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Assets/Opsive/UltimateCharacterController/Scripts/Input/VirtualControls/VirtualButton.cs

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+/// ---------------------------------------------
+/// Ultimate Character Controller
+/// Copyright (c) Opsive. All Rights Reserved.
+/// https://www.opsive.com
+/// ---------------------------------------------
+
+namespace Opsive.UltimateCharacterController.Input.VirtualControls
+{
+    using UnityEngine;
+    using UnityEngine.EventSystems;
+
+    /// <summary>
+    /// A virtual control that the player can press.
+    /// </summary>
+    public class VirtualButton : VirtualControl, IPointerDownHandler, IPointerUpHandler
+    {
+        [Tooltip("The name of the input.")]
+        [SerializeField] protected string m_ButtonName;
+
+        private bool m_Pressed;
+        private int m_Frame;
+
+        /// <summary>
+        /// Initialize the default values.
+        /// </summary>
+        protected override void Awake()
+        {
+            if (string.IsNullOrEmpty(m_ButtonName)) {
+                Debug.LogError("Error: The virtual button " + gameObject.name + " cannot have an empty input name.");
+                return;
+            }
+
+            base.Awake();
+
+            if (m_VirtualControlsManager != null) {
+                m_VirtualControlsManager.RegisterVirtualControl(m_ButtonName, this);
+            }
+        }
+
+        /// <summary>
+        /// Callback when a pointer has pressed on the button.
+        /// </summary>
+        /// <param name="data">The pointer data.</param>
+        public void OnPointerDown(PointerEventData data)
+        {
+            if (m_Pressed) {
+                return;
+            }
+
+            m_Pressed = true;
+            m_Frame = Time.frameCount;
+        }
+
+        /// <summary>
+        /// Callback when a finger has released the button.
+        /// </summary>
+        /// <param name="data">The pointer data.</param>
+        public void OnPointerUp(PointerEventData data)
+        {
+            if (!m_Pressed) {
+                return;
+            }
+
+            m_Pressed = false;
+            m_Frame = Time.frameCount;
+        }
+
+        /// <summary>
+        /// Returns if the button is true with the specified ButtonAction.
+        /// </summary>
+        /// <param name="action">The type of action to check.</param>
+        /// <returns>The status of the action.</returns>
+        public override bool GetButton(InputBase.ButtonAction action)
+        {
+            if (action == InputBase.ButtonAction.GetButton) {
+                return m_Pressed;
+            }
+
+            // GetButtonDown and GetButtonUp requires the button to be pressed or released within the same frame.
+            if (Time.frameCount - m_Frame > 0) {
+                return false;
+            }
+
+            return action == InputBase.ButtonAction.GetButtonDown ? m_Pressed : !m_Pressed;
+        }
+
+        /// <summary>
+        /// The object has been destroyed.
+        /// </summary>
+        private void OnDestroy()
+        {
+            if (m_VirtualControlsManager != null) {
+                m_VirtualControlsManager.UnregisterVirtualControl(m_ButtonName);
+            }
+        }
+    }
+}