Shell drop system

[Sasha899_2017 (TPaBa)]

1. What do you want to achieve? Working shell drop system

2. What is the issue? https://youtu.be/t8xNjuH3D48

3. What solutions have you tried so far? I tried to find solutions on other dev forums

Hello, I need to make shell drop system, but my shells dont drop sometimes, how can I fix it?

function shell()
	local attachment = currentGun.Receiver:FindFirstChild("Attachment")

	local part = Instance.new("Part")
	part.Parent = workspace
	part.Size = Vector3.new(0.2,0.2,0.2) 
	part.Material = Enum.Material.Neon
	part.AssemblyLinearVelocity = Vector3.new(part.CFrame.LookVector * 30) + (part.CFrame.RightVector * 10) + Vector3.new(0,20,0)
	part.CFrame = attachment.WorldCFrame
	
	debris:AddItem(part, 10)
end

[Sasha899_2017 (TPaBa)]

Im still here and need help with it

[JohhnyLegoKing]

Try setting the CFrame before the AssemblyLinearVelocity, like so:

function shell()
	local attachment = currentGun.Receiver:FindFirstChild("Attachment")

	local part = Instance.new("Part")
	part.Parent = workspace
	part.Size = Vector3.new(0.2,0.2,0.2) 
	part.Material = Enum.Material.Neon
	part.CFrame = attachment.WorldCFrame
	part.AssemblyLinearVelocity = Vector3.new(part.CFrame.LookVector * 30) + (part.CFrame.RightVector * 10) + Vector3.new(0,20,0)
	
	debris:AddItem(part, 10)
end

If it doesn’t work, you can try changing the positions of the attachments where the shells are dropping incorrectly

[Sasha899_2017 (TPaBa)]

It didn’t help, for unknown reasons the part sometimes doesn’t even appear where it’s needed

[JohhnyLegoKing]

See if doing this works:

function shell()
	local attachment = currentGun.Receiver:FindFirstChild("Attachment")

	local part = Instance.new("Part")
	part.Size = Vector3.new(0.2, 0.2, 0.2)
	part.Material = Enum.Material.Neon
	part.CFrame = attachment.WorldCFrame
	part.AssemblyLinearVelocity = Vector3.new(10, 20, -30)
	part.Parent = workspace

	debris:AddItem(part, 10)
end

[Sasha899_2017 (TPaBa)]

Still same problem, now its just fall down

[JohhnyLegoKing]

ApplyImpulse might work closer to what you’d wish:

function shell()
	local attachment = currentGun.Receiver:FindFirstChild("Attachment")

	local part = Instance.new("Part")
	part.Size = Vector3.new(0.2, 0.2, 0.2)
	part.Material = Enum.Material.Neon
	part.CFrame = attachment.WorldCFrame
	part.Parent = workspace

	part:ApplyImpulse(Vector3.new(10, 20, -30) * part.Mass)

	debris:AddItem(part, 10)
end

[Sasha899_2017 (TPaBa)]

It’s really better, but sometimes the details that they are disappear or appear where they shouldn’t be

Desktop 2024 03 27 16 14 21 10

[JohhnyLegoKing]

Using part.CFrame:PointToWorldSpace should fix that problem:

function shell()
	local attachment = currentGun.Receiver:FindFirstChild("Attachment")

	local part = Instance.new("Part")
	part.Size = Vector3.new(0.2, 0.2, 0.2)
	part.Material = Enum.Material.Neon
	part.CFrame = attachment.WorldCFrame
	part.Parent = workspace

	part:ApplyImpulse(part.CFrame:PointToWorldSpace(Vector3.new(10, 20, -30)) * part.Mass)

	debris:AddItem(part, 10)
end

[Sasha899_2017 (TPaBa)]

Thats really good, thank you so much for helping!