Add cactus renderer

Unlike Minecraft, however, our cactus has no bottom face. Who cares.

TrueCraft.Client/Rendering/Blocks/CactusRenderer.cs

@@ -0,0 +1,98 @@
+using System;
+using TrueCraft.API.Logic;
+using Microsoft.Xna.Framework.Graphics;
+using Microsoft.Xna.Framework;
+using TrueCraft.Core.Logic.Blocks;
+
+namespace TrueCraft.Client.Rendering.Blocks
+{
+    public class CactusRenderer : BlockRenderer
+    {
+        static CactusRenderer()
+        {
+            BlockRenderer.RegisterRenderer(CactusBlock.BlockID, new CactusRenderer());
+            for (int j = 0; j < Texture.Length; j++)
+                Texture[j] *= new Vector2(16f / 256f);
+            for (int j = 0; j < TopTexture.Length; j++)
+                TopTexture[j] *= new Vector2(16f / 256f);
+        }
+
+        private static Vector2 TextureMap = new Vector2(6, 4);
+        private static Vector2[] Texture =
+        {
+            TextureMap + Vector2.UnitX + Vector2.UnitY,
+            TextureMap + Vector2.UnitY,
+            TextureMap,
+            TextureMap + Vector2.UnitX
+        };
+        private static Vector2 TopTextureMap = new Vector2(6, 4);
+        private static Vector2[] TopTexture =
+        {
+            TopTextureMap + Vector2.UnitX + Vector2.UnitY,
+            TopTextureMap + Vector2.UnitY,
+            TopTextureMap,
+            TopTextureMap + Vector2.UnitX
+        };
+
+        public override VertexPositionNormalColorTexture[] Render(BlockDescriptor descriptor, Vector3 offset,
+            VisibleFaces faces, Tuple<int, int> textureMap, int indiciesOffset, out int[] indicies)
+        {
+            // This is similar to how wheat is rendered
+            indicies = new int[5 * 6];
+            var verticies = new VertexPositionNormalColorTexture[5 * 6];
+            int[] _indicies;
+            var center = new Vector3(-0.5f, -0.5f, -0.5f);
+            CubeFace side;
+            VertexPositionNormalColorTexture[] quad;
+            for (int _side = 0; _side < 4; _side++)
+            {
+                side = (CubeFace)_side;
+                quad = CreateQuad(side, center, Texture, 0, indiciesOffset, out _indicies, Color.White);
+                if (side == CubeFace.NegativeX || side == CubeFace.PositiveX)
+                {
+                    for (int i = 0; i < quad.Length; i++)
+                    {
+                        quad[i].Position.X *= 14f / 16f;
+                        quad[i].Position += offset;
+                    }
+                }
+                else
+                {
+                    for (int i = 0; i < quad.Length; i++)
+                    {
+                        quad[i].Position.Z *= 14f / 16f;
+                        quad[i].Position += offset;
+                    }
+                }
+                Array.Copy(quad, 0, verticies, _side * 4, 4);
+                Array.Copy(_indicies, 0, indicies, _side * 6, 6);
+            }
+            side = CubeFace.PositiveY;
+            quad = CreateQuad(side, center, TopTexture, 0, indiciesOffset, out _indicies, Color.White);
+            if (side == CubeFace.NegativeX || side == CubeFace.PositiveX)
+            {
+                for (int i = 0; i < quad.Length; i++)
+                {
+                    quad[i].Position.X *= 14f / 16f;
+                    quad[i].Position += offset;
+                }
+            }
+            else
+            {
+                for (int i = 0; i < quad.Length; i++)
+                {
+                    quad[i].Position.Z *= 14f / 16f;
+                    quad[i].Position += offset;
+                }
+            }
+            Array.Copy(quad, 0, verticies, (int)side * 4, 4);
+            Array.Copy(_indicies, 0, indicies, (int)side * 6, 6);
+            for (int i = 0; i < verticies.Length; i++)
+            {
+                verticies[i].Position.Y -= 1 / 16f;
+                verticies[i].Position -= center;
+            }
+            return verticies;
+        }
+    }
+}

TrueCraft.Client/Rendering/Blocks/WheatRenderer.cs

@@ -4,7 +4,7 @@ using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework;
 using TrueCraft.Core.Logic.Blocks;
 
-namespace TrueCraft.Client.Rendering
+namespace TrueCraft.Client.Rendering.Blocks
 {
     public class WheatRenderer : BlockRenderer
     {

TrueCraft.Client/TrueCraft.Client.csproj

@@ -134,6 +134,7 @@
     <Compile Include="Modules\PlayerControlModule.cs" />
     <Compile Include="Modules\DebugInfoModule.cs" />
     <Compile Include="Modules\HUDModule.cs" />
+    <Compile Include="Rendering\Blocks\CactusRenderer.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>