public void Update(ref InputState previous, ref InputState current)
{
PreviousState = CurrentState;
var mouseState = CurrentState = Mouse.GetState();
if (!HasState)
{
PreviousState = CurrentState;
}
current.Buttons |= ((mouseState.LeftButton == ButtonState.Pressed) ? MouseButtons.Left : MouseButtons.None);
current.Buttons |= ((mouseState.MiddleButton == ButtonState.Pressed) ? MouseButtons.Middle : MouseButtons.None);
current.Buttons |= ((mouseState.RightButton == ButtonState.Pressed) ? MouseButtons.Right : MouseButtons.None);
current.Buttons |= ((mouseState.XButton1 == ButtonState.Pressed) ? MouseButtons.X1 : MouseButtons.None);
current.Buttons |= ((mouseState.XButton2 == ButtonState.Pressed) ? MouseButtons.X2 : MouseButtons.None);
var prevPosition = new Vector2(PreviousState.X, PreviousState.Y) * Scale + Offset;
var newPosition = new Vector2(mouseState.X, mouseState.Y) * Scale + Offset;
if (PreviousState.ScrollWheelValue != CurrentState.ScrollWheelValue)
{
current.WheelValue = mouseState.ScrollWheelValue * MouseWheelScale;
}
if (!HasState)
{
HasState = true;
return;
}
var isPriority = Context.IsPriorityInputSource(this);
var insideWindow = Context.CanvasRect.Contains(newPosition);
if ((CurrentState.X != PreviousState.X) || (CurrentState.Y != PreviousState.Y))
{
if (insideWindow || isPriority)
{
current.CursorPosition = newPosition;
current.KeyboardNavigationEnded = true;
if (!isPriority)
{
Context.PromoteInputSource(this);
}
}
}
}