diff --git a/src/newtypes.rs b/src/newtypes.rs
index 8b12c6b..19e2e59 100644
--- a/src/newtypes.rs
+++ b/src/newtypes.rs
@@ -1,3 +1,4 @@
+mod common;
 pub mod aabb;
 pub mod model;
 pub mod integer;
diff --git a/src/newtypes/common.rs b/src/newtypes/common.rs
new file mode 100644
index 0000000..88ffac7
--- /dev/null
+++ b/src/newtypes/common.rs
@@ -0,0 +1,22 @@
+#[binrw::binrw]
+#[brw(little,repr=u8)]
+pub enum Boolio{
+	True,
+	False
+}
+impl Into<bool> for Boolio{
+	fn into(self)->bool{
+		match self{
+			Boolio::True=>true,
+			Boolio::False=>false,
+		}
+	}
+}
+impl From<bool> for Boolio{
+	fn from(value:bool)->Self{
+		match value{
+			true=>Boolio::True,
+			false=>Boolio::False,
+		}
+	}
+}