How can I bounce/reflect a raycast?

Werds

I need a raycast that can be reflected when colliding with an obstacle. I know it can also be done with line2d, but preferably I would like it to be raycast The problem I'm having is with the RayCast and Vectors/Normals/Rotation.

thank you in advance

(sorry, i don't speak english)

extends RayCast2D

export var velocity = 1300
export var max_length = 1000
onready var laser = $Line2D
 
var shoot = false setget shooting

func _ready():
	set_physics_process(false)
 
func _unhandled_input(event):
	if event is InputEventMouseButton:
		self.shoot = event.pressed
	else:
		laser.points[1] = Vector2.ZERO
  
func _physics_process(delta):
	cast_to = (cast_to + Vector2.RIGHT * velocity * delta).clamped(max_length )
	force_raycast_update()
	if is_colliding():
		cast_to = to_local(get_collision_point())
	laser.points[1] = cast_to
 	
func shooting(cast):
	shoot  = cast
		if shoot : 
			cast_to = Vector2.ZERO
			laser.points[1] = cast_to
		set_physics_process(shoot )

cybereality

You can probably just create another ray cast at the point of collision along the collision normal. That should work, but I had some problems before with the collision normal being strange values.

Werds

@cybereality said: You can probably just create another ray cast at the point of collision along the collision normal. That should work, but I had some problems before with the collision normal being strange values.

yeah, reflection and bounce methods are so strange with RayCast2d that I don't know how to use them. vectors drive me crazy

suppose I want it to bounce more than 5 times, that means it should create 5 raycasts? (sorry for being so annoying)

TwistedTwigleg

@Werds said:

@cybereality said: You can probably just create another ray cast at the point of collision along the collision normal. That should work, but I had some problems before with the collision normal being strange values.

yeah, reflection and bounce methods are so strange with RayCast2d that I don't know how to use them. vectors drive me crazy

suppose I want it to bounce more than 5 times, that means it should create 5 raycasts? (sorry for being so annoying)

It probably depends on how you want to do it. In theory you could do it with a single raycast node, just moving and rotating it after each raycast result. Its probably easier to do it in code (documentation) though for multiple raycasts, as then you could use something like a for loop to process the bounces.