extends Camera3D

@export var ray_length := 1000.0
@export var target_path : NodePath
@export var height := 3.5
@onready var target_node : MeshInstance3D = get_node(target_path)
var projected_point := Vector3.ZERO

func _input(event):
	if event is InputEventMouseMotion:
		var from = project_ray_origin(event.position)
		var to = from + project_ray_normal(event.position) * ray_length
		var result = get_world_3d().direct_space_state.intersect_ray(
			PhysicsRayQueryParameters3D.create(from, to)
		)
		if result and result.get('position'):
			projected_point = result.get('position')

func _physics_process(_delta):
	if projected_point:
		target_node.global_position = (
			projected_point + projected_point.direction_to(global_position).normalized() * height
		)