add death sound and refactor jump sound

scripts/killzone.gd

@@ -1,9 +1,11 @@
 extends Area2D
 
 @onready var timer: Timer = $Timer
+@onready var death: AudioStreamPlayer2D = $Death
 
 func _on_body_entered(player_body: Node2D) -> void:
 	print("You died.")
+	death.play()
 	Engine.time_scale = 0.5
 	player_body.get_node(NodeTypes.COLLISION_SHAPE_2D).queue_free()
 	var player_character_body = player_body as CharacterBody2D 

scripts/player.gd

@@ -5,7 +5,7 @@ extends CharacterBody2D
 @export var jump_velocity = -400.0
 
 @onready var animated_sprite: AnimatedSprite2D = $AnimatedSprite2D
-@onready var animation_player: AnimationPlayer = $AnimationPlayer
+@onready var jump_sound: AudioStreamPlayer2D = $JumpSound
 
 func _physics_process(delta: float) -> void:
 	# Add the gravity.
@@ -14,7 +14,7 @@ func _physics_process(delta: float) -> void:
 
 	# Handle jump.
 	if Input.is_action_just_pressed("jump") and is_on_floor():
-		animation_player.play("jump")
+		jump_sound.play()
 		velocity.y = jump_velocity
 
 	# Get the input direction and handle the movement/deceleration.