1 files changed, 106 insertions, 0 deletions
diff --git a/ch.sycoforge.Decal.Demo/PathAgent.cs b/ch.sycoforge.Decal.Demo/PathAgent.cs
new file mode 100644
index 0000000..27908d7
--- /dev/null
+++ b/ch.sycoforge.Decal.Demo/PathAgent.cs
@@ -0,0 +1,106 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.AI;
+
+namespace ch.sycoforge.Decal.Demo;
+
+[RequireComponent(typeof(NavMeshAgent))]
+[RequireComponent(typeof(LineRenderer))]
+public class PathAgent : MonoBehaviour
+{
+	public float PathThickness = 1f;
+
+	[Tooltip("Distance from the ground.")]
+	public float NormalPathOffset;
+
+	[Tooltip("Max radius between segments.")]
+	[Range(0.001f, 0.5f)]
+	public float Radius = 0.25f;
+
+	[Tooltip("Discard segments when their angle is smaller than this value.")]
+	public float AngleThreshold = 5f;
+
+	public bool DrawGizmos;
+
+	public EasyDecal TargetAimDecal;
+
+	public GameObject TargetPointDecalPrefab;
+
+	private List<Vector3> path = new List<Vector3>();
+
+	private NavMeshAgent agent;
+
+	private LineRenderer lineRenderer;
+
+	private Vector3 decalOffset = Vector3.up * 0.5f;
+
+	private const int MAXDISTANCE = 50;
+
+	private void Start()
+	{
+		TargetAimDecal.gameObject.SetActive(value: false);
+		agent = GetComponent<NavMeshAgent>();
+		lineRenderer = GetComponent<LineRenderer>();
+	}
+
+	private void Update()
+	{
+		Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
+		CreatePath(ray);
+		SetTarget(ray);
+	}
+
+	private void SetTarget(Ray mouseRay)
+	{
+		if (Input.GetMouseButtonUp(0) && Physics.Raycast(mouseRay, out var hitInfo, 50f))
+		{
+			agent.SetDestination(hitInfo.point);
+			EasyDecal.ProjectAt(TargetPointDecalPrefab, hitInfo.collider.gameObject, hitInfo.point + decalOffset, Quaternion.identity);
+		}
+	}
+
+	private void CreatePath(Ray mouseRay)
+	{
+		if (Physics.Raycast(mouseRay, out var hitInfo, 50f))
+		{
+			Vector3 position = base.transform.position;
+			Vector3 point = hitInfo.point;
+			path.Clear();
+			NavMeshPath navMeshPath = new NavMeshPath();
+			if (NavMesh.CalculatePath(position, point, -1, navMeshPath) && navMeshPath.status == NavMeshPathStatus.PathComplete)
+			{
+				int num = navMeshPath.corners.Length;
+				Vector3 vector = base.transform.up;
+				for (int i = 0; i < num; i++)
+				{
+					if (i > 0 && NormalPathOffset > 0f && Physics.Raycast(navMeshPath.corners[i], Vector3.down, out var _, NormalPathOffset * 10f))
+					{
+						vector = hitInfo.normal;
+					}
+					Vector3 item = navMeshPath.corners[i] + vector * NormalPathOffset;
+					path.Add(item);
+				}
+				Vector3[] array = BezierUtil.InterpolatePath(path, 10, Radius, AngleThreshold).ToArray();
+				lineRenderer.SetVertexCount(array.Length);
+				lineRenderer.SetPositions(array);
+				TargetAimDecal.gameObject.SetActive(value: true);
+				TargetAimDecal.gameObject.transform.position = navMeshPath.corners[num - 1] + decalOffset;
+				return;
+			}
+		}
+		TargetAimDecal.gameObject.SetActive(value: false);
+	}
+
+	private void OnDrawGizmos()
+	{
+		if (!DrawGizmos)
+		{
+			return;
+		}
+		Gizmos.color = Color.red;
+		foreach (Vector3 item in path)
+		{
+			Gizmos.DrawSphere(item, 0.05f);
+		}
+	}
+}