La flecha sigue el movimiento del mouse (código)

 

Construído en Small y Basic y graduado a Visual Basic

 

Microsoft Small Basic  Program Listing SFP468 

http://smallbasic.com/smallbasic.com/program/?SFP468

 

 

 

Código Small Basic

 

Arrow = Shapes.AddImage("http://cdn4.iconfinder.com/data/icons/markerstyle_icons/PNG/64px/arrow-right.png")
Shapes.Move(Arrow,200,200)
While 1 = 1
  Program.Delay(5)
  difx = GraphicsWindow.MouseX - 200
  dify = GraphicsWindow.MouseY - 200
  If difx > 0 Then
    Angle = Math.GetDegrees(Math.ArcTan(dify / difx))
  ElseIf difx < 0 Then
    Angle = Math.GetDegrees(Math.ArcTan(dify / difx)) + 180
  ElseIf difx = 0 And dify > 0 Then
    Angle = 90
    EndIf
    Shapes.Rotate(Arrow,Angle)
    Endwhile

 

Código Visual Basic

Module UntitledModule

    Dim Arrow, difx, dify, Angle As Primitive

    Sub Main()

        GraphicsWindow.BackgroundColor = "Yellow"

        Arrow = Shapes.AddImage("http://cdn4.iconfinder.com/data/icons/markerstyle_icons/PNG/64px/arrow-right.png")

        Shapes.Move(Arrow, 200, 200)

        While 1 = 1

            Program.Delay(5)

            difx = GraphicsWindow.MouseX - 200

            dify = GraphicsWindow.MouseY - 200

            If difx > 0 Then

                Angle = Microsoft.SmallBasic.Library.Math.GetDegrees(Microsoft.SmallBasic.Library.Math.ArcTan(dify / difx))

            ElseIf difx < 0 Then

                Angle = Microsoft.SmallBasic.Library.Math.GetDegrees(Microsoft.SmallBasic.Library.Math.ArcTan(dify / difx)) + 180

            ElseIf (difx = 0) And (dify > 0) Then

                Angle = 90

            End If

            Shapes.Rotate(Arrow, Angle)

        End While

 

    End Sub

End Module