config.