private static void SetMissileLocation(Point point, MissileForm mf)
{
//thread switch to message loop if required
if (mf.InvokeRequired)
{
mf.Invoke(new SinglePointDelegate(InvokedSetMissileLocation), point, mf);
}
else
{
InvokedSetMissileLocation(point, mf);
}
}
private static void FireMissile(object objPoint)
{
//TEMP SO I CAN DEBUG
//_mouseHook.Stop();
Point point = (Point)objPoint;
//get random position across bottom of screen
int x = _random.Next(0, _screenWidth);
Point currentLocation = new Point(x, _screenBottom);
MissileForm mf = (MissileForm)_dumbForm.Invoke(new CreateMissileFormDelegate(CreateMissileForm), currentLocation);
//now we have to slowly move the Missile to the point clicked
//start: currentLocation
//end: point
int distance = (int)Math.Sqrt(Math.Pow(point.X - currentLocation.X, 2) + Math.Pow(point.Y - currentLocation.Y, 2));
int frames = distance / 8; //pixels per frame
float deltaX = (point.X - currentLocation.X) / (float)frames;
float deltaY = (point.Y - currentLocation.Y) / (float)frames;
//don't allow 0 delta. Instead do 1 or -1 depending on position
if (deltaX == 0)
{
deltaX = point.X < currentLocation.X ? -1 : 1;
}
if (deltaY == 0)
{
deltaY = point.Y < currentLocation.Y ? -1 : 1;
}
//precision
float _curX = currentLocation.X;
float _curY = currentLocation.Y;
//more the required number of frames for the specified delta over each direction
while (frames-- >= 0)
{
//adjust for image center
SetMissileLocation(new Point((int)_curX - 50, (int)_curY - 50), mf);
//move
_curX += deltaX;
_curY += deltaY;
//check step over bounds
if (deltaX < 0)
{
//heading left
if (_curX < point.X)
{
_curX = point.X;
}
}
else
{
//heading right
if (_curX > point.X)
{
_curX = point.X;
}
}
if (deltaY < 0)
{
//heading up
if (_curY < point.Y)
{
_curY = point.Y;
}
}
else
{
//heading down
if (_curY > point.Y)
{
_curY = point.Y;
}
}
Thread.Sleep(20);
}
//ok, we're there. Now we need to explode
mf.Invoke(new ExplodeDelegate(mf.Explode), 10);
Thread.Sleep(200);
mf.Invoke(new ExplodeDelegate(mf.Explode), 30);
Thread.Sleep(200);
mf.Invoke(new ExplodeDelegate(mf.Explode), 50);
Thread.Sleep(200);
mf.Invoke(new ExplodeDelegate(mf.Explode), 30);
Thread.Sleep(200);
mf.Invoke(new ExplodeDelegate(mf.Explode), 10);
Thread.Sleep(300);
//DIE FORM, DIE!
_dumbForm.Invoke(new MethodInvoker(mf.Dispose));
}