extends KinematicBody

var animPlayer
var moveSpeed = 10
var targetPosition

var isWalking

func _ready():
	animPlayer = $AnimationPlayer
	pass

#func _process(delta):
#	# Called every frame. Delta is time since last frame.
#	# Update game logic here.
#	pass

func onEnterWalkState():
	animPlayer.play("walk")
	pass

func onExitWalkState():
	animPlayer.stop(true)
	pass

func walkUpdate(delta):
	pass

func walkPhysics(delta):
	var playerPosition = self.global_transform.origin
	if playerPosition >= (targetPosition-Vector3(1,0,1)) and playerPosition <= (targetPosition+Vector3(1,0,1)):
		isWalking = false
		onExitWalkState()
		pass

	var direction = (targetPosition - playerPosition).normalized()
	var velocity = direction*moveSpeed*delta
	velocity.y = 0
	move_and_collide(velocity)
	pass

func _physics_process(delta):
	if Input.is_action_just_pressed("left_click"):
		isWalking = true
		targetPosition = getTargetPositionByRayTrace()
		onEnterWalkState()

	if isWalking:
		walkPhysics(delta)
		pass
	pass

func getTargetPositionByRayTrace():
	var rayLength = 1000
	var mousePos = get_viewport().get_mouse_position()
	var camera = get_viewport().get_camera()
	var from = camera.project_ray_origin(mousePos)
	var to = from + camera.project_ray_normal(mousePos) * rayLength
	var space_state = get_world().direct_space_state
	var result = space_state.intersect_ray(from, to, [self])
	print("Result: ", result.position, result.collider)
	return result.position