private static Vector GetPositionOnScreen(ScreenView screen, MouseState state)
{
XnaV2 xnaPos = new XnaV2(state.X, state.Y);
Vector pos = ScreenView.FromXnaCoords(xnaPos, screen.ViewportSize, Vector.Zero);
return(pos.Transform(screen.GetScreenTransform()));
}
/// <summary>
/// Muuntaa annetun pisteen maailmankoordinaateista ruutukoordinaatteihin.
/// </summary>
public Vector WorldToScreen(Vector point)
{
Matrix4x4 transform =
Matrix4x4.CreateTranslation(-new Vector(Position.X, Position.Y)) *
Matrix4x4.CreateScale(new Vector(ZoomFactor, ZoomFactor));
return(point.Transform(transform));
}
private void SetPosition(Vector pos)
{
#if !WINRT && !WINDOWS_PHONE
// Not supported on WinRT... only sets xna coords
Vector screenpos = pos.Transform(screen.GetScreenInverse());
XnaV2 center = ScreenView.ToXnaCoords(screenpos, screen.ViewportSize, Vector.Zero);
XnaMouse.SetPosition((int)center.X, (int)center.Y);
#endif
}
/// <summary>
/// Muuntaa annetun pisteen maailmankoordinaateista ruutukoordinaatteihin
/// ottaen huomioon oliokerroksen suhteellisen siirtymän.
/// </summary>
public Vector WorldToScreen(Vector point, Layer layer)
{
if (layer == null)
{
return(WorldToScreen(point));
}
if (layer.IgnoresZoom)
{
return(point.Transform(Matrix4x4.CreateScale(new Vector(1, -1)) *
Matrix4x4.CreateTranslation(new Vector(-Position.X * layer.RelativeTransition.X, Position.Y * layer.RelativeTransition.Y)) *
Matrix4x4.CreateTranslation(new Vector(Game.Screen.Size.X / 2, Game.Screen.Size.Y / 2))));
}
Matrix4x4 transform =
Matrix4x4.CreateScale(new Vector(1, -1)) *
Matrix4x4.CreateTranslation(new Vector(-Position.X * layer.RelativeTransition.X, Position.Y * layer.RelativeTransition.Y)) *
Matrix4x4.CreateScale(new Vector(ZoomFactor, ZoomFactor)) *
Matrix4x4.CreateTranslation(new Vector(Game.Screen.Size.X / 2, Game.Screen.Size.Y / 2));
return(point.Transform(transform));
}