make footsteps player only play if on ground

scripts/audio/footsteps_player.gd

@@ -1,7 +1,10 @@
+class_name FootstepsPlayer
 extends AudioStreamPlayer3D
 
 @export var _footsteps: AudioStream
 
+var can_play: bool = true
+
 @onready var _polyphonic := get_stream_playback() as AudioStreamPlaybackPolyphonic
 
 
@@ -11,4 +14,5 @@ func _ready() -> void:
 
 
 func play_footstep() -> void:
-	_polyphonic.play_stream(_footsteps)
+	if can_play:
+		_polyphonic.play_stream(_footsteps)

scripts/gameplay/player/player_animator.gd

@@ -6,6 +6,7 @@ extends AnimationTree
 @export var _bone_flipper: BoneFlipper
 @export var _sfx_audio_player: AudioStreamPlayer3D
 @export var _hurt_particles: GPUParticles3D
+@export var _footsteps_player: FootstepsPlayer
 
 @export_group("Audio")
 @export var _hurt_sound: AudioStream
@@ -32,6 +33,7 @@ func _ready() -> void:
 
 
 func _process(_delta: float) -> void:
+	_footsteps_player.can_play = _player.is_on_floor()
 	_bone_flipper.flip = _is_left()
 	var has_input_prev := _has_input