/// <summary>
/// Updates the model for this thread.
/// </summary>
public void UpdateModel()
{
if (Model == null && threadModelPrefab != null)
{
Model = Object.Instantiate(threadModelPrefab) as GameObject;
Debug.Log("Thread model made1");
if (Model == null)
{
return;
}
Model.transform.parent = threadModelsParentTransform;
}
if (Model == null)
{
return;
}
Vector3 sv0Position = _skinMesh.GetSkinVertex(vertex0Index).currentPosition;
Vector3 sv1Position = _skinMesh.GetSkinVertex(vertex1Index).currentPosition;
Model.transform.position = (sv0Position + sv1Position) / 2.0f;
Vector3 localScale = Model.transform.localScale;
localScale.y = (sv0Position - sv1Position).magnitude / 2.0f;
Model.transform.localScale = localScale;
Model.transform.up = Model.transform.position - sv0Position;
}
/// <summary>
/// Calculates the resulting force on this skin vertex based on
/// the gravity and the spring forces of all edges starting in this skin vertex.
/// This value will be cached and used in the associated 'ApplyAcceleration()' method.
/// </summary>
public void CalculateResultingForce()
{
_resultingForce = Mathf.Atan(currentPosition.y) * Physics.gravity * 0.05f * _skinMesh.gravityMultiplier + addedForces;
Vector3 skinEdgesResultingForce = Vector3.zero;
foreach (SkinEdge skinEdge in edges)
{
skinEdge.ShuffleVertexIndices(vertexIndex);
SkinVertex otherSkinVertex = _skinMesh.GetSkinVertex(skinEdge.vertex1Index);
skinEdgesResultingForce += skinEdge.cachedSpringForce * (otherSkinVertex.currentPosition - currentPosition).normalized;
}
if (threads.Count == 0)
{
_resultingForce += skinEdgesResultingForce;
}
else
{
Vector3 threadsResultingForce = Vector3.zero;
foreach (Thread thread in threads)
{
thread.ShuffleVertexIndices(vertexIndex);
SkinVertex otherSkinVertex = _skinMesh.GetSkinVertex(thread.vertex1Index);
threadsResultingForce += thread.cachedSpringForce * (otherSkinVertex.currentPosition - currentPosition).normalized;
}
_resultingForce += skinEdgesResultingForce + threadsResultingForce;
}
}
/// <summary>
/// Recalculates the area of this skin triangle and caches it.
/// </summary>
/// <returns>The area of this skin triangle.</returns>
public float UpdateCachedArea()
{
Vector3 v0 = _skinMesh.GetSkinVertex(vertex0Index).currentPosition;
Vector3 v1 = _skinMesh.GetSkinVertex(vertex1Index).currentPosition;
Vector3 v2 = _skinMesh.GetSkinVertex(vertex2Index).currentPosition;
Vector3 v2P = MathHelper.GetProjectedPointOnLine(v0, v1, v2);
cachedArea = (v0 - v1).magnitude * (v2 - v2P).magnitude * 0.5f;
return(cachedArea);
}