Ray casting: stop casting at first intersection?
Please take a look at the following tutorial from the Roblox wiki: http://wiki.roblox.com/index.php?title=Making_a_ray-casting_laser_gun - a simple and classic ray casting laser gun.
What I cannot understand is how to configure a ray, i.e. the laser beam in the tutorial, such that (a) it goes through all obstacles (b) ray stops projecting as soon as it is hit (i.e. on the first intersection)
If I shoot a laser beam, I normally don't want it to go past walls! But I can imagine some situations where I would want that. So both scenarios are important to consider.
Can someone help me understand how to approach these issues maybe helping me dig through the documentation?
1 answer
That tutorial uses the method of workspace FindPartOnRay(). Workspace has another method, FindPartOnRayWithIgnoreList(), which takes a second parameter that is an array of instances to ignore. An intersection with any instance in this array, or as a child of an instance in this array, will be ignored.