using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;
using System.Collections;

namespace Scanner
{
	public class Demo1 : MonoBehaviour
	{
		[Header("Mouse Click")]
		public Camera m_Camera;
		public Scanner.ScannerCameraEffect m_Scanner;
		public float m_ScanVelocity = 50f;
		[Range(1f, 20f)] public float m_ScanWidth = 10f;
		public Color m_Leading;
		public Color m_Middle;
		public Color m_Trail;
		public Color m_HorizontalBar;
		float m_ScanDistance;
		bool m_Scanning;

		[Header("Object Halo")]
		public Renderer m_RdTerrain;
		public Transform m_TransObject;

		void Start()
		{
			GraphicsSettings.renderPipelineAsset = null;  // disable urp in this demo.
		}
		void Update()
		{
			if (m_Scanning)
				m_ScanDistance += Time.deltaTime * m_ScanVelocity;
			if (Input.GetMouseButtonDown(1))
			{
				Ray ray = m_Camera.ScreenPointToRay(Input.mousePosition);
				RaycastHit hit;
				if (Physics.Raycast(ray, out hit))
				{
					m_Scanning = true;
					m_ScanDistance = 0f;
					m_Scanner.m_Origin = hit.point;
				}
			}
			m_Scanner.SetScanDistance(m_ScanDistance);
			m_Scanner.m_Material.SetFloat("_ScanWidth", m_ScanWidth);
			m_Scanner.m_Material.SetColor("_LeadColor", m_Leading);
			m_Scanner.m_Material.SetColor("_MidColor", m_Middle);
			m_Scanner.m_Material.SetColor("_TrailColor", m_Trail);
			m_Scanner.m_Material.SetColor("_HBarColor", m_HorizontalBar);

			m_RdTerrain.material.SetVector("_Center", m_TransObject.position);
		}
	}
}