Submission

local runService = game:GetService("RunService")
local replicatedStorage = game:GetService("ReplicatedStorage")
local players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local debris = game:GetService("Debris")

local player = players.LocalPlayer
local viewModels = workspace:WaitForChild("ViewModels")
local camera = workspace.CurrentCamera
local mouse = player:GetMouse()
local remotes = replicatedStorage.Remotes

local guns = replicatedStorage:WaitForChild("Guns")

local gunConnection = nil
local currentAnimation = nil
local viewModel = nil
local gun = nil

local aiming = false
local firingWeapon = false
local WeaponEquipped = false
local FireDebounce = false

local configuration = nil

local lastFireTick = tick()

local module = {}



local function Fire()
    if (tick() - lastFireTick) >= configuration.Debounce then
        remotes.Fire:FireServer(mouse.Target, mouse.Hit, configuration, gun)
        lastFireTick = tick()
    else
        return
    end
end

local function PositionViewModel(gun: Model)
    local gunOffset = configuration.Offset
    local lastCameraCFrame = camera.CFrame
    local targetCFrame = CFrame.new()
    local swayOffset = CFrame.new()
    local swaySize = 1
    local isWalking = false

    gunConnection = runService.RenderStepped:Connect(function(deltaTime)
        local character = player.Character or player.CharacterAdded:Wait()
        if character then
            local humanoid = character:FindFirstChild("Humanoid")
            if humanoid then
                if humanoid.MoveDirection.Magnitude > 0 then
                    isWalking = true
                else
                    isWalking = false
                end

                local aimOffset = gun.Aim.CFrame:Inverse() * camera.CFrame * CFrame.new(0, gunOffset.Y, 0)
                local walkSineWave = math.sin(time() * 2*4) / 25
                local walkCosWave = math.cos(time() * 3*4) / 20
                local walkSineRotation = math.sin(time() * 2*4) /25
                local walkCosRotation = math.cos(time() * 3*4) / 20

                local X, Y, Z = (camera.CFrame:ToObjectSpace(lastCameraCFrame)):ToOrientation()
                swayOffset = swayOffset:Lerp(CFrame.Angles(math.sin(X / 2) * swaySize, math.sin(Y / 2) * swaySize, 0), 0.1)

                local walkCFrameOffset = CFrame.new(walkSineWave, walkCosWave, 0) * CFrame.fromEulerAnglesXYZ(0, 0, walkSineRotation)

                if aiming then
                    walkCFrameOffset = CFrame.new(walkSineWave / 10, walkCosWave / 10, 0)
                end

                if isWalking and not aiming then
                    targetCFrame = targetCFrame:Lerp(gunOffset * walkCFrameOffset * swayOffset, 0.1)
                elseif not isWalking and not aiming then
                    targetCFrame = targetCFrame:Lerp(gunOffset * swayOffset, 0.1)
                end

                if isWalking and aiming then
                    targetCFrame = targetCFrame:Lerp(walkCFrameOffset * swayOffset * aimOffset, 0.1)
                elseif not isWalking and aiming then
                    targetCFrame = targetCFrame:Lerp(swayOffset * aimOffset, 0.1)
                end

                lastCameraCFrame = camera.CFrame

                gun:PivotTo(camera.CFrame * targetCFrame)
                if firingWeapon and configuration.Automatic then
                    Fire()
                end
            end
        end
    end)
end

function module.EquipGun(gunName: string)
    local foundGun = guns:FindFirstChild(gunName)

    if foundGun == nil then
        print("GUN_NOT_FOUND")
        return
    end

    gun = foundGun:Clone()
    gun.Parent = viewModels

    configuration = require(foundGun.config)
    PositionViewModel(gun)
    viewModel = gun

    local character = player.Character or player.CharacterAdded:Wait()
    if character == nil then return end
    local humanoid = character:FindFirstChild("Humanoid")
    if humanoid == nil then return end
    local animator = humanoid:FindFirstChild("Animator")
    if animator == nil then return end
    if currentAnimation ~= nil then
        currentAnimation:Stop()
    end
    currentAnimation = animator:LoadAnimation(foundGun.Animations.Idle)
    currentAnimation:Play()
    WeaponEquipped = true
end

function module.ClearAllItems()
    if currentAnimation ~= nil then
        currentAnimation:Stop()
    end
    if gunConnection ~= nil then
        gunConnection:Disconnect()
        viewModels:ClearAllChildren()
    end
    WeaponEquipped = false
    configuration = nil
    viewModel = nil
end

UserInputService.InputBegan:Connect(function(input, gameProcessedEvent)
    if gameProcessedEvent  and not WeaponEquipped then return end

    if input.UserInputType == Enum.UserInputType.MouseButton2 then
        aiming = true
    end

    if input.UserInputType == Enum.UserInputType.MouseButton1 then
        firingWeapon = true
    end
end)

UserInputService.InputEnded:Connect(function(input, gameProcessedEvent)
    if gameProcessedEvent and not WeaponEquipped then return end

    if input.UserInputType == Enum.UserInputType.MouseButton2 then
        aiming = false
    end

    if input.UserInputType == Enum.UserInputType.MouseButton1 then
        firingWeapon = false
    end
end)

mouse.Button1Up:Connect(function()
    if configuration ~= nil and not configuration.Automatic then
        Fire()
    end
end)

return module