using HighwayRacers;
using System.Collections.Generic;
using Unity.Entities;
using UnityEngine;

public class CarSpawnerAuthoring : MonoBehaviour, IConvertGameObjectToEntity, IDeclareReferencedPrefabs
{
    public int carCount;
    public GameObject americanPrefab;
    public GameObject europeanPrefab;
    public GameObject tilePrefab;
    [Tooltip("European cars are blue. American cars are green")]
    public DriverProfile DriverProfile = DriverProfile.Random;

    private void Start()
    {
    }


    //---------------------------------------------------------------------------------------
    // This function is required by IDeclareReferencedPrefabs
    public void DeclareReferencedPrefabs(List<GameObject> referencedPrefabs)
    {
        // Conversion only converts the GameObjects in the scene.
        // This function allows us to inject extra GameObjects,
        // in this case prefabs that live in the assets folder.
        referencedPrefabs.Add(americanPrefab);
        referencedPrefabs.Add(europeanPrefab);
        referencedPrefabs.Add(tilePrefab);
    }
    //---------------------------------------------------------------------------------------
    // This function is required by IConvertGameObjectToEntity
    public void Convert(Entity entity, EntityManager dstManager
        , GameObjectConversionSystem conversionSystem)
    {

        //retrieve streets.
        var streets = FindObjectOfType<StreetDataAuthoring>();

        // GetPrimaryEntity fetches the entity that resulted from the conversion of
        // the given GameObject, but of course this GameObject needs to be part of
        // the conversion, that's why DeclareReferencedPrefabs is important here.
        dstManager.AddComponentData(entity, new CarSpawnerComponent
		{
//            StreetsCount = streets.StreetInfo.Features.Length,
            CarCount = carCount,
			AmericanCarPrefab = conversionSystem.GetPrimaryEntity(americanPrefab),
            EuropeanCarPrefab = conversionSystem.GetPrimaryEntity(europeanPrefab),
            TilePrefab = conversionSystem.GetPrimaryEntity(tilePrefab),
			DriverProfile = DriverProfile,
            StreetsCount = streets.StreetInfo.Features.Length
		});        
    }
}