protected void applyHookesLaw()
{
foreach (Edge e in graph.edges)
{
Spring spring = GetSpring(e);
AbstractVector d = spring.point2.position - spring.point1.position;
float displacement = spring.Length - d.Magnitude();
AbstractVector direction = d.Normalize();
if (spring.point1.node.Pinned && spring.point2.node.Pinned)
{
spring.point1.ApplyForce(direction * 0.0f);
spring.point2.ApplyForce(direction * 0.0f);
}
else if (spring.point1.node.Pinned)
{
spring.point1.ApplyForce(direction * 0.0f);
spring.point2.ApplyForce(direction * (spring.K * displacement));
}
else if (spring.point2.node.Pinned)
{
spring.point1.ApplyForce(direction * (spring.K * displacement * -1.0f));
spring.point2.ApplyForce(direction * 0.0f);
}
else
{
spring.point1.ApplyForce(direction * (spring.K * displacement * -0.5f));
spring.point2.ApplyForce(direction * (spring.K * displacement * 0.5f));
}
}
}
