Graphics Reference
In-Depth Information
solution and can present challenges when trying to control the turning behavior of objects
floating in space or perhaps even character controllers.
To help out with controlling sideways slip, this simple PretendFriction.cs script can help:
using UnityEngine;
using System.Collections;
public class PretendFriction : MonoBehavior
{
private Rigidbody myBody;
private Transform myTransform;
private float myMass;
private float slideSpeed;
private Vector3 velo;
private Vector3 flatVelo;
private Vector3 myRight;
private Vector3 TEMPvec3;
public float theGrip=100f;
void Start ()
{
// cache some references to our rigidbody, mass and
// transform
myBody=rigidbody;
myMass=myBody.mass;
myTransform=transform;
}
void FixedUpdate ()
{
// grab the values we need to calculate grip
myRight=myTransform.right;
// calculate flat velocity
velo=myBody.velocity;
flatVelo.x=velo.x;
flatVelo.y=0;
flatVelo.z=velo.z;
// calculate how much we are sliding
slideSpeed=Vector3.Dot(myRight,flatVelo);
// build a new vector to compensate for the sliding
TEMPvec3= myRight * (-slideSpeed * myMass * theGrip);
// apply the correctional force to the rigidbody
myBody.AddForce(TEMPvec3 * Time.deltaTime);
}
}
