extends Actor

var direction = Vector2.ZERO

var hookOut = false
var hookPosition = Vector2.ZERO
var ropeLength = Vector2.ZERO
var ropeAngleVelocity = 0
var ropeAngle = 0
var ropeEndPoint = Vector2.ZERO

signal animate


func _physics_process(delta: float) -> void:
	# check for short jump
	var is_jump_interrupted = Input.is_action_just_released("ButtonA") and velocity.y < 0
	# get where the player wants to go.
	direction = get_direction()
	operate_hook_shot()
	if hookOut:
		hook_swing()
		velocity.y = gravity
	velocity = calculate_platforming_velocity(velocity, direction, speed, is_jump_interrupted)
	velocity = move_and_slide(velocity, FLOOR_NORMAL)
	animate(velocity)




func get_direction() -> Vector2:
	return Vector2(
	Input.get_action_strength("Right") - Input.get_action_strength("Left"),
	-Input.get_action_strength("ButtonA") if can_jump() and Input.is_action_just_pressed("ButtonA") else 0.0
	)


func can_jump() -> bool:
	# TODO checks if player can jump based on being on the floor, having coyote time or swinging
	return is_on_floor()


func calculate_platforming_velocity(
		linear_velocity: Vector2,
		direction: Vector2,
		speed: Vector2,
		is_jump_interrupted: bool
	) -> Vector2:
	# Horizontal Velocity
	var new_velocity: = linear_velocity
	new_velocity.x = speed.x * direction.x
	# Vertical Velocity
	if direction.y != 0.0:
		new_velocity.y = speed.y * direction.y
	if is_jump_interrupted:
		new_velocity.y = 0.0
	return new_velocity


func animate(velocity):
	emit_signal("animate", velocity)


func operate_hook_shot():
	if Input.is_action_just_released("ButtonB"):
		hookOut = false
		velocity.y -= 150
	elif Input.is_action_just_pressed("ButtonB"):
		hookPosition = get_global_mouse_position()
		ropeLength = get_position().distance_to(hookPosition)
		ropeAngleVelocity = 0
		ropeAngle = get_position().angle_to_point(hookPosition)
		hookOut = true


func hook_swing():
	var playerDelta = hookPosition - get_position()
	var currentDistance = playerDelta.length()
	if currentDistance > ropeLength:
		var correctionAmount = currentDistance - ropeLength
		var hookDir = playerDelta / currentDistance
		var correctionVector = (hookDir * correctionAmount)
		print(correctionVector)
		move_and_collide(correctionVector)
		velocity += (correctionVector * 0.1) / get_physics_process_delta_time()


#func hook_swing():
#	var left_pressed = Input.get_action_strength("Left")
#	var right_pressed = Input.get_action_strength("Right")
#	var _ropeAcceleration = sin(ropeAngle - deg2rad(90)) * -0.08 / ropeLength
#
#	_ropeAcceleration -= (right_pressed - left_pressed) * 0.1 / ropeLength
#	ropeAngleVelocity += _ropeAcceleration
#	ropeAngle += ropeAngleVelocity
#	ropeAngleVelocity *= 0.99
#	ropeEndPoint = hookPosition + (Vector2(cos(ropeAngle),sin(ropeAngle)) * ropeLength)
#
#	var swingMotion = (ropeEndPoint - get_position())
##	swingMotion.x = clamp(swingMotion.x, -5,5)
##	swingMotion.y = clamp(swingMotion.y, -5,5)
##	if swingMotion.x < 0.2 and swingMotion.x > -0.2:
##		swingMotion.x = 0
##		ropeAngleVelocity = 0
##		ropeAngle = get_position().angle_to_point(hookPosition)
##	print(swingMotion.x)
#	var colision = move_and_collide(swingMotion)
#	if colision:
#		ropeAngle = get_position().angle_to_point(hookPosition)
#		ropeAngleVelocity *= -0.5
#	velocity = swingMotion / get_physics_process_delta_time()