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

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

	[SerializeField] private float _moveThreshold = 1;

	protected override void Start()
	{
		moveThreshold = _moveThreshold;
		base.Start();
		background.gameObject.SetActive(false);
	}

	public override void OnPointerDown(PointerEventData eventData)
	{
		background.anchoredPosition = ScreenPointToAnchoredPosition(eventData.position);
		background.gameObject.SetActive(true);
		base.OnPointerDown(eventData);
	}

	public override void OnPointerUp(PointerEventData eventData)
	{
		background.gameObject.SetActive(false);
		base.OnPointerUp(eventData);
	}

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