I basically hit a roadblock here, and with my current knowledge of scripting and lack of relevant information here. I’m reaching out to you people for help with my problem. But I’ll be using the default template since this is my first post here.
What do you want to achieve? Keep it simple and clear!
Basically whenever my projectile (in this case, a fireball), hits a wall or surface. It basically reflects off of it.
What is the issue? Include screenshots / videos if possible!
I’ve tried as many solutions as I could find here but to no avail, the “How to reflect rays on hit” guide was probably my best shot but was unable to work, I’d get hit with a “LookVector cannot be assigned to” or nothing happens.
What solutions have you tried so far? Did you look for solutions on the Developer Hub?
As stated before, the guide above was my best shot at it but didn’t work. And I didn’t see anything about ray/projectile reflecting on the Developer Hub.
Here’s the projectile register code for those interested in figuring something out.
--Spawns Fireball
local connection
connection = game:GetService("RunService").Heartbeat:Connect(function(step)
local raycastresult = workspace:Raycast(fireballclone.Position, fireballclone.CFrame.lookVector*fireballspeed*step, raycastprams)
if raycastresult then
if raycastresult ~= nil and hit == false then
hit = true
local humanoid = raycastresult.Instance.Parent:FindFirstChild("Humanoid")
if not humanoid then
local humanoid = raycastresult.Instance.Parent.Parent:FindFirstChild("Humanoid")
end
if humanoid then
humanoid:TakeDamage(fireballdamage)
fireballclone:Destroy()
else
fireballclone:Destroy() -- Reflect would probably be somewhere here, after it detects hitting a part.
end
end
end
if fireballclone ~= nil then
fireballclone.CFrame = fireballclone.CFrame + fireballclone.CFrame.lookVector*fireballspeed*step
else
connection:Disconnect()
end
end)
Sorry if I may have messed something up, this is my first post in general here so yeah. Any help would be appreciated. Thank you.
However when trying to apply to my fireball script, it results in a “LookVector cannot be assigned to” error. I decided to try it again but same issue happened. Here’s the same code with the reflect code added to it.
local connection
connection = game:GetService("RunService").Heartbeat:Connect(function(step)
local raycastresult = workspace:Raycast(fireballclone.Position, fireballclone.CFrame.lookVector*fireballspeed*step, raycastprams)
if raycastresult then
if raycastresult ~= nil and hit == false then
hit = true
local humanoid = raycastresult.Instance.Parent:FindFirstChild("Humanoid")
if not humanoid then
local humanoid = raycastresult.Instance.Parent.Parent:FindFirstChild("Humanoid")
end
if humanoid then
humanoid:TakeDamage(fireballdamage)
fireballclone:Destroy()
else
local reflect = fireballclone.CFrame.LookVector - (2 * fireballclone.CFrame.LookVector:Dot(raycastresult.Normal) * raycastresult.Normal) -- reflect code
fireballclone.CFrame.LookVector = reflect
hit = false
end
end
end
if fireballclone ~= nil then
fireballclone.CFrame = fireballclone.CFrame + fireballclone.CFrame.lookVector*fireballspeed*step
else
connection:Disconnect()
end
end)
Try this I think it helps you with what you want to do
This code when placed inside a StarterPlayer in StarterCharacterScripts
Arrange everything as pictured
Script
local FireBallEvent = script.Parent:WaitForChild("FireBallEvent")
local Root = script.Parent.Parent:WaitForChild("HumanoidRootPart")
local function onCreateFireBallFired(player, Location)
local rng = Random.new()
local FireBall = Instance.new("Part")
FireBall.Name = "FireBall"
FireBall.TopSurface = Enum.SurfaceType.Smooth
FireBall.BottomSurface = Enum.SurfaceType.Smooth
FireBall.Size = Vector3.new(2, 2, 2)
FireBall.BrickColor = BrickColor.new("Really red")
FireBall.Shape = Enum.PartType.Ball
FireBall.Material = Enum.Material.Neon
FireBall.Anchored = true
FireBall.CanCollide = false
FireBall.Locked = true
FireBall.CFrame = Root.CFrame
FireBall.Parent = workspace
-- Create Fire
local fire = Instance.new("Fire")
fire.Heat = 10
fire.Color = FireBall.Color
fire.SecondaryColor = Color3.new(1, 1, 1) -- White
fire.Size = math.max(FireBall.Size.X, FireBall.Size.Z) -- Pick the larger of the two dimensions
fire.Parent = FireBall
local maxDistance = 200
local curDistance = 0
local stepDistance = 4
local stepWait = 0
local currentPos = Root.Position
local currentNormal = CFrame.new(Root.CFrame.p, Location).lookVector
local function Step(overrideDistance)
-- Cast ray:
local params = RaycastParams.new()
local direction = currentNormal * (overrideDistance or stepDistance)
params.FilterType = Enum.RaycastFilterType.Blacklist
params.FilterDescendantsInstances = {script.Parent.Parent}
local result = workspace:Raycast(currentPos, direction)
local pos
if result then
pos = result.Position
else
pos = currentPos + direction
end
-- Update laser position:
FireBall.Size = Vector3.new(2, 2, (pos - currentPos).Magnitude)
FireBall.CFrame = CFrame.new(currentPos:Lerp(pos, 0.5), pos)
local oldPos = currentPos
currentPos = pos
if result then
-- r = d - 2(d DOT n)n
-- Reflect:
local norm = result.Normal
local reflect = (currentNormal - (2 * currentNormal:Dot(norm) * norm))
currentNormal = reflect
Step(stepDistance - (pos - oldPos).Magnitude)
return
end
curDistance = (curDistance + (pos - oldPos).Magnitude)
-- Apply fade effect to laser as it approaches max distance from < 75 studs:
if curDistance > (maxDistance - 75) then
local d = (curDistance - (maxDistance - 75)) / 75
FireBall.Transparency = d
end
-- Recurse if max distance not reached:
if curDistance < maxDistance then
wait(stepWait)
Step()
end
end
FireBall.Touched:connect(function(hit)
if hit.Parent.Name ~= script.Parent.Parent.Name then
local humanoid = hit.Parent:FindFirstChild("Humanoid")
if humanoid then
humanoid:TakeDamage(30)
FireBall:Destroy()
end
end
end)
Step()
-- Done! Destroy laser:
FireBall:Destroy()
end
FireBallEvent.OnServerEvent:Connect(onCreateFireBallFired)
LocalScript
local FireBallEvent = script.Parent:WaitForChild("FireBallEvent")
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
mouse.Button1Down:Connect(function()
local Location = mouse.Hit.p
FireBallEvent:FireServer(Location)
end)
If you put everything in its proper place you will have this
