[TASK] Initial commit with basic product setup

Assets/Mapbox SDK/Mapbox/Unity/Map/TileProviders/RangeTileProvider.cs

@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using Mapbox.Map;
+
+namespace Mapbox.Unity.Map.TileProviders
+{
+	public class RangeTileProvider : AbstractTileProvider
+	{
+		private RangeTileProviderOptions _rangeTileProviderOptions;
+		private bool _initialized = false;
+
+		//private List<UnwrappedTileId> _toRemove;
+		//private HashSet<UnwrappedTileId> _tilesToRequest;
+
+		public override void OnInitialized()
+		{
+			if (Options != null)
+			{
+				_rangeTileProviderOptions = (RangeTileProviderOptions)Options;
+			}
+			else
+			{
+				_rangeTileProviderOptions = new RangeTileProviderOptions();
+			}
+
+			_initialized = true;
+			//_toRemove = new List<UnwrappedTileId>((_rangeTileProviderOptions.east + _rangeTileProviderOptions.west) * (_rangeTileProviderOptions.north + _rangeTileProviderOptions.south));
+			_currentExtent.activeTiles = new HashSet<UnwrappedTileId>();
+		}
+
+		public override void UpdateTileExtent()
+		{
+			if (!_initialized || Options == null)
+			{
+				return;
+			}
+
+			_currentExtent.activeTiles.Clear();
+			//_toRemove.Clear();
+			var centerTile = TileCover.CoordinateToTileId(_map.CenterLatitudeLongitude, _map.AbsoluteZoom);
+			_currentExtent.activeTiles.Add(new UnwrappedTileId(_map.AbsoluteZoom, centerTile.X, centerTile.Y));
+
+			for (int x = (centerTile.X - _rangeTileProviderOptions.west); x <= (centerTile.X + _rangeTileProviderOptions.east); x++)
+			{
+				for (int y = (centerTile.Y - _rangeTileProviderOptions.north); y <= (centerTile.Y + _rangeTileProviderOptions.south); y++)
+				{
+					_currentExtent.activeTiles.Add(new UnwrappedTileId(_map.AbsoluteZoom, x, y));
+				}
+			}
+
+			OnExtentChanged();
+		}
+		public override bool Cleanup(UnwrappedTileId tile)
+		{
+			return (!_currentExtent.activeTiles.Contains(tile));
+		}
+
+	}
+}