/// <summary>
/// Set the position and angle of the body manually.
/// </summary>
/// <param name="pos">global position</param>
/// <param name="angleInRadians">global angle</param>
public virtual void setPositionAngle(Vector2 pos, float angleInRadians, Vector2 scale)
{
mBaseShape.transformVertices(ref pos, angleInRadians, ref scale, ref mGlobalShape);
for (int i = 0; i < mPointMasses.Count; i++)
{
mPointMasses [i].Position = mGlobalShape [i];
}
DerivedPos = pos;
DerivedAngle = angleInRadians;
}
/// <summary>
/// set the shape of this body to a new ClosedShape object. This function
/// will remove any existing PointMass objects, and replace them with new ones IF
/// the new shape has a different vertex count than the previous one. In this case
/// the mass for each newly added point mass will be set zero. Otherwise the shape is just
/// updated, not affecting the existing PointMasses.
/// </summary>
/// <param name="shape">new closed shape</param>
public void setShape(ClosedShape shape)
{
mBaseShape = shape;
if (mBaseShape.Vertices.Count != mPointMasses.Count)
{
mPointMasses.Clear();
mGlobalShape = new Vector2[mBaseShape.Vertices.Count];
Vector2 p = DerivedPos;
mBaseShape.transformVertices(ref p, DerivedAngle, ref mScale, ref mGlobalShape);
DerivedPos = p;
for (int i = 0; i < mBaseShape.Vertices.Count; i++)
{
mPointMasses.Add(new PointMass(0.0f, mGlobalShape [i]));
}
}
}
/// <summary>
/// set the shape of this body to a new ClosedShape object. This function
/// will remove any existing PointMass objects, and replace them with new ones IF
/// the new shape has a different vertex count than the previous one. In this case
/// the mass for each newly added point mass will be set zero. Otherwise the shape is just
/// updated, not affecting the existing PointMasses.
/// </summary>
/// <param name="shape">new closed shape</param>
public void setShape(ClosedShape shape)
{
mBaseShape = shape;
if (mBaseShape.Vertices.Count != mPointMasses.Count)
{
mPointMasses.Clear();
mGlobalShape = new Vector2[mBaseShape.Vertices.Count];
Vector2 p = DerivedPos;
mBaseShape.transformVertices(ref p, DerivedAngle, ref mScale, ref mGlobalShape);
DerivedPos = p;
for (int i = 0; i < mBaseShape.Vertices.Count; i++)
mPointMasses.Add(new PointMass(0.0f, mGlobalShape [i]));
}
}