Unity Android Game Development by Example Beginner's Guide

Time for action – adding collisions

We need to add some collision capabilities to our space objects, so that they can crash into each other and be shot at properly:

1. Let's start by giving collision to the asteroid. Do this by first selecting the mesh for the asteroid and adding a MeshCollider component. This will later let us shoot at the asteroid.
2. Next, select the same object that holds our Asteroid script component. Add a SphereCollider component to the object and adjust the Radius to be a little larger than the asteroid. This collider will detect when the asteroid has collided with the player.
   
3. The SphereCollider needs to have the Is Trigger checkbox ...