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Assets/Third Parties/Opsive/UltimateCharacterController/Scripts/UI/FullScreenItemUIMonitor.cs

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+/// ---------------------------------------------
+/// Ultimate Character Controller
+/// Copyright (c) Opsive. All Rights Reserved.
+/// https://www.opsive.com
+/// ---------------------------------------------
+
+namespace Opsive.UltimateCharacterController.UI
+{
+    using Opsive.Shared.Events;
+    using Opsive.Shared.Game;
+    using Opsive.UltimateCharacterController.Character;
+    using UnityEngine;
+
+    /// <summary>
+    /// The FullScreenItemUIMonitor will show the full screen item UI when the OnItemShowFullScreenUI event is triggered.
+    /// </summary>
+    public class FullScreenItemUIMonitor : CharacterMonitor
+    {
+        [Tooltip("Should the crosshairs be shown?")]
+        [SerializeField] protected int m_ID;
+
+        public int ID { get { return m_ID; } set { m_ID = value; } }
+
+        private UltimateCharacterLocomotion m_CharacterController;
+        private GameObject m_GameObject;
+        private bool m_FullScreenUIShown;
+
+        /// <summary>
+        /// Initialize the default values.
+        /// </summary>
+        protected override void Awake()
+        {
+            base.Awake();
+
+            m_GameObject = gameObject;
+            m_GameObject.SetActive(false);
+        }
+
+        /// <summary>
+        /// Attaches the monitor to the specified character.
+        /// </summary>
+        /// <param name="character">The character to attach the monitor to.</param>
+        protected override void OnAttachCharacter(GameObject character)
+        {
+            if (m_Character != null) {
+                EventHandler.UnregisterEvent<int, bool>(m_Character, "OnItemShowFullScreenUI", OnShowItemUI);
+            }
+
+            base.OnAttachCharacter(character);
+
+            if (m_Character == null) {
+                return;
+            }
+
+            EventHandler.RegisterEvent<int, bool>(m_Character, "OnItemShowFullScreenUI", OnShowItemUI);
+            m_CharacterController = m_Character.GetCachedComponent<UltimateCharacterLocomotion>();
+        }
+
+        /// <summary>
+        /// Shows or hides the full screen item UI.
+        /// </summary>
+        /// <param name="id">The ID of the UI that should be shown or hidden.</param>
+        /// <param name="show">Should the UI be shown?</param>
+        private void OnShowItemUI(int id, bool show)
+        {
+            if (id == -1 || id != m_ID) {
+                return;
+            }
+
+            m_FullScreenUIShown = show;
+
+            // Independent look movement types don't look in the direction of the camera so they shouldn't show the full screen UI.
+            if (m_CharacterController.ActiveMovementType.UseIndependentLook(false)) {
+                show = false;
+            }
+            m_GameObject.SetActive(m_ShowUI && show);
+        }
+
+        /// <summary>
+        /// Can the UI be shown?
+        /// </summary>
+        /// <returns>True if the UI can be shown.</returns>
+        protected override bool CanShowUI()
+        {
+            return base.CanShowUI() && m_FullScreenUIShown;
+        }
+    }
+}