Whenever more than one projectile is launched, the recent one will position at the same offset of the last one and is not independent from the last projectile

EDIT : Also it seems like the next launched projectile speed is always speeding up

[You can test this script on studio)

local player = game.Players.LocalPlayer
local character = player.Character

local camera = game.Workspace.CurrentCamera

local uis = game:GetService("UserInputService")
local rs = game:GetService("RunService")

local lastProjectile = -tick()
local t = tick()
local dt

local Projectiles = {}
local Input = {}

local Trajectory = {}

do
	local self = Projectiles
	
	self.Position = Vector3.new()
	self.Velocity = Vector3.new()
	
	self.CreateProjectile = function()
		local projectile = Instance.new("Part", workspace)
		projectile.Size = Vector3.new(0.5, 0.5, 5)
		projectile.CFrame = character.HumanoidRootPart.CFrame 
		projectile.Position = CFrame.new(character.HumanoidRootPart.CFrame.lookVector * 10).p
		projectile.Anchored = true
		projectile.CanCollide = false
		projectile.Material = Enum.Material.Neon
		projectile.BrickColor = BrickColor.new("Copper")
		
		self.Position = projectile.Position
		
		table.insert(Trajectory, projectile)
		
		delay(3, function() self.Clear(projectile) end)
	end
	
	function self.Clear(projectile)
		if projectile then
			projectile:Destroy()
		
			for i, projectile in pairs(Trajectory) do
				if Trajectory[i] then
					Trajectory[i] = nil
				end
			end
	
			self.Position = Vector3.new()
			self.Velocity = Vector3.new()
			self.Gravity = Vector3.new()
		end
	end
	
	self.Trajectory = function(initial, velocity, delta)
		return initial + velocity * delta
	end
	
	self.Update = function(delta)
		for i, projectile in ipairs(Trajectory) do
			self.Velocity = self.Position + self.Velocity * delta
			self.Position = self.Velocity
				
			projectile.Position = self.Position
		end
	end
end

do
	local self = Input
	
	self.key = {}	
	
	uis.InputBegan:connect(function(inp, gpe)
		if gpe then return end
		self.key[inp.KeyCode.Value] = true
	end)
	
	uis.InputEnded:connect(function(inp, gpe)
		if gpe then return end
		self.key[inp.KeyCode.Value] = false
	end)
end

local function load()
	player.CameraMode = Enum.CameraMode.LockFirstPerson
	
	character.Humanoid.JumpPower = 0
end

load()

rs:BindToRenderStep("Update", 201, function()
	dt = tick() - t
	t = tick()
	
	if Input.key[32] and tick() - lastProjectile > 0.5 then
		lastProjectile = tick()
		
		Projectiles.CreateProjectile()
	end
	
	Projectiles.Update(dt)
end)
AnonymousEdited