private void updateCameraCommon()
{
speedCoeff = MathR.Max(veh.Speed, veh.Velocity.Magnitude() * 0.045454f);
pointAt = veh.Position + fullHeightOffset + (veh.ForwardVector * computeLookFrontOffset(speedCoeff, script.smoothIsInAir));
fullLongitudeOffset = (distanceOffset + currentVehicleLongitudeOffset) /* + vehDummyOffset*/ + towedVehicleLongitude;
finalDummyOffset = MathR.Lerp(vehDummyOffset, vehDummyOffsetHighSpeed, speedCoeff / (maxHighSpeed * 1.6f));
// no offset if car is in the air
finalDummyOffset = MathR.Lerp(finalDummyOffset, 0f, script.smoothIsInAir);
currentDistanceIncrement = 0f;
if (increaseDistanceAtHighSpeed)
{
var factor = veh.Speed / maxHighSpeed;
currentDistanceIncrement = MathR.Lerp(0f, maxHighSpeedDistanceIncrement, Easing.EaseOut(factor, useEasingForCamDistance ? EasingType.Cubic : EasingType.Linear));
}
if (accelerationAffectsCamDistance)
{
var factor = getVehicleAcceleration() / (maxHighSpeed * 10f);
currentDistanceIncrement += MathR.Lerp(0f, accelerationCamDistanceMultiplier, Easing.EaseOut(factor, useEasingForCamDistance ? EasingType.Quadratic : EasingType.Linear));
}
}
private float getFixedVsVelocityFactor(float speedCoeff)
{
// If the car isn't moving, default to looking forwards
if (veh.Velocity.Magnitude() < nearlySttopedSpeed)
{
return(0f);
}
else
{
// for bikes, always look at velocity
if (isCycleOrByke)
{
return(1f);
}
// if veh is in air, look at is velocity
if (veh.IsInAir || veh.CurrentGear == 0)
{
return(1f);
}
else // if is on the ground. fit camera (mostly) behind vehicle (for better drift control)
{
// Different factors for low/high speed
return(MathR.Lerp(velocityInfluenceLowSpeed, velocityInfluence, MathR.Clamp(speedCoeff / lowSpeedLimit, 0f, 1f)));
}
}
}
public void PointAt(Vector3 target)
{
var res = MathR.LookAt(position, target);
quaternion = res;
rotation = res.ToEulerAngles();
}
public static Quaternion XLookRotation(Vector3 direction, Vector3 up)
{
Quaternion rightToForward = Quaternion.Euler(0f, 90f, 0f);
Quaternion forwardToTarget = MathR.LookRotationInternalY(direction, up);
return(forwardToTarget * rightToForward);
}
private void updateCameraCommon()
{
smoothIsInAir = MathR.Lerp(smoothIsInAir, veh.IsInAir || veh.IsUpsideDown ? 1f : 0f, 2f * getDeltaTime());
smoothIsRearGear = MathR.Lerp(smoothIsRearGear, veh.CurrentGear == 0 ? 1f : 0f, 1.3f * getDeltaTime());
//speedCoeff = MathR.Max(veh.Speed, veh.Velocity.Magnitude() * 0.045454f);
//pointAt = veh.Position + fullHeightOffset + (veh.ForwardVector * computeLookFrontOffset(veh, speedCoeff, smoothIsInAir));
}
public static float LerpAngle(float a, float b, float t)
{
float num = MathR.Repeat(b - a, 360f);
if ((double)num > 180.0)
{
num -= 360f;
}
return(a + num * MathR.Clamp01(t));
}
private Quaternion getRotationFromAverageWheelPosBike()
{
// Front
var fPos = veh.GetBoneCoord("wheel_lf");
// Rear
var rPos = veh.GetBoneCoord("wheel_lr");
var dir = fPos - rPos;
return MathR.XLookRotation(dir);
}
private float computeLookFrontOffset(float speedCoeff, float smoothIsInAir)
{
var speed = speedCoeff;
var factor = MathR.InverseLerp(lookLowSpeedStart, lookLowSpeedEnd, speedCoeff);
var res = MathR.Lerp(lookFrontOffsetLowSpeed, lookFrontOffset, factor);
// No offset while in air
res = MathR.Lerp(res, 0f, script.smoothIsInAir);
return(res);
}
public static Quaternion QuaternionFromMatrix(Matrix m)
{
// Adapted from: http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
Quaternion q = new Quaternion();
q.W = MathR.Sqrt(MathR.Max(0, 1 + m[0, 0] + m[1, 1] + m[2, 2])) / 2;
q.X = MathR.Sqrt(MathR.Max(0, 1 + m[0, 0] - m[1, 1] - m[2, 2])) / 2;
q.Y = MathR.Sqrt(MathR.Max(0, 1 - m[0, 0] + m[1, 1] - m[2, 2])) / 2;
q.Z = MathR.Sqrt(MathR.Max(0, 1 - m[0, 0] - m[1, 1] + m[2, 2])) / 2;
q.X *= MathR.Sign(q.X * (m[2, 1] - m[1, 2]));
q.Y *= MathR.Sign(q.Y * (m[0, 2] - m[2, 0]));
q.Z *= MathR.Sign(q.Z * (m[1, 0] - m[0, 1]));
return(q);
}
public void updateCameraCommon()
{
fullLongitudeOffset = distanceOffset + currentVehicleLongitudeOffset + towedVehicleLongitude;
currentDistanceIncrement = 0f;
if (increaseDistanceAtHighSpeed)
{
var factor = veh.Speed / maxHighSpeed;
currentDistanceIncrement = MathR.Lerp(0f, maxHighSpeedDistanceIncrement, Easing.EaseOut(factor, useEasingForCamDistance ? EasingType.Cubic : EasingType.Linear));
}
if (accelerationAffectsCamDistance)
{
var factor = getVehicleAcceleration() / (maxHighSpeed * 10f);
currentDistanceIncrement += MathR.Lerp(0f, accelerationCamDistanceMultiplier, Easing.EaseOut(factor, useEasingForCamDistance ? EasingType.Quadratic : EasingType.Linear));
}
}
private Quaternion getSurfaceNormalRotation()
{
frameCounter++;
bool proccess = frameCounter % 3 == 0; // Only proccess every 3 frames (Raycast seems to be slow on SHVDN)
frameCounter = frameCounter % 9;
if(proccess)
{
var raycast = World.Raycast(veh.Position, Vector3.WorldDown, 2f, IntersectOptions.Map, veh);
if (raycast.DitHitAnything)
{
cachedRaycastDir = MathR.OrthoNormalize(raycast.SurfaceNormal, veh.ForwardVector);
//cachedRaycastDir = Vector3.Cross(raycast.SurfaceNormal, veh.RightVector).Normalized;
}
}
return MathR.XLookRotation(cachedRaycastDir);
}
private Quaternion getRotationFromAverageWheelPosCar()
{
// Front Left
var flPos = veh.GetBoneCoord("wheel_lf");
// Front Right
var frPos = veh.GetBoneCoord("wheel_rf");
var frontAverage = (flPos + frPos) * 0.5f;
// Rear Left
var rlPos = veh.GetBoneCoord("wheel_lr");
// Rear Right
var rrPos = veh.GetBoneCoord("wheel_rr");
var rearAverage = (rlPos + rrPos) * 0.5f;
var dir = frontAverage - rearAverage;
return MathR.XLookRotation(dir);
}
public static float Repeat(float t, float length)
{
return(t - MathR.Floor(t / length) * length);
}
private Transform UpdateCameraRear()
{
// smooth out current rotation and position
currentRotation = MathR.EulerNlerp(currentRotation, rearCamCurrentTransform.quaternion, (responsivenessMultiplier * generalMovementSpeed) * Time.getDeltaTime());
currentPos = Vector3.Lerp(currentPos, rearCamCurrentTransform.position, MathR.Clamp01((responsivenessMultiplier * generalMovementSpeed) * Time.getDeltaTime()));
Quaternion look;
var wantedPos = veh.Position + (veh.ForwardVector * finalDummyOffset);
// If veh has towed vehicle, increase camera distance by towed vehicle longitude
// should camera be attached to vehicle's back or back his velocity
var fixedVsVelocity = getFixedVsVelocityFactor(speedCoeff);
Quaternion vehQuat = veh.Quaternion;
// Compute camera position rear the vechicle
var wantedPosFixed = wantedPos - veh.Quaternion * Vector3.RelativeFront * fullLongitudeOffset;
// smooth out velocity
// Compute camera postition rear the direction of the vehcle
if (speedCoeff >= stoppedSpeed)
{
wantedPosVelocity = wantedPos + MathR.QuaternionLookRotation(smoothVelocity) * Vector3.RelativeBottom * fullLongitudeOffset;
}
// Smooth factor between two above cam positions
smoothFixedVsVelocity = MathR.Lerp(smoothFixedVsVelocity, fixedVsVelocity, (fixedVsVelocitySpeed) * Time.getDeltaTime());
if (!isCycleOrByke)
{
tempSmoothVsVl = MathR.Lerp(tempSmoothVsVl, MathR.Clamp(speedCoeff * 0.4347826f, 0.025f, 1f), (fixedVsVelocitySpeed * 0.05f));
smoothFixedVsVelocity = MathR.Lerp(0f, smoothFixedVsVelocity, tempSmoothVsVl);
}
wantedPos = Vector3.Lerp(wantedPosFixed, wantedPosVelocity, MathR.Clamp01(smoothFixedVsVelocity));
//currentPos = Vector3.Lerp(currentPos, wantedPos, Mathr.Clamp01((responsivenessMultiplier * cameraStickiness) * Time.getDeltaTime()));
currentPos = Vector3.Lerp(currentPos, wantedPos, MathR.Clamp01((responsivenessMultiplier * cameraStickiness) * Time.getDeltaTime()));
//rearCamCurrentTransform.position = currentPos;
targetCamera.PointAt(pointAt);
look = Quaternion.Euler(targetCamera.Rotation);
// Rotate the camera towards the velocity vector.
var finalCamRotationSpeed = MathR.Lerp(cameraRotationSpeedLowSpeed, cameraRotationSpeed, ((speedCoeff / lowSpeedLimit) * 1.32f) * Time.getDeltaTime() * 51f);
look = MathR.EulerNlerp(currentRotation, look, (1.8f * finalCamRotationSpeed) * Time.getDeltaTime());
// Fix stuttering (mantain camera distance fixed in local space)
Transform fixedDistanceTr = new Transform(currentPos + fullHeightOffset + (Vector3.WorldUp * extraCamHeight), Quaternion.Identity);
fixedDistanceTr.PointAt(pointAt);
Quaternion finalQuat = fixedDistanceTr.quaternion;
if (script.isMouseLooking)
{
finalQuat = Quaternion.Lerp(finalQuat, getFreelookQuaternion(), script.smoothIsFreeLooking);
}
fixedDistanceTr.position = veh.Position + fullHeightOffset + (Vector3.WorldUp * extraCamHeight) + (finalQuat * Vector3.RelativeBack * (fullLongitudeOffset + currentDistanceIncrement));
//fixedDistanceTr.position = fixedDistanceTr.position + fullHeightOffset;
var transform = new Transform();
transform.position = fixedDistanceTr.position;
//transform.position = currentPos + fullHeightOffset;
transform.rotation = look.ToEulerAngles();
transform.quaternion = look;
rearCamCurrentTransform = transform;
return(transform);
}
public static float Lerp(float value1, float value2, float ammount)
{
return(value1 + (value2 - value1) * MathR.Clamp01(ammount));
}
// Cheaper than Slerp
public static Quaternion EulerNlerp(Quaternion start, Quaternion end, float ammount)
{
return(QuaternionFromEuler(Vector3.Lerp(start.ToEulerAngles(), end.ToEulerAngles(), MathR.Clamp01(ammount)).Normalized));
}
public override void updateCamera()
{
base.updateCamera();
updateCameraCommon();
var camExtraHeightV3 = Vector3.WorldUp * extraCamHeight;
var posCenter = veh.Position + fullHeightOffset;
float rotSpeed = rotationSpeed;
if(useVariableRotSpeed)
{
var desiredRootSpeed = MathR.SmoothStep(minRotSpeed, maxRotSpeed, MathR.Clamp01(AngleInDeg(veh.ForwardVector, veh.Velocity) / 90));
currentRootSpeed = MathR.Lerp(currentRootSpeed, desiredRootSpeed, 2f * Time.getDeltaTime());
}
if (veh.Speed > 1f)
{
//velQuat = MathR.LookRotation(veh.Velocity, Vector3.WorldUp);
velocityQuat = MathR.XLookRotation(smoothVelocity);
}
Quaternion vehQuat;
if(isCycleOrByke)
{
// Bykes / cycles (avoid unwanted cam rotations during wheelies/stoppies)
if (veh.Speed < 3f)
{
if(veh.IsOnAllWheels)
vehQuat = getRotationFromAverageWheelPosBike();
else
vehQuat = getSurfaceNormalRotation(); // Possibly unperformant (using it only for wheelie/stoppie al low speeds)
}
else
vehQuat = velocityQuat;
}
else // cars
{
if(avoidCameraBouncinessCar && veh.IsOnAllWheels)
{
vehQuat = getRotationFromAverageWheelPosCar(); // Avoid camera movements caused by car suspension movement (wheels are on the floor)
}
else
{
vehQuat = veh.Quaternion;
}
}
//smoothQuat = MathR.QuatNlerp(smoothQuat, veh.Quaternion, MathR.Clamp01(rotationSpeed * Time.getDeltaTime()));
smoothQuat = Quaternion.SlerpUnclamped(smoothQuat, vehQuat, rotationSpeed * Time.getDeltaTime());
smoothVelQuat = Quaternion.Lerp(smoothVelQuat, velocityQuat, 2f * Time.getDeltaTime());
finalQuat = Quaternion.Lerp(smoothQuat, velocityQuat, script.smoothIsInAir);
float finalDistMult = 1f;
if (veh.Speed > 0.15f)
{
// TODO Optimize?
finalDistMult = Vector3.Angle(finalQuat * Vector3.RelativeFront, veh.Velocity) / 180f;
finalDistMult = MathR.Lerp(1f, -1f, finalDistMult);
}
if(script.isMouseLooking)
{
finalQuat = Quaternion.Lerp(finalQuat, getFreelookQuaternion(), script.smoothIsFreeLooking);
}
targetCamera.Position = posCenter + camExtraHeightV3 + (finalQuat * Vector3.RelativeBack * (fullLongitudeOffset + ( currentDistanceIncrement * finalDistMult )));
var pointAt = posCenter - finalQuat * Vector3.RelativeBack * (currentDistanceIncrement + 2f);
targetCamera.PointAt(pointAt);
}
public float AngleInRad(Vector3 vec1, Vector3 vec2)
{
return MathR.Atan2(vec2.Y - vec1.Y, vec2.X - vec1.X);
}
public Quaternion getFreelookQuaternion()
{
return(MathR.LookAt(Vector3.Zero, GameplayCamera.Direction));
}
