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

public class playerControl : MonoBehaviour
{
    private NavMeshAgent agent1;
    public GameObject img_Over;
    public GameObject img_Win;
    [Tooltip("讀取另外一個程式碼物件")]
    public enemy_greenp_manager enemy_manager_script;
    //[Tooltip("被door撞到的煙霧動畫prefab")]
    private GameObject somke_prefab_2;
    void Start()
    {
        //抓取代理組件
        agent1 = this.GetComponent<NavMeshAgent>();
    }

    bool iscollide = false;
    Vector3 prev_position = new Vector3(0,0,0);
    private void OnTriggerEnter(Collider other)
    {
        if(other.name == "Cube (1)" && iscollide==false)        
        {
            iscollide = true;
 
            //播放過關音效
            other.GetComponent<AudioSource>().Play();
            //顯示過關畫面            
            img_Win.SetActive(true);
        }
        //撞到第一個門，顯示gameover_screen
        else if(other.name == "door1" || other.name == "door2" || other.name == "door3")
        {            
            //跨程式碼檔案，傳遞數值，撞到door，扣分20
            enemy_manager_script.show_energy(-20);
            //顯示煙霧動畫，放在根目錄，但是只有出現2秒(粒子系統只設定2秒)，粒子會自動消失，不需要刪除
            somke_prefab_2 = Instantiate(enemy_manager_script.somke_prefab, null);
            somke_prefab_2.transform.position = this.transform.position;
            //如果體力<0，則過關失敗
            if(enemy_manager_script.energy <0)
            {
                //播放過關失敗音效
                other.GetComponent<AudioSource>().Play();
                img_Over.SetActive(true);
            }

        }

    }
    void Update()
    {
        //手觸控某個位置，agent1就會朝點的位置走過去
        //判別按下滑鼠左鍵
        bool isjump = false;
        if (Input.GetMouseButtonDown(0))
        {
            //射線取得點按位置的坐標
            Ray ray1 = Camera.main.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit1;
            //射線檢測
            if(Physics.Raycast(ray1,out hit1)==true)
            {
                //取得點擊位置
                Vector3 point1 = hit1.point;
                //設定point1為導航目標點
                agent1.SetDestination(point1);
                //如果jump to （link2）則jump
                if(hit1.collider.gameObject.name=="link2" || hit1.collider.gameObject.name == "door3" || hit1.collider.gameObject.name == "Cube (3)" || hit1.collider.gameObject.name == "Cube (4)" || hit1.collider.gameObject.name == "Cube (5)" || hit1.collider.gameObject.name == "Cube" || hit1.collider.gameObject.name == "Cube (1)")
                {
                    //設定主角jump動畫（但是沒有效果），可能是update馬上被改成status=1
                    GameObject.Find("unitychan").GetComponent<Animator>().SetInteger("status", 2);
                    //所以用一個isjump變數
                    isjump = true;
                }
                else
                {
                    GameObject.Find("unitychan").GetComponent<Animator>().SetInteger("status", 1);
                }
            }
        }
        //注意：要先判斷Jump的case，否則永遠不會執行jump
        //jump
        if (isjump == true)
        {
            GameObject.Find("unitychan").GetComponent<Animator>().SetInteger("status", 2);

        }
        //如果原地不動，則status =0
        else if (GameObject.Find("unitychan").transform.position == prev_position)
        {
            GameObject.Find("unitychan").GetComponent<Animator>().SetInteger("status", 0);
        }
        else//否則walk
        {
            GameObject.Find("unitychan").GetComponent<Animator>().SetInteger("status", 1);
        }
        
        //設定prev_position
        prev_position = GameObject.Find("unitychan").transform.position;

    }
}