/// <summary>Updates the state of the input device</summary>
/// <remarks>
/// <para>
/// If this method is called with no snapshots in the queue, it will take
/// an immediate snapshot and make it the current state. This way, you
/// can use the input devices without caring for the snapshot system if
/// you wish.
/// </para>
/// <para>
/// If this method is called while one or more snapshots are waiting in
/// the queue, this method takes the next snapshot from the queue and makes
/// it the current state.
/// </para>
/// </remarks>
public void Update()
{
while (this.queuedEvents.Count > 0)
{
KeyboardEvent nextEvent = this.queuedEvents.Dequeue();
switch (nextEvent.EventType)
{
case EventType.KeyRelease: {
KeyboardStateHelper.RemovePressedKey(ref this.current, (int)nextEvent.Key);
OnKeyReleased(nextEvent.Key);
break;
}
case EventType.KeyPress: {
KeyboardStateHelper.AddPressedKey(ref this.current, (int)nextEvent.Key);
OnKeyPressed(nextEvent.Key);
break;
}
case EventType.Character: {
OnCharacterEntered(nextEvent.Character);
break;
}
case EventType.Snapshot: {
return;
}
}
}
}
public void TestAddPressedKey()
{
var state = new KeyboardState();
KeyboardStateHelper.AddPressedKey(ref state, (int)Keys.A);
KeyboardStateHelper.AddPressedKey(ref state, (int)Keys.C);
Assert.IsTrue(state.IsKeyDown(Keys.A));
Assert.IsFalse(state.IsKeyDown(Keys.B));
Assert.IsTrue(state.IsKeyDown(Keys.C));
Assert.IsFalse(state.IsKeyDown(Keys.D));
}