Circle Line Renderer

CircleLineRenderer.cs

[System.Serializable]
public class CirclelLineRenderer
{
	[SerializeField]
	private LineRenderer lineRenderer;
	public LineRenderer LINE_RENDERER
	{
		get { return lineRenderer; }

		set
		{
			lineRenderer = value;
			Refresh();
		}
	}

	public bool HAS_RENDERER { get { return lineRenderer != null; } }

	[SerializeField]
	private float radius = 1f;
	public float RADIUS
	{
		get { return radius; }

		set
		{
			radius = value;
			Refresh();
		}
	}

	[SerializeField]
	private bool overStep = false;

	[SerializeField]
	[Range(0f, 360f)]
	private float startPosition = 0f;
	public float START_POSITION
	{
		get { return startPosition; }

		set
		{
			startPosition = Mathf.Clamp(value, 0f, 360f);
		}
	}

	[SerializeField]
	private float lineWidthStart = 0.25f;
	public float LINE_WIDTH_START
	{
		get { return lineWidthStart; }

		set
		{
			lineWidthStart = value;
			if(overStep) lineWidthEnd = value;
		}
	}

	[SerializeField]
	private float lineWidthEnd = 0.25f;
	public float LINE_WIDTH_END
	{
		get { return lineWidthEnd; }

		set
		{
			lineWidthEnd = value;
			if(overStep) lineWidthStart = value;
		}
	}

	public float GLOBAL_WIDTH
	{
		set
		{
			LINE_WIDTH_END = LINE_WIDTH_START = value;
		}
	}

	private const int stepMin = 1;
	private const int stepMax = 32;

	[Range(stepMin, stepMax)]
	[SerializeField]
	private int step = stepMin;
	public int STEP
	{
		get { return step; }

		set
		{
			step = Mathf.Clamp(value, stepMin, stepMax);
		}
	}

	private int stepTot = 10;

	private Vector3 vertPos = Vector3.zero;


	public void Refresh()
	{
		if(lineRenderer == null) return;

		// compute total step
		stepTot = (step * 4) + 1;

		// inverse step 1/totstep
		float iStep = 1f;
		iStep /= (float)(stepTot - 1);

		if(overStep)
		{
			// line width
			lineWidthEnd = lineWidthStart;

			// tot step
			stepTot++;
		}

		lineRenderer.SetVertexCount(stepTot);

		lineRenderer.SetWidth(lineWidthStart, lineWidthEnd);

		for(int i = 0; i < stepTot; i++)
		{
			vertPos.x = Mathf.Cos((startPosition + 360f * i * iStep) * Mathf.Deg2Rad) * radius;
			vertPos.y = Mathf.Sin((startPosition + 360f * i * iStep) * Mathf.Deg2Rad) * radius;

			lineRenderer.SetPosition(i, vertPos);

		}// for()

	}// Refresh()

}// CirclelLineRenderer