private static void UpdateScrollBar()
{
if (slotFocus >= 0)
{
scrollBarFocus = false;
return;
}
Rectangle dim = scrollBar.GetClippingRectangle(Main.spriteBatch);
Vector2 boxPos = new Vector2(dim.X, dim.Y + dim.Height * (scrollBar.ViewPosition / scrollBarMaxViewSize));
float boxWidth = 20f * Main.UIScale;
float boxHeight = dim.Height * (scrollBarViewSize / scrollBarMaxViewSize);
if (scrollBarFocus)
{
if (curMouse.LeftButton == ButtonState.Released)
{
scrollBarFocus = false;
}
else
{
int difference = curMouse.Y - scrollBarFocusMouseStart;
scrollBar.ViewPosition = scrollBarFocusPositionStart + (float)difference / boxHeight;
}
}
else if (MouseClicked)
{
if (curMouse.X > boxPos.X && curMouse.X < boxPos.X + boxWidth && curMouse.Y > boxPos.Y - 3f && curMouse.Y < boxPos.Y + boxHeight + 4f)
{
scrollBarFocus = true;
scrollBarFocusMouseStart = curMouse.Y;
scrollBarFocusPositionStart = scrollBar.ViewPosition;
}
}
if (!scrollBarFocus)
{
int difference = oldMouse.ScrollWheelValue / 250 - curMouse.ScrollWheelValue / 250;
scrollBar.ViewPosition += difference;
}
}
