NPC FastCast Bullets Not Working

Help and Feedback Scripting Support
#1

When i try to use parts to visualize the FastCast, the parts don’t move at all, they’re frozen in the air
when I’m using it on a NPC

Example video:

This is the code:

local Tool = script.Parent
local Handle = Tool.Handle
local FirePointObject = Handle.GunFirePoint
local FastCast = require(game:GetService("ReplicatedStorage").FastCastRedux)
local GunModule = require(game:GetService("ReplicatedStorage").GunEngine["Thompson"].GunModule)
local soundModule = require(game:GetService("ReplicatedStorage").GunEngine.SoundModule)
local hitModule = require(game:GetService("ReplicatedStorage").GunEngine.HitSounds)

local FireSound = Handle.Fire

local particle = FirePointObject.Fire

local bulletsFolder = workspace:FindFirstChild("BulletFolder") or Instance.new("Folder", workspace)
bulletsFolder.Name = "BulletFolder"

local caster = FastCast.new()

local castParams = RaycastParams.new()
castParams.FilterDescendantsInstances = {Tool.Parent, bulletsFolder}
castParams.FilterType = Enum.RaycastFilterType.Exclude
castParams.IgnoreWater = true

local castBehavior = FastCast.newBehavior()
castBehavior.RaycastParams = castParams
castBehavior.Acceleration = Vector3.new(0, 0, 0)
castBehavior.AutoIgnoreContainer = true
castBehavior.CosmeticBulletContainer = bulletsFolder
castBehavior.CosmeticBulletTemplate = GunModule.CosmeticBullet

wait(.2)

local function onLengthChanged(cast, lastPoint, direction, length, velocity, bullet)
	if bullet then
		local bulletLength = bullet.Size.Z/2
		local offset = CFrame.new(0,0,-(length - bulletLength))
		bullet = CFrame.lookAt(lastPoint, lastPoint + direction):ToWorldSpace(offset)
	end
end

local function fire(char, mouseposition)
	local origin = FirePointObject.WorldPosition
	local direction = (mouseposition - origin).Unit
	
	caster:Fire(origin, direction, GunModule.BULLET_SPEED, castBehavior)
end

caster.LengthChanged:Connect(onLengthChanged())

while wait(0.1) do
	print("fire")
	fire(Tool.Parent, Vector3.new(0,5,0))
end
#2

You’re not connecting onLengthChanged right.

You put:

caster.LengthChanged:Connect(onLengthChanged())

When it should be:

caster.LengthChanged:Connect(onLengthChanged)

Code:

local Tool = script.Parent
local Handle = Tool.Handle
local FirePointObject = Handle.GunFirePoint

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local FastCast = require(ReplicatedStorage.FastCastRedux)
local GunModule = require(ReplicatedStorage.GunEngine["Thompson"].GunModule)
local soundModule = require(ReplicatedStorage.GunEngine.SoundModule)
local hitModule = require(ReplicatedStorage.GunEngine.HitSounds)

local FireSound = Handle.Fire

local particle = FirePointObject.Fire

local bulletsFolder = workspace:FindFirstChild("BulletFolder") or Instance.new("Folder", workspace)
bulletsFolder.Name = "BulletFolder"

local caster = FastCast.new()

local castParams = RaycastParams.new()
castParams.FilterDescendantsInstances = {Tool.Parent, bulletsFolder}
castParams.FilterType = Enum.RaycastFilterType.Exclude
castParams.IgnoreWater = true

local castBehavior = FastCast.newBehavior()
castBehavior.RaycastParams = castParams
castBehavior.Acceleration = Vector3.zero
castBehavior.AutoIgnoreContainer = true
castBehavior.CosmeticBulletContainer = bulletsFolder
castBehavior.CosmeticBulletTemplate = GunModule.CosmeticBullet

task.wait(.2)

local function onLengthChanged(cast, lastPoint, direction, length, velocity, bullet)
	local bulletLength = bullet.Size.Z/2
	local offset = CFrame.new(0, 0, -(length - bulletLength))
	bullet = CFrame.lookAt(lastPoint, lastPoint + direction):ToWorldSpace(offset)
end

local function fire(char, mouseposition)
	local origin = FirePointObject.WorldPosition
	local direction = (mouseposition - origin).Unit

	caster:Fire(origin, direction, GunModule.BULLET_SPEED, castBehavior)
end

caster.LengthChanged:Connect(onLengthChanged)

while task.wait(0.1) do
	print("fire")
	fire(Tool.Parent, Vector3.new(0, 5, 0))
end

You should also be using task.wait instead of wait.

#3

Thank you for telling me that i didn’t connect onLength right. However the problem still persists.

#4

Does the gun work when you use it?

#5

It does fire bullets and they actually hit you but it’s just that the visualization for them is just broken.

#6

Ohhh okay. Fixed your onLengthChanged function.

Code:

local function onLengthChanged(cast, lastPoint, direction, length, velocity, bullet)
	local newPosition = lastPoint + direction * length
	bullet.Position = newPosition
end
#7

Thanks, It worked. Now I’ll just make the bullets destroy on impact.

1 Like
#8

If you need help doing that, feel free to ask.

#9

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