How To Make A Proper Hitbox

Help and Feedback Scripting Support
#1

I want to learn how to create a proper hitbox, for example one that follows a character swinging his sword. I couldn’t find anything online though about how to go about this or what method to use, so I want to know what I have to learn or use to be able to do this. I’m afraid of using a bad technique and creating a laggy hitbox, or one that’s unnecessarily taxing.

1 Like
#2

You can weld a part which has cancollide and anchored off

#3

What technique should I use though to tell if a player has entered the hitbox?

#4

Region3 possibly, could you elaborate on that so i can help you more.

#5

No, dont use region3 as its deprecated. You should use spacial query instead (it’s a new version of region3) Introducing OverlapParams - New Spatial Query API

2 Likes
#6

You could either make a touch connection threw client and do some verification threw server or use GetPartsInPart with a welded hitbox basepart.

Me personally I would just recommend doing any type of hit detection on client and finding a way on server to check if it counts something like distance, it helps for smoother gameplay.

#7

My bad. I didn’t know region3 was deprecated, thank you for telling me.

#8

what could I use for hit detection? I was trying parts in part but the issue is, I dont want to constantly run the script while a hitbox is active, i feel like that creates a lot of lag.

#9

You could try making a Trigger function that checks if any player’s character was detected in your hitbox and if so it can return their character. It shouldn’t be a constant check unless you want to always be checking when your swinging then no you shouldn’t have performing issue doing it on client, but server would be different.

#10

How specifically could I check if a player has entered though? What exactly could I use to check for that, if I want to check for more than an instant?

#11

Do you mean like detecting if its a npc or player, or multiple detection in one swing ?

#12

Also if you’re not trynna reinvent the wheel on a proper hitbox I recommend taking a look on Raycast Hitbox

#13

Maybe this:

local swinging = false
local hadbeenattacked = {}
-- Make swinging true when you're swinging
while swinging do
   for i, part in ipairs(hitbox:GetPartInParts()) do
      if part.Parent:FindFirstChild('Humanoid') and not hadbeenattacked[part.Parent] then
         part.Parent.Humanoid:TakeDamage(20)
         table.insert(hadbeenattacked, part. Parent)
      end
   end 
   wait()
end
-- Make swinging false when you stop swinging and set hadbeenattacked back to {}
#14

Example:

for _, v in pairs(workspace:GetPartsInPart(workspace.Hitbox) do --GetPartsInPart returns a table of parts that are touching player
if v.Name == "HumanoidRootPart" then 
local char = v.Parent
--code to do smth to the character idk
end end
#15

Here’s my hitbox guide. It sounds like you’re looking for a raycast hitbox, since you want the hitbox to precisely be where the sword is at.

2 Likes
#16

As far as I know, roblox physics are genuinely awful and if you want really good hit detection, then you need to sacrifice a small amount of performance. Personally, here is what I would do

Every frame (you can use RunService.HeartBeat event) get all parts inside of the sword using workspace:GetPartsInBoundingBox(). Now that you have a list of all parts inside the sword, loop through all of them to check if it’s a valid player that you can damage

#17

Should I do this on client side to prevent lag?

#18

Yeah sure go ahead, but I don’t know if dealing damage on the client is a good idea…

#19

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.