using System;
using UnityEngine;
using UnityEngine.Scripting.APIUpdating;

public class CameraController : MonoBehaviour
{
    public float moveSpeed;
    public float zoomSpeed;
    public float minZoomDist;
    public float maxZoomDist;
    private Camera cam;
    void Awake()
    {
        cam = Camera.main;
    }
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        Move();
        Zoom();   
    }

    private void Move()
    {
        float xInput = Input.GetAxisRaw("Horizontal");
        float zInput = Input.GetAxisRaw("Vertical");
        Vector3 dir = transform.forward * zInput + transform.right * xInput;
        transform.position += dir * moveSpeed * Time.deltaTime;
    }
    private void Zoom()
    {
        float scrollInput = Input.GetAxisRaw("Mouse ScrollWheel");
        float dist = Vector3.Distance(transform.position, cam.transform.position);
        if(dist < minZoomDist && scrollInput > 0.0f)
        return;
        if(dist > maxZoomDist && scrollInput < 0.0f)
        return;
        cam.transform.position += cam.transform.forward * scrollInput * zoomSpeed;
    }
    public void FocusOnPosition(Vector3 pos)
    {
        transform.position = pos;
    }
}