planet

local noise = math.noise

local function GenerateBlockTerrain(arg)
    for x = 0,arg.Size.X,arg.BlockSize.X do
        for z = 0,arg.Size.Z,arg.BlockSize.Z do
            local y = noise(arg.Seed,x/arg.Scale.X,z/arg.Scale.Z) * arg.Size.Y
            local p = Instance.new("Part")
            p.Parent = game.Workspace
            p.FormFactor = Enum.FormFactor.Custom
            p.Anchored = true
            p.BrickColor = arg.Color or BrickColor.new("Camo")
            p.Material = arg.Material or Enum.Material.Grass
            p.Size = arg.BlockSize
            p.CFrame = CFrame.new(
                (arg.MiddlePosition.X/2 - arg.Size.X/2) + x,
                (arg.MiddlePosition.Y/4 + arg.Size.Y/4) - y,
                (arg.MiddlePosition.Z/2 - arg.Size.Z/2) + z
            )
        end
        wait()
    end
end

GenerateBlockTerrain{
    Size = Vector3.new(325,50,325),
    BlockSize = Vector3.new(5,15,5),
    Seed = math.random(tick()/2,os.time()),
    Scale = {X = 50,Z = 50},
    MiddlePosition = Vector3.new(0,0,0)
}