OnCollisionHit | Called when a collider/rigidbody hits another collider, including repeated hits on the same shape while they are already touching. |
OnCollisionStart | Called when a collider/rigidbody starts touching another collider. |
OnCollisionStop | Called when a collider/rigidbody stops touching another collider. |
OnCollisionUpdate | Called once per physics step for every collider being touched. |