SimpleSpritePackerEditor.SPTools.GetEditorPrefBool C# (CSharp) Method

        public static bool GetEditorPrefBool(string key)
        {
            return EditorPrefs.GetBool(key);
        }

        private void DropAreaGUI()
        {
            Event evt       = Event.current;
            Rect  drop_area = GUILayoutUtility.GetRect(0.0f, 50.0f, GUILayout.ExpandWidth(true));

            this.boxStyle.alignment = TextAnchor.MiddleCenter;
            GUI.color = SPInstanceEditor.green;
            GUI.Box(drop_area, "Add Sprite (Drop Here)", this.boxStyle);
            GUI.color = Color.white;

            switch (evt.type)
            {
            case EventType.DragUpdated:
            case EventType.DragPerform:
            {
                if (!drop_area.Contains(evt.mousePosition))
                {
                    return;
                }

                DragAndDrop.visualMode = DragAndDropVisualMode.Copy;

                if (evt.type == EventType.DragPerform)
                {
                    DragAndDrop.AcceptDrag();

                    Object[] filtered = SPTools.FilterResourcesForAtlasImport(DragAndDrop.objectReferences);

                    // Disallow miltiple sprites of the same source, if set so
                    if (!SPTools.GetEditorPrefBool(SPTools.Settings_AllowMuliSpritesOneSource))
                    {
                        // Additional filtering specific to the instance
                        for (int i = 0; i < filtered.Length; i++)
                        {
                            if (this.m_SPInstance.sprites.Find(s => s.source == filtered[i]) != null)
                            {
                                Debug.LogWarning("A sprite with source \"" +
                                                 SimpleSpritePackerEditor.SPTools.GetAssetPath(filtered[i]) +
                                                 "\" already exists in the atlas, consider changing the Sprite Packer settings to allow multiple sprites from the same source.");
                                System.Array.Clear(filtered, i, 1);
                            }
                        }
                    }

                    // Types are handled internally
                    this.m_SPInstance.QueueAction_AddSprites(filtered);
                }
                break;
            }
            }
        }