raycast 2d that applies force to a rigid body

Godot Version

4.5.1

Question

was wondering how would one go about making a raycast apply force to a rigidbody on collision, i've been trying to see how i would be able to tell a script to only apply this force if it detects the collider is rigid body 2d and I can't seem wrap my head around collision scripting

Hi,

Raycast by themselves do not do anything other than giving you the information that something was hit or not. Cool thing is, with a raycast, you have a direction, a distance, and the info of what node got hit, so you can easily apply a force to any object that has been hit by your raycast, you just have to do it in a few steps.

This is pseudo code, but that should look something like this:

var raycast_result: raycast(direction)      # Raycast
var hit_node = raycast_result.node          # Retrieve hit node for raycast
if hit_node:                                # Check if there's a node hit by raycast
    hit_node.position += direction * force  # Force application

I’d suggest you give it a try and ask more specific questions about any issue you may encounter. The implementation may be tricky, but the idea is easy: cast your ray, and if something is detected, push it in the ray direction.

1 Like