1 files changed, 139 insertions, 0 deletions
diff --git a/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tiled/TiledMap.cs b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tiled/TiledMap.cs
new file mode 100644
index 0000000..b3486bd
--- /dev/null
+++ b/Plugins/MonoGame.Extended/source/MonoGame.Extended.Tiled/TiledMap.cs
@@ -0,0 +1,139 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Microsoft.Xna.Framework;
+
+namespace MonoGame.Extended.Tiled
+{
+    public sealed class TiledMap
+    {
+        private readonly List<TiledMapImageLayer> _imageLayers = new List<TiledMapImageLayer>();
+        private readonly List<TiledMapLayer> _layers = new List<TiledMapLayer>();
+        private readonly Dictionary<string, TiledMapLayer> _layersByName = new Dictionary<string, TiledMapLayer>();
+        private readonly List<TiledMapObjectLayer> _objectLayers = new List<TiledMapObjectLayer>();
+        private readonly List<TiledMapTileLayer> _tileLayers = new List<TiledMapTileLayer>();
+        private readonly List<TiledMapTileset> _tilesets = new List<TiledMapTileset>();
+		private readonly List<Tuple<TiledMapTileset, int>> _firstGlobalIdentifiers = new List<Tuple<TiledMapTileset, int>>();
+
+        public string Name { get; }
+        public string Type { get; }
+        public int Width { get; }
+        public int Height { get; }
+        public int TileWidth { get; }
+        public int TileHeight { get; }
+        public TiledMapTileDrawOrder RenderOrder { get; }
+        public TiledMapOrientation Orientation { get; }
+        public TiledMapProperties Properties { get; }
+        public ReadOnlyCollection<TiledMapTileset> Tilesets { get; }
+        public ReadOnlyCollection<TiledMapLayer> Layers { get; }
+        public ReadOnlyCollection<TiledMapImageLayer> ImageLayers { get; }
+        public ReadOnlyCollection<TiledMapTileLayer> TileLayers { get; }
+        public ReadOnlyCollection<TiledMapObjectLayer> ObjectLayers { get; }
+
+        public Color? BackgroundColor { get; set; }
+        public int WidthInPixels => Width * TileWidth;
+        public int HeightInPixels => Height * TileHeight;
+
+        private TiledMap()
+        {
+            Layers = new ReadOnlyCollection<TiledMapLayer>(_layers);
+            ImageLayers = new ReadOnlyCollection<TiledMapImageLayer>(_imageLayers);
+            TileLayers = new ReadOnlyCollection<TiledMapTileLayer>(_tileLayers);
+            ObjectLayers = new ReadOnlyCollection<TiledMapObjectLayer>(_objectLayers);
+            Tilesets = new ReadOnlyCollection<TiledMapTileset>(_tilesets);
+            Properties = new TiledMapProperties();
+        }
+
+        public TiledMap(string name, string type, int width, int height, int tileWidth, int tileHeight, TiledMapTileDrawOrder renderOrder, TiledMapOrientation orientation, Color? backgroundColor = null)
+            : this()
+        {
+            Name = name;
+            Type = type;
+            Width = width;
+            Height = height;
+            TileWidth = tileWidth;
+            TileHeight = tileHeight;
+            RenderOrder = renderOrder;
+            Orientation = orientation;
+            BackgroundColor = backgroundColor;
+        }
+
+        public void AddTileset(TiledMapTileset tileset, int firstGlobalIdentifier)
+        {
+            _tilesets.Add(tileset);
+			_firstGlobalIdentifiers.Add(new Tuple<TiledMapTileset, int>(tileset, firstGlobalIdentifier));
+        }
+
+		public void AddLayer(TiledMapLayer layer)
+			=> AddLayer(layer, true);
+
+		private void AddLayer(TiledMapLayer layer, bool root)
+        {
+			if (root) _layers.Add(layer);
+			
+			if (_layersByName.ContainsKey(layer.Name))
+				throw new ArgumentException($"The TiledMap '{Name}' contains two or more layers named '{layer.Name}'. Please ensure all layers have unique names.");
+
+			_layersByName.Add(layer.Name, layer);
+
+			switch(layer)
+			{
+				case TiledMapImageLayer imageLayer:
+					_imageLayers.Add(imageLayer);
+					break;
+				case TiledMapTileLayer tileLayer:
+					_tileLayers.Add(tileLayer);
+					break;
+				case TiledMapObjectLayer objectLayer:
+					_objectLayers.Add(objectLayer);
+					break;
+				case TiledMapGroupLayer groupLayer:
+					foreach (var subLayer in groupLayer.Layers)
+						AddLayer(subLayer, false);
+					break;
+			}
+        }
+
+        public TiledMapLayer GetLayer(string layerName)
+        {
+            TiledMapLayer layer;
+            _layersByName.TryGetValue(layerName, out layer);
+            return layer;
+        }
+
+        public T GetLayer<T>(string layerName)
+            where T : TiledMapLayer
+        {
+            return GetLayer(layerName) as T;
+        }
+
+        public TiledMapTileset GetTilesetByTileGlobalIdentifier(int tileIdentifier)
+        {
+			foreach (var tileset in _firstGlobalIdentifiers)
+			{
+			    if (tileIdentifier >= tileset.Item2 && tileIdentifier < tileset.Item2 + tileset.Item1.TileCount)
+			        return tileset.Item1;
+			}
+
+            return null;
+        }
+
+		public int GetTilesetFirstGlobalIdentifier(TiledMapTileset tileset)
+		{
+			return _firstGlobalIdentifiers.FirstOrDefault(t => t.Item1 == tileset).Item2;
+		}
+
+		private static int CountLayers(TiledMapLayer layer)
+		{
+			var value = 0;
+			if (layer is TiledMapGroupLayer groupLayer)
+				foreach (var subLayer in groupLayer.Layers)
+					value += CountLayers(subLayer);
+			else
+				value = 1;
+
+			return value;
+		}
+    }
+}