added ability to reset high score

hitting delete key while at main menu or game over screen will reset the high score and save to file.

main.gd

@@ -16,6 +16,9 @@ func _ready() -> void:
 	load_game()
 	Relay.game_over.connect(on_game_over)
 	Relay.game_restart.connect(on_game_reset)
+	Relay.reset_high_score.connect(func():
+		high_score = 0
+		save_high_score(0))
 
 
 func _input(_event: InputEvent) -> void:

project.godot

@@ -45,6 +45,11 @@ fire={
 , Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":32,"key_label":0,"unicode":32,"echo":false,"script":null)
 ]
 }
+clear_high_score={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194312,"key_label":0,"unicode":0,"echo":false,"script":null)
+]
+}
 
 [physics]
 

scenes/core/relay.gd

@@ -2,6 +2,7 @@ extends Node
 
 signal current_score(score: int)
 signal gain_point
+signal reset_high_score
 
 signal ship_hit
 

scenes/core/ui.gd

@@ -11,6 +11,12 @@ func _ready() -> void:
 	Relay.game_over.connect(on_game_over)
 
 
+func _unhandled_input(event: InputEvent) -> void:
+	if not game_over.visible and not title_screen.visible: return
+	if event.is_action_pressed("clear_high_score"):
+		Relay.reset_high_score.emit()
+
+
 func on_score_updated(new_score: int) -> void:
 	point_counter.text = str(new_score)