// ---------------------------------------------------------------------------
    // Load preferences from state scriptable object
    // ---------------------------------------------------------------------------
    public static void Restore_Palette_Items()
    {
        // Get or scriptable object to store the interface state data
        Get_Reference_To_Scriptable_Object();

        // Get palette item count
        int paletteItemCount = state.prefabs.Length;

        // Load palette item tooltips
        string[] paletteItemTooltip = state.paletteItemTooltip;

        // Create empty Texture2D array and empty GUIContent array
        Texture2D[]  paletteTexture2D  = new Texture2D[paletteItemCount];
        GUIContent[] paletteGuiContent = new GUIContent[paletteItemCount];

        // Get texture path to save palette images
        string texturePath = MAST_Asset_Loader.GetMASTRootFolder() + "/Etc/Temp/temp_palette_image_";

        // Loop through each palette item
        for (int i = 0; i < paletteItemCount; i++)
        {
            // Load Texture2D saved as PNG on disk back to palette item
            byte[] bytes = File.ReadAllBytes(texturePath + i.ToString("000") + ".png");
            paletteTexture2D[i] = new Texture2D(2, 2);
            paletteTexture2D[i].LoadImage(bytes);
        }

        // Copy palette GUI content to Palette class
        MAST_Palette.RestorePaletteData(state.prefabs, paletteTexture2D, paletteItemTooltip);
    }
Exemplo n.º 2
0
    public static GameObject PlacePrefabInScene()
    {
        // Make sure target parent is referenced
        ReferenceTargetParent();

        if (MAST_Placement_Visualizer.visualizerOnGrid && MAST_Placement_Visualizer.GetGameObject() != null &&
            MAST_Placement_Visualizer.GetGameObject() != null)
        {
            // If drawing continuous and an object was just drawn here, exit without drawing
            if (MAST_Placement_Interface.placementMode == MAST_Placement_Interface.PlacementMode.DrawContinuous)
            {
                if (lastPosition == MAST_Placement_Visualizer.GetGameObject().transform.position)
                {
                    return(null);
                }
            }

            // If GameObject already exists here, exit without placing the block
            if (GameObjectAlreadyHere())
            {
                return(null);
            }

            // Instantiate the prefab
            GameObject newPrefab = (GameObject)PrefabUtility.InstantiatePrefab(MAST_Palette.GetSelectedPrefab());

            // Correct GameObject transform and name "to remove (clone)"
            newPrefab.transform.rotation   = MAST_Placement_Visualizer.GetGameObject().transform.rotation;
            newPrefab.transform.localScale = MAST_Placement_Visualizer.GetGameObject().transform.localScale;
            newPrefab.transform.position   = MAST_Placement_Visualizer.GetGameObject().transform.position;
            newPrefab.name = MAST_Palette.GetSelectedPrefab().name;

            // Make new prefab child of the target parent
            newPrefab.transform.parent = targetParent.transform;

            // Add MAST script to GameObject if it was missing it
            if (!newPrefab.GetComponent <MAST_Prefab_Component>())
            {
                newPrefab.AddComponent <MAST_Prefab_Component>();
            }

            // Randomize the seed after placement
            if (MAST_Settings.gui.toolbar.selectedDrawToolIndex == 3)
            {
                MAST_Placement_Randomizer.GenerateNewRandomSeed();
            }

            // Save this GameObject position
            lastPosition = MAST_Placement_Visualizer.GetGameObject().transform.position;

            // Make this an Undo point, just after placing the prefab
            Undo.RegisterCreatedObjectUndo(newPrefab, "Placed new Prefab");

            // Return with newly created GameObject
            return(newPrefab);
        }

        return(null);
    }
Exemplo n.º 3
0
// ---------------------------------------------------------------------------
    #region Palette GUI
// ---------------------------------------------------------------------------
    private void DisplayPaletteGUI()
    {
        // Only draw prefab palette if it is ready
        if (MAST_Palette.IsReady())
        {
            DisplayPaletteGUIPopulated();
        }
        else
        {
            DisplayPaletteGUIPlaceholder();
        }
    }
    // Change visualizer prefab when a new item is selected in the palette menu
    public static void ChangeSelectedPrefab()
    {
        // Get reference to the MAST script attached to the GameObject
        MAST_Placement_Helper.mastScript =
            MAST_Palette.GetSelectedPrefab().GetComponent <MAST_Prefab_Component>();

        // Remove any existing visualizer
        MAST_Placement_Visualizer.RemoveVisualizer();

        // Create a new visualizer
        MAST_Placement_Visualizer.CreateVisualizer(MAST_Palette.GetSelectedPrefab());
    }
    // ---------------------------------------------------------------------------
    // Save preferences to state scriptable object
    // ---------------------------------------------------------------------------
    public static void Save_Palette_Items(bool forceSave = false)
    {
        // Get or create a scriptable object to store the interface state data
        Get_Reference_To_Scriptable_Object();

        // If palette data has changed or if forcing a save "from loading new prefabs with button"
        if (MAST_Palette.GetPrefabArray() != state.prefabs || forceSave)
        {
            // Delete any previous palette items same in the "MAST/Etc/Temp" folder
            string paletteImagePath = MAST_Asset_Loader.GetMASTRootFolder() + "/Etc/Temp";
            if (Directory.Exists(paletteImagePath))
            {
                Directory.Delete(paletteImagePath, true);
            }
            Directory.CreateDirectory(paletteImagePath);

            // Save prefabs
            state.prefabs = MAST_Palette.GetPrefabArray();

            // Define palette item tooltip array
            string[] paletteItemTooltip = new string[MAST_Palette.GetGUIContentArray().Length];

            // Get texture path to save palette images
            string texturePath = MAST_Asset_Loader.GetMASTRootFolder() + "/Etc/Temp/temp_palette_image_";

            // Loop through each item in the palette
            for (int i = 0; i < MAST_Palette.GetGUIContentArray().Length; i++)
            {
                // Get the tooltip from the palette GUIContent
                paletteItemTooltip[i] = MAST_Palette.GetGUIContentArray()[i].tooltip;

                // Encode this palette item image to PNG then save to disk
                byte[] bytes = MAST_Palette.GetTexture2DArray()[i].EncodeToPNG();
                File.WriteAllBytes(texturePath + i.ToString("000") + ".png", bytes);
            }

            // Save palette item tooltips and images (converted to byte arrays)
            state.paletteItemTooltip = paletteItemTooltip;
        }

        // Save state changes to disk
        Save_Changes_To_Disk();
    }
Exemplo n.º 6
0
    // -----------------------------------------------------------------------
    // Get a random prefab from the same category as the selected prefab
    // -----------------------------------------------------------------------
    private static void GetRandomPrefabInCategory(int categoryID)
    {
        // Create a list to hold all viable replacement prefabs
        List <int> replacementPrefabIndexList = new List <int>();

        // Define MAST component script variable outside the foreach loop
        MAST_Prefab_Component mastScript;

        // Loop through each prefab in the palette
        for (int prefabIndex = 0; prefabIndex < MAST_Palette.GetPrefabArray().Length; prefabIndex++)
        {
            // Get the MAST component script attached to this prefab
            mastScript = MAST_Palette.GetPrefabArray()[prefabIndex].GetComponent <MAST_Prefab_Component>();

            // Wrap within a try/catch incase a MAST component script isn't attached to a prefab
            try
            {
                // If prefab category ID matches and prefab is replaceable, add it to replacement prefab list
                if (mastScript.categoryID == categoryID)
                {
                    if (mastScript.randomizer.replaceable)
                    {
                        replacementPrefabIndexList.Add(prefabIndex);
                    }
                }
            }
            catch
            {
                // Do nothing with an error.  No MAST script was attached, so no categoryID
            }
        }

        // Get a random number between 0 and the total amount of replacement prefabs - 1
        int replacementPrefabIndex = (int)Random.Range(0, replacementPrefabIndexList.Count);

        // Select the new prefab
        MAST_Palette.selectedItemIndex = replacementPrefabIndexList[replacementPrefabIndex];
        MAST_Placement_Interface.ChangeSelectedPrefab();
    }
Exemplo n.º 7
0
// ---------------------------------------------------------------------------
    #region Toolbar GUI
// ---------------------------------------------------------------------------
    private void DisplayToolbarGUI()
    {
        // Calculate toolbar icon size
        toolBarIconSize = (position.height / 15.3f) * MAST_Settings.gui.toolbar.scale;

        GUILayout.Space(toolBarIconSize / 10);

        GUILayout.BeginVertical();

        GUILayout.Space(toolBarIconSize / 7.5f);

        // ----------------------------------------------
        // Grid Section
        // ----------------------------------------------
        GUILayout.BeginVertical("MAST Toolbar BG Inset");

        // ------------------------------------
        // Grid Up Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconGridUp, "Move Grid Up"),
                             "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
        {
            MAST_Grid_Manager.MoveGridUp();
        }

        // ------------------------------------
        // Toggle Grid Button
        // ------------------------------------
        EditorGUI.BeginChangeCheck();

        // OnScene Enable/Disable Randomizer Icon Button
        MAST_Grid_Manager.gridExists = GUILayout.Toggle(
            MAST_Grid_Manager.gridExists,
            new GUIContent(iconGridToggle, "Toggle Scene Grid"),
            "MAST Toggle", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize));

        // If randomizer enabled value changed, process the change
        if (EditorGUI.EndChangeCheck())
        {
            MAST_Grid_Manager.ChangeGridVisibility();
        }

        // ------------------------------------
        // Grid Down Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconGridDown, "Move Grid Down"),
                             "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
        {
            MAST_Grid_Manager.MoveGridDown();
        }

        GUILayout.EndVertical();

        GUILayout.Space(toolBarIconSize / 5);

        // ----------------------------------------------
        // Draw Tool Section
        // ----------------------------------------------
        GUILayout.BeginVertical("MAST Toolbar BG Inset");

        // ------------------------------------
        // Add Draw Tool Toggle Group
        // ------------------------------------
        EditorGUI.BeginChangeCheck();

        // Create drawtools SelectionGrid
        int newSelectedDrawToolIndex = GUILayout.SelectionGrid(
            MAST_Settings.gui.toolbar.selectedDrawToolIndex,
            guiContentDrawTool, 1, "MAST Toggle",
            GUILayout.Width(toolBarIconSize),
            GUILayout.Height(toolBarIconSize * 5));

        // If the draw tool was changed
        if (EditorGUI.EndChangeCheck())
        {
            // If the draw tool was clicked again, deselect it
            if (newSelectedDrawToolIndex == MAST_Settings.gui.toolbar.selectedDrawToolIndex)
            {
                MAST_Settings.gui.toolbar.selectedDrawToolIndex = -1;

                MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.None);

                drawing  = false;
                painting = false;
                erasing  = false;
            }

            // If a different draw tool was clicked, change to it
            else
            {
                MAST_Settings.gui.toolbar.selectedDrawToolIndex = newSelectedDrawToolIndex;

                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 1)
                {
                    drawing = false;
                }
                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 2)
                {
                    painting = false;
                }
                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 4)
                {
                    erasing = false;
                }

                switch (MAST_Settings.gui.toolbar.selectedDrawToolIndex)
                {
                // Draw Single Tool selected
                case 0:
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.DrawSingle);
                    break;

                // Draw Continuous Tool selected
                case 1:
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.DrawContinuous);
                    break;

                // Flood Fill Tool selected
                case 2:
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.PaintArea);
                    break;

                // Randomizer Tool selected
                case 3:
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.Randomize);
                    SceneView.RepaintAll();
                    break;

                // Eraser Tool selected
                case 4:
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.Erase);
                    SceneView.RepaintAll();
                    break;
                }
            }
        }

        GUILayout.EndVertical();

        GUILayout.Space(toolBarIconSize / 5);

        // ----------------------------------------------
        // Manipulate Section
        // ----------------------------------------------
        GUILayout.BeginVertical("MAST Toolbar BG Inset");

        // ------------------------------------
        // Rotate Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconRotate, "Rotate Prefab/Selection"),
                             "MAST Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize)))
        {
            MAST_Placement_Manipulate.RotateObject();
        }

        // OnScene Change Rotate Axis Icon Button
        switch (MAST_Placement_Manipulate.GetCurrentRotateAxis())
        {
        case MAST_Placement_Manipulate.Axis.X:
            if (GUILayout.Button(new GUIContent(iconAxisX, "Change Rotate Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleRotateAxis();
            }
            break;

        case MAST_Placement_Manipulate.Axis.Y:
            if (GUILayout.Button(new GUIContent(iconAxisY, "Change Rotate Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleRotateAxis();
            }
            break;

        case MAST_Placement_Manipulate.Axis.Z:
            if (GUILayout.Button(new GUIContent(iconAxisZ, "Change Rotate Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleRotateAxis();
            }
            break;
        }

        GUILayout.Space(toolBarIconSize / 10);

        // ------------------------------------
        // Flip Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconFlip, "Flip Prefab/Selection"),
                             "MAST Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize)))
        {
            MAST_Placement_Manipulate.FlipObject();
        }

        // OnScene Change Flip Axis Icon Button
        switch (MAST_Placement_Manipulate.GetCurrentFlipAxis())
        {
        case MAST_Placement_Manipulate.Axis.X:
            if (GUILayout.Button(new GUIContent(iconAxisX, "Change Flip Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleFlipAxis();
            }
            break;

        case MAST_Placement_Manipulate.Axis.Y:
            if (GUILayout.Button(new GUIContent(iconAxisY, "Change Flip Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleFlipAxis();
            }
            break;

        case MAST_Placement_Manipulate.Axis.Z:
            if (GUILayout.Button(new GUIContent(iconAxisZ, "Change Flip Axis"),
                                 "MAST Half Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize / 2)))
            {
                MAST_Placement_Manipulate.ToggleFlipAxis();
            }
            break;
        }

        GUILayout.EndVertical();

        GUILayout.Space(toolBarIconSize / 5);

        // ----------------------------------------------
        // Misc Section
        // ----------------------------------------------
        GUILayout.BeginVertical("MAST Toolbar BG Inset");

        // ------------------------------------
        // Load Palette Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconLoadFromFolder, "Load prefabs from a project folder"),
                             "MAST Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize)))
        {
            // Process prefabs for palette and save chosen path for future use
            string chosenPath =
                MAST_Palette.LoadPrefabs(MAST_Interface_Data_Manager.state.lastPrefabPath);

            // If a folder was chosen "Cancel was not clicked"
            if (chosenPath != "")
            {
                // Save the path the user chose and all palette items
                MAST_Interface_Data_Manager.state.lastPrefabPath = chosenPath;
                MAST_Interface_Data_Manager.Save_Palette_Items(true);
                MAST_Interface_Data_Manager.Save_Changes_To_Disk();
            }
        }

        // ------------------------------------
        // Open Tools Window Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconTools, "Tools"),
                             "MAST Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize)))
        {
            // If Tools window is closed, show and initialize it
            if (Tools == null)
            {
                Tools = (MAST_Tools_Window)EditorWindow.GetWindow(
                    typeof(MAST_Tools_Window),
                    true, "MAST Tools");

                Tools.minSize = Tools.maxSize = new Vector2(330, 300);
            }

            // If Tools window is open, close it
            else
            {
                EditorWindow.GetWindow(typeof(MAST_Tools_Window)).Close();
            }
        }

        // ------------------------------------
        // Open Settings Window Button
        // ------------------------------------
        if (GUILayout.Button(new GUIContent(iconSettings, "Settings"),
                             "MAST Button", GUILayout.Width(toolBarIconSize), GUILayout.Height(toolBarIconSize)))
        {
            // If Settings window is closed, show and initialize it
            if (Settings == null)
            {
                Settings = (MAST_Settings_Window)EditorWindow.GetWindow(
                    typeof(MAST_Settings_Window),
                    true, "MAST Settings");

                Settings.minSize = Settings.maxSize = new Vector2(330, 300);
                Settings.Initialize();
            }

            // If Settings window is open, close it
            else
            {
                EditorWindow.GetWindow(typeof(MAST_Settings_Window)).Close();
            }
        }

        GUILayout.EndVertical();

        GUILayout.EndVertical();
    }
Exemplo n.º 8
0
    // Handle SceneView GUI
    private void SceneviewGUI(SceneView sceneView)
    {
        bool scrollWheelUsed = false;

        // If SHIFT key is held down
        if (Event.current.shift)
        {
            // If mouse scrollwheel was used
            if (Event.current.type == EventType.ScrollWheel)
            {
                // If scrolling wheel down
                if (Event.current.delta.y > 0)
                {
                    // Select next prefab and cycle back to top of prefabs if needed
                    MAST_Palette.selectedItemIndex++;
                    if (MAST_Palette.selectedItemIndex >= MAST_Palette.GetPrefabArray().Length)
                    {
                        MAST_Palette.selectedItemIndex = 0;
                    }

                    scrollWheelUsed = true;
                }

                // If scrolling wheel dupown
                else if (Event.current.delta.y < 0)
                {
                    // Select previous prefab and cycle back to bottom of prefabs if needed
                    MAST_Palette.selectedItemIndex--;
                    if (MAST_Palette.selectedItemIndex < 0)
                    {
                        MAST_Palette.selectedItemIndex = MAST_Palette.GetPrefabArray().Length - 1;
                    }

                    scrollWheelUsed = true;
                }
            }
        }

        // If successfully scrolled wheel
        if (scrollWheelUsed)
        {
            // If no draw tool is selected, then select the draw single tool
            if (MAST_Settings.gui.toolbar.selectedDrawToolIndex == -1)
            {
                MAST_Settings.gui.toolbar.selectedDrawToolIndex = 0;
                MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.DrawSingle);
            }

            // If erase draw tool isn't selected, change the visualizer prefab
            if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 4)
            {
                MAST_Placement_Interface.ChangeSelectedPrefab();
            }

            // Repaint all views
            UnityEditorInternal.InternalEditorUtility.RepaintAllViews();

            // Keep mouseclick from selecting other objects
            GUIUtility.hotControl = GUIUtility.GetControlID(FocusType.Passive);
            Event.current.Use();
        }
    }
Exemplo n.º 9
0
    // ---------------------------------------------------------------------------
    // MAST Window is Enabled
    // ---------------------------------------------------------------------------
    private void OnEnable()
    {
        //Debug.Log("Interface - On Enable");

        // Initialize Preference Manager
        MAST_Settings.Initialize();

        // Initialize the MAST State Manager
        MAST_Interface_Data_Manager.Initialize();


        // Set up deletegates so that OnScene is called automatically
        #if UNITY_2019_1_OR_NEWER
        SceneView.duringSceneGui -= this.OnScene;
        SceneView.duringSceneGui += this.OnScene;
        #else
        SceneView.onSceneGUIDelegate -= this.OnScene;
        SceneView.onSceneGUIDelegate += this.OnScene;
        #endif

        // Set up deletegates for exiting editor mode and returning to editor mode from play mode
        MAST_PlayModeStateListener.onExitEditMode  -= this.ExitEditMode;
        MAST_PlayModeStateListener.onExitEditMode  += this.ExitEditMode;
        MAST_PlayModeStateListener.onEnterEditMode -= this.EnterEditMode;
        MAST_PlayModeStateListener.onEnterEditMode += this.EnterEditMode;

        // Set scene to be updated by mousemovement
        wantsMouseMove = true;

        // If Enabled in Editor Mode
        if (!inPlayMode)
        {
            // Load icon textures
            if (iconGridToggle == null)
            {
                LoadImages();
            }

            // Load custom gui styles
            if (guiSkin == null)
            {
                guiSkin = MAST_Asset_Loader.GetGUISkin();
            }

            // Load interface data back from saved state
            MAST_Interface_Data_Manager.Load_Interface_State();

            // Create a new grid if needed
            if (MAST_Interface_Data_Manager.state.gridExists)
            {
                MAST_Grid_Manager.gridExists = true;
                MAST_Grid_Manager.ChangeGridVisibility();
            }

            // Change placement mode back to what was saved
            MAST_Placement_Interface.ChangePlacementMode(
                (MAST_Placement_Interface.PlacementMode)MAST_Settings.gui.toolbar.selectedDrawToolIndex);

            // TODO:  Reselect item in palette
            //MAST_Palette.selectedItemIndex = newSelectedPaletteItemIndex;

            // If palette images were lost due to serialization, load the palette from saved state
            if (MAST_Palette.ArePaletteImagesLost())
            {
                MAST_Interface_Data_Manager.Restore_Palette_Items();
            }
        }

        // If Enabled in Run Mode
        else
        {
            // Nothing so far, because everything is being triggered in ExitEditMode event method
        }
    }
Exemplo n.º 10
0
    private void DisplayPaletteGUIPopulated()
    {
        GUILayout.BeginVertical("MAST Toolbar BG");  // Begin toolbar vertical layout

        GUILayout.BeginHorizontal();

        // ---------------------------------------------
        // Calculate Palette SelectionGrid size
        // ---------------------------------------------

        // Verical scroll view for palette items
        scrollPos = EditorGUILayout.BeginScrollView(scrollPos);

        // Get scrollview width and height of scrollview if is resized
        float scrollViewWidth = EditorGUIUtility.currentViewWidth - scrollBarWidth - toolBarIconSize - 20;

        int   rowCount         = Mathf.CeilToInt(MAST_Palette.GetGUIContentArray().Length / (float)MAST_Interface_Data_Manager.state.columnCount);
        float scrollViewHeight = rowCount * ((scrollViewWidth) / MAST_Interface_Data_Manager.state.columnCount);

        // ---------------------------------------------
        // Get palette background image
        // ---------------------------------------------
        string paletteGUISkin = null;

        switch (MAST_Settings.gui.palette.bgColor)
        {
        case MAST_GUI_ScriptableObject.PaleteBGColor.Dark:
            paletteGUISkin = "MAST Palette Item Dark";
            break;

        case MAST_GUI_ScriptableObject.PaleteBGColor.Gray:
            paletteGUISkin = "MAST Palette Item Gray";
            break;

        case MAST_GUI_ScriptableObject.PaleteBGColor.Light:
            paletteGUISkin = "MAST Palette Item Light";
            break;
        }

        EditorGUI.BeginChangeCheck();

        // ---------------------------------------------
        // Draw Palette SelectionGrid
        // ---------------------------------------------

        int newSelectedPaletteItemIndex = GUILayout.SelectionGrid(
            MAST_Palette.selectedItemIndex,
            MAST_Palette.GetGUIContentArray(),
            MAST_Interface_Data_Manager.state.columnCount,
            paletteGUISkin,
            GUILayout.Width((float)scrollViewWidth),
            GUILayout.Height(scrollViewHeight)
            );

        // If changes to UI value ocurred, update the grid
        if (EditorGUI.EndChangeCheck())
        {
            // If palette item was deselected by being clicked again
            if (newSelectedPaletteItemIndex == MAST_Palette.selectedItemIndex)
            {
                MAST_Palette.selectedItemIndex = -1;

                // If erase draw tool isn't selected, remove the draw tool and visualizer
                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 4)
                {
                    MAST_Settings.gui.toolbar.selectedDrawToolIndex = -1;
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.None);
                }
            }

            // If palette item selection has changed
            else
            {
                MAST_Palette.selectedItemIndex = newSelectedPaletteItemIndex;

                // If no draw tool is selected, then select the draw single tool
                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex == -1)
                {
                    MAST_Settings.gui.toolbar.selectedDrawToolIndex = 0;
                    MAST_Placement_Interface.ChangePlacementMode(MAST_Placement_Interface.PlacementMode.DrawSingle);
                }

                // If erase draw tool isn't selected, change the visualizer prefab
                if (MAST_Settings.gui.toolbar.selectedDrawToolIndex != 4)
                {
                    MAST_Placement_Interface.ChangeSelectedPrefab();
                }
            }
        }

        EditorGUILayout.EndScrollView();

        GUILayout.EndHorizontal();

        // Palette Column Count Slider
        MAST_Interface_Data_Manager.state.columnCount =
            (int)GUILayout.HorizontalSlider(MAST_Interface_Data_Manager.state.columnCount, 1, 10);

        GUILayout.Space(toolBarIconSize / 10);

        GUILayout.EndVertical();
    }