Recently, I study make a racing car refer to others car tutorial.
Why my script for controllering car do not work. There is no error on console. But my car cannot move and turn, it stays there.
Have anybody help to correct ?
Cheers,
Harry
using UnityEngine;
using System.Collections;
public class NewBehaviourScript: MonoBehaviour {
public float enginePower = 150.0f;
public float power = 0.0f;
public float brake = 0.0f;
public float steer = 0.0f;
public float maxSteer = 25.0f;
public WheelCollider Wheel_LF;
public WheelCollider Wheel_RF;
public WheelCollider Wheel_LR;
public WheelCollider Wheel_RR;
void Start()
{
GetComponent<Rigidbody>().centerOfMass=new Vector3(0f,-0.5f,0.3f);
}
void Update ()
{
power=Input.GetAxis("Vertical") * enginePower * Time.deltaTime * 250.0f;
steer=Input.GetAxis("Horizontal") * maxSteer;
brake=Input.GetKey("space") ? GetComponent<Rigidbody>().mass * 0.1f: 0.0f;
Wheel_LF.steerAngle=steer;
Wheel_RF.steerAngle=steer;
if(brake > 0.0)
{
Wheel_LF.brakeTorque=brake;
Wheel_RF.brakeTorque=brake;
Wheel_LR.brakeTorque=brake;
Wheel_RR.brakeTorque=brake;
Wheel_LR.motorTorque=0.0f;
Wheel_RR.motorTorque=0.0f;
}
else
{
Wheel_LF.brakeTorque=0;
Wheel_RF.brakeTorque=0;
Wheel_LR.brakeTorque=0;
Wheel_RR.brakeTorque=0;
Wheel_LR.motorTorque=power;
Wheel_RR.motorTorque=power;
}
}
}
Attach the script to a GameObject, your car I suppose.
Also make sure your inputs are working right. There probably is no substitute for some basic debugging here. Use Debug.Log(dumpYourVariableHereToSeeTheValue);
Maybe its a small detail but I don’t see anything actually adding force. What represents the gas pedal?
I have already attached to my car. And check the input from “Edit” → “Project Settings” ->“Input”. And have same doubt where is moving force from.
Check your WheelColliders. From the first screenshot, I can tell that they aren’t set up correctly. The ForceAppPointDistance (the little green sphere) has to be at the bottom of the wheel, not the sides.
Make sure your WheelCollider’s transform axes are set up correctly :
X should point right
Y should point up
Z should point forward
Thanks, I have a little understanding, can I understand it is the center of gravity.
As mentioned I download the whole car model from assert store and import here. How to change that green sphere separately? When I change the transform, the whole car has change.
Sorry, I misunderstand for ForceAppPointDistance. It’s a variable for WheelColliders. Vaule default is 0. I consult the document for WheelCollider for studying now. Has recommended value for setting?
0 is a good value. Just make sure the sphere is at the bottom of the WheelCollider and not the sides.
Apparently, that car has pivot rotation problems. By default, the axes clearly point in the wrong direction. Try using another model or fixing it by parenting each child object in a new gameObject.
Thanks.I tried for many times, but I could not change like yours. How did you do that? If I change Y for Rotation as “180” to like your x/y/z points, the inside wheel will show to me. That must be wrong.
Defauft rotation(0,0,0) is looks like
How can I set up the correct transform for the wheels? Did I change the wrong place or misunderstanding?
using UnityEngine;
namespace UnityStandardAssets.Vehicles.Car
{
internal enum CarDriveType
{
FrontWheelDrive,
RearWheelDrive,
FourWheelDrive
}
internal enum SpeedType
{
MPH,
KPH
}
public class CarController : MonoBehaviour
{
[SerializeField] private CarDriveType m_CarDriveType = CarDriveType.FourWheelDrive;
[SerializeField] private WheelCollider[] m_WheelColliders = new WheelCollider[4];
[SerializeField] private GameObject[] m_WheelMeshes = new GameObject[4];
[SerializeField] private WheelEffects[] m_WheelEffects = new WheelEffects[4];
[SerializeField] private Vector3 m_CentreOfMassOffset;
[SerializeField] private float m_MaximumSteerAngle;
[Range(0, 1)] [SerializeField] private float m_SteerHelper; // 0 is raw physics , 1 the car will grip in the direction it is facing
[Range(0, 1)] [SerializeField] private float m_TractionControl; // 0 is no traction control, 1 is full interference
[SerializeField] private float m_FullTorqueOverAllWheels;
[SerializeField] private float m_ReverseTorque;
[SerializeField] private float m_MaxHandbrakeTorque;
[SerializeField] private float m_Downforce = 100f;
[SerializeField] private SpeedType m_SpeedType;
[SerializeField] private float m_Topspeed = 200;
[SerializeField] private static int NoOfGears = 5;
[SerializeField] private float m_RevRangeBoundary = 1f;
[SerializeField] private float m_SlipLimit;
[SerializeField] private float m_BrakeTorque;
private Quaternion[] m_WheelMeshLocalRotations;
private Vector3 m_Prevpos, m_Pos;
private float m_SteerAngle;
private int m_GearNum;
private float m_GearFactor;
private float m_OldRotation;
private float m_CurrentTorque;
private Rigidbody m_Rigidbody;
private const float k_ReversingThreshold = 0.01f;
public bool Skidding { get; private set; }
public float BrakeInput { get; private set; }
public float CurrentSteerAngle{ get { return m_SteerAngle; }}
public float CurrentSpeed{ get { return m_Rigidbody.velocity.magnitude*2.23693629f; }}
public float MaxSpeed{get { return m_Topspeed; }}
public float Revs { get; private set; }
public float AccelInput { get; private set; }
// Use this for initialization
private void Start()
{
m_WheelMeshLocalRotations = new Quaternion[4];
for (int i = 0; i < 4; i++)
{
m_WheelMeshLocalRotations[i] = m_WheelMeshes[i].transform.localRotation;
}
m_WheelColliders[0].attachedRigidbody.centerOfMass = m_CentreOfMassOffset;
m_MaxHandbrakeTorque = float.MaxValue;
m_Rigidbody = GetComponent<Rigidbody>();
m_CurrentTorque = m_FullTorqueOverAllWheels - (m_TractionControl*m_FullTorqueOverAllWheels);
}
private void GearChanging()
{
float f = Mathf.Abs(CurrentSpeed/MaxSpeed);
float upgearlimit = (1/(float) NoOfGears)*(m_GearNum + 1);
float downgearlimit = (1/(float) NoOfGears)*m_GearNum;
if (m_GearNum > 0 && f < downgearlimit)
{
m_GearNum--;
}
if (f > upgearlimit && (m_GearNum < (NoOfGears - 1)))
{
m_GearNum++;
}
}
// simple function to add a curved bias towards 1 for a value in the 0-1 range
private static float CurveFactor(float factor)
{
return 1 - (1 - factor)*(1 - factor);
}
// unclamped version of Lerp, to allow value to exceed the from-to range
private static float ULerp(float from, float to, float value)
{
return (1.0f - value)*from + value*to;
}
private void CalculateGearFactor()
{
float f = (1/(float) NoOfGears);
// gear factor is a normalised representation of the current speed within the current gear's range of speeds.
// We smooth towards the 'target' gear factor, so that revs don't instantly snap up or down when changing gear.
var targetGearFactor = Mathf.InverseLerp(f*m_GearNum, f*(m_GearNum + 1), Mathf.Abs(CurrentSpeed/MaxSpeed));
m_GearFactor = Mathf.Lerp(m_GearFactor, targetGearFactor, Time.deltaTime*5f);
}
private void CalculateRevs()
{
// calculate engine revs (for display / sound)
// (this is done in retrospect - revs are not used in force/power calculations)
CalculateGearFactor();
var gearNumFactor = m_GearNum/(float) NoOfGears;
var revsRangeMin = ULerp(0f, m_RevRangeBoundary, CurveFactor(gearNumFactor));
var revsRangeMax = ULerp(m_RevRangeBoundary, 1f, gearNumFactor);
Revs = ULerp(revsRangeMin, revsRangeMax, m_GearFactor);
}
public void Move(float steering, float accel, float footbrake, float handbrake)
{
for (int i = 0; i < 4; i++)
{
Quaternion quat;
Vector3 position;
m_WheelColliders[i].GetWorldPose(out position, out quat);
m_WheelMeshes[i].transform.position = position;
m_WheelMeshes[i].transform.rotation = quat;
}
//clamp input values
steering = Mathf.Clamp(steering, -1, 1);
AccelInput = accel = Mathf.Clamp(accel, 0, 1);
BrakeInput = footbrake = -1*Mathf.Clamp(footbrake, -1, 0);
handbrake = Mathf.Clamp(handbrake, 0, 1);
//Set the steer on the front wheels.
//Assuming that wheels 0 and 1 are the front wheels.
m_SteerAngle = steering*m_MaximumSteerAngle;
m_WheelColliders[0].steerAngle = m_SteerAngle;
m_WheelColliders[1].steerAngle = m_SteerAngle;
SteerHelper();
ApplyDrive(accel, footbrake);
CapSpeed();
//Set the handbrake.
//Assuming that wheels 2 and 3 are the rear wheels.
if (handbrake > 0f)
{
var hbTorque = handbrake*m_MaxHandbrakeTorque;
m_WheelColliders[2].brakeTorque = hbTorque;
m_WheelColliders[3].brakeTorque = hbTorque;
}
CalculateRevs();
GearChanging();
AddDownForce();
CheckForWheelSpin();
TractionControl();
}
private void CapSpeed()
{
float speed = m_Rigidbody.velocity.magnitude;
switch (m_SpeedType)
{
case SpeedType.MPH:
speed *= 2.23693629f;
if (speed > m_Topspeed)
m_Rigidbody.velocity = (m_Topspeed/2.23693629f) * m_Rigidbody.velocity.normalized;
break;
case SpeedType.KPH:
speed *= 3.6f;
if (speed > m_Topspeed)
m_Rigidbody.velocity = (m_Topspeed/3.6f) * m_Rigidbody.velocity.normalized;
break;
}
}
private void ApplyDrive(float accel, float footbrake)
{
float thrustTorque;
switch (m_CarDriveType)
{
case CarDriveType.FourWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 4f);
for (int i = 0; i < 4; i++)
{
m_WheelColliders[i].motorTorque = thrustTorque;
}
break;
case CarDriveType.FrontWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 2f);
m_WheelColliders[0].motorTorque = m_WheelColliders[1].motorTorque = thrustTorque;
break;
case CarDriveType.RearWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 2f);
m_WheelColliders[2].motorTorque = m_WheelColliders[3].motorTorque = thrustTorque;
break;
}
for (int i = 0; i < 4; i++)
{
if (CurrentSpeed > 5 && Vector3.Angle(transform.forward, m_Rigidbody.velocity) < 50f)
{
m_WheelColliders[i].brakeTorque = m_BrakeTorque*footbrake;
}
else if (footbrake > 0)
{
m_WheelColliders[i].brakeTorque = 0f;
m_WheelColliders[i].motorTorque = -m_ReverseTorque*footbrake;
}
}
}
private void SteerHelper()
{
for (int i = 0; i < 4; i++)
{
WheelHit wheelhit;
m_WheelColliders[i].GetGroundHit(out wheelhit);
if (wheelhit.normal == Vector3.zero)
return; // wheels arent on the ground so dont realign the rigidbody velocity
}
// this if is needed to avoid gimbal lock problems that will make the car suddenly shift direction
if (Mathf.Abs(m_OldRotation - transform.eulerAngles.y) < 10f)
{
var turnadjust = (transform.eulerAngles.y - m_OldRotation) * m_SteerHelper;
Quaternion velRotation = Quaternion.AngleAxis(turnadjust, Vector3.up);
m_Rigidbody.velocity = velRotation * m_Rigidbody.velocity;
}
m_OldRotation = transform.eulerAngles.y;
}
// this is used to add more grip in relation to speed
private void AddDownForce()
{
m_WheelColliders[0].attachedRigidbody.AddForce(-transform.up*m_Downforce*
m_WheelColliders[0].attachedRigidbody.velocity.magnitude);
}
// checks if the wheels are spinning and is so does three things
// 1) emits particles
// 2) plays tiure skidding sounds
// 3) leaves skidmarks on the ground
// these effects are controlled through the WheelEffects class
private void CheckForWheelSpin()
{
// loop through all wheels
for (int i = 0; i < 4; i++)
{
WheelHit wheelHit;
m_WheelColliders[i].GetGroundHit(out wheelHit);
// is the tire slipping above the given threshhold
if (Mathf.Abs(wheelHit.forwardSlip) >= m_SlipLimit || Mathf.Abs(wheelHit.sidewaysSlip) >= m_SlipLimit)
{
m_WheelEffects[i].EmitTyreSmoke();
// avoiding all four tires screeching at the same time
// if they do it can lead to some strange audio artefacts
if (!AnySkidSoundPlaying())
{
m_WheelEffects[i].PlayAudio();
}
continue;
}
// if it wasnt slipping stop all the audio
if (m_WheelEffects[i].PlayingAudio)
{
m_WheelEffects[i].StopAudio();
}
// end the trail generation
m_WheelEffects[i].EndSkidTrail();
}
}
// crude traction control that reduces the power to wheel if the car is wheel spinning too much
private void TractionControl()
{
WheelHit wheelHit;
switch (m_CarDriveType)
{
case CarDriveType.FourWheelDrive:
// loop through all wheels
for (int i = 0; i < 4; i++)
{
m_WheelColliders[i].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
}
break;
case CarDriveType.RearWheelDrive:
m_WheelColliders[2].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
m_WheelColliders[3].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
break;
case CarDriveType.FrontWheelDrive:
m_WheelColliders[0].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
m_WheelColliders[1].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
break;
}
}
private void AdjustTorque(float forwardSlip)
{
if (forwardSlip >= m_SlipLimit && m_CurrentTorque >= 0)
{
m_CurrentTorque -= 10 * m_TractionControl;
}
else
{
m_CurrentTorque += 10 * m_TractionControl;
if (m_CurrentTorque > m_FullTorqueOverAllWheels)
{
m_CurrentTorque = m_FullTorqueOverAllWheels;
}
}
}
private bool AnySkidSoundPlaying()
{
for (int i = 0; i < 4; i++)
{
if (m_WheelEffects[i].PlayingAudio)
{
return true;
}
}
return false;
}
}
}
using UnityEngine;
namespace UnityStandardAssets.Vehicles.Car
{
internal enum CarDriveType
{
FrontWheelDrive,
RearWheelDrive,
FourWheelDrive
}
internal enum SpeedType
{
MPH,
KPH
}
public class CarController : MonoBehaviour
{
[SerializeField] private CarDriveType m_CarDriveType = CarDriveType.FourWheelDrive;
[SerializeField] private WheelCollider[] m_WheelColliders = new WheelCollider[4];
[SerializeField] private GameObject[] m_WheelMeshes = new GameObject[4];
[SerializeField] private WheelEffects[] m_WheelEffects = new WheelEffects[4];
[SerializeField] private Vector3 m_CentreOfMassOffset;
[SerializeField] private float m_MaximumSteerAngle;
[Range(0, 1)] [SerializeField] private float m_SteerHelper; // 0 is raw physics , 1 the car will grip in the direction it is facing
[Range(0, 1)] [SerializeField] private float m_TractionControl; // 0 is no traction control, 1 is full interference
[SerializeField] private float m_FullTorqueOverAllWheels;
[SerializeField] private float m_ReverseTorque;
[SerializeField] private float m_MaxHandbrakeTorque;
[SerializeField] private float m_Downforce = 100f;
[SerializeField] private SpeedType m_SpeedType;
[SerializeField] private float m_Topspeed = 200;
[SerializeField] private static int NoOfGears = 5;
[SerializeField] private float m_RevRangeBoundary = 1f;
[SerializeField] private float m_SlipLimit;
[SerializeField] private float m_BrakeTorque;
private Quaternion[] m_WheelMeshLocalRotations;
private Vector3 m_Prevpos, m_Pos;
private float m_SteerAngle;
private int m_GearNum;
private float m_GearFactor;
private float m_OldRotation;
private float m_CurrentTorque;
private Rigidbody m_Rigidbody;
private const float k_ReversingThreshold = 0.01f;
public bool Skidding { get; private set; }
public float BrakeInput { get; private set; }
public float CurrentSteerAngle{ get { return m_SteerAngle; }}
public float CurrentSpeed{ get { return m_Rigidbody.velocity.magnitude*2.23693629f; }}
public float MaxSpeed{get { return m_Topspeed; }}
public float Revs { get; private set; }
public float AccelInput { get; private set; }
// Use this for initialization
private void Start()
{
m_WheelMeshLocalRotations = new Quaternion[4];
for (int i = 0; i < 4; i++)
{
m_WheelMeshLocalRotations[i] = m_WheelMeshes[i].transform.localRotation;
}
m_WheelColliders[0].attachedRigidbody.centerOfMass = m_CentreOfMassOffset;
m_MaxHandbrakeTorque = float.MaxValue;
m_Rigidbody = GetComponent<Rigidbody>();
m_CurrentTorque = m_FullTorqueOverAllWheels - (m_TractionControl*m_FullTorqueOverAllWheels);
}
private void GearChanging()
{
float f = Mathf.Abs(CurrentSpeed/MaxSpeed);
float upgearlimit = (1/(float) NoOfGears)*(m_GearNum + 1);
float downgearlimit = (1/(float) NoOfGears)*m_GearNum;
if (m_GearNum > 0 && f < downgearlimit)
{
m_GearNum--;
}
if (f > upgearlimit && (m_GearNum < (NoOfGears - 1)))
{
m_GearNum++;
}
}
// simple function to add a curved bias towards 1 for a value in the 0-1 range
private static float CurveFactor(float factor)
{
return 1 - (1 - factor)*(1 - factor);
}
// unclamped version of Lerp, to allow value to exceed the from-to range
private static float ULerp(float from, float to, float value)
{
return (1.0f - value)*from + value*to;
}
private void CalculateGearFactor()
{
float f = (1/(float) NoOfGears);
// gear factor is a normalised representation of the current speed within the current gear's range of speeds.
// We smooth towards the 'target' gear factor, so that revs don't instantly snap up or down when changing gear.
var targetGearFactor = Mathf.InverseLerp(f*m_GearNum, f*(m_GearNum + 1), Mathf.Abs(CurrentSpeed/MaxSpeed));
m_GearFactor = Mathf.Lerp(m_GearFactor, targetGearFactor, Time.deltaTime*5f);
}
private void CalculateRevs()
{
// calculate engine revs (for display / sound)
// (this is done in retrospect - revs are not used in force/power calculations)
CalculateGearFactor();
var gearNumFactor = m_GearNum/(float) NoOfGears;
var revsRangeMin = ULerp(0f, m_RevRangeBoundary, CurveFactor(gearNumFactor));
var revsRangeMax = ULerp(m_RevRangeBoundary, 1f, gearNumFactor);
Revs = ULerp(revsRangeMin, revsRangeMax, m_GearFactor);
}
public void Move(float steering, float accel, float footbrake, float handbrake)
{
for (int i = 0; i < 4; i++)
{
Quaternion quat;
Vector3 position;
m_WheelColliders[i].GetWorldPose(out position, out quat);
m_WheelMeshes[i].transform.position = position;
m_WheelMeshes[i].transform.rotation = quat;
}
//clamp input values
steering = Mathf.Clamp(steering, -1, 1);
AccelInput = accel = Mathf.Clamp(accel, 0, 1);
BrakeInput = footbrake = -1*Mathf.Clamp(footbrake, -1, 0);
handbrake = Mathf.Clamp(handbrake, 0, 1);
//Set the steer on the front wheels.
//Assuming that wheels 0 and 1 are the front wheels.
m_SteerAngle = steering*m_MaximumSteerAngle;
m_WheelColliders[0].steerAngle = m_SteerAngle;
m_WheelColliders[1].steerAngle = m_SteerAngle;
SteerHelper();
ApplyDrive(accel, footbrake);
CapSpeed();
//Set the handbrake.
//Assuming that wheels 2 and 3 are the rear wheels.
if (handbrake > 0f)
{
var hbTorque = handbrake*m_MaxHandbrakeTorque;
m_WheelColliders[2].brakeTorque = hbTorque;
m_WheelColliders[3].brakeTorque = hbTorque;
}
CalculateRevs();
GearChanging();
AddDownForce();
CheckForWheelSpin();
TractionControl();
}
private void CapSpeed()
{
float speed = m_Rigidbody.velocity.magnitude;
switch (m_SpeedType)
{
case SpeedType.MPH:
speed *= 2.23693629f;
if (speed > m_Topspeed)
m_Rigidbody.velocity = (m_Topspeed/2.23693629f) * m_Rigidbody.velocity.normalized;
break;
case SpeedType.KPH:
speed *= 3.6f;
if (speed > m_Topspeed)
m_Rigidbody.velocity = (m_Topspeed/3.6f) * m_Rigidbody.velocity.normalized;
break;
}
}
private void ApplyDrive(float accel, float footbrake)
{
float thrustTorque;
switch (m_CarDriveType)
{
case CarDriveType.FourWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 4f);
for (int i = 0; i < 4; i++)
{
m_WheelColliders[i].motorTorque = thrustTorque;
}
break;
case CarDriveType.FrontWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 2f);
m_WheelColliders[0].motorTorque = m_WheelColliders[1].motorTorque = thrustTorque;
break;
case CarDriveType.RearWheelDrive:
thrustTorque = accel * (m_CurrentTorque / 2f);
m_WheelColliders[2].motorTorque = m_WheelColliders[3].motorTorque = thrustTorque;
break;
}
for (int i = 0; i < 4; i++)
{
if (CurrentSpeed > 5 && Vector3.Angle(transform.forward, m_Rigidbody.velocity) < 50f)
{
m_WheelColliders[i].brakeTorque = m_BrakeTorque*footbrake;
}
else if (footbrake > 0)
{
m_WheelColliders[i].brakeTorque = 0f;
m_WheelColliders[i].motorTorque = -m_ReverseTorque*footbrake;
}
}
}
private void SteerHelper()
{
for (int i = 0; i < 4; i++)
{
WheelHit wheelhit;
m_WheelColliders[i].GetGroundHit(out wheelhit);
if (wheelhit.normal == Vector3.zero)
return; // wheels arent on the ground so dont realign the rigidbody velocity
}
// this if is needed to avoid gimbal lock problems that will make the car suddenly shift direction
if (Mathf.Abs(m_OldRotation - transform.eulerAngles.y) < 10f)
{
var turnadjust = (transform.eulerAngles.y - m_OldRotation) * m_SteerHelper;
Quaternion velRotation = Quaternion.AngleAxis(turnadjust, Vector3.up);
m_Rigidbody.velocity = velRotation * m_Rigidbody.velocity;
}
m_OldRotation = transform.eulerAngles.y;
}
// this is used to add more grip in relation to speed
private void AddDownForce()
{
m_WheelColliders[0].attachedRigidbody.AddForce(-transform.up*m_Downforce*
m_WheelColliders[0].attachedRigidbody.velocity.magnitude);
}
// checks if the wheels are spinning and is so does three things
// 1) emits particles
// 2) plays tiure skidding sounds
// 3) leaves skidmarks on the ground
// these effects are controlled through the WheelEffects class
private void CheckForWheelSpin()
{
// loop through all wheels
for (int i = 0; i < 4; i++)
{
WheelHit wheelHit;
m_WheelColliders[i].GetGroundHit(out wheelHit);
// is the tire slipping above the given threshhold
if (Mathf.Abs(wheelHit.forwardSlip) >= m_SlipLimit || Mathf.Abs(wheelHit.sidewaysSlip) >= m_SlipLimit)
{
m_WheelEffects[i].EmitTyreSmoke();
// avoiding all four tires screeching at the same time
// if they do it can lead to some strange audio artefacts
if (!AnySkidSoundPlaying())
{
m_WheelEffects[i].PlayAudio();
}
continue;
}
// if it wasnt slipping stop all the audio
if (m_WheelEffects[i].PlayingAudio)
{
m_WheelEffects[i].StopAudio();
}
// end the trail generation
m_WheelEffects[i].EndSkidTrail();
}
}
// crude traction control that reduces the power to wheel if the car is wheel spinning too much
private void TractionControl()
{
WheelHit wheelHit;
switch (m_CarDriveType)
{
case CarDriveType.FourWheelDrive:
// loop through all wheels
for (int i = 0; i < 4; i++)
{
m_WheelColliders[i].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
}
break;
case CarDriveType.RearWheelDrive:
m_WheelColliders[2].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
m_WheelColliders[3].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
break;
case CarDriveType.FrontWheelDrive:
m_WheelColliders[0].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
m_WheelColliders[1].GetGroundHit(out wheelHit);
AdjustTorque(wheelHit.forwardSlip);
break;
}
}
private void AdjustTorque(float forwardSlip)
{
if (forwardSlip >= m_SlipLimit && m_CurrentTorque >= 0)
{
m_CurrentTorque -= 10 * m_TractionControl;
}
else
{
m_CurrentTorque += 10 * m_TractionControl;
if (m_CurrentTorque > m_FullTorqueOverAllWheels)
{
m_CurrentTorque = m_FullTorqueOverAllWheels;
}
}
}
private bool AnySkidSoundPlaying()
{
for (int i = 0; i < 4; i++)
{
if (m_WheelEffects[i].PlayingAudio)
{
return true;
}
}
return false;
}
}
}
//NuggetsGames Is Not a Developer
// delete the // for Working
