feat(SlidingDoor): implement sliding door functionality with open/close events

Assets/Code/Scripts/Interaction/SlidingDoor.cs

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+using UnityEngine;
+using UnityEngine.Events;
+
+public class SlidingDoor : MonoBehaviour
+{
+    public enum SlideAxis { X, Y, Z }
+    public enum SlideDirection { Positive = 1, Negative = -1 }
+
+    [Header("Slide Settings")]
+    [Tooltip("Local axis the door slides along.")]
+    [SerializeField] private SlideAxis axis = SlideAxis.X;
+
+    [Tooltip("Which way along the axis the door opens.")]
+    [SerializeField] private SlideDirection direction = SlideDirection.Positive;
+
+    [Tooltip("How far the door travels when fully open.")]
+    [SerializeField] private float slideDistance = 2f;
+
+    [Tooltip("Movement speed (units per second).")]
+    [SerializeField] private float speed = 3f;
+
+    [Header("Start State")]
+    [SerializeField] private bool startOpen = false;
+
+    [Header("Events")]
+    public UnityEvent OnOpened;
+    public UnityEvent OnClosed;
+
+    private Vector3 m_closedPos;
+    private Vector3 m_openPos;
+    private Vector3 m_targetPos;
+    private bool m_isOpen;
+    private bool m_eventFiredOpen;
+    private bool m_eventFiredClosed;
+
+    private void Awake()
+    {
+        m_closedPos = transform.localPosition;
+        m_openPos = m_closedPos + GetSlideVector() * slideDistance;
+
+        if (startOpen)
+        {
+            transform.localPosition = m_openPos;
+            m_isOpen = true;
+        }
+
+        m_targetPos = m_isOpen ? m_openPos : m_closedPos;
+    }
+
+    private void Update()
+    {
+        transform.localPosition = Vector3.MoveTowards(
+            transform.localPosition, m_targetPos, speed * Time.deltaTime);
+
+        if (Vector3.Distance(transform.localPosition, m_openPos) < 0.01f && !m_eventFiredOpen)
+        {
+            m_eventFiredOpen = true;
+            m_eventFiredClosed = false;
+            OnOpened?.Invoke();
+        }
+        else if (Vector3.Distance(transform.localPosition, m_closedPos) < 0.01f && !m_eventFiredClosed)
+        {
+            m_eventFiredClosed = true;
+            m_eventFiredOpen = false;
+            OnClosed?.Invoke();
+        }
+    }
+
+    public void Open()
+    {
+        m_isOpen = true;
+        m_targetPos = m_openPos;
+    }
+
+    public void Close()
+    {
+        m_isOpen = false;
+        m_targetPos = m_closedPos;
+    }
+
+    public void Toggle()
+    {
+        if (m_isOpen)
+            Close();
+        else
+            Open();
+    }
+
+    private Vector3 GetSlideVector()
+    {
+        float sign = (float)direction;
+        return axis switch
+        {
+            SlideAxis.X => new Vector3(sign, 0f, 0f),
+            SlideAxis.Y => new Vector3(0f, sign, 0f),
+            SlideAxis.Z => new Vector3(0f, 0f, sign),
+            _           => Vector3.right,
+        };
+    }
+
+#if UNITY_EDITOR
+    private void OnDrawGizmos()
+    {
+        Vector3 worldClosed = transform.parent != null
+            ? transform.parent.TransformPoint(transform.localPosition)
+            : transform.position;
+
+        Vector3 slideVec = transform.TransformDirection(GetSlideVector()) * slideDistance;
+        Gizmos.color = Color.cyan;
+        Gizmos.DrawLine(worldClosed, worldClosed + slideVec);
+        Gizmos.DrawWireSphere(worldClosed + slideVec, 0.08f);
+    }
+#endif
+}

Assets/Code/Scripts/Interaction/SlidingDoor.cs.meta

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+fileFormatVersion: 2
+guid: 0cc6c36a261296f4c82e315da147ba93