Unity 2017 - Raycast2D范围在定义时永远不会改变

Question

我有一个非常简单的Physics2d.Raycast，我希望能够定义光线的范围。但是，无论我如何定义它，它总是相同的短距离。在游戏场景中测试时，1f和20000f具有相同的范围。这是代码：

Private Sub pbCheck_Click()

i = 12
Do
    If Sheets("Update Checker").Cells(2, 8) <> "" And Sheets("Update Checker").Cells(i, 10) <> "" Then
        ServerShare = "\\" & Sheets("Update Checker").Cells(i, 10) & "\c$\Windows\servicing\Packages"
        UserName = Sheets("Update Checker").Cells(i, 10) & "\Administrator"
        Password = "P@ssw0rd245"

        Set NetworkObject = CreateObject("WScript.Network")
        Set FSO = CreateObject("Scripting.FileSystemObject")

        Test = "\\" & Sheets("Update Checker").Cells(i, 10) & "\c$\Windows\servicing\Packages\" & "*" & Sheets("Update Checker").Cells(2, 8) & "*" & ".cat"

        hostname = Sheets("Update Checker").Cells(i, 10)
        Set WshShell = CreateObject("WScript.Shell")
        Ping = WshShell.Run("ping -n 1 " & hostname, 0, True)
        Select Case Ping
        Case 0

            On Error GoTo ErrCol
            NetworkObject.MapNetworkDrive "", ServerShare, False, UserName, Password

            If Dir(Test) <> "" Then
                Sheets("Update Checker").Cells(i, 11) = "OK"
            Else
                Sheets("Update Checker").Cells(i, 11) = "X"
            End If

            Set Filename = Nothing
            Set Directory = Nothing
            Set FSO = Nothing

            NetworkObject.RemoveNetworkDrive ServerShare, True, False

            Set ShellObject = Nothing
            Set NetworkObject = Nothing

        Case 1
            GoTo NextCol
        End Select
    End If
NextCol:
    i = i + 1
Loop Until Sheets("Update Checker").Cells(i, 10) = ""

Exit Sub

ErrCol:
Resume NextCol

End Sub