hovercar script

Questions & Answers
1

hi does anyone know how i can make a hovercar hover by raycasting? like if its too close to the ground then make it higher and if its too high then make it go lower?

2

float hoverDistance;
float hoverForce;

void FixedUpdate()
{
    if(Physics.Raycast(transform.position, Vector3.down, hoverDistance)
    {
        rigidbody.AddForce(Vector3.up * hoverForce);
    } else {
        rigidbody.AddForce(Vector3.down * hoverForce);
    }
}

There’s a basic one. You could do with some damping, but this should make it fly.

3

I have this script which creates hover vehicle. there’s a bunch of things in here that you probably wont need.

Create a gameobject with a Rigidbody component then add this script as a component.

var driveForce: float;
var hoverHeight: float;
var thrustForce: float;
var steerForce: float;
var steerPosZ: float;
var thrusters: Vector3[];
var maxVelocity: float;
var layerMask: LayerMask;
var enableControl: boolean = false;
static var driveMulti: float =1;
static var steerMulti: float =-1;
var steer: float;
var targetNormal : Vector3;
var hoverHit: RaycastHit;
function Start (){

//code to set height from start height
var dwn = transform.TransformDirection (Vector3.down);
    if (Physics.Raycast (transform.position, dwn, hoverHit)) {
        print (hoverHit.distance);
    }
hoverHeight = hoverHit.distance;

targetNormal = transform.up;



}

function FixedUpdate () {
	var hit: RaycastHit;
	var normalhit :RaycastHit;
	var addedhit :RaycastHit;
	var thrustMulti : float;
	var adjustRatio : float = 0.1; //amount of the difference to rotate by
	var addedforce : float;
	
	//Cast a ray to the object below to apply a fake gravity. You can comment these lines out if you want to use real gravity.
	if (Physics.Raycast(transform.position, -transform.up, normalhit)){
		targetNormal = hit.normal;
		print (targetNormal);
		Debug.DrawLine (transform.position, normalhit.point);
	}
	
	
	if (enableControl){	
    steer = Input.GetAxis("Horizontal");
	var brakeLeft:float;
	var brakeRight:float;
	
	//Fake Gravity
	rigidbody.AddRelativeForce(-targetNormal.up * 100);
	
	var fwd: float = Input.GetAxis("Vertical");
	if (fwd >0){
	rigidbody.AddForceAtPosition(transform.forward * (driveForce * fwd), transform.TransformPoint(Vector3.forward * 1));
		}
		
    if (fwd <0){
	rigidbody.AddRelativeForce(transform.forward * (driveForce * fwd));
		}
	
	
	//Steering
	rigidbody.AddRelativeForce(transform.right * steer*steerForce);
		
	rigidbody.AddForceAtPosition(transform.right * (steerForce * steer * steerMulti), transform.TransformPoint(Vector3.forward * steerPosZ));
	
	
	if (Physics.Raycast(transform.position, -transform.up, addedhit)) 
		{
			addedforce	= (hoverHeight - addedhit.distance);
			if (addedforce <=0){
			addedforce=0;
		}
		}
	if (addedhit.distance <=2){
		rigidbody.AddRelativeForce(targetNormal.up *(addedforce*20));}
		
	rigidbody.AddRelativeForce(targetNormal.up * (thrustForce*(addedforce*addedforce)));
	
	//Create an array for the vertical thrusters and apply a force to each one.
	for (i = 0; i < thrusters.Length; i++) {
		var wdThruster: Vector3 = transform.TransformPoint(thrusters*);*

  •  if (Physics.Raycast(wdThruster, -transform.up, hoverHit))* 

  •  {*

  •  	discrep	= (hoverHeight - hoverHit.distance);*

  •  	if (discrep <=0.1){discrep=0;}*

  •  	var upVel: float = rigidbody.GetRelativePointVelocity(wdThruster).y;*

_ rigidbody.AddForceAtPosition(transform.up * (thrustForce *discrep), wdThruster);_

  •  }*

  • }*

  • }*
    }

//Draw some gizmos to indicate thruster position.
function OnDrawGizmos() {

  • for (i = 0; i < thrusters.Length; i++) {*
    _ Gizmos.DrawWireSphere(transform.TransformPoint(thrusters*), 0.1);_
    _     }*_

_ Gizmos.DrawWireSphere(transform.TransformPoint(Vector3.right * steer), 2);_
}

4

The script above looks interesting, but it gives me an error message:

Unknown identifier:‘i’

Unknown identifier:‘discrep’