diff --git a/src/physics.rs b/src/physics.rs
index 07de7f8..74545fd 100644
--- a/src/physics.rs
+++ b/src/physics.rs
@@ -1896,6 +1896,7 @@ fn atomic_input_instruction(state:&mut PhysicsState,data:&PhysicsData,ins:TimedI
 				if b_refresh_walk_target{
 					state.apply_input_and_body(data);
 					state.cull_velocity(data,state.body.velocity);
+					//also check if accelerating away from surface
 				}
 }