// 增加紀錄左鍵的次數＆顯示
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class CarController : MonoBehaviour
{
    GameObject Lefttxt;
    GameObject distance;
    float speed = 0;
    public static int left_key = 0;
    float right_key = 0;
    Vector2 startPos;

    // Start is called before the first frame update
    void Start()
    {
        Lefttxt= GameObject.Find("Lefttxt");
        //this.distance = GameObject.Find("Distance");
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetMouseButtonDown(1)) {   // 滑鼠右鍵
            this.speed = 0.2f;
            this.right_key +=1.0f;
        }

        if(Input.GetMouseButtonDown(0)) {   // 滑鼠左鍵
            this.speed = -0.2f;
            left_key = left_key + 1;
            Lefttxt.GetComponent<Text>().text  = "Left = "+left_key.ToString("D5")+"次";

        }

        //取得滑動長度
        if(Input.GetMouseButtonDown(0)) {
        //點擊滑鼠的座標
        this.startPos = Input.mousePosition;
        } else if(Input.GetMouseButtonUp(0)) {
        //放開滑鼠的座標
        Vector2 endPos = Input.mousePosition;
        float swipeLength = endPos.x - this.startPos.x;

        //把滑動長度轉換成初始移動速度
        this.speed = swipeLength / 500f;

        //播放音效
        GetComponent<AudioSource>().Play();
        }


        transform.Translate(this.speed,0,0);
        this.speed *= 0.98f;
    }
}