Check if object is withing another object

Questions & Answers
1

I change the color of an gameObject if the player enters this gameObject. I use:

void OnTriggerEnter(Collider player) 
{
    Color color = Color.red;
    color.a = alpha;
    rend.material.color = color;
}

and:

void OnTriggerExit(Collider player) 
    {
        rend.material.color = myColor; //myColor = the original Color of the object
    }

But I want also to check if the player is fully within the gameObject and then change the color accordingly. To get this information I should use OnCollisionEnter but then OnTriggerEnter does not work and my player can’t pass through the gameObject anymore.

2

Ontriggerstay should be used. This is called every frame the gameobject is entered by the player.

In the ontrigger method, you can check if the player is completely inside the object with renderer.bounds

Just compare the players with the gameobjects bounds