Is my collision detection broken?

Help and Feedback Scripting Support
1

I tried making a cool rising/lowering platform based on whether players are standing on it. But in touch detection, if my character stops moving the touch defaults to “touch ended”

its like, enter platform → “hey touch began!” → still standing on platform but stop moving → “hey touch ended!” (what?!) and yeah this is a problem.
I tried making a custom hitbox, and i tried every touch method out there (touched/touchEnded, getTouchingParts, getPartsInPart) and all are the same.

local function makeSinkingObject(part)
    local hitbox = part.Parent:WaitForChild("Hitbox") -- part.Parent is the parent model
	game:GetService("RunService").Heartbeat:Connect(function()

		for i,v in ipairs(workspace:GetPartsInPart(hitbox)) do

			if v.Parent:FindFirstChild("Humanoid") then
				print("detected humanoid")
			else
				print("no humanoids")
			end

		end
	end)
end

if you had this problem or know Anything, please reply. I could use all the help, there were no forum posts about this… :frowning:

2

Would i help if you use the players model? You could just detect the player model.

idk if this would help though

1 Like
3

youre honestly a lifesaver. Its irrelevant which part/model you detect, but you made me think “wait, am i detecting other parts?” and realized I was also detecting the Hitbox 247 lol. Thats why it printed “not humanoid” half the time, you really made my day just now

4

Update, heres the solution. Theres actually 2 parts to this.

First, detecting characters without using a hitbox is bad, because characters are actually located 0.1 studs above ground
image

Second, when detecting with a Hitbox, constant touch detection works perfectly. You just need to add OverlapParams to GetPartsInPart, and filter the original platform from detection.

Heres the finalized code i made up, it prints the amount of parts touching the Hitbox

local hitbox = 	object.Parent:WaitForChild("Hitbox")
	
local overlapParams = OverlapParams.new()
overlapParams.FilterDescendantsInstances = object.Parent:GetDescendants()
overlapParams.FilterType = Enum.RaycastFilterType.Blacklist
	
game:GetService("RunService").Heartbeat:Connect(function()
		
	local parts = workspace:GetPartsInPart(object, overlapParams)
		
	print(#parts)
		
end)

Another code snippet here for detecting if a Humanoid is touching the Hitbox :slight_smile:

local hitbox = 	object.Parent:WaitForChild("Hitbox")

local overlapParams = OverlapParams.new()
overlapParams.FilterDescendantsInstances = object.Parent:GetDescendants()
overlapParams.FilterType = Enum.RaycastFilterType.Blacklist

game:GetService("RunService").Heartbeat:Connect(function()
	for i,v in ipairs(workspace:GetPartsInPart(object, overlapParams)) do
		if v.Parent:FindFirstChild("Humanoid") then 
				
			print("humanoid") 
				
		end
	end
end)
5

Oh ok.

Your welcome.

1 Like