Unity 2023.2: Introduction to 2D: Part 7: Collision System and Responding to Collisions
This video demonstrates how collider components (box and circle) work with a rigidbody component. By giving a game object mass (via a rigidbody component), the physic system in Unity will prevent the body and collider after the initial overlap begins.
In C#, a collision can be detected using the OnCollisionEnter2D() method. This method is given the collision event, including the incoming and current game object.
This video also showed a "hit box." In game design and development, the collider can extend away from a shape. Because the physics system only reacts to to the body and collider, the shape itself is not part of any calculations.
Unity 2023.2: Introduction to 2D Playlist: • Unity 2023.2: Introduction to 2D
Created by Dan Cox ( @DanCox )
