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public abstract Evaluate ( float t, |
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| t | float | |
| tangent | ||
| curvature | ||
| return | ||
protected static Vector3[] GetCurvePositions(Curve curve, int resolution, Vector3[] controlPoints)
{
var pointsOnCurve = new Vector3[resolution + 1];
pointsOnCurve[0] = controlPoints[0];
var tangent = Vector3.zero;
var curvature = Vector3.zero;
for (var j = 1; j <= resolution; j++)
{
var t = 1f / resolution * j;
pointsOnCurve[j] = curve.Evaluate(t, out tangent, out curvature);
}
return(pointsOnCurve);
}
protected static Vector3[] GetCurvePositions(Curve curve, int resolution, Vector3[] controlPoints)
{
var pointsOnCurve = new Vector3[resolution + 1];
pointsOnCurve[0] = controlPoints[0];
var tangent = Vector3.zero;
var curvature = Vector3.zero;
for (var j = 1; j <= resolution; j++)
{
var t = 1f / resolution * j;
pointsOnCurve[j] = curve.Evaluate(t, out tangent, out curvature);
}
return pointsOnCurve;
}
public void MoveAlongCurve(float time, float speed, out Vector3 position, out Quaternion rotation)
{
position = _prevPosition;
rotation = _prevRotation;
if (Curve == null)
{
Debug.LogError("No assigned Path to follow!");
return;
}
_positionAlongCurve += speed * (time - _prevTime); // alows for variable speed but involves deltas (cant be determined at a time with a single call)
var linearTime = GetLinearTimeOnCurve(_positionAlongCurve);
if (linearTime >= 1f)
{
Evt_ReachedEnd(_prevTime + (_positionAlongCurve - Curve.Length) / speed); // send up time at which end was reached
return;
}
// Update pos
Vector3 tangent;
Vector3 curvature;
position = Curve.Evaluate(linearTime, out tangent, out curvature);
float bankAngle = 0f;
if (_maxBankAngle > 0 && _bankSmoothing > 0f)
{
// Compute Bank
var targetBankAngle = Curve.GetBankAngle(tangent, curvature, _maxBankAngle);
bankAngle = Mathf.Lerp(_prevBankAngle, targetBankAngle, Time.deltaTime / _bankSmoothing);
_prevBankAngle = bankAngle;
}
if (_maxDrift > 0 && speed > 0)
{
// Compute Drift
var futurePosOnCurveDist = _positionAlongCurve + (speed * _maxDrift);
futurePosOnCurveDist = Mathf.Clamp(futurePosOnCurveDist, 0f, Curve.Length);
var futurePosOnCurve = Curve.Evaluate(GetLinearTimeOnCurve(futurePosOnCurveDist), out tangent, out curvature);
Debug.DrawLine(position, futurePosOnCurve);
rotation = Quaternion.LookRotation((futurePosOnCurve - position).normalized);
}
else if (tangent.normalized != Vector3.zero)
{
rotation = Quaternion.LookRotation(tangent.normalized);
}
if (bankAngle != 0)
{
rotation *= Quaternion.AngleAxis(bankAngle, Vector3.forward);
}
Debug.Log(Vector3.Distance(_prevPosition, position));
_prevPosition = position;
_prevRotation = rotation;
_prevTime = time;
}
