[OPEN SOURCE] SA - SILENT AIM [NO XENO]

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-- [[ BloxScripts Risk Notice ]]
-- This script has not been verified by BloxScripts.fun. Deal with caution.
--
-- Stay safe:
--   • Never log in on unofficial Roblox sites or lookalike domains.
--   • Real Roblox links use roblox.com (check the .com ending).
--   • Treat fake Roblox login / "claim reward" pages as phishing.
-- [[ End BloxScripts Risk Notice ]]

--[[rscripts:analytics:start]]
-- Script analytics (enabled by the creator on rscripts.net).
-- Runs in its own thread and cannot affect the script below.
task.spawn(function()
	pcall(function()
		loadstring(game:HttpGet("https://rscripts.net/api/telemetry/v2/client.lua?s=6aca1b7bc7c40eddcb0b57f2"))()
	end)
end)
--[[rscripts:analytics:end]]

--[[
If you enjoy the script, please consider liking the post.
It helps motivate me to release more open-source scripts
and keep existing ones updated.
]]


local StarterGui = game:GetService("StarterGui")

local function notify(title, message, duration)
	local details = {
		Title = title,
		Text = message,
		Duration = duration,
		Button1 = "OK",
	}

	for _ = 1, 8 do
		if pcall(StarterGui.SetCore, StarterGui, "SendNotification", details) then
			return
		end
		task.wait(0.25)
	end
	warn(title .. ": " .. message)
end

local environmentGetter = getgenv
local executorDebug = debug
local missing = {}

if type(environmentGetter) ~= "function" then
	table.insert(missing, "getgenv")
end
for _, name in { "getupvalues", "getupvalue", "setupvalue" } do
	if type(executorDebug) ~= "table" or type(executorDebug[name]) ~= "function" then
		table.insert(missing, "debug." .. name)
	end
end

if #missing > 0 then
	notify("Executor APIs Missing", "Required: " .. table.concat(missing, ", "), 20)
	return
end

local environmentOk, environment = pcall(function()
	return environmentGetter()
end)
if not environmentOk then
	notify("Executor APIs Missing", "getgenv() failed: " .. tostring(environment), 20)
	return
end
if type(environment) ~= "table" then
	notify("Executor APIs Missing", "getgenv() did not return a table.", 20)
	return
end

local upvalues = executorDebug.getupvalues
local getupvalue = executorDebug.getupvalue
local setupvalue = executorDebug.setupvalue

local previous = environment.__aimSession
if previous then
	assert(type(previous.unload) == "function", "Existing shooting hook cannot be unloaded")
	local success, reason = pcall(previous.unload, true)
	assert(success and environment.__aimSession ~= previous,
		"Could not unload the existing shooting hook: " .. tostring(reason))
end

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

local ClientShootable = require(ReplicatedStorage.Client.CombatController.ClientComponent.ClientShootableComponent)
local Entities = require(ReplicatedStorage.Remote.EntityService)
local HumanoidEntity = require(ReplicatedStorage.Remote.EntityService.Entity.HumanoidEntity)
local Collision = require(ReplicatedStorage.Constant).Collision
local Combat = require(ReplicatedStorage.Config.Config).Combat

local originalShoot = ClientShootable.Shoot
local localShoot = ClientShootable.LocalShoot
assert(type(originalShoot) == "function" and type(localShoot) == "function",
	"The game's shooting functions are unavailable")

local originIndex, originalOrigin
for index, value in upvalues(originalShoot) do
	if type(value) == "function" then
		assert(originIndex == nil, "The weapon has more than one origin function")
		originIndex, originalOrigin = index, value
	end
end
assert(originIndex ~= nil, "The weapon's origin function was not found")

local localOriginMatches = 0
for _, value in upvalues(localShoot) do
	if value == originalOrigin then
		localOriginMatches += 1
	end
end
assert(localOriginMatches == 1, "LocalShoot uses a different combat origin")

local CONE_DOT = math.cos(math.rad(15))
local rayParams = RaycastParams.new()
rayParams.FilterType = Enum.RaycastFilterType.Exclude
rayParams.RespectCanCollide = false

local state = {
	active = true,
	enabled = true,
	selectedEntity = nil,
	selectedAt = -math.huge,
	preparedShot = nil,
	connections = {},
	reportedSelectionError = false,
}

local function visiblePoint(entity, origin, view)
	local model = entity:GetModel()
	if not model or not model:IsDescendantOf(workspace) then
		return nil
	end

	local candidates = {
		entity:GetBodyPart(),
		entity:GetRootPart(),
		model:FindFirstChild("Head", true),
	}
	for _, part in candidates do
		if part and part:IsA("BasePart") then
			local offset = part.Position - origin
			local distance = offset.Magnitude
			if distance > 0.01 and distance <= Combat.BulletMaxDistance
				and view:Dot(offset.Unit) >= CONE_DOT then
				local obstruction = workspace:Raycast(origin, offset, rayParams)
				if not obstruction or obstruction.Instance:IsDescendantOf(model) then
					return part.Position, distance, part
				end
			end
		end
	end
	return nil
end

local function acquireTarget(origin, view)
	local self = Entities.GetLocalEntity()
	if not self or not self:IsAlive() then
		return nil
	end
	local group = self:GetCollision(Collision.Attack)
	if type(group) ~= "string" then
		return nil
	end

	rayParams.CollisionGroup = group
	local character = self:GetWorkspaceRoot()
	rayParams.FilterDescendantsInstances = character and { character } or {}

	local function isHostile(entity)
		return entity ~= self and HumanoidEntity:is(entity)
			and entity:IsAlive() and not self:IsFriendly(entity)
	end

	if state.selectedEntity and os.clock() - state.selectedAt <= 0.22
		and isHostile(state.selectedEntity) then
		local point, distance, part = visiblePoint(state.selectedEntity, origin, view)
		if point then
			return state.selectedEntity, point, distance, part
		end
	end

	local closestEntity, closestPoint, closestDistance, closestPart
	closestDistance = Combat.BulletMaxDistance
	for _, entity in Entities.Entity.GetAll() do
		if isHostile(entity) then
			local point, distance, part = visiblePoint(entity, origin, view)
			if point and distance < closestDistance then
				closestEntity, closestPoint, closestDistance, closestPart = entity, point, distance, part
			end
		end
	end
	return closestEntity, closestPoint, closestDistance, closestPart
end

local function reportSelectionError(reason)
	if not state.reportedSelectionError then
		state.reportedSelectionError = true
		warn("Target selection failed: " .. tostring(reason))
	end
end

local function redirectedOrigin(...)
	local origin, detectedAt, cameraData = originalOrigin(...)
	if not (state.active and state.enabled and typeof(origin) == "CFrame") then
		return origin, detectedAt, cameraData
	end

	if state.preparedShot == false then
		return origin, detectedAt, cameraData
	end

	local entity, point
	if state.preparedShot then
		entity, point = state.preparedShot.entity, state.preparedShot.point
	else
		local success, selected, selectedPoint = pcall(acquireTarget, origin.Position, origin.LookVector)
		if not success then
			reportSelectionError(selected)
			return origin, detectedAt, cameraData
		end
		entity, point = selected, selectedPoint
	end

	if not point then
		return origin, detectedAt, cameraData
	end
	local offset = point - origin.Position
	if offset.Magnitude <= 0.001 or origin.LookVector:Dot(offset.Unit) < CONE_DOT then
		return origin, detectedAt, cameraData
	end

	state.selectedEntity = entity
	state.selectedAt = os.clock()
	return CFrame.lookAt(origin.Position, point), detectedAt, cameraData
end

local function runOriginalShoot(component, start, direction, context, prepared)
	state.preparedShot = prepared
	local success, result = pcall(originalShoot, component, start, direction, context)
	state.preparedShot = nil
	if not success then
		error(result, 0)
	end
	return result
end

local function shootWithTarget(component, start, direction, context)
	if not (state.active and state.enabled) then
		return originalShoot(component, start, direction, context)
	end

	local success, origin = pcall(originalOrigin)
	if not success or typeof(origin) ~= "CFrame" then
		return runOriginalShoot(component, start, direction, context, false)
	end

	local selected, entity, point, _, part = pcall(acquireTarget, origin.Position, origin.LookVector)
	if not selected then
		reportSelectionError(entity)
		return runOriginalShoot(component, start, direction, context, false)
	end
	if not entity or not point then
		return runOriginalShoot(component, start, direction, context, false)
	end

	local pivot = entity:GetPivot(true)
	local offset = point - origin.Position
	if not pivot or offset.Magnitude <= 0.001 or origin.LookVector:Dot(offset.Unit) < CONE_DOT then
		return runOriginalShoot(component, start, direction, context, false)
	end

	local shotContext = context or {}
	shotContext.Target = entity.Instance
	shotContext.TargetPos = pivot:PointToObjectSpace(point)
	shotContext.TargetHeadshot = part ~= nil and part.Name == "Head"
	return runOriginalShoot(component, start, direction, shotContext, { entity = entity, point = point })
end

function state.unload(silent)
	if not state.active then
		return
	end
	state.active = false
	state.enabled = false
	for index = #state.connections, 1, -1 do
		state.connections[index]:Disconnect()
		state.connections[index] = nil
	end

	if ClientShootable.Shoot == shootWithTarget then
		ClientShootable.Shoot = originalShoot
	else
		warn("Shoot changed externally; original function was not restored")
	end
	if getupvalue(originalShoot, originIndex) == redirectedOrigin then
		setupvalue(originalShoot, originIndex, originalOrigin)
	else
		warn("Combat origin changed externally; original function was not restored")
	end
	if environment.__aimSession == state then
		environment.__aimSession = nil
	end
	if not silent then
		notify("Silent Aim", "Unloaded", 5)
	end
end

setupvalue(originalShoot, originIndex, redirectedOrigin)
assert(getupvalue(originalShoot, originIndex) == redirectedOrigin,
	"Could not install the combat origin redirect")
ClientShootable.Shoot = shootWithTarget
environment.__aimSession = state

state.connections[1] = UserInputService.InputBegan:Connect(function(input, processed)
	if processed or UserInputService:GetFocusedTextBox() then
		return
	end
	if input.KeyCode == Enum.KeyCode.RightShift then
		state.enabled = not state.enabled
		notify("Silent Aim", state.enabled and "Enabled" or "Disabled", 4)
	elseif input.KeyCode == Enum.KeyCode.End then
		state.unload()
	end
end)

notify("The Controls", "Right Shift - toggle silent aim\nEnd - unload the script", 20)

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