Mathf.Clamp with the rigidbody

Question

Hi guys, in this script if you press Q the object goes up, instead if you press E, it goes down. but it should have limits for both (max hight and minimum down position). I sow that I have to use Mathf.Clamp to set the limits, but in the unity API ther's an example with "transform.position", I don't have It in my script. Where Can I put The Mathf.Clamp limits in my script? Thank you and happy holidays to everyone :)

 #pragma strict
 
     
     var GoUp = 1.0;
     var GoDown = 5.0;
 
    function FixedUpdate() {
    
    if (Input.GetKey(KeyCode.Q)) {
       GetComponent.<Rigidbody>().AddForce(transform.up * GoUp);
    }
    else if (Input.GetKey(KeyCode.E)) {
       GetComponent.<Rigidbody>().AddForce(-transform.up * GoDown);
    }
    else if (Input.GetKey(KeyCode.W)) {
       GetComponent.<Rigidbody>().velocity = GetComponent.<Rigidbody>().velocity * 0.9;
    }
 }

Answer 1

Answer by JimNero_009 · Dec 26, 2015 at 03:46 PM

The clamp function restricts the value of something to be between two values. In your case, you need to restrict your y position, so you need to firstly define two floats (ymin, ymax) and add a check in your code that your rigidbody's y position is within this range. You could do this without a clamp function - have an if statement that checks the rigidbody's y position, and if it is outside of this range, set the velocity in either the up or down direction to be zero. Otherwise, just before you end your FixedUpdate function I think adding a line a bit like this;

transform.position.y = new Vector3(Mathf.Clamp(transform.position.y, ymin, ymax), 0, 0);

might do the trick, but have not tested it.

Add comment · Show 1 · Share

Mathf.Clamp with the rigidbody

1 Reply

Follow this Question

Related Questions