.lua

--- Services
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")

--- Instances
local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
local Camera = workspace.CurrentCamera

--- Directories
local PlayerScripts = Player:WaitForChild("PlayerScripts").Rojo
local RojoSharedModules = ReplicatedStorage:WaitForChild("RojoModules")
local TowersModels = ReplicatedStorage:WaitForChild("TowersModels")

--- Modules
local ClientData = require(PlayerScripts:WaitForChild("Data"))
local InputManager = require(PlayerScripts:WaitForChild("InputManager"))
local NetBridges = require(RojoSharedModules:WaitForChild("NetBridges"))
local TowersInfo = require(RojoSharedModules:WaitForChild("TowersInfo"))
local Utils = require(script:WaitForChild("Utils"))
local Selection = require(script:WaitForChild("Selection"))

--- Values
local PlacementConnection: RBXScriptConnection?
local CurrentHollow: Model?
local HollowRange: Part?
local CurrentSlot: string?
local isPlacing = false

--- Makes Mouse Raycast Params
local function GetMouseRayParams()
    local MouseRayParams = RaycastParams.new()
    MouseRayParams.FilterType = Enum.RaycastFilterType.Exclude
    MouseRayParams.FilterDescendantsInstances = { Character, CurrentHollow }

    return MouseRayParams
end

--- Turns Given Model's Parts Into Forcefield
local function ModelToHollow(Model: Model?)
    if not Model then
        return
    end

    for i, Descendant: BasePart | Instance in pairs(Model:GetDescendants()) do
        if Descendant:IsA("BasePart") and not Descendant:HasTag("RedArea") then
            Descendant.Material = Enum.Material.ForceField
            Descendant.Transparency = .4
        end
    end

    Model.Parent = workspace
    local RayResult = Utils.RaycastFromMouse(GetMouseRayParams())

    if RayResult then
        if RayResult.Position then
            Model:PivotTo(CFrame.new(RayResult.Position))
        end
    end
end

--- Change Color Of Hollow's Parts
-- local function ModelHollowColor(Model: Model, newColor: Color3)
--     for i, Descendant: BasePart? in pairs(Model:GetDescendants()) do
--         if Descendant:IsA("BasePart") then
--
--             if Descendant.Color == newColor then
--                 continue
--
--             end
--          
--             Descendant.Color = newColor
--         end
--     end
-- end

--- Main Placing Loop
local function StartPlacing()
    PlacementConnection = RunService.RenderStepped:Connect(function()
        if not (CurrentHollow or isPlacing) and PlacementConnection then
            PlacementConnection:Disconnect()
        end

        local RayResult = Utils.RaycastFromMouse(GetMouseRayParams())

        if RayResult and (CurrentHollow and HollowRange) then
            local RayCFrame = CFrame.new(RayResult.Position)
            local TowerInfo = TowersInfo(CurrentHollow.Name)

            if RayResult.Instance:HasTag(TowerInfo['Type']) then
                CurrentHollow:PivotTo(CurrentHollow:GetPivot():Lerp(RayCFrame, .3))
                HollowRange.Color = Color3.new(0.411764, 1, 0.411764)

            else
                CurrentHollow:PivotTo(CurrentHollow:GetPivot():Lerp(RayCFrame, .3))
                HollowRange.Color = Color3.new(1, 0, 0)
          
            end

            local HollowPosition = CurrentHollow:GetPivot().Position
            HollowRange.Position = Vector3.new(HollowPosition.X, Utils.GetConstantYPosition(HollowPosition) or HollowPosition.Y, HollowPosition.Z)
        end
    end)
end

--- Stop Placing Tower, Disconnect Connections And Destroy Models/Parts
local function StopPlacing()
    if PlacementConnection then
        PlacementConnection:Disconnect()
    end

    CurrentSlot = nil
    isPlacing = false

    Utils.TowersRedAreasVisibility(false)
    Selection.StartSeeking()

    if CurrentHollow then
        CurrentHollow:Destroy()

        if HollowRange then
            HollowRange:Destroy()
        end

        HollowRange = nil
        CurrentHollow = nil
    end
end

--- Place Stop Placing COnnection And Request Tower Placement
local function PlaceTower()
    local MouseScreenPos = UserInputService:GetMouseLocation()
    local Ray = Camera:ScreenPointToRay(MouseScreenPos.X, MouseScreenPos.Y - (Camera.ViewportSize.Y * if not RunService:IsStudio() then 0.03 else 0.075))

    local Content = {
        Action = "Place",
        Slot = CurrentSlot,
        RayOrigin = Ray.Origin,
        RayDirection = Ray.Direction,
    }

    NetBridges.Placement:Fire(Content)
    print("Fired Placement - Client")

    return
end

local function InputHandler(ActionInfo: InputManager.Action)
    local SplittedAction = ActionInfo.Action:split(' ')

    if SplittedAction[1] == "Slot" then
        local TowerId = ClientData.Data.Loadout[ActionInfo.Action]
        local TowerInInventory = ClientData.Data.TowersInventory[TowerId]

        if isPlacing then
            StopPlacing()

            return
        end

        local TowerModel = TowerInInventory and TowersModels:FindFirstChild(TowerInInventory.Name) or nil

        if TowerModel then
            CurrentSlot = ActionInfo.Action
            isPlacing = true

            CurrentHollow = TowerModel:Clone()
            ModelToHollow(CurrentHollow)

            if CurrentHollow then
                local Info = TowersInfo(CurrentHollow.Name)

                if Info then
                    HollowRange = Selection.CreateRange(CurrentHollow, Info.Range, CurrentHollow:GetPivot().Position, .55)
                end
            end
            StartPlacing()

            Utils.TowersRedAreasVisibility(true)
            Selection.StopSeeking()
        end
    end

    if ActionInfo.Action == "Click" and isPlacing then
        local RayResult = Utils.RaycastFromMouse(GetMouseRayParams())

        if RayResult and RayResult.Instance and CurrentHollow then
            local TowerInfo = TowersInfo(CurrentHollow.Name)

            if RayResult.Instance:HasTag(TowerInfo['Type']) then
                PlaceTower()
            end
        end

        StopPlacing()
    end
end

--- Connect To Actions Invoke
InputManager.ActionBegan:Connect(InputHandler)