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

public class resetCameraRotation_Custom : MonoBehaviour {

    /// <summary>
    /// Time of animation (sec).
    /// </summary>
    public float animationTime = 3;

    /// <summary>
    /// Animation Curve.
    /// </summary>
    public AnimationCurve animationCurve = AnimationCurve.EaseInOut(0, 0, 1, 1);

    private float time;
    private bool isReset;
    private float camX;
    private float camY;
    private OnlineMapsTileSetControl control;

    private void OnGUI()
    {
        if (GUI.Button(new Rect(5, 5, 200, 100), "Reset") && !isReset)
        {
            resetCameraRotation();
        }
    }

    private void Start()
    {
        control = OnlineMapsTileSetControl.instance;
    }

    public void resetCameraRotation()
    {
        if (!isReset)
        {
            // Store the current rotation, and marks that reset is started.
            camX = control.cameraRotation.x;
            camY = control.cameraRotation.y;
            isReset = true;
        }
    }

    private void Update()
    {
        if (!isReset) return;

        // Updating the progress of the animation.
        time += Time.deltaTime;
        float t = time / animationTime;

        // If the animation is finished
        if (t >= 1)
        {
            // Reset values
            time = 0;
            isReset = false;
            t = 1;
        }

        // Update the rotation of camera.
        float f = animationCurve.Evaluate(t);
        control.cameraRotation.x = Mathf.Lerp(camX, 0, f);
        control.cameraRotation.y = Mathf.Lerp(camY, 0, f);
    }
}