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

public class GunView : MonoBehaviour
{
    Vector3 baseScale = new Vector3(0.7f, 0.7f, 0.7f);
    bool isPhone = false, isFirst = true;
    float zRot = 0, yRot = 0;
    Vector3 startPos;
    private void OnEnable()
    {
        transform.localScale = baseScale;
        if (SystemInfo.deviceType == DeviceType.Handheld)
            isPhone = true;
        isFirst = true;
    }
    void Update()
    {
        if(isPhone)
        {
            if (Input.touchCount > 0)
            {
                if (isFirst)
                {
                    isFirst = false;
                    startPos = Input.GetTouch(0).position;
                    return;
                }
                else
                {
                    zRot += (Input.GetTouch(0).position.y - startPos.y) * 0.09f;
                    zRot = Mathf.Clamp(zRot, -55, 55);
                    yRot += (Input.GetTouch(0).position.x - startPos.x) *0.25f;
                    //yRot = Mathf.Clamp(yRot, -75, 75);
                    startPos = Input.GetTouch(0).position;
                }
                ScaleUp();
            }
            else
            {
                isFirst = true;
                zRot = Mathf.Lerp(zRot, 0, 0.08f);
                yRot = Mathf.Lerp(yRot, 0, 0.08f);
                ScaleDown();
            }
            transform.eulerAngles = new Vector3(0, 90 + yRot, zRot);
        }
        else 
        {
            if (Input.GetMouseButton(0))
            {
                if(isFirst)
                {
                    isFirst = false;
                    startPos = Input.mousePosition;
                    return;
                }else
                {
                    zRot += (Input.mousePosition.y - startPos.y) * 0.1f;
                    zRot = Mathf.Clamp(zRot, -55, 55);
                    yRot += (Input.mousePosition.x - startPos.x) * 0.3f;
                    //yRot = Mathf.Clamp(yRot, -55, 55);
                    startPos = Input.mousePosition;
                }
                ScaleUp();
            }else
            {
                isFirst = true;
                zRot = Mathf.Lerp(zRot, 0, 0.2f);
                yRot = Mathf.Lerp(yRot, 0, 0.2f);
                ScaleDown();
            }
            transform.eulerAngles = new Vector3(0,90 + yRot,zRot);
        }
    }
    void ScaleUp()
    {
        transform.localScale = Vector3.Lerp(transform.localScale, Vector3.one, 0.075f);
    }
    void ScaleDown()
    {
        transform.localScale = Vector3.Lerp(transform.localScale, baseScale, 0.075f);
    }   
}