local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local CollectionService = game:GetService("CollectionService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local LocalPlayer = Players.LocalPlayer
local Camera = workspace.CurrentCamera

local Utility, GameplayUtility, Gun, FighterController
pcall(function()
    Utility = require(ReplicatedStorage.Modules.Utility)
    GameplayUtility = require(ReplicatedStorage.Modules.GameplayUtility)
    Gun = require(LocalPlayer.PlayerScripts.Modules.ItemTypes.Gun)
    FighterController = require(LocalPlayer.PlayerScripts.Controllers.FighterController)
end)

if Gun and Gun.IsFullyAiming then
    Gun.IsFullyAiming = function() return true end
end

local HitboxNames = {"HitboxHead", "HitboxHeadSmall", "PhysicalHitboxHead", "Head"}

local cache_1, cache_2 = 0, nil

local function Closest()
    if os.clock() - cache_1 < 0.05 then
        return cache_2
    end
    cache_1 = os.clock()
    cache_2 = nil

    local Mouse = UserInputService:GetMouseLocation()
    local Best, BestScreen, BestWorld = nil, math.huge, math.huge

    for _, Entity in CollectionService:GetTagged("Entity") do
        if Entity == LocalPlayer.Character then
            continue
        end

        local Player = Players:GetPlayerFromCharacter(Entity)
        if Player then
            local MyTeam, scary = LocalPlayer.Team, Player.Team
            if MyTeam and scary and MyTeam == scary then
                continue
            end
            local Humanoid = Entity:FindFirstChildOfClass("Humanoid")
            if not Humanoid or Humanoid.Health <= 0 then
                continue
            end
        end

        for _, Name in HitboxNames do
            local Part = Entity:FindFirstChild(Name, true)
            if not Part or not Part:IsA("BasePart") then
                continue
            end
            local ScreenPoint, OnScreen = Camera:WorldToViewportPoint(Part.Position)
            if not OnScreen then
                continue
            end
            local ScreenDistance = (Vector2.new(ScreenPoint.X, ScreenPoint.Y) - Mouse).Magnitude
            local WorldDistance = (Part.Position - Camera.CFrame.Position).Magnitude
            if ScreenDistance + 15 < BestScreen or (math.abs(ScreenDistance - BestScreen) <= 15 and WorldDistance < BestWorld) then
                Best, BestScreen, BestWorld = Part, ScreenDistance, WorldDistance
            end
            break
        end
    end

    cache_2 = Best
    return Best
end

local function EquippedInfo()
    local Fighter = FighterController and FighterController.LocalFighter
    local Item = Fighter and Fighter.EquippedItem
    return Item and Item.Info
end

local function Grappler()
    local Info = EquippedInfo()
    return Info ~= nil and Info.Name == "Grappler"
end

local function BulletDrop(Distance)
    local Info = EquippedInfo()
    local Speed = Info and Info.ProjectileSpeed
    local Gravity = Info and Info.ProjectileGravity
    if Speed and Speed > 0 and Gravity and Gravity > 0 then
        local Time = Distance / Speed
        return Gravity * workspace.Gravity * 0.5 * Time * Time
    end
    return 0
end

local HitParams = RaycastParams.new()
HitParams.FilterType = Enum.RaycastFilterType.Include

if GameplayUtility then
    local OldGetEntitiesFromRaycast = GameplayUtility.GetEntitiesFromRaycast
    GameplayUtility.GetEntitiesFromRaycast = function(Self, EnvID, Params, Origin, Direction, MaxDistance, ...)
        local Target = not Grappler() and Closest()
        if Target then
            Direction = (Target.Position - Origin).Unit
            local Distance = (Target.Position - Origin).Magnitude
            if Distance > MaxDistance then
                MaxDistance = Distance + 5
            end
        end
        return OldGetEntitiesFromRaycast(Self, EnvID, Params, Origin, Direction, MaxDistance, ...)
    end
end

local UseItem = ReplicatedStorage.Remotes.Replication.Fighter.UseItem
local OldFireServer
OldFireServer = hookfunction(UseItem.FireServer, function(Self, ObjID, EnumValue, CamData, Extra)
    local Inner = type(CamData) == "table" and CamData[utf8.char(1)]
    if LocalPlayer.Character and Inner and typeof(Inner[utf8.char(2)]) == "Instance" and Inner[utf8.char(0)] ~= nil and not Grappler() then
        local Target = Closest()
        if Target then
            local Origin = Camera.CFrame.Position
            HitParams.FilterDescendantsInstances = {Target}
            local Result = workspace:Raycast(Origin, Target.Position - Origin, HitParams)
            local HitPosition = Result and Result.Position or Target.Position
            local Aim = CFrame.lookAt(Origin, Target.Position + Vector3.new(0, BulletDrop((Target.Position - Origin).Magnitude), 0))

            CamData = {
                [utf8.char(1)] = {
                    [utf8.char(0)] = Utility:EncodeCFrame(Aim),
                    [utf8.char(1)] = Utility:EncodeCFrame(Aim),
                    [utf8.char(2)] = Target,
                    [utf8.char(3)] = Utility:EncodeCFrame(Target.CFrame:ToObjectSpace(CFrame.new(HitPosition))),
                }
            }
        end
    end
    return OldFireServer(Self, ObjID, EnumValue, CamData, Extra)
end)
warn'!@#$%^&*()'