1 files changed, 23 insertions, 0 deletions
diff --git a/src/Blocks/BlockObserver.h b/src/Blocks/BlockObserver.h
index 30c19ba2e..78a4c05b2 100644
--- a/src/Blocks/BlockObserver.h
+++ b/src/Blocks/BlockObserver.h
@@ -16,4 +16,27 @@ public:
 	{
 	}
 
+	inline static Vector3i GetObservingFaceOffset(NIBBLETYPE a_Meta)
+	{
+		return -GetSignalOutputOffset(a_Meta);
+	}
+
+	inline static Vector3i GetSignalOutputOffset(NIBBLETYPE a_Meta)
+	{
+		switch (a_Meta & 0x7)
+		{
+			case 0x00: return { 0, 1, 0 };
+			case 0x01: return { 0, -1, 0 };
+			case 0x02: return { 0, 0, 1 };
+			case 0x03: return { 0, 0, -1 };
+			case 0x04: return { 1, 0, 0 };
+			case 0x05: return { -1, 0, 0 };
+			default:
+			{
+				LOGWARNING("%s: Unknown metadata: %d", __FUNCTION__, a_Meta);
+				ASSERT(!"Unknown metadata while determining orientation of observer!");
+				return { 0, 0, 0 };
+			}
+		}
+	}
 };