我正在尝试制作一个炮塔 Ai 功能，并且能够从一个名为 Bobby 的 npc 中生成。当炮塔生成时，它会说“尝试使用‘FindFirstChild’索引 nil”，这是代码。
local clone = script.Parent:Clone()
local human = script.Parent.Humanoid
local body = script.Parent.Head
local barrel = script.Parent.Barrel
local legs = script.Parent.Legs
local hinge = script.Parent.Torso
local aimer = script.Parent.Aimer
local aimAttach = legs.Aim
while hinge:GetNetworkOwnershipAuto() do
wait()
hinge:SetNetworkOwner(nil)
end
local settingsFolder = script.Parent.Settings
local barrelHinge = script.Parent.BarrelHinge
local aimPos = barrel.AimPoint
local barrelTip = body.BarrelTip
local barrelChamber = body.BarrelChamber
local shootSound = body.Shoot
local impact = body.Impact
local smoke = barrelTip.Smoke
local sparks = body.Capcitor.Sparks
--Lightweight Humanoid
human:SetStateEnabled(Enum.HumanoidStateType.Climbing,false)
human:SetStateEnabled(Enum.HumanoidStateType.FallingDown,false)
human:SetStateEnabled(Enum.HumanoidStateType.Flying,false)
human:SetStateEnabled(Enum.HumanoidStateType.Freefall,false)
human:SetStateEnabled(Enum.HumanoidStateType.GettingUp,false)
human:SetStateEnabled(Enum.HumanoidStateType.Jumping,false)
human:SetStateEnabled(Enum.HumanoidStateType.Landed,false)
human:SetStateEnabled(Enum.HumanoidStateType.Physics,false)
human:SetStateEnabled(Enum.HumanoidStateType.PlatformStanding,false)
human:SetStateEnabled(Enum.HumanoidStateType.Ragdoll,false)
human:SetStateEnabled(Enum.HumanoidStateType.Running,false)
human:SetStateEnabled(Enum.HumanoidStateType.RunningNoPhysics,false)
human:SetStateEnabled(Enum.HumanoidStateType.Seated,false)
human:SetStateEnabled(Enum.HumanoidStateType.StrafingNoPhysics,false)
human:SetStateEnabled(Enum.HumanoidStateType.Swimming,false)
local particleFlash = {barrelTip.Flash1,barrelTip.Flash2,barrelTip.Flash3}
local currentFlash = 1
local lightFlash = barrelTip.PointLight
local tween = game:GetService("TweenService")
local currentTarget = nil
local canSeeTarget = false
local event = Instance.new("BindableEvent")
function spawner(func,...)
local connection = event.Event:Connect(func)
event:Fire(...)
connection:Disconnect()
end
function checkDist(target)
return (body.Position - target.Position).Magnitude
end
function checkSight(target)
local params = RaycastParams.new()
params.FilterDescendantsInstances = {script.Parent}
local hit = workspace:Raycast(aimPos.WorldPosition,(target.Position - aimPos.WorldPosition).Unit * settingsFolder.Range.Value, params)
if hit then
if hit.Instance:IsDescendantOf(target.Parent) then
return true
end
end
return false
end
function updateTarget()
local dist = settingsFolder.Range.Value
local tempTarget
for i,model in pairs(workspace:GetChildren()) do
local enemyHuman = model:FindFirstChildWhichIsA("Humanoid")
if model ~= script.Parent and enemyHuman and enemyHuman.Health>0 and enemyHuman.RootPart then
local enemySettings = model:FindFirstChild("Settings")
local enemyTeam
local team = false
if enemySettings then
enemyTeam = enemyTeam:FindFirstChild("TEAM")
else
enemyTeam = model:FindFirstChild("TEAM")
end
if enemyTeam then
if enemyTeam.Value == settingsFolder.TEAM.Value then
team = true
end
end
if not settingsFolder.AttackPlayers.Value then
if game.Players:GetPlayerFromCharacter(model) then
team = true
end
end
local enemyTorso = enemyHuman.RootPart
local tempDist = checkDist(enemyTorso)
if not team and tempDist < dist and tempDist > 8 and checkSight(enemyTorso) then
tempTarget = enemyTorso
dist = tempDist
end
end
end
currentTarget = tempTarget
end
function aim(target)
local dist = checkDist(target)
local targetPos = target.Position + target.Velocity/(3.9 - dist/30)
local newCFrame = CFrame.new(aimer.Position,targetPos)
local lookDiff = (newCFrame.LookVector - aimer.CFrame.LookVector).Magnitude
aimAttach.WorldCFrame = newCFrame
end
function shootTarget()
if (barrel.RotVelocity).Magnitude > 10 then
lightFlash.Enabled = true
spawner(function() wait(0.1) lightFlash.Enabled = false end)
smoke.Enabled = true
currentFlash += 1
if currentFlash > 3 then currentFlash = 1 end
particleFlash[currentFlash]:Emit(1)
local case = Instance.new("Part")
case.Size = Vector3.new(0.2,0.2,0.7)
case.Material = Enum.Material.Metal
case.CanCollide = false
case.BrickColor = BrickColor.new("New Yeller")
case.CFrame = body.Eject.WorldCFrame * CFrame.Angles(0,math.rad(180),0)
case.Velocity = case.CFrame.RightVector * -10
case.Parent = workspace
spawner(function() wait(0.2) case.CanCollide = true end)
game:GetService("Debris"):AddItem(case,2)
local bullet = Instance.new("Part")
bullet.Size = Vector3.new(0.1,0.1,0.5)
bullet.Material = Enum.Material.Neon
bullet.CanCollide = false
bullet.BrickColor = BrickColor.new("New Yeller")
bullet.CFrame = barrelChamber.WorldCFrame
bullet.Anchored = true
bullet.Parent = script.Parent
local fileMesh = Instance.new("FileMesh")
fileMesh.MeshId = "rbxassetid://5435476321"
fileMesh.TextureId = "rbxassetid://5435476346"
fileMesh.Scale = Vector3.new(0.2,0.2,0.15)
fileMesh.Parent = case
local speed = 200--75
local params = RaycastParams.new()
local iterations = 50
params.FilterDescendantsInstances = {script.Parent}
local bulletConnection
bulletConnection = game:GetService("RunService").Heartbeat:Connect(function(deltaTime)
local position,nextPosition = bullet.Position,bullet.CFrame.LookVector * deltaTime * speed
local result = workspace:Raycast(position,nextPosition,params)
if result then
bulletConnection:Disconnect()
bullet:Destroy()
local human = result.Instance.Parent:FindFirstChildWhichIsA("Humanoid")
impact.WorldPosition = result.Position
if human and human.Health > 0 then
human:TakeDamage(math.random(5,15))
impact.Hit:Play()
if human.Health <= 0 then
updateTarget()
end
elseif not human then
impact.Miss:Play()
impact.Debris:Emit(1)
for i = 1, math.random(5,10) do
local chunk = Instance.new("Part")
chunk.Color = result.Instance.Color
chunk.Material = result.Instance.Material
local size = math.random(5)/10
chunk.Size = Vector3.new(size,size,size)
chunk.CFrame = CFrame.new(result.Position)
chunk.Velocity = Vector3.new(math.random(-20,20),math.random(10,20),math.random(-20,20))
chunk.Parent = workspace
game:GetService("Debris"):AddItem(chunk,1)
end
end
else
bullet.Position = position + nextPosition
end
iterations -= 1
if iterations < 0 then
bulletConnection:Disconnect()
bullet:Destroy()
end
end)
local a0 = Instance.new("Attachment")
a0.Position = Vector3.new(0.05,0,0.05)
a0.Parent = bullet
local a1 = Instance.new("Attachment")
a1.Position = Vector3.new(-0.05,0,-0.05)
a1.Parent = bullet
local trail = Instance.new("Trail")
trail.Color = ColorSequence.new(bullet.Color)
trail.WidthScale = NumberSequence.new(1,0)
trail.Lifetime = 0.2
trail.Attachment0 = a0
trail.Attachment1 = a1
trail.Parent = bullet
local shootSfx = shootSound:Clone()
shootSfx.Parent = body
shootSfx:Play()
game:GetService("Debris"):AddItem(shootSfx,1)
game:GetService("Debris"):AddItem(bullet,10)
end
end
function combatLoop()
while human.Health > 0 do
if currentTarget and canSeeTarget then
tween:Create(barrelHinge,TweenInfo.new(0.5),{AngularVelocity = 20}):Play()
local lookDiff = (CFrame.new(body.Position,currentTarget.Position).LookVector - body.CFrame.LookVector).Magnitude
if lookDiff < 0.5 then
shootTarget()
end
else
smoke.Enabled = false
tween:Create(barrelHinge,TweenInfo.new(2),{AngularVelocity = 0}):Play()
wait(1)
end
wait(settingsFolder.FireRate.Value)
end
smoke.Enabled = false
tween:Create(barrelHinge,TweenInfo.new(2),{AngularVelocity = 0}):Play()
end
local noTargetIndex = 0
function aimLoop()
while human.Health > 0 do
if currentTarget then
if checkSight(currentTarget) then
noTargetIndex = 0
canSeeTarget = true
barrelHinge.AngularVelocity = barrelHinge.AngularVelocity
aim(currentTarget)
else
canSeeTarget = false
end
else
noTargetIndex += 1
if noTargetIndex > 2 then
noTargetIndex = 0
local pos = body.Position + Vector3.new(math.random(-20,20),math.random(-2,3),math.random(-20,20))
aim({Position = pos, Velocity = Vector3.new(0,0,0)})
end
wait(1)
end
wait()
end
end
function updateTargetLoop()
while human.Health > 0 do
updateTarget()
wait(3)
end
end
spawner(aimLoop)
spawner(updateTargetLoop)
spawner(combatLoop)
human.Died:Connect(function()
sparks.Enabled = true
body.Shutdown:Play()
aim({Position = (barrel.Position + barrel.CFrame.LookVector * 10) - Vector3.new(0,10,0),Velocity = Vector3.new(0,0,0)})
wait(settingsFolder.RespawnDelay.Value)
for i,v in pairs(script.Parent:GetChildren()) do
if v:IsA("BasePart") then
tween:Create(v,TweenInfo.new(0.5),{Transparency = 1}):Play()
sparks.Enabled = false
workspace["Turret"]:Destroy()
end
end
- wait(0.5)
if settingsFolder.Respawn.Value then
clone.Parent = script.Parent.Parent
end
sparks.Enabled = false
script.Parent:Destroy()
end)
这是抛出错误的代码。
enemyTeam = enemyTeam:FindFirstChild("TEAM")我还应该提到这使得炮塔不会攻击其他任何人。
我尝试更改团队颜色，但什么也没做。
本地敌方队伍 将其设置为 nil 然后当你这样做时 敌人团队 = 敌人团队:FindFirstChild("TEAM") 它是一样的 nil:FindFirstChild("TEAM") nil 是当你不这样做时它设置的值 = (value)