private void OnWinformsMouseMove(object sender, MouseEventArgs e)
{
if (!_mouseCaptured)
{
return;
}
if (_skipNextMouseMove)
{
_skipNextMouseMove = false;
return;
}
//
// Calclate the center of the window.
//
Point middle = new Point(DisplayBox.Width / 2, DisplayBox.Height / 2);
int dx = e.X - middle.X;
int dy = e.Y - middle.Y;
if (dx != 0 || dy != 0)
{
_system.IOP.Mouse.MouseMove(dx, dy);
// Don't handle the very next Mouse Move event (which will just be the motion we caused in the
// below line...)
_skipNextMouseMove = true;
Cursor.Position = DisplayBox.PointToScreen(middle);
}
}
private void HackMouseMove()
{
Point middle = new Point(DisplayBox.Width / 2, DisplayBox.Height / 2);
// Force (invisible) cursor to middle of window
Cursor.Position = DisplayBox.PointToScreen(middle);
}
private void OnDisplayMouseMove(object sender, MouseEventArgs e)
{
// Short-circuit if a script is playing.
if (ScriptManager.IsPlaying)
{
return;
}
if (!_mouseCaptured)
{
// We do nothing with mouse input unless we have capture.
return;
}
if (_skipNextMouseMove)
{
_skipNextMouseMove = false;
return;
}
// We implement a crude "mouse capture" behavior by forcing the mouse cursor to the
// center of the display window and taking the delta of the last movement and using it
// to move the Alto's mouse.
// In this way the Windows cursor never leaves our window (important in order to prevent
// other programs from getting clicked on while Missile Command is being played) and we
// still get motion events.
Point middle = new Point(DisplayBox.Width / 2, DisplayBox.Height / 2);
int dx = e.X - middle.X;
int dy = e.Y - middle.Y;
if (dx != 0 || dy != 0)
{
_system.MouseAndKeyset.MouseMove(dx, dy);
// Don't handle the very next Mouse Move event (which will just be the motion we caused in the
// below line...)
_skipNextMouseMove = true;
Cursor.Position = DisplayBox.PointToScreen(middle);
}
}
