extends RigidBody2D

var _picked: bool = false
var _last_mouse_pos := Vector2.ZERO


func _ready() -> void:
	input_pickable = true


func _input(any_input_event: InputEvent) -> void:
	var mouse_event := any_input_event as InputEventMouseButton
	if mouse_event and not mouse_event.pressed:
		_picked = false


func _input_event(_viewport: Node, any_input_event: InputEvent, _shape_idx: int) -> void:
	var mouse_event := any_input_event as InputEventMouseButton
	if mouse_event and mouse_event.pressed:
		_picked = true
		_last_mouse_pos = get_global_mouse_position()


func _physics_process(delta: float) -> void:
	if _picked:
		var mouse_pos := get_global_mouse_position()
		if freeze:
			global_position = mouse_pos
		else:
			linear_velocity = (mouse_pos - _last_mouse_pos) / delta
			_last_mouse_pos = mouse_pos