Expose the collider RID in Raycast nodes

Create and expose the method `get_collider_rid` in `RayCast2D` and `Raycast3D`.
This method returns the `RID` of the first object that the ray intersects, or an empty `RID` if no object is intersecting the fay (i.e. `is_colliding` returns `false`).

1 files changed, 7 insertions, 0 deletions

diff --git a/scene/2d/ray_cast_2d.cpp b/scene/2d/ray_cast_2d.cpp
index 68e5ffdcf9..c4036faa79 100644
--- a/scene/2d/ray_cast_2d.cpp
+++ b/scene/2d/ray_cast_2d.cpp
@@ -82,6 +82,10 @@ Object *RayCast2D::get_collider() const {
 	return ObjectDB::get_instance(against);
 }
 
+RID RayCast2D::get_collider_rid() const {
+	return against_rid;
+}
+
 int RayCast2D::get_collider_shape() const {
 	return against_shape;
 }
@@ -203,12 +207,14 @@ void RayCast2D::_update_raycast_state() {
 	if (dss->intersect_ray(ray_params, rr)) {
 		collided = true;
 		against = rr.collider_id;
+		against_rid = rr.rid;
 		collision_point = rr.position;
 		collision_normal = rr.normal;
 		against_shape = rr.shape;
 	} else {
 		collided = false;
 		against = ObjectID();
+		against_rid = RID();
 		against_shape = 0;
 	}
 
@@ -321,6 +327,7 @@ void RayCast2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("force_raycast_update"), &RayCast2D::force_raycast_update);
 
 	ClassDB::bind_method(D_METHOD("get_collider"), &RayCast2D::get_collider);
+	ClassDB::bind_method(D_METHOD("get_collider_rid"), &RayCast2D::get_collider_rid);
 	ClassDB::bind_method(D_METHOD("get_collider_shape"), &RayCast2D::get_collider_shape);
 	ClassDB::bind_method(D_METHOD("get_collision_point"), &RayCast2D::get_collision_point);
 	ClassDB::bind_method(D_METHOD("get_collision_normal"), &RayCast2D::get_collision_normal);