Detect an angle through collision

[gritty jasper]

i am doin some walljump type shi and i need to know the angle of a face the player just touched. i believe it could have something to do with normals, NormalId, but idk abt that :'P

this is related to the player btw so it should run in a local script

i have looked everywhere and i cant find stuff

[frigid summit]

You would need to create a server script to detect when the player hits an object

then get the objects position - players position to get forward vector between the wall and player

[sullen garnet]

raycast forwards from primarypart of character upon touching

then get raycast.Normal

[sullen garnet]

you do not need a server script, because this is client-sided movement

that would just increase delay between jumps by about two frames or more

unless of course you are using server-authenticated movement, but nearly no game on roblox does that

[gritty jasper]

i mean that would be the way of detecting the part's angle, yes

but i need the angle of the specific face

since parts have 6 faces

[sullen garnet]

blocks have 6 faces

raycast will still give you the correct angle

you just have to convert it from the normal

[gritty jasper]

oooohh

[bright sentinel]

I don't get what your trying to achieve exactly

Could you elaborate

[sullen garnet]

get the angle corresponding to the direction of a mesh's face

[gritty jasper]

player collission with part, script receives the angle of the side the player just touched

[neon beacon]

** You are now Level 1! **

[gritty jasper]

yay !

[bright sentinel]

You mean which face?

[gritty jasper]

the face and the angle its facing

[sullen garnet]

you can't get a particular face as there is no face object/id/etc. in roblox but you can get the angle at the point of intersection between a ray and a face

what i said earlier still stands just for clarification

[bright sentinel]

ye between what and the mesh's face exactly

[gritty jasper]

ooOOoooooo

[sullen garnet]

not between, just the (normalized) vector that the face is facing

[gritty jasper]

so like the point has the angle of the face, correct?

[sullen garnet]

the point is on the face/polygon of the mesh, and the mesh's face more or less contains the necessary data to reconstruct the angle in which it is facing

it depends on the exact implementation, but i believe it's probably normal for the C++ backend to construct the face from triangle vertices

if you have no idea what i just said, that's fine, you don't need to know

[gritty jasper]

lol okay

im assuming it works good with baseparts but not meshes?

bc i wasnt planning on using meshes at all so its fine that way

[sullen garnet]

it works with everything

[gritty jasper]

cool !

thanks dude

[sullen garnet]

however if you mess with basepart fidelity it may affect raycast precision (i think, i haven't used roblox in a while)

[bright sentinel]

Yup, since the objects in workspace hitboxes, will become less accurate or more accurate depending on the fidelity mode you have

[gritty jasper]

fidelity ?????

[sullen garnet]

say you have a really intricate mesh

like it's the whole harry potter castle

the collision will be precise, or it could just be a cube

that is what fidelity is

[gritty jasper]

ooohh okai okia

im getting strange stupid errors

should include all this actually

[sullen garnet]

CFrame:lookAlong(tor.Position, raycastResult.Normal) would work unless raycastResult.Normal is a table lol

i am a little confused as to why you chose to use torso but 🤷

oh wait

lol you did CFrame:lookAt

it's the colon

[gritty jasper]

huh

i am defaulting the character to R6 btw

[gritty jasper]

i dont trust the hrp that much

personal nitpicks tho