void FixedUpdateBuoyancy(ICollProvider collProvider)
{
float archimedesForceMagnitude = WATER_DENSITY * Mathf.Abs(Physics.gravity.y);
for (int i = 0; i < _forcePoints.Length; i++)
{
FloaterForcePoints point = _forcePoints[i];
var transformedPoint = transform.TransformPoint(point._offsetPosition + new Vector3(0, _centerOfMass.y, 0));
Vector3 undispPos;
if (!collProvider.ComputeUndisplacedPosition(ref transformedPoint, _samplingData, out undispPos))
{
// If we couldn't get wave shape, assume flat water at sea level
undispPos = transformedPoint;
undispPos.y = OceanRenderer.Instance.SeaLevel;
}
Vector3 displaced;
collProvider.SampleDisplacement(ref undispPos, _samplingData, out displaced);
var dispPos = undispPos + displaced;
var heightDiff = dispPos.y - transformedPoint.y;
if (heightDiff > 0)
{
RB.AddForceAtPosition(archimedesForceMagnitude * heightDiff * Vector3.up * point._weight * _forceMultiplier / _totalWeight, transformedPoint);
}
}
}
void FixedUpdateDrag(ICollProvider collProvider, Vector3 waterSurfaceVel)
{
// Apply drag relative to water
var pos = RB.position;
Vector3 undispPos;
if (!collProvider.ComputeUndisplacedPosition(ref pos, _samplingData, out undispPos))
{
// If we couldn't get wave shape, assume flat water at sea level
undispPos = pos;
undispPos.y = OceanRenderer.Instance.SeaLevel;
}
var _velocityRelativeToWater = RB.velocity - waterSurfaceVel;
var forcePosition = RB.position + _forceHeightOffset * Vector3.up;
RB.AddForceAtPosition(Vector3.up * Vector3.Dot(Vector3.up, -_velocityRelativeToWater) * _dragInWaterUp, forcePosition, ForceMode.Acceleration);
RB.AddForceAtPosition(transform.right * Vector3.Dot(transform.right, -_velocityRelativeToWater) * _dragInWaterRight, forcePosition, ForceMode.Acceleration);
RB.AddForceAtPosition(transform.forward * Vector3.Dot(transform.forward, -_velocityRelativeToWater) * _dragInWaterForward, forcePosition, ForceMode.Acceleration);
}
public bool ComputeUndisplacedPosition(ref Vector3 i_worldPos, SamplingData i_samplingData, out Vector3 undisplacedWorldPos)
{
return(_collProvider.ComputeUndisplacedPosition(ref i_worldPos, i_samplingData, out undisplacedWorldPos));
}
public bool ComputeUndisplacedPosition(ref Vector3 in__worldPos, out Vector3 undisplacedWorldPos)
{
return(_collProvider.ComputeUndisplacedPosition(ref in__worldPos, out undisplacedWorldPos));
}
public bool ComputeUndisplacedPosition(ref Vector3 i_worldPos, out Vector3 undisplacedWorldPos, float minSpatialLength)
{
return(_collProvider.ComputeUndisplacedPosition(ref i_worldPos, out undisplacedWorldPos, minSpatialLength));
}
public bool ComputeUndisplacedPosition(ref Vector3 worldPos, ref Vector3 undisplacedWorldPos)
{
return(_collProvider.ComputeUndisplacedPosition(ref worldPos, ref undisplacedWorldPos));
}