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

public class VariableJoystick : Joystick
{
	public float moveThreshold { get { return _moveThreshold; } set { _moveThreshold = Mathf.Abs(value); } }

	[SerializeField] private float _moveThreshold = 1;
	[SerializeField] private JoystickType _joystickType = JoystickType.Fixed;

	private Vector2 _fixedPosition = Vector2.zero;

	public void SetMode(JoystickType joystickType)
	{
		this._joystickType = joystickType;
		if (joystickType == JoystickType.Fixed)
		{
			background.anchoredPosition = _fixedPosition;
			background.gameObject.SetActive(true);
		}
		//else
		//    background.gameObject.SetActive(false);
	}

	protected override void Start()
	{
		base.Start();
		_fixedPosition = background.anchoredPosition;
		SetMode(_joystickType);
	}

	public override void OnPointerDown(PointerEventData eventData)
	{
		if (_joystickType != JoystickType.Fixed)
		{
			//background.anchoredPosition = ScreenPointToAnchoredPosition(eventData.position);
			//background.gameObject.SetActive(true);
		}
		base.OnPointerDown(eventData);
	}

	public override void OnBeginDrag(PointerEventData eventData)
	{
		base.OnBeginDrag(eventData);
		if (_dragPointerId == eventData.pointerId)
		{
			if (_joystickType != JoystickType.Fixed)
			{
				background.anchoredPosition = ScreenPointToAnchoredPosition(eventData.position);
				//background.gameObject.SetActive(true);
			}
		}
	}

	public override void OnEndDrag(PointerEventData eventData)
	{
		if (_dragPointerId == eventData.pointerId)
		{
			if (_joystickType != JoystickType.Fixed)
			{
				background.anchoredPosition = _fixedPosition;
				//background.gameObject.SetActive(false);
			}
		}
		base.OnEndDrag(eventData);
	}

	public override void OnPointerUp(PointerEventData eventData)
	{
		if (_joystickType != JoystickType.Fixed)
		{
			//background.anchoredPosition = _fixedPosition;
			//background.gameObject.SetActive(false);
		}

		base.OnPointerUp(eventData);
	}

	protected override void HandleInput(float magnitude, Vector2 normalised, Vector2 radius, Camera cam)
	{
		if (_joystickType == JoystickType.Dynamic && magnitude > _moveThreshold)
		{
			//Vector2 difference = normalised * (magnitude - _moveThreshold) * radius;
			//background.anchoredPosition += difference;
		}
		base.HandleInput(magnitude, normalised, radius, cam);
	}
}

public enum JoystickType { Fixed, Floating, Dynamic }