UIScreen.cs

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using UnityEngine;

namespace HKI.Core.UI
{
    [CreateAssetMenu(fileName = "Screen", menuName = "HKI/UI/Screen", order = 0)]
    public class UIScreen : ScriptableObject
    {
        // Public variables
        [SerializeField] GameObject ScreenPrefab = null;
        [SerializeField] bool DestroyWhenClosed = true;
        [SerializeField] bool DisableScreensUnderneath = true;

        int screenId = 0;

        // Getter
        public int GetScreenId { get { return screenId; } }

        public GameObject GetScreenPrefab { get { return ScreenPrefab; } }
        public bool GetDestroyWhenClosed { get { return DestroyWhenClosed; } }
        public bool GetDisableScreensUnderneath { get { return DisableScreensUnderneath; } }

        // OnEnable function
        void OnEnable()
        {
            screenId = GetInstanceID();
        }

        // Interface function
        public void Open()
        {
            if(UIScreenManager.Instance == null)
            {
                Debug.LogError("(UIScreen)" + name + " you are trying to open the screen but there is no screen manager in this scene(s)!");
                return;
            }

            UIScreenManager.Instance.OpenScreen(this);
        }

        public void Close()
        {
            if(UIScreenManager.Instance == null)
            {
                Debug.LogError("(UIScreen)" + name + " you are trying to close the screen but there is no screen manager in this scene(s)!");
                return;
            }

            UIScreenManager.Instance.CloseScreen(this);
        }
    }
}