using UnityEngine;
using UnityEngine.UI;

public class UI_Cursor : MonoBehaviour
{
	public Vector2 xClamp;

	public Vector2 yClamp;

	public float speed;

	public Camera camera;

	private Button selectedButton;

	private void Update()
	{
		CursorClickUpdate();
	}

	private void FixedUpdate()
	{
		CursorMovementUpdate();
	}

	private void CursorClickUpdate()
	{
		if (Input.GetMouseButtonDown(0) && (bool)selectedButton)
		{
			selectedButton.onClick.Invoke();
		}
	}

	private void CursorMovementUpdate()
	{
		float x = Input.GetAxis("Mouse X") * speed;
		float y = Input.GetAxis("Mouse Y") * speed;
		Vector3 position = (base.transform.position += new Vector3(x, y, 0f));
		position.x = Mathf.Clamp(position.x, xClamp.x, xClamp.y);
		position.y = Mathf.Clamp(position.y, yClamp.x, yClamp.y);
		base.transform.position = position;
	}

	private void OnTriggerEnter2D(Collider2D collision)
	{
		if (collision.gameObject.layer == LayerMask.NameToLayer("UI"))
		{
			if (selectedButton != null)
			{
				selectedButton.image.color = selectedButton.colors.normalColor;
			}
			if (collision.TryGetComponent<Button>(out selectedButton))
			{
				selectedButton.image.color = selectedButton.colors.pressedColor;
			}
		}
	}

	private void OnTriggerExit2D(Collider2D collision)
	{
		if (collision.gameObject.layer == LayerMask.NameToLayer("UI"))
		{
			if (selectedButton != null)
			{
				selectedButton.image.color = selectedButton.colors.normalColor;
			}
			selectedButton = null;
		}
	}
}