Help me with this script! Im getting error!!!

Questions & Answers
1

Im getting a error : Cannot implicitly convert type ‘bool’ to ‘int’. Can someone fix my dumb script?

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class Hotbar : MonoBehaviour {
	public int selectedSlot = 1;
	public Image[] slots;
	public Image selector;
	private Inventory playerInv;
	private void Update() {
		if (playerInv == null) {
			playerInv = GameObject.FindWithTag ("Player").GetComponent<Inventory>();
			return;
		}
		UpdateScrolling ();
		UpdateSelector ();
		UpdateItems ();
	}
	private void UpdateScrolling() {
		selectedSlot = Input.GetMouseButton (1);
		if (selectedSlot < 1) {
			selectedSlot = 9;
		}
		if (selectedSlot > 9) {
			selectedSlot = 1;
		}
	}
	private void UpdateSelector() {
		selector.rectTransform.localPosition = slots [selectedSlot - 1].rectTransform.localPosition;
	}
	private void UpdateItems() {

	}
	public bool IsMouseOverSlot(int slotIndex) {
		RectTransform rt = slots [slotIndex].GetComponent<RectTransform> ();
		if (Input.mousePosition.x > rt.position.x - rt.sizeDelta.x * 1.5f && Input.mousePosition.x < rt.position.x + rt.sizeDelta.x * 1.5f) {
			if (Input.mousePosition.y > rt.position.y - rt.sizeDelta.y * 1.5f && Input.mousePosition.y < rt.position.y + rt.sizeDelta.y * 1.5f) {
				return true;
			}
		}
		return false;
	}
}
2

I think this should fix it (Untested)

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class Hotbar : MonoBehaviour {
	public int selectedSlot = 1;
	public Image[] slots;
	public Image selector;
    private Inventory playerInv;
	private void Update() {
    if (playerInv == null) {
            playerInv = GameObject.FindWithTag ("Player").GetComponent<Inventory>();
            return;
    }
		UpdateScrolling ();
		UpdateSelector ();
		UpdateItems ();
	}
	private void UpdateScrolling() {
		selectedSlot = Input.GetMouseButton (1).GetHashCode();
		Debug.Log (selectedSlot);
		if (selectedSlot < 1) {
			selectedSlot = 9;
		}
		if (selectedSlot > 9) {
			selectedSlot = 1;
		}
	}
	private void UpdateSelector() {
		selector.rectTransform.localPosition = slots [selectedSlot - 1].rectTransform.localPosition;
	}
	private void UpdateItems() {
		
	}
	public bool IsMouseOverSlot(int slotIndex) {
		RectTransform rt = slots [slotIndex].GetComponent<RectTransform> ();
		if (Input.mousePosition.x > rt.position.x - rt.sizeDelta.x * 1.5f && Input.mousePosition.x < rt.position.x + rt.sizeDelta.x * 1.5f) {
			if (Input.mousePosition.y > rt.position.y - rt.sizeDelta.y * 1.5f && Input.mousePosition.y < rt.position.y + rt.sizeDelta.y * 1.5f) {
				return true;
			}
		}
		return false;
	}
}