using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RayController : MonoBehaviour
{
    public Transform anchor;
    private float maxDistance = 100;
    private LineRenderer line;

    private bool isRotatiing = false;
    public AudioClip sound;

    public GameObject carBody;
    public Material[] colors;
    private int num = 0;

    void Start()
    {
        line = GetComponen<LineRenderer>();
    }

    void Update()
    {
        RaycastHit hit;
        Ray ray = new Ray(anchor.position, anchor.forward);

        line.SetPosition(0, ray.origin);

        if(Physics.Raycast(ray, out hit, maxDistance))
        {
            line.SetPosition(1, hit.point);

            GameObject target = hit.collider.gameObject;

            if(OVRInput.GetDown(OVRInput.RawButton.A))
            {
                if(target.CompareTag("Car"))
                {
                    if(!isRotatiing)
                    {
                        AudioSource.PlayClipAtPoint(sound, transform.position);
                        target.GetComponent<Rotate>().enabled = true;
                        isRotatiing = true;
                    }
                    else
                    {
                        AudioSource.PlayClipAtPoint(sound, transform.position);
                        target.GetComponent<Rotate>().enabled = false;
                        isRotatiing = false;
                    }
                }
            }

            if(OVRInput.GetDown(OVRInput.RawButton.B))
            {
                if(target.CompareTag("CarBody"))
                {
                    AudioSource.PlayClipAtPoint(sound, Camera.main.transform.position);

                    Renderer renderer = target.GetComponent<MeshRenderer>();

                    Material[] mats = renderer.materials;

                    num = (num + 1) % colors.Length;

                    mats[2] = colors[num];

                    renderer.materials = mats;
                }
            }

            // ★追加（Boxを持ち上げる）
            if(OVRInput.Get(OVRInput.RawButton.RIndexTrigger))
            {
                if(target.CompareTag("Box"))
                {
                    // 右手（anchor）が「親」　Boxが「子供」
                    target.transform.parent = anchor;

                    // BoxのRigidbodyのIs Kinematicを一時的にONにする（ポイント）
                    target.GetComponent<Rigidbody>().isKinematic = true;
                }
            }
            else
            {
                // 親子関係の解除
                target.transform.parent = null;

                // BoxのRigidbodyのIs KinematicをOFFに戻す。
                target.GetComponent<Rigidbody>().isKinematic = false;
            }
        }
        else
        {
            line.SetPosition(1, ray.origin + (ray.direction * maxDistance));
        }
    }
}