public static Tileset Load(AssetImportContext context, TSX tsx)
{
// Image collection tilesets can have gaps in their IDs; use the highest ID instead.
var tilecount = Mathf.Max(tsx.tilecount, tsx.tiles.LastOrDefault().id + 1);
// Texture
Texture2D texture = null;
var columns = 0;
var rows = 0;
if (tsx.image.source == null)
{
// Image collection tilesets don't have images or column counts; use a single row.
columns = tilecount;
rows = 1;
}
else
{
texture = LoadTexture(tsx.image.source, tsx.image.trans, context);
// Column count might not exist, so just compute it instead.
columns = (texture.width - tsx.margin) / (tsx.tilewidth + tsx.spacing);
rows = (texture.height - tsx.margin) / (tsx.tileheight + tsx.spacing);
// Tile count depends only on column and row count.
tilecount = columns * rows;
}
// Single-image tilesets all use the same texture.
var tiles = new (GameObject prefab, Texture2D texture, TSX.Tile.Object[] objects, TSX.Tile.Frame[] frames)[tilecount];
///<summary>
///Load embedded or external tileset.
///</summary>
static Tileset ParseTileset(AssetImportContext context, TSX tsx)
{
// Load embedded tileset.
if (tsx.source == null)
{
return(TSXImporter.Load(context, tsx));
}
// Load external tileset, respecting relative paths.
var source = PathHelper.AssetPath(
Path.GetDirectoryName(context.assetPath) +
Path.DirectorySeparatorChar +
tsx.source
);
context.DependsOnSourceAsset(source);
return(AssetDatabase.LoadAssetAtPath <Tileset>(source));
}
public TSX(XElement element, string assetPath = "")
{
// Attributes
firstgid = (int? )element.Attribute("firstgid") ?? 0;
source = (string)element.Attribute("source");
if (!string.IsNullOrEmpty(source)) // External tileset
{
var tsx = new TSX(XDocument.Load(assetPath + source).Element("tileset"));
name = tsx.name;
tilewidth = tsx.tilewidth;
tileheight = tsx.tileheight;
spacing = tsx.spacing;
margin = tsx.margin;
tilecount = tsx.tilecount;
columns = tsx.columns;
tileoffset = tsx.tileoffset;
image = tsx.image;
tiles = tsx.tiles;
return;
}
name = (string)element.Attribute("name");
tilewidth = (int )element.Attribute("tilewidth");
tileheight = (int )element.Attribute("tileheight");
spacing = (int? )element.Attribute("spacing") ?? 0;
margin = (int? )element.Attribute("margin") ?? 0;
tilecount = (int? )element.Attribute("tilecount") ?? 0;
columns = (int? )element.Attribute("columns") ?? 0;
// Elements
tileoffset = new Tileoffset(element.Element("tileoffset"));
image = new Image(element.Element("image"));
tiles = element
.Elements("tile")
.Select(t => new Tile(t))
.OrderBy(t => t.id)
.ToArray();
}