basic implementation of input remapping

objects/hud/set_keyboard_button.gd

@@ -0,0 +1,55 @@
+extends Button
+
+
+const BLINK_SPEED: int = 150
+
+
+export var action: String
+
+
+var listen := false
+
+
+func _init() -> void:
+	connect("pressed", self, "_on_pressed")
+
+
+func _ready() -> void:
+	_update_text()
+
+
+func _process(delta: float) -> void:
+	if listen:
+		if Time.get_ticks_msec() % (BLINK_SPEED * 2) < BLINK_SPEED:
+			modulate.a = 0.0
+		else:
+			modulate.a = 1.0
+
+
+func _update_text() -> void:
+	text = OS.get_scancode_string(Controls.get_key(action))
+	modulate.a = 1.0
+
+
+func _on_pressed() -> void:
+	if not listen:
+		listen = true
+		disabled = true
+		text = ""
+		get_tree().create_timer(2.0, true).connect("timeout", self, "_on_timeout")
+
+
+func _on_timeout() -> void:
+	listen = false
+	disabled = false
+	_update_text()
+
+
+func _gui_input(event: InputEvent) -> void:
+	if listen:
+		if event is InputEventKey and event.pressed:
+			Controls.set_key(action, event.physical_scancode)
+			listen = false
+			set_deferred("disabled", false)
+			_update_text()
+		accept_event()