From ff46db9d90d819c5a610b8dca1f238b6b31a3942 Mon Sep 17 00:00:00 2001
From: gered <gered@blarg.ca>
Date: Wed, 28 Aug 2013 23:39:49 -0400
Subject: [PATCH] add TileMeshCollectionLoader

---
 .../Blarg.GameFramework.csproj                |   1 +
 .../Meshes/Json/TileMeshCollectionLoader.cs   | 138 ++++++++++++++++++
 2 files changed, 139 insertions(+)
 create mode 100644 Blarg.GameFramework/TileMap/Meshes/Json/TileMeshCollectionLoader.cs

diff --git a/Blarg.GameFramework/Blarg.GameFramework.csproj b/Blarg.GameFramework/Blarg.GameFramework.csproj
index 44d4302..8ef2312 100644
--- a/Blarg.GameFramework/Blarg.GameFramework.csproj
+++ b/Blarg.GameFramework/Blarg.GameFramework.csproj
@@ -217,6 +217,7 @@
     <Compile Include="TileMap\Meshes\Json\JsonTileDefinition.cs" />
     <Compile Include="TileMap\Meshes\Json\JsonTileMeshCollection.cs" />
     <Compile Include="TileMap\Meshes\Json\JsonTileSubModel.cs" />
+    <Compile Include="TileMap\Meshes\Json\TileMeshCollectionLoader.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
   <ItemGroup>
diff --git a/Blarg.GameFramework/TileMap/Meshes/Json/TileMeshCollectionLoader.cs b/Blarg.GameFramework/TileMap/Meshes/Json/TileMeshCollectionLoader.cs
new file mode 100644
index 0000000..490ce72
--- /dev/null
+++ b/Blarg.GameFramework/TileMap/Meshes/Json/TileMeshCollectionLoader.cs
@@ -0,0 +1,138 @@
+using System;
+using System.IO;
+using Newtonsoft.Json;
+using Blarg.GameFramework.Graphics.Atlas;
+using Blarg.GameFramework.Graphics;
+using Blarg.GameFramework.Support;
+
+namespace Blarg.GameFramework.TileMap.Meshes.Json
+{
+	public static class TileMeshCollectionLoader
+	{
+		public static TileMeshCollection Load(string file, TextureAtlas atlas)
+		{
+			var stream = Framework.FileSystem.Open(file);
+			string path = null;
+			if (file.Contains("/"))
+				path = file.Substring(0, file.LastIndexOf('/') + 1);
+
+			return Load(stream, atlas, path);
+		}
+
+		public static TileMeshCollection Load(Stream file, TextureAtlas atlas, string filePath = null)
+		{
+			if (file == null)
+				throw new ArgumentNullException("file");
+			if (atlas == null)
+				throw new ArgumentNullException("atlas");
+
+			var reader = new StreamReader(file);
+			var definition = JsonConvert.DeserializeObject<JsonTileMeshCollection>(reader.ReadToEnd());
+
+			var collection = new TileMeshCollection(atlas);
+
+			if (definition.Tiles == null)
+				throw new ConfigFileException("Missing 'Tiles' section.");
+
+			// TODO: material mapping section
+
+			foreach (var tileDef in definition.Tiles)
+			{
+				if (!tileDef.Cube && tileDef.Model == null && tileDef.Models == null)
+					throw new ConfigFileException("One of Cube, Model, or Models must be specified in a tile definition.");
+				if (tileDef.CollisionModel != null && tileDef.CollisionShape != null)
+					throw new ConfigFileException("CollisionModel and CollisionShape cannot both be set.");
+
+				TextureRegion? texture = null;
+				TextureRegion? topTexture = null;
+				TextureRegion? bottomTexture = null;
+				TextureRegion? frontTexture = null;
+				TextureRegion? backTexture = null;
+				TextureRegion? leftTexture = null;
+				TextureRegion? rightTexture = null;
+				byte faces = 0;
+				byte opaqueSides = 0;
+				Color color = Color.White;
+
+				if (tileDef.OpaqueSides != null)
+				{
+					if (tileDef.OpaqueSides.Contains("ALL"))
+						opaqueSides = TileMesh.SIDE_ALL;
+					else
+					{
+						if (tileDef.OpaqueSides.Contains("TOP"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_TOP);
+						if (tileDef.OpaqueSides.Contains("BOTTOM"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_BOTTOM);
+						if (tileDef.OpaqueSides.Contains("FRONT"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_FRONT);
+						if (tileDef.OpaqueSides.Contains("BACK"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_BACK);
+						if (tileDef.OpaqueSides.Contains("LEFT"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_LEFT);
+						if (tileDef.OpaqueSides.Contains("RIGHT"))
+							opaqueSides = opaqueSides.SetBit(TileMesh.SIDE_RIGHT);
+					}
+				}
+
+				if (tileDef.Color != null)
+					color = tileDef.Color.Value;
+
+				if (tileDef.Cube)
+				{
+					if (tileDef.Textures != null)
+					{
+						if (tileDef.Textures.Top.HasValue)
+							topTexture = atlas.GetTile(tileDef.Textures.Top.Value);
+						if (tileDef.Textures.Bottom.HasValue)
+							bottomTexture = atlas.GetTile(tileDef.Textures.Bottom.Value);
+						if (tileDef.Textures.Front.HasValue)
+							frontTexture = atlas.GetTile(tileDef.Textures.Front.Value);
+						if (tileDef.Textures.Back.HasValue)
+							backTexture = atlas.GetTile(tileDef.Textures.Back.Value);
+						if (tileDef.Textures.Left.HasValue)
+							leftTexture = atlas.GetTile(tileDef.Textures.Left.Value);
+						if (tileDef.Textures.Right.HasValue)
+							rightTexture = atlas.GetTile(tileDef.Textures.Right.Value);
+					}
+					else if (tileDef.Texture.HasValue)
+					{
+						texture = atlas.GetTile(tileDef.Texture.Value);
+						if (tileDef.Faces != null)
+						{
+							if (tileDef.Faces.Contains("ALL"))
+								faces = TileMesh.SIDE_ALL;
+							else
+							{
+								if (tileDef.Faces.Contains("TOP"))
+									faces = faces.SetBit(TileMesh.SIDE_TOP);
+								if (tileDef.Faces.Contains("BOTTOM"))
+									faces = faces.SetBit(TileMesh.SIDE_BOTTOM);
+								if (tileDef.Faces.Contains("FRONT"))
+									faces = faces.SetBit(TileMesh.SIDE_FRONT);
+								if (tileDef.Faces.Contains("BACK"))
+									faces = faces.SetBit(TileMesh.SIDE_BACK);
+								if (tileDef.Faces.Contains("LEFT"))
+									faces = faces.SetBit(TileMesh.SIDE_LEFT);
+								if (tileDef.Faces.Contains("RIGHT"))
+									faces = faces.SetBit(TileMesh.SIDE_RIGHT);
+							}
+						}
+					}
+					else
+						throw new ConfigFileException("No cube texture specified.");
+
+					if (texture != null)
+						collection.AddCube(texture.Value, faces, opaqueSides, tileDef.Light, tileDef.Alpha, tileDef.Translucency, color);
+					else
+						collection.AddCube(topTexture, bottomTexture, frontTexture, backTexture, leftTexture, rightTexture, opaqueSides, tileDef.Light, tileDef.Alpha, tileDef.Translucency, color);
+				}
+				else
+					throw new NotImplementedException("Only cube tile definitions are implemented currently.");
+			}
+
+			return collection;
+		}
+	}
+}
+