// Update is called once per frame
private void Update()
{
float stepLength = 1.0f / Segments;
float step;
_animCounter += Time.deltaTime;
// Animate the tangents to move around in cycles
TangentOne.Translate(Mathf.Cos(_animCounter) * 0.1f, Mathf.Sin(_animCounter) * 0.05f, -Mathf.Sin(_animCounter) * 0.1f, Space.Self);
TangentTwo.Translate(Mathf.Sin(_animCounter) * 0.1f, Mathf.Cos(_animCounter) * 0.03f, Mathf.Cos(_animCounter) * 0.1f, Space.Self);
// Build the line segments of the curve
for (var i = 0; i < Segments; i++)
{
step = i * stepLength;
// Use the Hermite class to get the start and end points of the current segment
var prevPosition = Hermite.GetVector3AtStep(StartPosition.position, EndPosition.position,
(TangentOne.position - StartPosition.position) * TangentOneWeight,
-(TangentTwo.position - EndPosition.position) * TangentTwoWeight,
step);
var nextPosition = Hermite.GetVector3AtStep(StartPosition.position, EndPosition.position,
(TangentOne.position - StartPosition.position) * TangentTwoWeight,
-(TangentTwo.position - EndPosition.position) * TangentTwoWeight,
step + stepLength);
// Move the segment to the starting point
_lines[i].transform.position = prevPosition;
// Rotate towards the endpoint
_lines[i].transform.LookAt(nextPosition, Vector3.up);
// Scale the cube to match length
_lines[i].transform.localScale = new Vector3(0.2f, 0.2f, (prevPosition - nextPosition).magnitude);
}
// Debug Draw methods only show up when Editor is playing and paused
Hermite.DrawVector3(StartPosition.position, EndPosition.position, TangentOne.position,
-TangentTwo.position, Segments);
Debug.DrawLine(StartPosition.position, TangentOne.position, Color.cyan);
Debug.DrawLine(EndPosition.position, TangentTwo.position, Color.magenta);
}