public VehicleWheel( WheelCollider vehicleWheel,
WheelComponent wheelComponent,
WheelPosition frontRear,
WheelPosition leftRight )
{
wheelFrontRear = frontRear;
wheelLeftRight = leftRight;
checkCurrentWheelState = WheelsOnGround.WHEEL_ON_GROUND;
mainWheelCollider = vehicleWheel;
wheelPhysicsComponent = wheelComponent;
visualWheel = vehicleWheel.GetComponentInChildren<MeshRenderer>( ).transform;
wheelRadius = ( visualWheel.GetComponent<Renderer>().bounds.size.y / 2 );
mainWheelCollider.radius = wheelRadius;
mainWheelCollider.GetGroundHit( out wheelGroundContactPoint );
}
public bool Initialize(WheelComponent wheelComponent, GameObject skidmarkContainer,
float minDistance,
int surfaceMapCount, int maxMarks, bool persistent, float persistentDistance,
float groundOffset, float smoothing, float lowerIntensityThreshold, bool fadeOverDistance, Material fallbackMaterial)
{
_targetWheelComponent = wheelComponent;
_minSqrDistance = minDistance * minDistance;
_maxMarks = maxMarks;
_surfaceMapCount = surfaceMapCount;
_persistent = persistent;
_persistentDistance = persistentDistance;
_fadeOverDistance = !persistent && fadeOverDistance;
_groundOffset = groundOffset;
_smoothing = smoothing;
_lowerIntensityThreshold = lowerIntensityThreshold;
_skidmarkContainer = skidmarkContainer;
_fallbackMaterial = fallbackMaterial;
_maxTris = maxMarks * 6;
_outTriArray = new int[_maxTris];
_markWidth = wheelComponent.Width;
_isInitial = true;
_prevSurfaceMapIndex = _surfaceMapIndex;
GenerateNewSection();
return(true);
}
public void CalculateCamber()
{
if (isSolid && Wheels.Count == 2) // Calculate and set solid axle camber
{
WheelComponent leftWheel = Wheels[0];
WheelComponent rightWheel = Wheels[1];
// Center point of imaginary axle
_position = (leftWheel.wheelController.springTravelPoint +
rightWheel.wheelController.springTravelPoint) / 2f;
_direction = _position - leftWheel.wheelController.springTravelPoint;
// Calculate camber from the mid point
float camberAngle = Vector3.SignedAngle(_vc.transform.right, _direction, _vc.transform.forward);
camberAngle = Mathf.Clamp(camberAngle, -25f, 25f);
// Set camber
leftWheel.wheelController.SetCamber(camberAngle);
rightWheel.wheelController.SetCamber(-camberAngle);
camberAtBottom = camberAtTop = camberAngle;
}
else // Set normal camber
{
foreach (WheelComponent wheel in Wheels)
{
wheel.wheelController.SetCamber(camberAtTop, camberAtBottom);
}
}
}
private WheelComponent SetWheelComponent(Transform wheel, Transform axle, bool drive, float maxSteer, float pos_y)
{
WheelComponent result = new WheelComponent();
GameObject wheelCol = new GameObject(wheel.name + "WheelCollider");
wheelCol.transform.parent = transform;
wheelCol.transform.position = wheel.position;
wheelCol.transform.eulerAngles = transform.eulerAngles;
pos_y = wheelCol.transform.localPosition.y;
wheelCol.AddComponent(typeof(WheelCollider));
result.drive = drive;
result.wheel = wheel;
result.axle = axle;
result.collider = wheelCol.GetComponent <WheelCollider>();
result.pos_y = pos_y;
result.maxSteer = maxSteer;
result.startPos = axle.transform.localPosition;
return(result);
}
public override bool OnNUI(Rect rect, SerializedProperty property, GUIContent label)
{
List <string> options = new List <string> {
"[no axle]"
};
// Try to get vehicle controller from parent property
vc = property.serializedObject.targetObject as VehicleController;
if (vc == null)
{
selectedIndex = EditorGUI.Popup(rect, "Belongs to", 0, options.ToArray());
return(false);
}
// Find the name and index of currently selected output
groupIndexProperty = property.FindPropertyRelative("index");
if (groupIndexProperty == null)
{
Debug.LogWarning("Property axleIndex not found.");
return(false);
}
int axleIndex = groupIndexProperty.intValue;
int selectorIndex = axleIndex + 1;
string name = axleIndex >= vc.powertrain.wheelGroups.Count || axleIndex < 0
? ""
: vc.powertrain.wheelGroups[axleIndex].name;
// Add the names of other powertrain components
for (int i = 0; i < vc.powertrain.wheelGroups.Count; i++)
{
options.Add($"{vc.powertrain.wheelGroups[i].name} [Group {i.ToString()}]");
}
// Display dropdown menu
selectedIndex = EditorGUI.Popup(new Rect(rect.x, rect.y, rect.width, NUISettings.FIELD_HEIGHT),
"Belongs to", selectorIndex, options.ToArray());
// Display currently selected output
groupIndexProperty.intValue = selectedIndex - 1;
if (selectedIndex > 0 && selectedIndex <= vc.powertrain.wheelGroups.Count)
{
WheelComponent wheelComponent =
SerializedPropertyHelper.GetTargetObjectWithProperty(property) as WheelComponent;
if (wheelComponent != null)
{
wheelComponent.wheelGroup = vc.powertrain.wheelGroups[selectedIndex - 1];
}
else
{
Debug.LogWarning("WheelComponent property not found. Wheel group will not be set.");
}
}
return(true);
}
public void CalculateARB()
{
if (Wheels.Count != 2)
{
return;
}
WheelComponent leftWheel = Wheels[0];
WheelComponent rightWheel = Wheels[1];
// Apply anti roll bar
if (antiRollBarForce > 0)
{
float leftTravel = leftWheel.SpringTravel;
float rightTravel = rightWheel.SpringTravel;
// Cylindrical steel shaft of which ARBs are usually made have ~linear torque vs. angle of twist characteristic
// for the low twist angle values.
float springLengthDiff = leftWheel.wheelController.spring.length -
rightWheel.wheelController.spring.length;
_arbForce = springLengthDiff * antiRollBarForce;
if (leftWheel.IsGrounded || rightWheel.IsGrounded)
{
// Apply the ARB force at the shock anchor point.
_vc.vehicleRigidbody.AddForceAtPosition(leftWheel.ControllerTransform.up * -_arbForce,
leftWheel.ControllerTransform.position);
_vc.vehicleRigidbody.AddForceAtPosition(rightWheel.ControllerTransform.up * _arbForce,
rightWheel.ControllerTransform.position);
}
}
}
public void Initialize(VehicleController vc, WheelComponent wheelComponent)
{
_vc = vc;
_wheelComponent = wheelComponent;
if (!vc.groundDetection.IsEnabled || vc.groundDetection.groundDetectionPreset == null)
{
return;
}
// Initialize particles
if (vc.groundDetection.groundDetectionPreset.particlePrefab != null)
{
particlePrefab = Object.Instantiate(
vc.groundDetection.groundDetectionPreset.particlePrefab,
wheelComponent.ControllerTransform,
true);
particlePrefab.transform.position = wheelComponent.wheelController.wheel.worldPosition
- wheelComponent.wheelController.cachedTransform.up * (wheelComponent.wheelController.radius * 0.5f);
particlePS = particlePrefab.GetComponent <ParticleSystem>();
particlePS.name = "SurfaceParticles";
ParticleSystem.ShapeModule shape = particlePS.shape;
shape.radius = wheelComponent.Width * 1.5f;
_shapeModule = particlePS.shape;
_shapeModule.radius = wheelComponent.Width;
}
else
{
Debug.LogWarning("Smoke Prefab is null, wheel slip will not produce particles.");
}
// Initialize chunks
if (vc.groundDetection.groundDetectionPreset.chunkPrefab != null)
{
chunkPrefab = Object.Instantiate(
vc.groundDetection.groundDetectionPreset.chunkPrefab,
wheelComponent.ControllerTransform,
true);
chunkPrefab.transform.position = wheelComponent.wheelController.wheel.worldPosition
- wheelComponent.wheelController.cachedTransform.up *
wheelComponent.wheelController.radius
- wheelComponent.wheelController.cachedTransform.forward *
(wheelComponent.wheelController.radius * 0.7f);
chunkPS = chunkPrefab.GetComponent <ParticleSystem>();
chunkPS.name = "SurfaceChunks";
_shapeModule = chunkPS.shape;
_shapeModule.radius = wheelComponent.Width;
}
else
{
Debug.LogWarning("Dust Prefab is null, there will be no surface dust.");
}
_initialized = true;
}
private void Start ( )
{
vehicleWheels = new WheelCollider[ ]{ frontRightWheel,
frontLeftWheel,
rearRightWheel,
rearLeftWheel };
gearsComponent = new GearsComponent( 6, 180 );
wheelComponent = new WheelComponent( gameObject );
engineComponent = gameObject.AddComponent<EngineComponent>( );
engineComponent.Start( );
UnityWheelBugFix( );
}
public override void Initialize()
{
_wheelCount = vc.Wheels.Count;
for (int index = 0; index < _wheelCount; index++)
{
WheelComponent wheel = vc.Wheels[index];
AudioSource a = wheel.ControllerGO.AddComponent <AudioSource>();
vc.soundManager.SetAudioSourceDefaults(a, true, true);
Sources.Add(a);
}
AddSourcesToMixer();
_prevVolume = new float[_wheelCount];
_prevPitch = new float[_wheelCount];
initialized = true;
}
public override bool OnNUI(Rect position, SerializedProperty property, GUIContent label)
{
if (!base.OnNUI(position, property, label))
{
return(false);
}
drawer.Field("groundDetectionPreset");
GroundDetectionPreset gdPreset =
((GroundDetection)(SerializedPropertyHelper.GetTargetObjectOfProperty(property)
as VehicleComponent))?.groundDetectionPreset;
if (gdPreset != null)
{
drawer.EmbeddedObjectEditor(gdPreset, drawer.positionRect);
}
drawer.BeginSubsection("Debug Info");
GroundDetection groundDetection =
SerializedPropertyHelper.GetTargetObjectOfProperty(drawer.serializedProperty) as GroundDetection;
if (groundDetection != null && groundDetection.VehicleController != null)
{
for (int i = 0; i < groundDetection.VehicleController.powertrain.wheels.Count; i++)
{
WheelComponent wheelComponent = groundDetection.VehicleController.powertrain.wheels[i];
if (wheelComponent != null)
{
drawer.Label($"{wheelComponent.name}: {wheelComponent.surfacePreset?.name} SurfacePreset");
}
}
}
else
{
drawer.Info("Debug info is available only in play mode.");
}
drawer.EndSubsection();
drawer.EndProperty();
return(true);
}
private WheelComponent SetWheelComponent(Transform wheel, Transform axle, bool drive, float maxSteer, float pos_y)
{
WheelComponent result = new WheelComponent();
GameObject wheelCol = new GameObject(wheel.name + "WheelCollider");
wheelCol.transform.parent = transform;
wheelCol.transform.position = wheel.position;
wheelCol.transform.eulerAngles = transform.eulerAngles;
pos_y = wheelCol.transform.localPosition.y;
wheelCol.AddComponent(typeof(WheelCollider));
result.drive = drive;
result.wheel = wheel;
result.axle = axle;
result.collider = wheelCol.GetComponent <WheelCollider>();
result.collider.radius = bikeWheels.setting.Radius;
result.collider.center = bikeWheels.setting.WheelCenter;
result.pos_y = pos_y;
result.maxSteer = maxSteer;
result.startPos = axle.transform.localPosition;
if (!drive)
{
// var spring = new JointSpring();
// spring.spring = 35000;
// spring.damper = 3500;
// spring.targetPosition = 0.7f;
// result.collider.suspensionSpring = spring;
}
// Physics.IgnoreCollision(result.collider, body);
// Physics.IgnoreCollision(result.collider, body);
return(result);
}
private WheelComponent SetWheelComponent(Transform wheel, Transform axle, bool drive, float maxSteer, float pos_y)
{
WheelComponent result = new WheelComponent();
GameObject wheelCol = new GameObject(wheel.name + "WheelCollider");
wheelCol.transform.parent = transform;
wheelCol.transform.position = wheel.position;
wheelCol.transform.eulerAngles = transform.eulerAngles;
pos_y = wheelCol.transform.localPosition.y;
wheel.gameObject.AddComponent <WheelCollider>();
WheelCollider col = (WheelCollider)wheelCol.AddComponent(typeof(WheelCollider));
//TODO: rewrite if we got some problem with wheels size
//col.transform.localScale = wheel.localScale;
float cof;
if (wheel.parent.localScale.x == 1f)
{
cof = wheel.localScale.x;
}
else
{
cof = wheel.parent.localScale.x;
}
col.radius = wheel.GetComponent <WheelCollider>().radius *cof;
Destroy(wheel.transform.GetComponent <WheelCollider>());
result.drive = drive;
result.wheel = wheel;
result.axle = axle;
result.collider = wheelCol.GetComponent <WheelCollider>();
result.pos_y = pos_y;
result.maxSteer = maxSteer;
result.startPos = wheelCol.transform.localPosition;
return(result);
}
public float BrakeTorqueModifier()
{
if (!Active)
{
return(1f);
}
active = false;
slipThreshold = slipThreshold < 0 ? 0 : slipThreshold > 1 ? 1 : slipThreshold;
// Prevent ABS from working in reverse and at low speeds
if (vc.ForwardVelocity < lowerSpeedThreshold)
{
return(1f);
}
if (vc.brakes.Active && !vc.powertrain.engine.revLimiterActive && vc.input.Handbrake < 0.1f)
{
for (int index = 0; index < vc.Wheels.Count; index++)
{
WheelComponent wheel = vc.Wheels[index];
if (!wheel.IsGrounded)
{
continue;
}
float longSlip = wheel.LongitudinalSlip;
if (longSlip > 0 && longSlip > slipThreshold)
{
active = true;
ABSActive.Invoke();
return(0.01f);
}
}
}
return(1f);
}
void Start()
{
wheelComponent = SetWheelComponent(wheel, axle, true, 0, axle.localPosition.y);
}
private WheelComponent SetWheelComponent(Transform wheel, Transform axle, bool drive, float maxSteer, float pos_y)
{
WheelComponent result = new WheelComponent();
GameObject wheelCol = new GameObject(wheel.name + "WheelCollider");
wheelCol.transform.parent = transform;
wheelCol.transform.position = wheel.position;
wheelCol.transform.eulerAngles = transform.eulerAngles;
pos_y = wheelCol.transform.localPosition.y;
wheel.gameObject.AddComponent<WheelCollider>();
WheelCollider col = (WheelCollider)wheelCol.AddComponent(typeof(WheelCollider));
//TODO: rewrite if we got some problem with wheels size
//col.transform.localScale = wheel.localScale;
float cof;
if(wheel.parent.localScale.x == 1f)
cof = wheel.localScale.x;
else
cof = wheel.parent.localScale.x;
col.radius = wheel.GetComponent<WheelCollider>().radius * cof;
Destroy(wheel.transform.GetComponent<WheelCollider>());
result.drive = drive;
result.wheel = wheel;
result.axle = axle;
result.collider = wheelCol.GetComponent<WheelCollider>();
result.pos_y = pos_y;
result.maxSteer = maxSteer;
result.startPos = wheelCol.transform.localPosition;
return result;
}
public override void Update()
{
if (!Active)
{
return;
}
for (int i = 0; i < _wheelCount; i++)
{
WheelComponent wheelComponent = vc.Wheels[i];
SurfacePreset surfacePreset = wheelComponent.surfacePreset;
float newVolume = 0;
float newPitch = basePitch;
if (wheelComponent.IsGrounded && surfacePreset != null && surfacePreset.playSurfaceSounds)
{
if (surfacePreset.surfaceSoundClip != null)
{
AudioSource source = Sources[i];
if (!source.isPlaying)
{
source.Play();
}
if (source.clip != surfacePreset.surfaceSoundClip)
{
// Change skid clip
source.clip = surfacePreset.surfaceSoundClip;
source.time = Random.Range(0f, surfacePreset.surfaceSoundClip.length);
source.time = Random.Range(0f, source.clip.length);
}
float surfaceModifier = 1f;
if (surfacePreset.slipSensitiveSurfaceSound)
{
surfaceModifier = wheelComponent.NormalizedLateralSlip / vc.longitudinalSlipThreshold;
surfaceModifier = surfaceModifier < 0 ? 0 : surfaceModifier > 1 ? 1 : surfaceModifier;
}
float speedCoeff = vc.Speed / 20f;
speedCoeff = speedCoeff < 0 ? 0 : speedCoeff > 1 ? 1 : speedCoeff;
// Change surface volume and pitch
newVolume = surfacePreset.surfaceSoundVolume * surfaceModifier * speedCoeff;
newVolume = newVolume < 0 ? 0 : newVolume > 1 ? 1 : newVolume;
newVolume = Mathf.Lerp(_prevVolume[i], newVolume, vc.deltaTime * 12f);
newPitch = surfacePreset.surfaceSoundPitch * 0.5f + speedCoeff;
}
}
else
{
newVolume = Mathf.Lerp(_prevVolume[i], 0, vc.deltaTime * 12f);
newPitch = Mathf.Lerp(_prevPitch[i], basePitch, vc.deltaTime * 12f);
}
SetVolume(newVolume, i);
SetPitch(newPitch, i);
_prevVolume[i] = newVolume;
_prevPitch[i] = newPitch;
}
}
public void Start ( )
{
vehiclePhysics = GetComponent<VehiclePhysics>( );
wheelComponent = vehiclePhysics.wheelComponent;
}
public override void Update()
{
if (!Active)
{
return;
}
// Check if can be updated
if (vc.groundDetection == null || !vc.groundDetection.IsEnabled)
{
return;
}
// Check for added/removed wheels and re-init if needed
int wheelCount = vc.powertrain.wheels.Count;
if (prevWheelCount != wheelCount)
{
initialized = false;
Initialize();
}
prevWheelCount = wheelCount;
// Update skidmarks
Debug.Assert(skidmarkGenerators.Count == vc.powertrain.wheels.Count,
"Skidmark generator count must equal wheel count");
int n = skidmarkGenerators.Count;
for (int i = 0; i < n; i++)
{
WheelComponent wheelComponent = vc.powertrain.wheels[i];
SurfacePreset surfacePreset = wheelComponent.surfacePreset;
if (surfacePreset == null || !surfacePreset.drawSkidmarks)
{
continue;
}
bool surfaceMapIsNull = surfacePreset == null;
int surfaceMapIndex = -1;
if (!surfaceMapIsNull)
{
surfaceMapIndex = wheelComponent.surfaceMapIndex;
}
float intensity = 1f;
if (surfaceMapIndex >= 0)
{
float latFactor = wheelComponent.NormalizedLateralSlip;
latFactor = latFactor < vc.lateralSlipThreshold ? 0 : latFactor - vc.lateralSlipThreshold;
float lonFactor = wheelComponent.NormalizedLongitudinalSlip;
lonFactor = lonFactor < vc.lateralSlipThreshold ? 0 : lonFactor - vc.lateralSlipThreshold;
float slipIntensity = latFactor + lonFactor;
float weightCoeff = wheelComponent.wheelController.wheel.load * 2f /
wheelComponent.wheelController.maximumTireLoad;
weightCoeff = weightCoeff <0 ? 0f : weightCoeff> 1f ? 1f : weightCoeff;
slipIntensity *= wheelComponent.surfacePreset.slipFactor * weightCoeff;
intensity = wheelComponent.surfacePreset.skidmarkBaseIntensity + slipIntensity;
intensity = intensity > 1f ? 1f : intensity < 0f ? 0f : intensity;
}
intensity *= globalSkidmarkIntensity;
intensity = intensity <0f ? 0f : intensity> maxSkidmarkAlpha ? maxSkidmarkAlpha : intensity;
float albedoIntensity = 0f;
float normalIntensity = 0f;
// TODO - check that fallback surface preset is not null
skidmarkGenerators[i].Update(surfaceMapIndex, intensity, albedoIntensity, normalIntensity,
wheelComponent.wheelController.pointVelocity, vc.fixedDeltaTime);
}
}
public void AddWheel(WheelComponent wheel)
{
Wheels.Add(wheel);
wheel.wheelGroup = this;
}
public override void Update()
{
if (!Active)
{
return;
}
float newVolume = 0;
float newPitch = basePitch;
if (vc.groundDetection != null)
{
for (int i = 0; i < _wheelCount; i++)
{
WheelComponent wheelComponent = vc.Wheels[i];
SurfacePreset surfacePreset = wheelComponent.surfacePreset;
bool hasSlip = wheelComponent.HasLateralSlip || wheelComponent.HasLongitudinalSlip;
if (wheelComponent.IsGrounded && surfacePreset != null && surfacePreset.playSkidSounds && hasSlip)
{
float slipPercent = wheelComponent.NormalizedLateralSlip +
wheelComponent.NormalizedLongitudinalSlip;
slipPercent = slipPercent < 0 ? 0 : slipPercent > 1 ? 1 : slipPercent;
if (surfacePreset.skidSoundClip != null)
{
AudioSource source = Sources[i];
if (!source.isPlaying)
{
source.Play();
}
if (source.clip != surfacePreset.skidSoundClip)
{
// Change skid clip
source.clip = surfacePreset.skidSoundClip;
source.time = Random.Range(0f, surfacePreset.skidSoundClip.length);
source.time = Random.Range(0f, source.clip.length);
}
float absAngVel = wheelComponent.angularVelocity < 0
? -wheelComponent.angularVelocity
: wheelComponent.angularVelocity;
float speedCoeff = vc.Speed / 3f + absAngVel / 20f;
speedCoeff = speedCoeff > 1f ? 1f : speedCoeff;
newVolume = slipPercent * surfacePreset.skidSoundVolume * speedCoeff;
newVolume = Mathf.Lerp(_prevVolume[i], newVolume, vc.deltaTime * 12f);
float loadCoeff = wheelComponent.wheelController.wheel.load /
wheelComponent.wheelController.maximumTireLoad;
loadCoeff = loadCoeff > 1f ? 1f : loadCoeff;
newPitch = surfacePreset.skidSoundPitch + loadCoeff * 0.3f;
newPitch = Mathf.Lerp(_prevPitch[i], newPitch, vc.deltaTime * 18f);
}
}
else
{
newVolume = 0;
newPitch = basePitch;
}
SetVolume(newVolume, i);
SetPitch(newPitch, i);
_prevVolume[i] = newVolume;
_prevPitch[i] = newPitch;
}
}
}
public void RemoveWheel(WheelComponent wheel)
{
Wheels.Remove(wheel);
}
