koobas.hobune.stream
OnTriggerEnter AddForce
Hi there,
I have a quick problem with the syntax of using OnTriggerEnter where i want a falling cube to hit a paddle and bounce back up like on a trampoline. I realise this is one of the most obvious of unity questions but I have scoured the internet and simply cant find an example of the javascript i require. (I have used a Collider instead of trigger but because I'm using a cube it would hit the paddle and fall to one side and then go crazy, I'm looking for a smooth almost stylised bounce (not sending it flying with crazy rotations) regardless of the shape of the collider.
I'm using variations of the following...
var bounceSpeed : float = 8;
function OnTriggerEnter(thing: Collider){ if (thing.tag == "trampoline"){
cube.rigidbody.AddForce(bounceSpeed * Vector3.up, ForceMode.Force);
} } and nothing is working. I am attaching that script to the 'cube' and making the cube a trigger. I know this has been posted many times but every example im trying to change for my own use is failing. Any help would be great.
Thanks in advance.
To get the behaviour you want, I think that you should modify rigidbody.velocity directly: the cube must revert its movement instantly, what's very difficult to achieve applying a force. Try the following:
var bounceSpeed : float = 8;
function OnTriggerEnter(thing: Collider){ if (thing.tag == "trampoline"){ cube.rigidbody.velocity = bounceSpeed * Vector3.up; } } The docs say don't change rigidbody.velocity yourself to avoid unnatural reactions - but in this case that's exactly what you want: unnatural reaction!
