How do i use FastCast to make a Trajectory System

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#1

Hello im trying to Create a Trajectory System Where as if the Ball is touched its launches off and a Trajectory is Calculated based on where the ball is Here is My Current Code and how I handle this now but it doesn’t seem to be feasible. How can I improve this with Fast Cast as I’ve heard its Cleaner and More Optimised for these type of things.

Here is something similar of what I’m trying to achieve.
image

But With my Ball How it works i that it targets a specific player and kill them if their not blocking, but i ant if the player is blocking then its launched off bounces around the map like a trajectory and then targets a new player. Here is my Current Setup:

Module Code:


local Settings = {}
local Event = game.ReplicatedStorage.GameEvent
local Ball: Part

function Settings:GetTarget()
	local Players = game.Players:GetPlayers()
	local rand = math.random(#Players,1)

	for i, v in pairs(Players) do
		if i == rand then
			rand = v
		end
	end
	
	return rand
end

function SpawnAndTrack()
	local Target = Settings:GetTarget()
	Ball:SetNetworkOwner(Target)
	Event:FireAllClients(Target)
end

Event.OnServerEvent:Connect(function()
	SpawnAndTrack()
end)

function Settings:Start()
	if not workspace:FindFirstChild("Ball") then
		Ball = script.Ball
		Ball = Ball:Clone()
		Ball.Parent = workspace
		Ball.Position = Vector3.new(0,0,0)
	end
	SpawnAndTrack()
end

return Settings

Here is My Client Code:

local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()

local Event = game.ReplicatedStorage.GameEvent
local RunService = game:GetService("RunService")
local Config = require(game.ReplicatedStorage.MainGameConfig)
local TweenService = game:GetService("TweenService")

local Physics = game:GetService("PhysicsService")

function ChangeBallColors(Ball: Part,Color: Color3)
	for i,v: ParticleEmitter in pairs(Ball.Attachment:GetChildren()) do
		v.Color = ColorSequence.new(Color)
	end
end

local Color = 
	{
		Blue = Color3.new(0, 0, 1),
		Red = Color3.new(1, 0, 0),
		Grey = Color3.new(0.666667, 0.666667, 1)
	}

Event.OnClientEvent:Connect(function(Target: Player)
	local Ball: Part = workspace.Ball
	
	-- Change Color Based on Target
	if Player.Name == Target.Name then
		ChangeBallColors(Ball,Color.Red)
	else
		ChangeBallColors(Ball,Color.Grey)
	end
	
	-- TrackTarget
	local TargetCharacter = Target.Character
	local function updateBallPosition()
		if TargetCharacter and TargetCharacter.PrimaryPart then
			local targetPosition = TargetCharacter.PrimaryPart.Position
			local direction = (targetPosition - Ball.Position).unit -- Calculate direction vector
			local speed = 120  -- Adjust the speed as needed
			-- Move the ball towards the player
			Ball.Position = Ball.Position + direction * speed * RunService.Heartbeat:Wait()
		else
			Ball:Destroy()
		end
	end
	
	local connection
	connection = RunService.RenderStepped:Connect(updateBallPosition)
	
	Ball.Touched:Connect(function(hit)
		if hit.Parent.Name == Target.Name then
			if TargetCharacter.Blocking.Value == true then
				connection:Disconnect()
				local knockbackForce = 2 -- Adjust the knockback force as needed
				-- Calculate knockback direction
				local knockbackDirection = (Ball.Position - hit.Parent.PrimaryPart.Position).unit

				-- Apply impulse to the ball
				local knockbackImpulse = knockbackDirection * knockbackForce
				Physics:SetPartCollisionGroup(Ball, "NonCollidable") -- Temporarily disable collisions
				Ball.Velocity = Ball.Velocity + knockbackImpulse
				task.wait(0.1) -- Delay before restoring collisions
				Physics:SetPartCollisionGroup(Ball, "Default") -- Restore collisions
				Event:FireServer()
			else
				TargetCharacter.Humanoid.Health = 0
			end
		end
	end)
end)

The Current Calcualtions are done on the Client in the Touched Event