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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);
}
}
}
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