Add Direction enum

src/Types.h

@@ -21,6 +21,16 @@ namespace Feather
         };
     }
 
+    enum class Direction : uint8
+    {
+        DOWN,   // -Y
+        UP,     // +Y
+        NORTH,  // -Z
+        SOUTH,  // +Z
+        WEST,   // -X
+        EAST    // +X
+    };
+
     struct BlockPos
     {
         int32_t x, y, z;

src/protocol/protocol.hjson

@@ -38,6 +38,12 @@
             method: Position
         }
 
+        direction: {
+            type: Direction
+            size: 1
+            alias: varint
+        }
+
         uint64: {type: 'uint64_t', size: 8}
         int64: {type: 'int64_t', size: 8}