using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using HTC.UnityPlugin.Vive;

//治疗针的使用
//针在平常状态下会缓慢恢复数值，针在治疗状态下按住扳机使玩家缓慢恢复生命值
//如果不使用，20秒之后针的恢复量会补充完毕
//使用状态（按下状态）最多持续1秒，恢复30点生命值

public class CureNeedle : MonoBehaviour {
    //是否在治疗状态
    private bool isCure_;
    //是否碰到左手
    private bool isTouchLeftHand_;
    //获取玩家类脚本
    private Player playerScript;
    private PlayerControl playerControlScript;

    //数值显示
    public Image remainHpImg;
    public GameObject Light;
    private bool isRayCast;

    private RaycastHit NeedleRay;
	// Use this for initialization
	void Start () {
        isTouchLeftHand_ = false;
        isCure_ = false;
        playerScript = GameObject.FindGameObjectWithTag("Player").GetComponent<Player>();
        playerControlScript = GameObject.FindGameObjectWithTag("Player").GetComponent<PlayerControl>();
    }

    // Update is called once per frame
    void Update() {
        if (isTouchLeftHand_) {
            if (ViveInput.GetPressDown(HandRole.RightHand, ControllerButton.Trigger))
            {
                isCure_ = true;
            }
        }
        if (ViveInput.GetPressUp(HandRole.RightHand, ControllerButton.Trigger)) {
            isCure_ = false;
            Light.SetActive(false);
        }
        if (isCure_ && playerControlScript.needleHpRemain > 0 && playerScript.hp < 100) {
            playerControlScript.needleHpRemain = playerControlScript.needleHpRemain - 1;
            playerScript.hp += 1;
        }
        remainHpImg.fillAmount = playerControlScript.needleHpRemain / 30f;

        Debug.DrawRay(gameObject.transform.position - gameObject.transform.up * -0.025f -gameObject.transform.forward * 0.125f, gameObject.transform.forward * 0.2f, Color.red);
        isRayCast = Physics.Raycast(gameObject.transform.position - gameObject.transform.up * -0.025f - gameObject.transform.forward * 0.125f, gameObject.transform.forward, out NeedleRay, 0.2f);
        if (isRayCast)
        {
            if (NeedleRay.transform.tag == "leftHandCollider" && !isTouchLeftHand_)
            {
                isTouchLeftHand_ = true;
                Light.SetActive(true);
            }
        }
        else if(isTouchLeftHand_) {
            isTouchLeftHand_ = false;
            Light.SetActive(false);
        }

    }


    private void OnTriggerEnter(Collider other)
    {
        print(other.name);
        if (other.name == "SphereCollider")
        {
            isTouchLeftHand_ = true;
            Light.SetActive(true);
        }
    }

    
}