--[[
    Deletes most parts except:
    - floor/ground/dustfloor
    - walls & doors
    - characters
    - shop/UI/interactions
]]

for _, v in ipairs(workspace:GetDescendants()) do
    if v:IsA("BasePart") then

        -- 
        if v:FindFirstAncestorOfClass("Model") and
           v:FindFirstAncestorOfClass("Model"):FindFirstChildOfClass("Humanoid") then
            continue
        end

        local name = string.lower(v.Name)

        -- 
        local isProtected =
            string.find(name, "floor") or
            string.find(name, "ground") or
            string.find(name, "terrain") or
            string.find(name, "baseplate") or
            string.find(name, "dustfloor") or
            string.find(name, "grggrall") or   -- walls
            string.find(name, "grge")      -- doors

        -- 
        if v:FindFirstAncestor("Shop") or
           v:FindFirstAncestor("UI") or
           v:FindFirstAncestor("StarterGui") then
            continue
        end

        if v:FindFirstChildOfClass("ProximityPrompt") or
           v:FindFirstChildOfClass("ClickDetector") then
            continue
        end

        -- optional: keep large structural parts
        local looksLikeStructure =
            v.Anchored and v.Size.X > 20 and v.Size.Z > 20 and v.Size.Y > 5

        -- 
        if not isProtected and not looksLikeStructure then
            v:Destroy()
        end
    end
end