[TASK] Initial commit with basic product setup

Assets/Mapbox SDK/Mapbox/Unity/MeshGeneration/Modifiers/MeshModifiers/SnapTerrainModifier.cs

@@ -0,0 +1,46 @@
+namespace Mapbox.Unity.MeshGeneration.Modifiers
+{
+	using UnityEngine;
+	using Mapbox.Unity.MeshGeneration.Data;
+
+	[CreateAssetMenu(menuName = "Mapbox/Modifiers/Snap Terrain Modifier")]
+	public class SnapTerrainModifier : MeshModifier
+	{
+		public override ModifierType Type { get { return ModifierType.Preprocess; } }
+
+		private double scaledX;
+		private double scaledY;
+		private int _counter;
+
+		public override void Run(VectorFeatureUnity feature, MeshData md, UnityTile tile = null)
+		{
+			scaledX = tile.Rect.Size.x * tile.TileScale;
+			scaledY = tile.Rect.Size.y * tile.TileScale;
+			_counter = md.Vertices.Count;
+			if (_counter > 0)
+			{
+				for (int i = 0; i < _counter; i++)
+				{
+					var h = tile.QueryHeightData(
+						(float)((md.Vertices[i].x + md.PositionInTile.x + scaledX / 2) / scaledX),
+						(float)((md.Vertices[i].z + md.PositionInTile.z + scaledY / 2) / scaledY));
+					md.Vertices[i] += new Vector3(0, h, 0);
+				}
+			}
+			else
+			{
+				foreach (var sub in feature.Points)
+				{
+					_counter = sub.Count;
+					for (int i = 0; i < _counter; i++)
+					{
+						var h = tile.QueryHeightData(
+							(float)((sub[i].x + md.PositionInTile.x + scaledX / 2) / scaledX), 
+							(float)((sub[i].z + md.PositionInTile.z + scaledY / 2) / scaledY));
+						sub[i] += new Vector3(0, h, 0);
+					}
+				}
+			}
+		}
+	}
+}