/// <summary>
/// Create a verlet link.
/// </summary>
/// <param name="a">First verlet point</param>
/// <param name="b">First verlet point</param>
/// <param name="restingDistance">Resting distance</param>
/// <param name="minimalDistance">Minimal link distance. Use `-1` to disable.</param>
/// <param name="maximalDistance">Maximal link distance. Use `-1` to disable.</param>
/// <param name="tearSensitivity">Distance required to break the link. Use `-1` to create an unbreakable link.</param>
/// <param name="tearSensitivityFactor">Distance factor required to break the link. Use `-1` to create an unbreakable link.</param>
/// <param name="stiffness">Stiffness of the link</param>
/// <param name="width">Width of the link</param>
/// <param name="color">Link color</param>
/// <param name="visible">Show link</param>
/// <returns>Verlet link</returns>
public VerletLink CreateLink(
VerletPoint a,
VerletPoint b,
float?restingDistance = null,
float?minimalDistance = null,
float?maximalDistance = null,
float?tearSensitivity = null,
float?tearSensitivityFactor = null,
float?stiffness = null,
float?width = null,
Color?color = null,
bool?visible = null)
{
var link = new VerletLink(this, a, b);
a.AddLink(link);
AddChild(link);
link.Visible = visible ?? link.Visible;
link.RestingDistance = restingDistance ?? link.RestingDistance;
link.MinimalDistance = minimalDistance ?? link.MinimalDistance;
link.MaximalDistance = maximalDistance ?? link.MaximalDistance;
link.TearSensitivity = tearSensitivity ?? link.TearSensitivity;
link.Stiffness = stiffness ?? link.Stiffness;
link.Modulate = color ?? link.Modulate;
link.Width = width ?? link.Width;
if (tearSensitivityFactor.HasValue)
{
link.TearSensitivity = link.RestingDistance * tearSensitivityFactor.Value;
}
return(link);
}
/// <summary>
/// Mark a link to be removed next frame.
/// </summary>
/// <param name="link">Verlet link</param>
public void QueueLinkRemoval(VerletLink link)
{
if (!linksToRemove.Contains(link))
{
linksToRemove.Add(link);
}
}
private void RemoveLink(VerletLink link)
{
foreach (VerletPoint p in points)
{
p.RemoveLink(link);
}
RemoveChild(link);
}
