Radiants = Random.Range(0, 2 * Mathf.PI) ĭirection = new Vector2(Mathf.Cos(radiants), Mathf. used collision detection to move over the ground and bounce off walls, allowing the user to move. Share Improve this answer Follow answered at 17:57 Zebraman 809 5 6 That worked. In Unity, content is arranged in files called scenes. Finally, the Capsule collider defines a Capsule volume for collision detection. The Sphere Collider is similar, but using a spheric volume instead. You can define the box’s center and size using the Inspector. The Box Collider defines a cube area where collisions will be detected. In the 2d settings theres a similar setting called 'Velocity Threshold' which is usually set to '1'. The basics ones are Box, Sphere and Capsule collider components. Bounce, The fraction of a particles speed that rebounds from a surface. The 'Bounce Threshold' is a Physics3d setting so has no influence here (Physics2d).

If this is switch is unchecked, no bounce will occur but note. This fires whenever a collision is detected, and should do exactly what you need. This module controls the way particles collide with solid objects in the scene. For particles to bounce from the collider object, check the Enabled switch in this section.

You need the Bounciness != 0 in order to make the ball bounce on the walls.Ģ) You're adding every FixedUpdate() the same force to the ball, this will increase rapidly its velocity regardless of bounces, move the AddForce to Start for the moment, if you need to make further changes during runtime to the velocity of the ball, use the AddForce under an if statement of your choice, so it won't increase the velocity up to infinity (and making the ball go beyond the walls due to missed collision in a single physics timestep).Įdit 2: the code to randomly choose a direction but with a set speed. 103 2 Add a comment 1 Answer Sorted by: 0 Rather than using trigger, use OnCollisionEnter2D.

Create a new physics material 2D in the assets, set its Bounciness to 1 and Friction to 0, then drag it to the Material of the ball's Rigidbody 2D component. Just add a Static rigidbody 2D to all the walls.ġ) You haven't assigned a physics material to your ball.

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