diff --git a/src/v1.rs b/src/v1.rs
index 762c0af..d839554 100644
--- a/src/v1.rs
+++ b/src/v1.rs
@@ -33,11 +33,48 @@ pub struct Vector3{
 	pub z:f32,
 }
 
+bitflags::bitflags!{
+	pub struct GameControls:u32{
+		const MoveForward=1<<0;
+		const MoveLeft=1<<1;
+		const MoveBack=1<<2;
+		const MoveRight=1<<3;
+		const MoveUp=1<<4;
+		const MoveDown=1<<5;
+		const LookUp=1<<6;
+		const LookLeft=1<<7;
+		const LookDown=1<<8;
+		const LookRight=1<<9;
+		const Jump=1<<10;
+		const Crouch=1<<11;
+		const Sprint=1<<12;
+		const Zoom=1<<13;
+		const Use=1<<14;
+		const Action1=1<<15;
+		const Action2=1<<16;
+	}
+}
+#[derive(Debug)]
+pub struct GameControlsError;
+impl std::fmt::Display for GameControlsError{
+	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
+		write!(f,"{self:?}")
+	}
+}
+impl std::error::Error for GameControlsError{}
+impl GameControls{
+	fn try_from_bits(bits:u32)->Result<Self,GameControlsError>{
+		Self::from_bits(bits).ok_or(GameControlsError)
+	}
+}
+
 // input
 #[binrw]
 #[brw(little)]
 pub struct InputEvent{
-	pub game_controls:u32,
+	#[br(try_map=GameControls::try_from_bits)]
+	#[bw(map=GameControls::bits)]
+	pub game_controls:GameControls,
 	pub mouse_pos:Vector2,
 }
 #[binrw]
@@ -49,10 +86,33 @@ pub struct TimedInputEvent{
 }
 
 // output
+bitflags::bitflags!{
+	pub struct TickInfo:u32{
+		const TickEnd=1<<0;
+		const Jump=1<<1;
+		const Strafe=1<<2;
+		const Touching=1<<3;
+	}
+}
+#[derive(Debug)]
+pub struct TickInfoError;
+impl std::fmt::Display for TickInfoError{
+	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
+		write!(f,"{self:?}")
+	}
+}
+impl std::error::Error for TickInfoError{}
+impl TickInfo{
+	fn try_from_bits(bits:u32)->Result<Self,TickInfoError>{
+		Self::from_bits(bits).ok_or(TickInfoError)
+	}
+}
 #[binrw]
 #[brw(little)]
 pub struct OutputEvent{
-	pub tick_info:u32,
+	#[br(try_map=TickInfo::try_from_bits)]
+	#[bw(map=TickInfo::bits)]
+	pub tick_info:TickInfo,
 	pub angles:Vector3,
 	pub position:Vector3,
 	pub velocity:Vector3,