Raycast distance and shooting into the sky

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#1

I have a gun script with a set max distance, but for some reason the gun raycasts/shoots past the max distance. And also, when I shoot at the sky it doesn’t return a raycastResult. Can anyone help??

local tool = script.Parent
local fireEvent = tool.FireEvent
local firePoint = tool.Muzzle.Attachment
local debris = game:GetService("Debris")

local config = script.Parent.Configuration
local maxdist = config.MaxDistance.Value
local spread = config.Spread.Value

local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
raycastParams.IgnoreWater = true

local function onEquip()
   raycastParams.FilterDescendantsInstances = {tool, tool.Parent}
end

local function fire(mousePoint)
   local fireDistance = (tool.Muzzle.Attachment.WorldPosition - mousePoint).Magnitude
   local finalPoint = Vector3.new((mousePoint.x)+(math.random(-(spread/10)*fireDistance,(spread/10)*fireDistance)),(mousePoint.y)+(math.random(-(spread/10)*fireDistance,(spread/10)*fireDistance)),(mousePoint.z)+(math.random(-(spread/10)*fireDistance,(spread/10)*fireDistance)))
   
   local rayDirection = (finalPoint - tool.Muzzle.Attachment.WorldPosition).Unit * maxdist
   local raycastResult = workspace:Raycast(tool.Muzzle.Attachment.WorldPosition, rayDirection)
   
   if raycastResult then
   	local part = Instance.new("Part")
   	part.Parent = workspace
   	part.Anchored = true
   	part.Position = raycastResult.Position
   	print("Instance:", raycastResult.Instance)
   	print("Position:", raycastResult.Position)
   	print("Distance:", raycastResult.Distance)
   	print("Material:", raycastResult.Material)
   	print("Normal:", raycastResult.Normal)
   end
end

fireEvent.OnServerEvent:Connect(function(player, mousePoint)
   fire(mousePoint)
end)

tool.Equipped:Connect(onEquip)
1 Like
#2

for when it doesnt return raycastResult just replace the result distance with maxDistance.
raycast result is returning only in case if it hit something

2 Likes
#3

“replace the result distance with maxDistance”
How would I do that exactly?

#4 
if raycastResult then
   distance = raycastResult.Distance
else
   distance = maxDistance
end
#5

You can simplify this with a ternary to save a few lines, but your mileage may vary in terms of readability:

distance = raycastResult and raycastResult.Distance or maxDistance
#6

No no, I mean how would I actually make the beam stretch from the origin to the vector3 that is the max distance.

#7

replace origin

part.CFrame = origin * CFrame.Angles(math.rad(math.random(-(SpreadCone/2), SpreadCone/2)), math.rad(math.random(-(SpreadCone/2), SpreadCone/2)), 0) * CFrame.new(0, 0, -distance/2)

spread will be random, but yeah.

or if you dont want spread then

part.CFrame = origin*CFrame.new(0, 0, -distance/2)

if this is not what you want, then say

#8

Is there a way to integrate the “finalPoint” variable into that since the spread is in the finalPoint?

And origin is the WorldCFrame of the muzzle attachment right?

#9
  1. it can be, but i would not waste time on that, not important
  2. ye. but i using just CFrame instead of WorldCFrame
#10

And also, I’m trying to make the part stretch from the muzzle to the finalPoint (or the max distance that it CAN go if shot at the sky)

#11

So the final line should be like:

part.CFrame = CFrame.new(tool.Muzzle.Attachment.WorldCFrame, the position here)

#12

wdym by scretch? like momentally, or it will move

#13

This is a gun that clanning games use, so it doesn’t shoot bullets, but rather beams that disappear after like 0.1 seconds

#14

then its what you want

#15

try this

if raycastResult then
     distance = raycastResult.Distance
     part.CFrame = CFrame.new(tool.Muzzle.Attachment.WorldCFrame, raycastResult.Position)*CFrame.new(0, 0, -distance/2)
else
   distance = maxDistance
   part.CFrame = (tool.Muzzle.Attachment.WorldCFrame * CFrame.Angles(math.rad(math.random(-(SpreadCone/2), SpreadCone/2)), math.rad(math.random(-(SpreadCone/2), SpreadCone/2)), 0)) * CFrame.new(0, 0, -distance/2)
end
#16

It shoots WAY off. Like I can’t even see where it shot until I move my camera.

#17

always?
try to play with placement of elements

#18

Hm… nevermind that. Instead, how can I find the max Vector3 of the point where the player shot if they shot into the sky or past the maxdistance?

#19

tool.Muzzle.Attachment.WorldCFrame + Vector3.new(0, 0, maxDistance)

#20

oh, i think, you can actually do
local spread = math.random(-(SpreadCone/2), SpreadCone/2))
on the shoot begin,
and then use it on raycast and beam