public Vector3 CalcTorqueToMagnet(int bmIdx)
{
BarMagnet bmo = barMagnetList[bmIdx];
Vector3 mo = bmo.GetMagneticMoment();
return(CalcTorque(mo, bmo.transform.position, bmo));
}
public Vector3 CalcAFieldForVisual(Vector3 position, BarMagnet bm)
{
Vector3 dir = position - bm.transform.position;
Vector3 mi = bm.GetMagneticMoment();
Vector3 field = Vector3.Cross(mi, dir.normalized) * Mathf.Pow(dir.magnitude, -3);
return(k * field);
}
public Vector3 CalcForceToMagnet(int bmIdx)
{
BarMagnet bmo = barMagnetList[bmIdx];
Vector3 mo = bmo.GetMagneticMoment();
if (bmo.IsCollide())
{
return(new Vector3(0.0f, 0.0f, 0.0f));
}
return(CalcForce(mo, bmo.transform.position, bmo, null));
}
public Vector3 CalcMFieldForVisualCompass(Vector3 position, BarMagnet bm)
{
Vector3 nDir = position - bm.GetNorthEdgePosition();
Vector3 sDir = position - bm.GetSouthEdgePosition();
Vector3 dir = position - bm.transform.position;
float edgefactor = 0.15f;
float centorfactor = 0.7f;
if (dir.sqrMagnitude < 0.1f * bm.GetSize())
{
edgefactor = 0.0f;
centorfactor = 1.0f;
}
Vector3 mi = bm.GetMagneticMoment() * edgefactor;
Vector3 mic = bm.GetMagneticMoment() * centorfactor;
float minDir = Vector3.Dot(mi, nDir.normalized);
float misDir = Vector3.Dot(mi, sDir.normalized);
float miDir = Vector3.Dot(mi, dir.normalized);
Vector3 nField = 3 * minDir * nDir.normalized - mi;
nField *= Mathf.Pow(nDir.magnitude, -3);
Vector3 sField = 3 * misDir * sDir.normalized - mi;
sField *= Mathf.Pow(sDir.magnitude, -3);
Vector3 cField = 3 * miDir * dir.normalized - mic;
cField *= Mathf.Pow(dir.magnitude, -3);
Vector3 field = nField + sField + cField;
return(k * field);
}
public Vector3 CalcMFieldForVisual(Vector3 position, BarMagnet bm)
{
Vector3 dir = position - bm.transform.position;
Vector3 mi = bm.GetMagneticMoment();
float midir = Vector3.Dot(mi, dir.normalized);
Vector3 field = 3 * midir * dir.normalized - mi;
field *= Mathf.Pow(dir.magnitude, -3);
field *= 1000.0f;
return(field);
//return k * field
//return Vector3.zero;
}
public Vector3 CalcMField(Vector3 position, BarMagnet bm)
{
Vector3 dir = position - bm.GetClosestEdgePosition(position);
if (dir.sqrMagnitude < 100.0f)
{
dir = position - bm.transform.position;
}
Vector3 mi = bm.GetMagneticMoment();
float midir = Vector3.Dot(mi, dir.normalized);
Vector3 field = 3 * midir * dir.normalized - mi;
field *= Mathf.Pow(dir.magnitude, -3);
return(k * field);
}