add reset instruction + physics::Instruction is Clone

src/physics.rs

@@ -1,4 +1,4 @@
-#[derive(Debug)]
+#[derive(Clone,Debug)]
 pub enum Instruction{
 	ReplaceMouse(crate::mouse::MouseState,crate::mouse::MouseState),
 	SetNextMouse(crate::mouse::MouseState),
@@ -10,7 +10,13 @@ pub enum Instruction{
 	SetMoveForward(bool),
 	SetJump(bool),
 	SetZoom(bool),
+	/// Reset: fully replace the physics state.
+	/// This forgets all inputs and settings which need to be reapplied.
+	Reset,
+	/// Restart: Teleport to the start zone.
 	Restart,
+	/// Spawn: Teleport to a specific mode's spawn
+	/// Sets current mode & spawn
 	Spawn(crate::gameplay_modes::ModeId,crate::gameplay_modes::StageId),
 	Idle,
 		//Idle: there were no input events, but the simulation is safe to advance to this timestep