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✓ ANSWER ACCEPTED

Why does the following code experience the listed issues?

Asked 440 views2 answers

The following code is how I handle firing a projectile into a specified direction. The client determines the direction via the mouse location and fires the below event from the server side.

Under normal circumstances, this code works exactly as intended, however, I'm experiencing two notable issues that I need help with that I just can't seem to figure out myself..

  1. The most notable issue is that the throwable object hangs up and stops due to interacting with itself. There are very random occurrences where if the projectile is sent at an empty space, there is a slight chance it will "hit" itself, causing the object to freeze in place and not proceed/interact with objects. I thought I handled avoiding this situation in the script but for some reason this still occurs. Could this possibly be due to the speed at which the code runs? I'm up for any advice to further troubleshoot and/or resolve.

  2. When hitting another player from the front of their character, we experience the above hang up again. Hitting the player from the back of the character works fine. This is likely related to the above issue.

I appreciate any help you all may be able to provide. Let me know if I need to explain any portions of this code further or give feedback on troubleshooting.

Thanks! Romul

Bin.Throw.OnServerEvent:Connect(function(player,toss,pos)
	local Char = player.Character
	local WEP = game.ServerStorage.Weapons.Throwables:FindFirstChild(toss):Clone()
	WEP.Parent = game.Workspace
	WEP.Anchored = true
	WEP.CanCollide = false
	game.Debris:AddItem(WEP,15)
	WEP.CFrame = Char.HumanoidRootPart.CFrame*CFrame.new(2,0,-4)
	WEP.CFrame = CFrame.new(WEP.CFrame.p,pos)*CFrame.Angles(math.rad(90),math.rad(0),math.rad(0))
	local DB = false
	local STEP = false
	game:GetService("RunService").Heartbeat:Connect(function()
		if not DB and WEP then
			local BEG = WEP.Position
			local DIR = (pos-BEG).Unit*4
			local RES = workspace:Raycast(BEG,DIR)
			local INT = RES and RES.Position or BEG+DIR
			local DIS = (BEG-INT).Magnitude
			WEP.CFrame = CFrame.new(BEG,INT)*CFrame.new(0,0,-DIS/2)*CFrame.Angles(math.rad(90),math.rad(0),math.rad(0))
			if STEP == false and RES and RES.Instance ~= WEP and RES.Instance.Parent ~= player.Character and not RES.Instance.Parent:IsA("Accessory") and RES.Instance.Transparency < 1 then
				local part = RES.Instance
				STEP = true
				wait(.15)
				DB = true
				if WEP:FindFirstChild("Trail") then
					WEP.Trail.Enabled = false
				end
				WEP.Anchored = false
				local WELD = Instance.new("Weld")
				WELD.Part0 = part
				WELD.Part1 = WEP
				WELD.C0 = part.CFrame:Inverse()
				WELD.C1 = WEP.CFrame:Inverse()
				WELD.Parent = WEP
				WEP.Massless = true
				local HUM = part.Parent:FindFirstChild("Humanoid") or part.Parent.Parent:FindFirstChild("Humanoid")
				if HUM then
					HUM:TakeDamage(10)
				end
			end
		end
	end)
end)
Anonymous

2 answers

✓ Accepted answer

Sounds like your Raycast might be hitting your projectile causing it to hang

The raycast function can have a filter set so you can blacklist or whitelist

Blacklist is anything you dont want to check for so your ray goes through it

or

Whitelist is only check for things in the list

An example on how to hook up this ignore system (Taken from the wiki)

    -- Build a "RaycastParams" object
    local raycastParams = RaycastParams.new()
    raycastParams.FilterType = Enum.RaycastFilterType.Whitelist -- Change this to Blacklist
    raycastParams.FilterDescendantsInstances = {workspace.Model} -- enter in your newly cloned part
    raycastParams.IgnoreWater = true
     
    -- Cast the ray
    local part = workspace.Part
    local raycastResult = workspace:Raycast(part.Position, part.CFrame.LookVector*50, raycastParams) -- then add the raycastprams to your ray cast call
     
    -- Interpret the result
    if raycastResult then
    	print("Object/terrain hit:", raycastResult.Instance:GetFullName())
    	print("Hit position:", raycastResult.Position)
    	print("Surface normal at the point of intersection:", raycastResult.Normal)
    	print("Material hit:", raycastResult.Material.Name)
    else
    	print("Nothing was hit!")
    end

hope this fixes your problem! :)

AnonymousPermalink

1 comment

0

I completely forgot about blacklisting!! You are a genius my friend, this indeed corrected the initial issue. I will have to test the player interaction later tonight but I'm sure this will resolve both issues! Thanks!!!

Anonymous#

I inserted the following code before the service is ran and it is no longer hitting itself. Thanks TGazza!

local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
raycastParams.FilterDescendantsInstances = {WEP}

Line 16 in the OG code will also need to state:

local RES = workspace:Raycast(BEG,DIR,raycastParams)
AnonymousEdited Permalink

1 comment

0

lol your welcome! :D

Anonymous#

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