added phase 1 of gameplay and ui buttons

Scripts/player_choice_box.gd

@@ -0,0 +1,12 @@
+extends HBoxContainer
+var start_pos: Vector2
+
+func _ready() -> void:
+	start_pos = self.position
+
+func _input(event: InputEvent) -> void:
+	if event.is_action_released("left_mouse_click"):
+		self.position = Vector2(1000.0,1000.0)
+
+func on_state_changed():
+	pass