Roblox कस्टम कैरेक्टर कंट्रोलर आर्किटेक्चर: फिजिक्स फोर्सेज, रेकास्ट ग्राउंडिंग और प्रोसीजरल मूवमेंट

--!strict
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local Workspace = game:GetService("Workspace")
local Players = game:GetService("Players")

local CustomController = {}
local player = Players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local hrp = char:WaitForChild("HumanoidRootPart") :: BasePart

local TARGET_HEIGHT = 4.2
local SPRING_STIFFNESS = 1800
local SPRING_DAMPING = 160
local WALK_SPEED = 24
local RAY_PARAMS = RaycastParams.new()
RAY_PARAMS.FilterType = RaycastFilterType.Exclude

local linearVelocity = Instance.new("LinearVelocity")
linearVelocity.MaxForce = 40000
linearVelocity.VelocityConstraintMode = Enum.VelocityConstraintMode.Vector
linearVelocity.RelativeTo = Enum.ActuatorRelativeTo.World
local attachment = Instance.new("Attachment")
attachment.Parent = hrp
linearVelocity.Attachment0 = attachment
linearVelocity.Parent = hrp

function CustomController.Update(dt: number)
    local moveDir = Vector3.zero
    local cam = Workspace.CurrentCamera
    if UserInputService:IsKeyDown(Enum.KeyCode.W) then moveDir += cam.CFrame.LookVector end
    if UserInputService:IsKeyDown(Enum.KeyCode.S) then moveDir -= cam.CFrame.LookVector end
    if UserInputService:IsKeyDown(Enum.KeyCode.D) then moveDir += cam.CFrame.RightVector end
    if UserInputService:IsKeyDown(Enum.KeyCode.A) then moveDir -= cam.CFrame.RightVector end
    moveDir = Vector3.new(moveDir.X, 0, moveDir.Z)
    if moveDir.Magnitude > 0.01 then moveDir = moveDir.Unit end

    RAY_PARAMS.FilterDescendantsInstances = { char }
    local ray = Workspace:Raycast(hrp.Position, Vector3.new(0, -TARGET_HEIGHT * 1.5, 0), RAY_PARAMS)
    local vForce = 0
    local targetVel = moveDir * WALK_SPEED

    if ray and ray.Instance and ray.Instance.CanCollide then
        local dist = (hrp.Position - ray.Position).Magnitude
        targetVel = moveDir - (ray.Normal * moveDir:Dot(ray.Normal))
        targetVel = targetVel.Unit * WALK_SPEED
        local err = TARGET_HEIGHT - dist
        vForce = (err * SPRING_STIFFNESS) - (hrp.AssemblyLinearVelocity.Y * SPRING_DAMPING)
    end
    linearVelocity.VectorVelocity = Vector3.new(targetVel.X, targetVel.Y + (vForce * dt), targetVel.Z)
end

RunService.Heartbeat:Connect(CustomController.Update)
return CustomController