///<summary>Construct a tilemap from Tiled, adding named prefab instances based on Type.</summary>
public override void OnImportAsset(AssetImportContext context)
{
var assetPathPrefix = Path.GetDirectoryName(assetPath) + Path.DirectorySeparatorChar;
// TODO: Support ../source.tsx
var tmx = new TMX(XDocument.Load(assetPath).Element("map"), assetPathPrefix);
// if (tmx.infinite) {
//throw new NotImplementedException("Infinite: " + tmx.infinite);
// }
var layout = tmx.orientation == "orthogonal"
? GridLayout.CellLayout.Rectangle
: tmx.orientation == "isometric"
? GridLayout.CellLayout.Isometric
: GridLayout.CellLayout.Hexagon;
var gids = new uint[tmx.layers.Length][][];
var gidSet = new HashSet <uint>();
// TODO: & 0x1fffffff the gidSet values from tile gids[]
for (var i = 0; i < tmx.layers.Length; ++i)
{
var layer = tmx.layers[i];
if (layer.data.chunks != null) // Tile layer
{
gids[i] = new uint[layer.data.chunks.Length][];
for (var j = 0; j < gids[i].Length; ++j)
{
gids[i][j] = ParseGIDs(
layer.data.encoding,
layer.data.compression,
layer.data.chunks[j].value,
layer.width,
layout
);
gidSet.UnionWith(gids[i][j]);
}
}
else // Object layer
{
foreach (var @object in layer.objects)
{
gidSet.Add(@object.gid & 0x1fffffff);
}
}
}
// Tilesets
var tiles = new Tile[1]; // Global Tile IDs start from 1
foreach (var tsx in tmx.tilesets)
{
Tileset tileset = null;
if (tsx.source == null) // Embedded tileset
{
tileset = TSXImporter.Load(context, tsx);
}
else // External tileset
{
var tilesetSource = "Assets" + Path.GetFullPath(assetPathPrefix + tsx.source).Substring(Application.dataPath.Length);
tileset = AssetDatabase.LoadAssetAtPath <Tileset>(tilesetSource);
context.DependsOnSourceAsset(tilesetSource);
}
var tilesetTiles = new Tile[tileset.tiles.Length];
for (var i = 0; i < tilesetTiles.Length; ++i)
{
if (!gidSet.Contains((uint)(i + tsx.firstgid)))
{
continue;
}
tilesetTiles[i] = tileset.tiles[i].Instantiate(tmx.tilewidth);
context.AddObjectToAsset($"tile{i + tsx.firstgid:0000}", tilesetTiles[i]);
context.AddObjectToAsset($"sprite{i + tsx.firstgid:0000}", tilesetTiles[i].sprite);
for (var j = 0; j < tilesetTiles[i].sprites.Length; ++j)
{
context.AddObjectToAsset($"frame{i + tsx.firstgid:0000}:{j}", tilesetTiles[i].sprites[j]);
}
}
ArrayUtility.AddRange(ref tiles, tilesetTiles);
}
// Grid
var grid = new GameObject(Path.GetFileNameWithoutExtension(assetPath), typeof(Grid));
grid.AddComponent <Rigidbody2D>().bodyType = RigidbodyType2D.Static;
grid.isStatic = true;
grid.GetComponent <Grid>().cellLayout = layout;
grid.GetComponent <Grid>().cellSize = new Vector3(1f, (float)tmx.tileheight / tmx.tilewidth, 1f);
context.AddObjectToAsset("grid", grid);
context.SetMainObject(grid);
var collider = grid.AddComponent <CompositeCollider2D>();
collider.generationType = CompositeCollider2D.GenerationType.Manual;
// Layers
PrefabHelper.cache.Clear();
for (var i = 0; i < tmx.layers.Length; ++i)
{
var layer = tmx.layers[i];
var layerObject = new GameObject(layer.name);
layerObject.transform.parent = grid.transform;
layerObject.isStatic = true;
// Tile layer
if (layer.data.chunks != null)
{
// Tilemap
var tilemap = layerObject.AddComponent <Tilemap>();
var renderer = layerObject.AddComponent <TilemapRenderer>();
layerObject.AddComponent <TilemapCollider2D>().usedByComposite = true;
tilemap.color = new Color(1f, 1f, 1f, layer.opacity);
tilemap.orientation = layout == GridLayout.CellLayout.Hexagon ? Tilemap.Orientation.Custom : Tilemap.Orientation.XY;
tilemap.orientationMatrix = Matrix4x4.TRS(
Vector3.zero,
Quaternion.Euler(0f, 180f, 180f),
Vector3.one
);
tilemap.transform.localScale = layout == GridLayout.CellLayout.Hexagon ? new Vector3(1f, -1f, 1f) : Vector3.one;
// Chunks
for (var j = 0; j < layer.data.chunks.Length; ++j)
{
var layerTiles = new Tile[gids[i][j].Length];
for (var k = 0; k < layerTiles.Length; ++k)
{
layerTiles[k] = tiles[gids[i][j][k] & 0x1ffffff]; // 3 MSB are for flipping
}
var size = new Vector3Int(layer.data.chunks[j].width, layer.data.chunks[j].height, 1);
var bounds = new BoundsInt(
new Vector3Int(
layer.width - layer.data.chunks[j].width + layer.data.chunks[j].x,
layer.height - layer.data.chunks[j].height - layer.data.chunks[j].y,
0
),
size);
tilemap.SetTilesBlock(bounds, layerTiles);
// Flipped tiles
for (var k = 0; k < gids[i][j].Length; ++k)
{
var diagonal = (gids[i][j][k] >> 29) & 1;
var vertical = (gids[i][j][k] >> 30) & 1;
var horizontal = (gids[i][j][k] >> 31) & 1;
var flips = new Vector4(diagonal, vertical, horizontal, 0);
if (flips.sqrMagnitude > 0f)
{
var position = new Vector3Int(
layer.width - layer.data.chunks[j].width + k % layer.data.chunks[j].width,
layer.height - layer.data.chunks[j].height + k / layer.data.chunks[j].width,
0
);
var transform = Matrix4x4.TRS(
Vector3.zero,
Quaternion.AngleAxis(diagonal * 180, new Vector3(1, 1, 0)),
Vector3.one - (diagonal == 1 ? new Vector3(flips.y, flips.z, flips.w) : new Vector3(flips.z, flips.y, flips.w)) * 2
);
tilemap.SetTransformMatrix(position, transform);
}
}
}
renderer.sortOrder = layout == GridLayout.CellLayout.Hexagon ? TilemapRenderer.SortOrder.BottomLeft : TilemapRenderer.SortOrder.TopLeft;
renderer.sortingOrder = i;
// Object layer
}
else
{
var objects = layer.objects; //layer.Elements("object").ToArray();
foreach (var @object in objects)
{
var tile = tiles[@object.gid & 0x1fffffff];
string icon = null;
GameObject gameObject; // Doubles as prefab when object has type
// Default instantiation when object has no set type
if (string.IsNullOrEmpty(@object.type))
{
gameObject = new GameObject($"{@object.name} {@object.id}".Trim());
icon = "sv_label_0";
// Warn instantiation when object has type but no prefab was found
}
else if (null == (gameObject = PrefabHelper.Load(@object.type, context)))
{
var gameObjectName = string.IsNullOrEmpty(@object.name) ? @object.type : @object.name;
gameObject = new GameObject($"{gameObjectName} {@object.id}".Trim());
icon = "sv_label_6";
// Prefab instantiation based on object type
}
else
{
gameObject = PrefabUtility.InstantiatePrefab(gameObject) as GameObject;
gameObject.name = $"{@object.name} {@object.id}".Trim();
foreach (var component in gameObject.GetComponentsInChildren <MonoBehaviour>())
{
ApplyProperties(@object.properties, component);
}
}
gameObject.transform.parent = layerObject.transform;
// Object sprite
var sprite = tile?.sprite;
if (sprite)
{
var diagonal = ((@object.gid >> 29) & 1) == 1 ? true : false;
var vertical = ((@object.gid >> 30) & 1) == 1 ? true : false;
var horizontal = ((@object.gid >> 31) & 1) == 1 ? true : false;
gameObject.transform.localRotation *= Quaternion.Euler(0f, 0f, [email protected]);
gameObject.transform.localRotation *= Quaternion.Euler(vertical ? 180f : 0f, horizontal ? 180f : 0f, 0f);
gameObject.transform.localPosition = new Vector3(@object.x / tmx.tilewidth, [email protected] / tmx.tileheight + tmx.height, 0);
gameObject.transform.localPosition += horizontal ? -gameObject.transform.right * @object.width / tmx.tilewidth : Vector3.zero;
gameObject.transform.localPosition += vertical ? -gameObject.transform.up * @object.height / tmx.tileheight : Vector3.zero;
var renderer = new GameObject("Renderer").AddComponent <SpriteRenderer>();
renderer.transform.SetParent(gameObject.transform, worldPositionStays: false);
renderer.sprite = sprite;
renderer.sortingOrder = i;
renderer.spriteSortPoint = SpriteSortPoint.Pivot;
renderer.drawMode = SpriteDrawMode.Sliced; // HACK: Makes renderer.size work
renderer.size = new Vector2(@object.width, @object.height) / tmx.tilewidth;
renderer.color = new Color(1f, 1f, 1f, layer.opacity);
renderer.transform.localPosition = new Vector3(@object.width / tmx.tilewidth / 2f, @object.height / tmx.tileheight / 2f);
}
else
{
gameObject.transform.localPosition =
new Vector3(@object.x / tmx.tileheight, [email protected] / tmx.tileheight + tmx.height - @object.height / tmx.tileheight, 0);
}
// Icon
if (icon != null)
{
InternalEditorGUIHelper.SetIconForObject(
gameObject,
EditorGUIUtility.IconContent(icon).image
);
}
}
}
}
collider.generationType = CompositeCollider2D.GenerationType.Synchronous;
}
///<summary>
///Load prefab based on object or tile type, if any, or create a GameObject otherwise.
///</summary>
static GameObject CreateObject(
AssetImportContext context,
TMX.Layer.Object @object,
Tile tile
)
{
var tileName = tile?.prefab ? tile.prefab.name : string.Empty;
var name = $"{@object.name ?? @object.type ?? tileName}";
name = $"{name} {@object.id}".Trim();
GameObject gameObject = null;
var properties = Property.Merge(@object.properties, tile?.properties);
var icon = string.Empty;
if (!string.IsNullOrEmpty(@object.type))
{
// Instantiate prefab based on object type.
var prefab = PrefabHelper.Load(@object.type, context);
if (prefab)
{
gameObject = PrefabUtility.InstantiatePrefab(prefab) as GameObject;
}
}
else if (tile?.prefab)
{
// Instantiate GameObject based on tile type.
gameObject = PrefabUtility.InstantiatePrefab(tile.prefab) as GameObject;
}
else
{
// Default instantiation when object and tile have no set type
gameObject = new GameObject(name);
icon = "sv_label_0";
}
if (gameObject != null)
{
// Apply properties to all behaviours.
gameObject.name = name;
var components = gameObject.GetComponentsInChildren <MonoBehaviour>();
foreach (var component in components)
{
Property.Apply(properties, component);
}
}
else
{
// Warn on instantiation when object has type but no prefab was found.
gameObject = new GameObject(name);
icon = "sv_label_6";
}
// Apply icon to GameObject, if any.
if (!string.IsNullOrEmpty(icon))
{
InternalEditorGUIHelper.SetIconForObject(
gameObject,
EditorGUIUtility.IconContent(icon).image
);
}
return(gameObject);
}