Fix match state remaining mutable after and of match and implement initial work on aerials (#77)

Reviewed-on: #77
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/fighter/state/fall.rs

@@ -1,7 +1,7 @@
 use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
 use crate::fighter::animation::AnimKind;
 use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::{FighterState, air, jump};
+use crate::fighter::state::{FighterState, air, air_attack, jump};
 
 #[derive(Debug, Clone, Copy, Hash, Default)]
 pub struct FallState {
@@ -20,7 +20,7 @@ impl FighterStateImpl for FallState {
     const NAME: &'static str = "Fall";
     
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        jump::check_input_double_jump(state_context)
+        jump::check_input_double_jump(state_context).or_else(|| air_attack::check_interrupt(state_context, &self.airborne_state_common))
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {