Detection question

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#1

How could I detect when a part is near another part constantly without decreasing performance?

#2

How about checking the magnitude/distance of the parts to ensure its close.Also you can use runservice heartbeat to constantly check the distance

#3

I’m trying to snap a block to the nearest face of another block, would this work for it?

#4

that’s be performance heavy if your checking the entire workspace, what i’ve done for my conveyor belt system is using workspace:PartsInParts with the ray query set to whitelist and i have the belt sides tagged so each belt can find the previous belt or the next belt.

You can do a similar process where you add all the parts you want to check into a tag with collection service and check to see if it’s colliding with the other part, i hope this makes sense i can write a basic script for it but it won’t be for a couple hours possibly

#5

So would I have to add invisible sides or a part extruding outwards for each face of a block to snap it like a hitbox? Also, I know what a ray is but what’s a ray query

#6

yeah they’d be like invisible hit points, i’ll see if i can make you an example script

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#7

I haven’t tested it but something like this should snap work.

local CollectionService = game:GetService("CollectionService")

function getSnap(snap: BasePart)
	local awSnaps = CollectionService:GetTagged("awsnap") --// haha, all snaps
	local snapulquery = OverlapParams.new()
	snapulquery.FilterType = Enum.RaycastFilterType.Include
	snapulquery.FilterDescendantsInstances = awSnaps
	
	local snapInSnaps = workspace:GetPartsInPart(snap, snapulquery)
	return #snapInSnaps > 0 and snapInSnaps[1] or false
end
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#8

I’m not sure if I understood this topic correctly, but if the use case is for building (thats what I understood from the face snapping), why not use raycasts instead?

Whats the exact use case?

GetPartsInPart can sometimes be performance intensive if used too much.

#9

Your wanting me to ray cast from all the faces that the object has? isn’t that also performance intensive or I’m just getting it all wrong

#10

Try to group up your checks, and maybe:

local rs = game:GetService("RunService")  
rs.Stepped:Wait() -- helps regulate them at a realistic rate in loop(s)

one way…

local rs = game:GetService("RunService")  
while rs.Stepped:Wait() do  
    -- program friendly loop 
end
#11

Can you describe what your use case is?