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Assets/Plugins/Easy Save 3/Scripts/Save Slots/ES3Slot.cs

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+#if ES3_TMPRO && ES3_UGUI
+
+using TMPro;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using UnityEngine.UI;
+
+/// <summary>
+/// A Component added to a save slot to allow it to be selected, deleted, and un-deleted.
+/// </summary>
+public class ES3Slot : MonoBehaviour
+{
+    [Tooltip("The text label containing the slot name.")]
+    public TMP_Text nameLabel;
+    [Tooltip("The text label containing the last updated timestamp for the slot.")]
+    public TMP_Text timestampLabel;
+
+    [Tooltip("The confirmation dialog to show if showConfirmationIfExists is true.")]
+    public GameObject confirmationDialog;
+
+    // The manager this slot belongs to. This is set by the manager which creates it.
+    public ES3SlotManager mgr;
+
+    [Tooltip("The button for selecting this slot.")]
+    public Button selectButton;
+    [Tooltip("The button for deleting this slot.")]
+    public Button deleteButton;
+    [Tooltip("The button for undoing the deletion of this slot.")]
+    public Button undoButton;
+
+    // Whether this slot has been marked for deletion.
+    protected bool markedForDeletion = false;
+
+#region Initialisation and Clean-up
+
+    // See Unity's docs for more info: https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnEnable.html
+    public virtual void OnEnable()
+    {
+        // Add the button press listeners.
+        selectButton.onClick.AddListener(TrySelectSlot);
+        deleteButton.onClick.AddListener(MarkSlotForDeletion);
+        undoButton.onClick.AddListener(UnmarkSlotForDeletion);
+    }
+
+    // See Unity's docs for more info: https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnDisable.html
+    public virtual void OnDisable()
+    {
+        // Remove all button press listeners.
+        selectButton.onClick.RemoveAllListeners();
+        deleteButton.onClick.RemoveAllListeners();
+        undoButton.onClick.RemoveAllListeners();
+
+        // If this slot is marked for deletion, delete it.
+        if (markedForDeletion)
+            DeleteSlot();
+    }
+
+#endregion
+
+#region Select methods
+
+    // Called when the Select Slot button is pressed.
+    protected virtual void TrySelectSlot()
+    {
+        // Manage the confirmation dialog if necessary.
+        if(mgr.showConfirmationIfExists)
+        {
+            if (confirmationDialog == null)
+                Debug.LogError("The confirmationDialog field of this ES3SelectSlot Component hasn't been set in the inspector.", this);
+
+            // Display a confirmation dialog if we're overwriting a save slot.
+            if (ES3.FileExists(GetSlotPath()))
+            {
+                // Show the dialog.
+                confirmationDialog.SetActive(true);
+                // Register the event for the confirmation button.
+                confirmationDialog.GetComponent<ES3SlotDialog>().confirmButton.onClick.AddListener(SelectSlot);
+                return;
+            }
+        }
+
+        SelectSlot();
+    }
+
+    // Selects a slot and calls post-selection events if applicable.
+    protected virtual void SelectSlot()
+    {
+        // Hide the confirmation dialog if it's open.
+        confirmationDialog?.SetActive(false);
+
+        // Set the path used by Auto Save.
+        ES3SlotManager.selectedSlotPath = GetSlotPath();
+
+        // When the default path used by Easy Save's methods.
+        ES3Settings.defaultSettings.path = ES3SlotManager.selectedSlotPath;
+
+        // If we've specified an event to be called after the user selects a slot, invoke it.
+        mgr.onAfterSelectSlot?.Invoke();
+
+        // If we've specified a scene to load after the user selects a slot, load it.
+        if (!string.IsNullOrEmpty(mgr.loadSceneAfterSelectSlot))
+            SceneManager.LoadScene(mgr.loadSceneAfterSelectSlot);
+    }
+
+#endregion
+
+#region Delete methods
+
+    // Marks a slot to be deleted and displays an undo button.
+    protected virtual void MarkSlotForDeletion()
+    {
+        markedForDeletion = true;
+        // Make the Undo button visible and hide the Delete button.
+        undoButton.gameObject.SetActive(true);
+        deleteButton.gameObject.SetActive(false);
+    }
+
+    // Unmarks a slot to be deleted and displays an delete button again.
+    protected virtual void UnmarkSlotForDeletion()
+    {
+        markedForDeletion = false;
+        // Make the Undo button visible and hide the Delete button.
+        undoButton.gameObject.SetActive(false);
+        deleteButton.gameObject.SetActive(true);
+    }
+
+    // Deletes a save slot.
+    protected virtual void DeleteSlot()
+    {
+        // Delete the file linked to this slot.
+        ES3.DeleteFile(GetSlotPath());
+        // Destroy this slot.
+        Destroy(this.gameObject);
+    }
+
+#endregion
+
+#region Utility methods
+
+    // Gets the relative file path of the slot with the given slot name.
+    public virtual string GetSlotPath()
+    {
+        // Get the slot path from the manager.
+        return mgr.GetSlotPath(nameLabel.text);
+    }
+
+#endregion
+}
+
+#endif