Sometimes the ball goes through the collision.

[lcsweet]

In the process of moving the ball sometimes through the collision body, the situation is the occasional occurrence.

[schteppe]

Hello, I think you need CCD but I'm not sure. A smaller time step can also help. Can you tell me more about your physics setup? Is it Circle vs Box or something else?

[lcsweet]

The moving ball has circle and polygon, is set up：

    body.angularDamping = 0;
    body.angularForce = 0;
    body.applyDamping(0);
    body.damping = 0;

Wall is BOX Address of the game：http://xchange-cq.com/test/ http://xchange-cq.com/demo/error1.png http://xchange-cq.com/demo/error1.png

[schteppe]

I see :) Try using a thicker box, or Plane shapes for the walls instead. If a shape is too thin it will allow for pass-through if the ball has high velocity.

[jtenner]

CCD is a lifesaver too.

Depends on if the object needs a high velocity.

[issy123]

@jtenner how did you fix it with CCD, mind give me some code?

[jtenner]

check here

This has the code for adding continuous collision detection. It's very useful for fast moving objects that require precision.