Scripting HelpersARCHIVE
A little piece of Roblox history. Preserved for everyone, one question at a time.Read about the archive →
All questions/Question #26539
✓ ANSWER ACCEPTED

How to make a RayCast be off set?

Asked 358 views1 answers

Okay so I'm Making a Ray Casting Gun. The problem I have is that I want to make a Recoil Effect on the Gun. Using math.random and Arithmetics I tried making it with this but i did not get me the results i wanted

local Vector3 = Instance.new("Vector3Value")
local x = mouse.Hit.p.X
local y = mouse.Hit.p.Y
local z = mouse.Hit.p.Z
while true do 
	wait()
	Vector3.Value.X = x
	Vector3.Value.Y = y
	Vector3.Value.Z = z
end
Vector3.Value.X = Vector3.Value.X  + math.random(1,0.5)
Vector3.Value.Y = Vector3.Value.Y + math.random(1,0.5)
Vector3.Value.Z= Vector3.Value.Z + math.random(1,0.5)
												--^ the offset i'm talking about. It gets called each time i fire the gun.
local x1,y1,z1 = Vector3.Value.X,Vector3.Value.Y,Vector3.Value.Y,Vector3.Value.Z


local ray = Ray.new(tool.Part.CFrame.p, (Vector3.Value - tool.Part.CFrame.p).unit * 300)
											-- ^ mouse.Hit.p originally goes here

Is there another way to do this? Am i Doing this wrong? Or this is just impossible?

Anonymous

1 comment

0

Any output?

Anonymous#

1 answer

✓ Accepted answer

Looks like you're trying to simulate spread, not recoil. If so, the following code should help:

-- the tool
local tool = script.Parent
-- the muzzle of the gun, where the ray will start
local muzzle = tool:WaitForChild("Part") 
-- the player's mouse
local mouse = game.Players.LocalPlayer:GetMouse()

-- a variable that defines the maximum spread, in degrees
local SPREAD_DEGREES = 10

--- function called when the gun fires
function shoot()
	local start = muzzle.CFrame.p
	local mouseaim = mouse.Hit.p

	local aim = CFrame.new(start, mouseaim) -- creates a CFrame starting at muzzle looking (pointing) at where the mouse is aiming
	aim = aim * CFrame.Angles(0, 0, math.random() * 2 * math.pi) -- rotates the CFrame along its z-axis by a value between 0 and 360 degrees
	aim = aim * CFrame.Angles(math.random() * math.rad(SPREAD_DEGREES), 0, 0) -- rotate the CFrame along its x-axis by a value between 0 and SPREAD_DEGREES degrees

	local ray = Ray.new(aim.p, aim.lookVector * 300) -- cast a ray
	--TODO: check where the ray hits and act accordingly
end
AnonymousEdited Permalink

1 comment

0

Except is that im making a machine gun and i want the Mouse aim to update every time it moves around the screen

Anonymous#

This discussion is preserved as it was. New answers, comments, and votes are closed.