How solve the 2d collider penetration problem ?

Questions & Answers
1

as you see in the video i have problem of circle collider penetrate in the 2d box collider i manipulate 2d physic setting but no diffrence [60675-capture-2.zip|60675]

the other problem is bounciness on platform

and other thing that i want to add about bounciness on moving platform is that even i set bounciness of physic material to 0 for both colider the stone bounces on platform

3

How are you moving the platform?

The Unity’s physics isn’t the best option for platform games, did you tryied out using the Raycast system?

Here is a quite simple tutorial that made me easily understand how raycast can be useful in platform games: [Unity] Creating a 2D Platformer (E06. moving platform basics) - YouTube (this is the part 6, that talk about moving platforms, but you will really want to watch it from beggining)

As an another option, you can make a script for the platform, so every time platform collides with the ball it makes the ball a child of the platform.

Something like that:

void OnTriggerEnter(Collider other)
{
    if (other.tag == "ball")
    {
        other.transform.parent = transform;
    }
}

void OnTriggerExit(Collider other)
{
    if (other.tag == "ball")
    {
        other.transform.parent = null;
    }
}
2

IS THERE ANY ONE ?