266 lines
12 KiB
C#
266 lines
12 KiB
C#
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using UnityEngine;
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using UnityEngine.Tilemaps;
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using Object = UnityEngine.Object;
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namespace UnityEditor.Tilemaps
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{
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/// <summary>
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/// Utility Class for creating Palettes
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/// </summary>
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public static class GridPaletteUtility
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{
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internal static readonly Vector3 defaultSortAxis = new Vector3(0f, 0f, 1f);
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internal static RectInt GetBounds(GameObject palette)
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{
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if (palette == null)
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return new RectInt();
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Vector2Int min = new Vector2Int(int.MaxValue, int.MaxValue);
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Vector2Int max = new Vector2Int(int.MinValue, int.MinValue);
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foreach (var tilemap in palette.GetComponentsInChildren<Tilemap>())
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{
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Vector3Int p1 = tilemap.editorPreviewOrigin;
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Vector3Int p2 = p1 + tilemap.editorPreviewSize;
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Vector2Int tilemapMin = new Vector2Int(Mathf.Min(p1.x, p2.x), Mathf.Min(p1.y, p2.y));
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Vector2Int tilemapMax = new Vector2Int(Mathf.Max(p1.x, p2.x), Mathf.Max(p1.y, p2.y));
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min = new Vector2Int(Mathf.Min(min.x, tilemapMin.x), Mathf.Min(min.y, tilemapMin.y));
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max = new Vector2Int(Mathf.Max(max.x, tilemapMax.x), Mathf.Max(max.y, tilemapMax.y));
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}
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return GridEditorUtility.GetMarqueeRect(min, max);
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}
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/// <summary>
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/// Creates a Palette Asset at the current selected folder path. This will show a popup allowing you to choose
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/// a different folder path for saving the Palette Asset if required.
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/// </summary>
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/// <param name="name">Name of the Palette Asset.</param>
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/// <param name="layout">Grid Layout of the Palette Asset.</param>
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/// <param name="cellSizing">Cell Sizing of the Palette Asset.</param>
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/// <param name="cellSize">Cell Size of the Palette Asset.</param>
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/// <param name="swizzle">Cell Swizzle of the Palette.</param>
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/// <returns>The created Palette Asset if successful.</returns>
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public static GameObject CreateNewPaletteAtCurrentFolder(string name, GridLayout.CellLayout layout, GridPalette.CellSizing cellSizing, Vector3 cellSize, GridLayout.CellSwizzle swizzle)
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{
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return CreateNewPaletteAtCurrentFolder(name, layout, cellSizing, cellSize, swizzle
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, TransparencySortMode.Default, defaultSortAxis);
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}
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/// <summary>
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/// Creates a Palette Asset at the current selected folder path. This will show a popup allowing you to choose
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/// a different folder path for saving the Palette Asset if required.
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/// </summary>
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/// <param name="name">Name of the Palette Asset.</param>
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/// <param name="layout">Grid Layout of the Palette Asset.</param>
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/// <param name="cellSizing">Cell Sizing of the Palette Asset.</param>
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/// <param name="cellSize">Cell Size of the Palette Asset.</param>
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/// <param name="swizzle">Cell Swizzle of the Palette.</param>
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/// <param name="sortMode">Transparency Sort Mode for the Palette</param>
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/// <param name="sortAxis">Transparency Sort Axis for the Palette</param>
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/// <returns>The created Palette Asset if successful.</returns>
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public static GameObject CreateNewPaletteAtCurrentFolder(string name
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, GridLayout.CellLayout layout
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, GridPalette.CellSizing cellSizing
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, Vector3 cellSize
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, GridLayout.CellSwizzle swizzle
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, TransparencySortMode sortMode
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, Vector3 sortAxis)
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{
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string defaultPath = ProjectBrowser.s_LastInteractedProjectBrowser ? ProjectBrowser.s_LastInteractedProjectBrowser.GetActiveFolderPath() : "Assets";
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string folderPath = EditorUtility.SaveFolderPanel("Create palette into folder ", defaultPath, "");
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folderPath = FileUtil.GetProjectRelativePath(folderPath);
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if (string.IsNullOrEmpty(folderPath))
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return null;
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return CreateNewPalette(folderPath, name, layout, cellSizing, cellSize, swizzle, sortMode, sortAxis);
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}
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/// <summary>
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/// Creates a Palette Asset at the given folder path.
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/// </summary>
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/// <param name="folderPath">Folder Path of the Palette Asset.</param>
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/// <param name="name">Name of the Palette Asset.</param>
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/// <param name="layout">Grid Layout of the Palette Asset.</param>
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/// <param name="cellSizing">Cell Sizing of the Palette Asset.</param>
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/// <param name="cellSize">Cell Size of the Palette Asset.</param>
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/// <param name="swizzle">Cell Swizzle of the Palette.</param>
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/// <returns>The created Palette Asset if successful.</returns>
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public static GameObject CreateNewPalette(string folderPath
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, string name
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, GridLayout.CellLayout layout
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, GridPalette.CellSizing cellSizing
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, Vector3 cellSize
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, GridLayout.CellSwizzle swizzle)
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{
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return CreateNewPalette(folderPath, name, layout, cellSizing, cellSize, swizzle,
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TransparencySortMode.Default, defaultSortAxis);
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}
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/// <summary>
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/// Creates a Palette Asset at the given folder path.
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/// </summary>
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/// <param name="folderPath">Folder Path of the Palette Asset.</param>
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/// <param name="name">Name of the Palette Asset.</param>
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/// <param name="layout">Grid Layout of the Palette Asset.</param>
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/// <param name="cellSizing">Cell Sizing of the Palette Asset.</param>
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/// <param name="cellSize">Cell Size of the Palette Asset.</param>
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/// <param name="swizzle">Cell Swizzle of the Palette.</param>
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/// <param name="sortMode">Transparency Sort Mode for the Palette</param>
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/// <param name="sortAxis">Transparency Sort Axis for the Palette</param>
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/// <returns>The created Palette Asset if successful.</returns>
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public static GameObject CreateNewPalette(string folderPath
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, string name
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, GridLayout.CellLayout layout
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, GridPalette.CellSizing cellSizing
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, Vector3 cellSize
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, GridLayout.CellSwizzle swizzle
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, TransparencySortMode sortMode
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, Vector3 sortAxis)
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{
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GameObject temporaryGO = new GameObject(name);
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Grid grid = temporaryGO.AddComponent<Grid>();
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// We set size to kEpsilon to mark this as new uninitialized palette
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// Nice default size can be decided when first asset is dragged in
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grid.cellSize = cellSize;
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grid.cellLayout = layout;
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grid.cellSwizzle = swizzle;
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CreateNewLayer(temporaryGO, "Layer1", layout);
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string path = AssetDatabase.GenerateUniqueAssetPath(folderPath + "/" + name + ".prefab");
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Object prefab = PrefabUtility.SaveAsPrefabAssetAndConnect(temporaryGO, path, InteractionMode.AutomatedAction);
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GridPalette palette = CreateGridPalette(cellSizing, sortMode, sortAxis);
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AssetDatabase.AddObjectToAsset(palette, prefab);
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PrefabUtility.ApplyPrefabInstance(temporaryGO, InteractionMode.AutomatedAction);
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AssetDatabase.Refresh();
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Object.DestroyImmediate(temporaryGO);
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return AssetDatabase.LoadAssetAtPath<GameObject>(path);
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}
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private static GameObject CreateNewLayer(GameObject paletteGO, string name, GridLayout.CellLayout layout)
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{
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GameObject newLayerGO = new GameObject(name);
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var tilemap = newLayerGO.AddComponent<Tilemap>();
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var renderer = newLayerGO.AddComponent<TilemapRenderer>();
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newLayerGO.transform.parent = paletteGO.transform;
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newLayerGO.layer = paletteGO.layer;
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// Set defaults for certain layouts
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switch (layout)
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{
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case GridLayout.CellLayout.Hexagon:
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{
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tilemap.tileAnchor = Vector3.zero;
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break;
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}
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case GridLayout.CellLayout.Isometric:
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{
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renderer.sortOrder = TilemapRenderer.SortOrder.TopRight;
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break;
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}
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case GridLayout.CellLayout.IsometricZAsY:
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{
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renderer.sortOrder = TilemapRenderer.SortOrder.TopRight;
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renderer.mode = TilemapRenderer.Mode.Individual;
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break;
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}
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}
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return newLayerGO;
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}
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internal static GridPalette GetGridPaletteFromPaletteAsset(Object palette)
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{
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string assetPath = AssetDatabase.GetAssetPath(palette);
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GridPalette paletteAsset = AssetDatabase.LoadAssetAtPath<GridPalette>(assetPath);
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return paletteAsset;
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}
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internal static GridPalette CreateGridPalette(GridPalette.CellSizing cellSizing)
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{
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return CreateGridPalette(cellSizing, TransparencySortMode.Default, defaultSortAxis);
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}
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internal static GridPalette CreateGridPalette(GridPalette.CellSizing cellSizing
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, TransparencySortMode sortMode
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, Vector3 sortAxis
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)
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{
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var palette = ScriptableObject.CreateInstance<GridPalette>();
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palette.name = "Palette Settings";
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palette.cellSizing = cellSizing;
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palette.transparencySortMode = sortMode;
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palette.transparencySortAxis = sortAxis;
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return palette;
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}
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internal static Vector3 CalculateAutoCellSize(Grid grid, Vector3 defaultValue)
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{
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Tilemap[] tilemaps = grid.GetComponentsInChildren<Tilemap>();
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Sprite[] sprites = null;
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var maxSize = Vector2.negativeInfinity;
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var minSize = Vector2.positiveInfinity;
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// Get minimum and maximum sizes for Sprites
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foreach (var tilemap in tilemaps)
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{
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var spriteCount = tilemap.GetUsedSpritesCount();
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if (sprites == null || sprites.Length < spriteCount)
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sprites = new Sprite[spriteCount];
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tilemap.GetUsedSpritesNonAlloc(sprites);
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for (int i = 0; i < spriteCount; ++i)
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{
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Sprite sprite = sprites[i];
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if (sprite != null)
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{
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var cellSize = new Vector3(sprite.rect.width, sprite.rect.height, 0f) / sprite.pixelsPerUnit;
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if (tilemap.cellSwizzle == GridLayout.CellSwizzle.YXZ)
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{
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var swap = cellSize.x;
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cellSize.x = cellSize.y;
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cellSize.y = swap;
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}
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minSize.x = Mathf.Min(cellSize.x, minSize.x);
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minSize.y = Mathf.Min(cellSize.y, minSize.y);
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maxSize.x = Mathf.Max(cellSize.x, maxSize.x);
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maxSize.y = Mathf.Max(cellSize.y, maxSize.y);
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}
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}
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}
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// Validate that Sprites are in multiples of sizes
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foreach (var tilemap in tilemaps)
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{
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var spriteCount = tilemap.GetUsedSpritesCount();
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if (sprites == null || sprites.Length < spriteCount)
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sprites = new Sprite[spriteCount];
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tilemap.GetUsedSpritesNonAlloc(sprites);
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for (int i = 0; i < spriteCount; ++i)
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{
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Sprite sprite = sprites[i];
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if (sprite != null)
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{
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var cellSize = new Vector3(sprite.rect.width, sprite.rect.height, 0f) / sprite.pixelsPerUnit;
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if (tilemap.cellSwizzle == GridLayout.CellSwizzle.YXZ)
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{
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var swap = cellSize.x;
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cellSize.x = cellSize.y;
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cellSize.y = swap;
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}
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// Return maximum size if sprites are not multiples of the smallest size
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if (cellSize.x % minSize.x > 0)
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return maxSize.x * maxSize.y <= 0f ? defaultValue : new Vector3(maxSize.x, maxSize.y, 0f);
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if (cellSize.y % minSize.y > 0)
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return maxSize.x * maxSize.y <= 0f ? defaultValue : new Vector3(maxSize.x, maxSize.y, 0f);
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}
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}
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}
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return minSize.x * minSize.y <= 0f || minSize == Vector2.positiveInfinity ? defaultValue : new Vector3(minSize.x, minSize.y, 0f);
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}
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}
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}
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