Hip Fire on a gun with ScreenPointToRay

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#1

So I have been reading on the devforms for anything about hip fire related things. I also have been thinking about how to make it. I know you need to lock the mouse in the middle so it will be with the camera, and with a Gui. But how would I make the hip fire since the bullet would have to go anywhere inside the Gui? Would ScreenPointToRay, ViewportToRay, or WorldToScreenPoint work?

#2

you dont have to lock the mouse in the middle

#3

you can just make a normal 3rd person gun that shout a lot of bullets

#4

Ya but I want them to not be as accurate when you are not aiming in such as the sniper from the weapon’s kit.

#5

Alright so I figured out that I should use ScreenPointToRay but how would I get the inside of the crosshair?

#6

Alright so I got this to work if anyone wants to know how I got it to work here is the code:
BTW this is in a gui, the cross frame is just a frame to get the inside of the reticle.

local player = game.Players.LocalPlayer
local UserInput = game:GetService("UserInputService")
local CrossFrame = script.Parent.CrossFrame
local camera = game.Workspace.CurrentCamera
local Debris = game:GetService("Debris")
local Character = player.Character or player.CharacterAdded:Wait()
local rootpart = Character:WaitForChild("HumanoidRootPart")

local LaserDamage = 20

UserInput.InputBegan:Connect(function(input, chat)
if not chat then
	if input.KeyCode == Enum.KeyCode.T then
    local length = 100
	 --This would randomly put it in the camera lookVector and not inside the crosshair local middleof_screen = (camera.ViewportSize - (CrossFrame.AbsolutePosition* 2))/2
	  local middleof_screen = (CrossFrame.AbsolutePosition* 2)/2	
	 local crosshair_fireX = math.random(CrossFrame.AbsoluteSize.X) --+ 25)
	  local crosshair_fireY = math.random(CrossFrame.AbsoluteSize.Y) --+ 25 )
	   local unitray = camera:ScreenPointToRay(middleof_screen.X + crosshair_fireX, middleof_screen.Y + crosshair_fireY)
		  local ray = Ray.new(unitray.Origin, unitray.Direction * length)
			local HitPart, HitPosition = game.Workspace:FindPartOnRay(ray, Character, false, true)

			local LaserBeam = Instance.new("Part", game.Workspace)
			LaserBeam.BrickColor = BrickColor.new("Really red")
			LaserBeam.FormFactor = "Custom"
			LaserBeam.Shape = "Block"
			LaserBeam.Material = "Neon"
			LaserBeam.Transparency = 0.3
			LaserBeam.Anchored = true
			LaserBeam.CanCollide = false
			
			local LaserDistance = (rootpart.CFrame.p - HitPosition).Magnitude
			LaserBeam.Size = Vector3.new(.25, .25, LaserDistance)
			LaserBeam.CFrame = CFrame.new(rootpart.CFrame.p, HitPosition) * CFrame.new(0, 0, -LaserDistance/2)
			
			print(unitray)
				Debris:AddItem(LaserBeam, 0.4)
				
				if HitPart then
					local HitHumanoid = HitPart.Parent:FindFirstChild("Humanoid")

					if not HitHumanoid then
						HitHumanoid = HitPart.Parent.Parent:FindFirstChild("Humanoid")
					end

					if HitHumanoid then
						HitHumanoid:TakeDamage(LaserDamage)
						
				end
			end
		end
	end
end)
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