using UnityEngine;
using System.Collections;
using UnityEngine.AI;

public class MinimapMesh : MonoBehaviour
{
    [SerializeField] private GameEvent onMinimapGenerated;

    [SerializeField] private ZoneData zoneMap;

    MeshFilter filter;

    NavMeshTriangulation triangles;

    Mesh mesh;

    private void Awake()
    {
        filter = GetComponent<MeshFilter>();
    }

    private void Start()
    {
        if (zoneMap == null) return;
        if (onMinimapGenerated == null) return;

        if (!zoneMap.isProceduralMap)
            GenerateMinimap();
    }

    public void GenerateMinimap()
    {
        GenerateMesh();

        onMinimapGenerated.Raise();
    }

    public void UpdateMinimap()
    {
        StartCoroutine(DelayedUpdateMinimap());
    }

    IEnumerator DelayedUpdateMinimap()
    {
        yield return new WaitForSeconds(1f);

        GenerateMinimap();
    }

    private void GenerateMesh()
    {
        // Getnavmesh data
        triangles = NavMesh.CalculateTriangulation();

        // Create new mesh with data

        mesh = new Mesh
        {
            vertices = triangles.vertices,
            triangles = triangles.indices
        };


        // set to mesh filter      
        filter.mesh = mesh;
    }
}