Collider interactions

How collisions can call events and functions to trigger changes at run time.

Read time 1 minute

Last updated 18 days ago

When two colliders make contact, you can call functions to trigger other events in your project via scripting.

The two essential function types for collision interaction are

OnCollision

and

OnTrigger

Topic	Description
Use collisions to trigger other events	Overview of collision events and triggers, and the scripting API you need to use.
Interaction between collider types	How the different collider types interact with each other to call `OnCollision` and `OnTrigger` events.
OnCollision events	How colliders can call events when they physically collide.
OnTrigger events	How colliders can call events when one enters the space of another in a non-physical collision.
Create and configure a trigger collider	Create a trigger collider and configure its associated GameObject to correctly call events on trigger interactions.
Example scripts for collider events	Example scripts for `OnCollision` and `OnTrigger` events. These example scripts demonstrate some potential uses for scripted collision interactions and events.

Documentation