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87 lines
1.8 KiB
87 lines
1.8 KiB
using UnityEngine;
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using System.Collections;
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public class Suspension : MonoBehaviour {
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public GameObject dispWheel;
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public float supLength;
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public float supStrength;
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public float supDampner;
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public Rigidbody carRigid;
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public RaycastHit supHit;
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public float supcompressionRatio;
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//public GameObject carBody;
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// Use this for initialization
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void Start () {
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carRigid = transform.parent.GetComponent<Rigidbody>();
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if (carRigid == null)
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carRigid = transform.root.GetComponentInChildren<Rigidbody>();
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}
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// Update is called once per frame
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void FixedUpdate () {
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float compRatio = calcCompRatio ();
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if (compRatio !=0)
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calcForce (compRatio);
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}
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void Update(){
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wheelDisplay (supcompressionRatio);
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}
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private float calcCompRatio(){
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float compressionRatio = 0;
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RaycastHit hit;
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Ray ray = new Ray (transform.position, -transform.up);
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Debug.DrawRay (ray.origin, ray.direction*supLength, Color.green);
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if (Physics.Raycast (ray, out hit, supLength)) {
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Debug.DrawRay (ray.origin, ray.direction*hit.distance, Color.red);
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compressionRatio = 1-hit.distance/supLength;
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}
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supHit = hit;
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supcompressionRatio = compressionRatio;
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return compressionRatio;
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}
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private void calcForce(float compRatio){
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Vector3 curVel = carRigid.GetPointVelocity (transform.position);
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Vector3 curForce = Vector3.Project (curVel, transform.up);
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Vector3 newForce = Vector3.up * supStrength * compRatio;
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Vector3 deltaForce = newForce - curForce*supDampner ;
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//Debug.Log (deltaForce);
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carRigid.AddForceAtPosition (deltaForce, transform.position);
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}
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private void wheelDisplay(float compRatio){
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if (dispWheel == null)
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return;
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Vector3 newPos = transform.position;
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newPos.y = transform.position.y - ((1 - compRatio) * supLength)+ (0.25f * dispWheel.transform.lossyScale.y);
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dispWheel.transform.position = newPos;
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}
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}
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