Add death effect and sound to PlayerDeathComponent; reset player state on death

scripts/components/player_death.gd

@@ -1,5 +1,8 @@
 class_name PlayerDeathComponent
-extends Node
+extends Node2D
+
+@export var death_sfx: AudioStreamPlayer2D
+@export var death_effect: PackedScene
 
 @onready var gm: GM = $"/root/GameManager"
 
@@ -9,6 +12,17 @@ func reset_scene() -> void:
 
 
 func _on_health_component_on_death() -> void:
-	# todo: play audio on death
-	gm.remove_lives(1)
+	if death_sfx:
+		death_sfx.play()
+	if death_effect:
+		var effect: Node2D = death_effect.instantiate()
+		get_parent().add_child(effect)
+		effect.global_position = global_position
+		effect.scale = Vector2(1.5, 1.5)
+
+	if gm.get_lives() == 1:
+		gm.reset_player_state()
+	else:
+		gm.remove_lives(1)
+
 	call_deferred("reset_scene")