public void AddViewRect(ViewRect viewRect)
{
ViewRect v = GetViewRect();
v.Add(viewRect);
SetViewRect(v);
}
static ViewRect()
{
ViewRect empty = new ViewRect();
empty.IsEmpty = true;
Empty = empty;
}
public void Add(ViewRect v)
{
int smallestRight = v.Width + v.X < Width + X ? v.Width + v.X : Width + X;
int smallestBottom = v.Height + v.Y < Height + Y ? v.Height + v.Y : Height + Y;
X = v.X > X ? v.X : X;
Y = v.Y > Y ? v.Y : Y;
Width = smallestRight - X;
Height = smallestBottom - Y;
}
public void SetViewRect(ViewRect viewRect)
{
Viewport vp = GraphicsDevice.Viewport;
vp.X = viewRect.X;
vp.Y = viewRect.Y;
vp.Width = viewRect.Width;
vp.Height = viewRect.Height;
if (vp.X < 0)
{
vp.X = 0;
}
if (vp.Y < 0)
{
vp.Y = 0;
}
if (vp.X >= graphicsManager.ScreenWidth)
{
vp.X = graphicsManager.ScreenWidth - 2;
vp.Width = 1;
}
if (vp.Y >= graphicsManager.ScreenHeight)
{
vp.Y = graphicsManager.ScreenHeight - 2;
vp.Height = 1;
}
if (vp.X + vp.Width >= graphicsManager.ScreenWidth)
{
vp.Width = graphicsManager.ScreenWidth - vp.X - 1;
}
if (vp.Y + vp.Height >= graphicsManager.ScreenHeight)
{
vp.Height = graphicsManager.ScreenHeight - vp.Y - 1;
}
if (vp.Width < 1)
{
vp.Width = 1;
ViewportIsInvalid = true;
}
if (vp.Height < 1)
{
vp.Height = 1;
ViewportIsInvalid = true;
}
GraphicsDevice.Viewport = vp;
}
public ViewRect AddGet(ViewRect v)
{
v.Add(this);
return(v);
}