Seguire il mouse

La linea segue il puntatore del mouse

GraphicsWindow.MouseMove=MouseMosso

xC=GraphicsWindow.Width/2
yC=GraphicsWindow.Height/2
Sub MouseMosso
   x=GraphicsWindow.MouseX
   y=GraphicsWindow.MouseY
 
   GraphicsWindow.Clear()
   GraphicsWindow.DrawLine(xC,yC, x,y)
   Program.Delay(25)
Endsub

E disegna un mirino

w=GraphicsWindow.Width
h=GraphicsWindow.Height
GraphicsWindow.MouseMove=MouseMosso

r1=10
d1=2*r1
r2=20
d2=2*r2

Sub MouseMosso
   x=GraphicsWindow.MouseX
   y=GraphicsWindow.MouseY
   GraphicsWindow.Title="x=" + x + ", y=" + y

   GraphicsWindow.Clear()
   GraphicsWindow.DrawLine(0,y, w,y)
   GraphicsWindow.DrawLine(x,0, x,h)
   GraphicsWindow.DrawEllipse(x-r1, y-r1, d1,d1)
   GraphicsWindow.DrawEllipse(x-r2, y-r2, d2,d2)
   Program.Delay(25)
Endsub