Fix being hit not causing velocity to reset

src/fighter/state/hitstun.rs

@@ -11,8 +11,7 @@ use crate::{
             land::LandingType,
             wait::WaitState,
         },
-    },
-    math::int::FGi32,
+    }, math::{int::FGi32, vec::FGVec2},
 };
 
 #[derive(Clone, Debug, Hash)]
@@ -103,6 +102,7 @@ impl FighterStateImpl for HitstunState {
             HitstopStateKind::Airborne => AnimKind::FlinchAir,
         };
         state_context.play_animation(animation, false);
+        state_context.velocity.0 = FGVec2::ZERO;
     }
 
     fn on_exit(&mut self, _state_context: &mut ExitContext) {}