void UpdateLine()
{
float t;
if (duration == 0)
{
t = 1.0f;
}
else
{
t = (Time.time - startTime) / duration;
}
if (t >= 1.0f)
{
t = 1.0f;
if (autoFadeAfter == 0)
{
Destroy(this); // will destroy this behaviour at the end of the frame
}
else
{
startAutoFadeTime = Time.time;
}
}
// pass current vertices
float vertexIndex = 1 + (vertices.Length - 2) * t;
int currentVertex = (int)(vertexIndex);
lr.SetVertexCount(currentVertex + 1);
for (int k = 0; k < currentVertex; k++)
{
lr.SetPosition(k, vertices [k]);
}
// adjust last segment
Vector3 nextVertex = vertices [currentVertex];
float subt = vertexIndex - currentVertex;
Vector3 progress = Vector3.Lerp(vertices [currentVertex], nextVertex, subt);
lr.SetPosition(currentVertex, progress);
}
// Use this for initialization
void Start()
{
// Create the line mesh
if (numPoints < 2)
{
numPoints = 2;
}
vertices = new Vector3[numPoints];
startTime = Time.time;
lr = transform.GetComponent <LineRenderer2> ();
if (lr == null)
{
lr = gameObject.AddComponent <LineRenderer2> ();
}
lr.SetVertexBufferSize(vertices.Length);
lr.SetVertexCount(vertices.Length);
lr.useWorldSpace = false;
lr.SetWidth(lineWidth, lineWidth);
if (!reuseMaterial)
{
lineMaterial = Instantiate(lineMaterial);
}
lineMaterial.color = color;
lr.material = lineMaterial; // needs to instantiate to preserve individual color so can't use sharedMaterial
lr.SetColors(color, color);
vertices = new Vector3[numPoints];
for (int s = 0; s < numPoints; s++)
{
float t = (float)s / (numPoints - 1);
float elevation = Mathf.Sin(t * Mathf.PI) * arcElevation;
Vector3 sPos;
if (earthInvertedMode)
{
sPos = Vector3.Lerp(start, end, t).normalized * 0.5f * (1.0f - elevation);
}
else
{
sPos = Vector3.Lerp(start, end, t).normalized * 0.5f * (1.0f + elevation);
}
vertices [s] = sPos;
lr.SetPosition(s, sPos);
}
startAutoFadeTime = float.MaxValue;
colorTransparent = new Color(color.r, color.g, color.b, 0);
if (duration == 0)
{
lr.Update();
UpdateLine();
}
}