add range indicator when placing towers

TrackLogic.lua

@@ -1,4 +1,6 @@
 local RunService = game:GetService("RunService")
+local UserInputService = game:GetService("UserInputService")
+
 local Tower = require(script.Parent.Tower)
 local Waves = require(script.Parent.Waves)
 
@@ -46,6 +48,8 @@ local waypoints = { -- Fill with your waypoint Parts
 local selectedTowerType = towerTypes[1]
 local enemies = {} -- Table to hold TrackEnemy objects
 local towers = {}
+local placingTower = false
+local rangeIndicator = nil
 
 function selectTowerType(index)
     selectedTowerType = towerTypes[index]
@@ -79,9 +83,57 @@ local function isOnTrack(position)
     return false
 end
 
+local function showRangeIndicator(position, range)
+    if not rangeIndicator then
+        rangeIndicator = Instance.new("Part")
+        rangeIndicator.Name = "RangeIndicator"
+        rangeIndicator.Shape = Enum.PartType.Cylinder
+        rangeIndicator.Anchored = true
+        rangeIndicator.CanCollide = false
+        rangeIndicator.Transparency = 0.6
+        rangeIndicator.Color = Color3.fromRGB(100, 200, 255)
+        rangeIndicator.Material = Enum.Material.Neon
+        rangeIndicator.Size = Vector3.new(range * 2, 0.2, range * 2)
+        rangeIndicator.Parent = workspace
+        -- Rotate so cylinder is flat
+        rangeIndicator.Orientation = Vector3.new(0, 0, 90)
+    end
+    rangeIndicator.Size = Vector3.new(range * 2, 0.2, range * 2)
+    rangeIndicator.Position = Vector3.new(position.X, position.Y + 0.1, position.Z)
+    rangeIndicator.Visible = true
+end
+
+local function hideRangeIndicator()
+    if rangeIndicator then
+        rangeIndicator:Destroy()
+        rangeIndicator = nil
+    end
+end
+
+RunService.RenderStepped:Connect(function ()
+    if placingTower then
+        local mouse = game.Players.LocalPlayer:GetMouse()
+        local position = mouse.Hit.p
+        showRangeIndicator(position, selectedTowerType.range)
+    else
+        hideRangeIndicator()
+    end
+end)
+
+UserInputService.InputBegan:Connect(function(input, gameProcessed)
+    if gameProcessed then return end
+    if input.KeyCode == Enum.KeyCode.T then
+        placingTower = not placingTower
+        print("Tower Placing Mode:", placingTower and "ON" or "OFF")
+        if not placingTower then
+            hideRangeIndicator()
+        end
+    end
+end)
+
 UserInputService.InputBegan:Connect(function (input, gameProcessed)
     if gameProcessed then return end
-    if input.UserInputType == Enum.UserInputType.MouseButton1 then
+    if input.UserInputType == Enum.UserInputType.MouseButton1 and placingTower then
         local mouse = game.Players.LocalPlayer():GetMouse()
         local position = mouse.Hit.p
         if not isOnTrack(position) then
@@ -94,6 +146,7 @@ UserInputService.InputBegan:Connect(function (input, gameProcessed)
                 selectedTowerType.effect
             )
             table.insert(towers, tower)
+            hideRangeIndicator()
         end
     end
 end)