Hi there!
So, I’ve been building a car game and I got the script ready, but then I noticed that if I were to go uphill, the car would slow down and finally start moving backwards… I’ve tried increasing the motorTorque value but still no change. Also, once the car starts moving backwards, it keeps on going until handbrakes are applied. Accelerating it forward has very little effect on it.
I’m posting my code here just in case…
[LEFT][SIZE=4][COLOR=#808080]using UnityEngine;
using System.Collections;
public class VehicleControl : MonoBehaviour
{
public int bhp;
public float torque;
public int brakeTorque;
public float[] gearRatio;
public int currentGear;
public bool ignP1 = false;
public bool IgnP2 = false;
public GameObject IgnBeep;
public GameObject IgnMain;
public GameObject idleSound;
public GameObject turboSound;
public WheelCollider FL;
public WheelCollider FR;
public WheelCollider RL;
public WheelCollider RR;
public float currentSpeed;
public int maxSpeed;
public int maxRevSpeed;
public float SteerAngle;
public GameObject BrakeLgts;
public GameObject RevLgts;
public bool engineIsOn = false;
public bool isManual = false;
public float engineRPM;
public float gearUpRPM;
public float gearDownRPM;
private GameObject COM;
public bool handBraked;
private Vector3 Exh1_Pos;
private Vector2 Exh2_Pos;
public AudioSource BacFire_Sound;
public AudioSource skidAudio;
void Start()
{
FL = GameObject.Find("WlFL.Col").GetComponent<WheelCollider>();
FR = GameObject.Find("WlFR.Col").GetComponent<WheelCollider>();
RL = GameObject.Find("WlRL.Col").GetComponent<WheelCollider>();
RR = GameObject.Find("WlRR.Col").GetComponent<WheelCollider>();
Exh1_Pos = GameObject.Find("Exh1_BF").transform.position;
Exh2_Pos = GameObject.Find("Exh2_BF").transform.position;
BacFire_Sound = GameObject.Find ("BackFire").GetComponent<AudioSource>();
skidAudio = GameObject.Find("SkidAudio").GetComponent<AudioSource>();
COM = GameObject.Find("COM");
handBraked = false;
BrakeLgts = GameObject.Find("BrakeLights");
RevLgts = GameObject.Find("RevLights");
BrakeLgts.SetActive(false);
GetComponent<Rigidbody>().centerOfMass = new Vector3(COM.transform.localPosition.x * transform.localScale.x, COM.transform.localPosition.y * transform.localScale.y, COM.transform.localPosition.z * transform.localScale.z);
}
void Update()
{
Steer();
currentSpeed = GetComponent<Rigidbody>().velocity.magnitude * 3.6f;
GetComponent<Rigidbody>().drag = Mathf.Round(GetComponent<Rigidbody>().velocity.magnitude / 250);
engineRPM = (((RL.rpm + RR.rpm) / 2) * gearRatio[currentGear]);
if (Input.GetKeyDown(KeyCode.I))
{
if (IgnP2 == false && ignP1 == false)
{
ignP1 = true;
IgnBeep.GetComponent<AudioSource>().Play();
torque = 0;
BrakeLgts.SetActive(true);
}
else if (ignP1 == true && IgnP2 == false)
{
IgnP2 = true;
IgnBeep.GetComponent<AudioSource>().Stop();
IgnMain.GetComponent<AudioSource>().PlayOneShot(IgnMain.GetComponent<AudioSource>().clip);
engineIsOn = true;
BrakeLgts.SetActive(false);
}
else if (ignP1 == true && IgnP2 == true)
{
engineIsOn = false;
ignP1 = false;
IgnP2 = false;
}
else { engineIsOn = false; }
}
if (engineIsOn == true)
{
torque = bhp * gearRatio[currentGear];
idleSound.GetComponent<AudioSource>().Play();
Accelerate();
BrakeLights();
}
else
{
torque = 0;
idleSound.GetComponent<AudioSource>().Stop();
}
if (Input.GetKeyDown(KeyCode.M))
{
isManual = true;
}
else if (Input.GetKeyDown(KeyCode.N))
{
isManual = false;
}
if (isManual == true)
{
ManualGears();
}
else
{
AutoGears();
}
if (Input.GetButton("Jump"))
{
HandBrakes();
}
if (engineRPM < 0 && currentSpeed > 5 && Input.GetAxis("Vertical") < 0)
{
RevLgts.SetActive(true);
}
else
{
RevLgts.SetActive(false);
}
WheelHit CorrespondingGroundHit;;
RR.GetGroundHit(out CorrespondingGroundHit );
if(Mathf.Abs(CorrespondingGroundHit.sidewaysSlip) > 10) {
skidAudio.enabled = true;
}else{
skidAudio.enabled = false;
}
}
void Accelerate()
{
if (currentSpeed < maxSpeed && currentSpeed > maxRevSpeed && engineRPM <= gearUpRPM)
{
RL.motorTorque = torque * Input.GetAxis("Vertical");
RR.motorTorque = torque * Input.GetAxis("Vertical");
RL.brakeTorque = 0;
RR.brakeTorque = 0;
}
else
{
RL.motorTorque = 0;
RR.motorTorque = 0;
RL.brakeTorque = brakeTorque;
RR.brakeTorque = brakeTorque;
}
if (engineRPM > 0 && Input.GetAxis("Vertical") < 0)
{
FL.brakeTorque = brakeTorque;
FR.brakeTorque = brakeTorque;
}
else
{
FL.brakeTorque = 0;
FR.brakeTorque = 0;
}
turboSound.GetComponent<AudioSource>().pitch = Mathf.Abs(engineRPM / gearUpRPM) + .5f;
if (turboSound.GetComponent<AudioSource>().pitch > 2.0f)
{
turboSound.GetComponent<AudioSource>().pitch = 2.0f;
}
}
void Steer()
{
if (currentSpeed < 150)
{
SteerAngle = 18 - (currentSpeed / 10);
}
else
{
SteerAngle = 2;
}
FL.steerAngle = SteerAngle * Input.GetAxis("Horizontal");
FR.steerAngle = SteerAngle * Input.GetAxis("Horizontal");
}
void BrakeLights()
{
if (currentSpeed == 0 && engineIsOn == true || engineRPM > 0 && Input.GetAxis("Vertical") < 0)
{
BrakeLgts.SetActive(true);
}
else
{
BrakeLgts.SetActive(false);
}
}
void ManualGears()
{
if (currentGear >= 0 && currentGear < gearRatio.Length)
{
if (Input.GetKeyDown(KeyCode.A)) {
currentGear = currentGear + 1;
}
else if (Input.GetKeyDown(KeyCode.Z))
{
currentGear = currentGear - 1;
}
}
if (currentGear == -1)
{
currentGear = 0;
}
}
void AutoGears()
{
int AppropriateGear = currentGear;
if (engineRPM >= gearUpRPM)
{
for (var i = 0; i < gearRatio.Length; i++)
{
if (RL.rpm * gearRatio[i] < gearUpRPM)
{
AppropriateGear = i;
break;
}
}
currentGear = AppropriateGear;
BacFire_Sound.PlayOneShot(BacFire_Sound.clip);
}
if (engineRPM <= gearDownRPM)
{
AppropriateGear = currentGear;
for (var j = gearRatio.Length - 1; j >= 0; j--)
{
if (RL.rpm * gearRatio[j] > gearDownRPM)
{
AppropriateGear = j;
break;
}
}
currentGear = AppropriateGear;
}
}
void HandBrakes()
{
RL.brakeTorque = brakeTorque;
RR.brakeTorque = brakeTorque;
FL.brakeTorque = brakeTorque;
FR.brakeTorque = brakeTorque;
}
}
[/COLOR][/SIZE][/LEFT]