public static T CreateInstance(Key key)
{
XUtils.Assert(sInstances != null, "must initialize XPluralton");
lock ( sInitLock )
{
if (sInstances.ContainsKey(key))
{
XUtils.Assert(false, "instance already exists for this key");
return(Instance(key));
}
// Create an instance via the private constructor
Type t = typeof(T);
T instance = (T)Activator.CreateInstance(t, true);
sInstances.Add(key, instance);
return(instance);
}
}
// called by broadcaster
public void Post(EventData e)
{
if (mEvents.Count == mMaxCapacity)
{
if (mFullBehaviour == eEventQueueFullBehaviour.Assert)
{
XUtils.Assert(false, "listener queue full");
}
else if (mFullBehaviour == eEventQueueFullBehaviour.IgnoreOldest)
{
mEvents.Dequeue();
mEvents.Enqueue(e);
}
// deliberate fall through for Ignore
}
else
{
mEvents.Enqueue(e);
}
}
public static T CreateInstance()
{
lock ( sInitLock )
{
if (sInstance != null)
{
XUtils.Assert(false, "instance already exists");
return(sInstance);
}
Type t = typeof(T);
// Ensure there are no public constructors...
ConstructorInfo[] ctors = t.GetConstructors();
if (ctors.Length > 0)
{
throw new InvalidOperationException(String.Format("{0} has at least one accesible ctor making it impossible to enforce singleton behaviour", t.Name));
}
// Create an instance via the private constructor
sInstance = (T)Activator.CreateInstance(t, true);
return(sInstance);
}
}
public Vector2 GetMin()
{
XUtils.Assert(mIsValid);
return(mMin);
}
private Vector2 GetSingleTouchPos()
{
XUtils.Assert(mTouches.Count == 1);
return(mTouches[0].Position);
}
private static void Validate(Vector2 min, Vector2 max)
{
XUtils.Assert(max.X >= min.X && max.Y >= min.Y);
}
public void ScaleWorld(float f)
{
XUtils.Assert(mIsValid && f >= 0f);
mMin *= f; mMax *= f;
}
public float GetArea()
{
XUtils.Assert(mIsValid);
return((mMax.X - mMin.X) * (mMax.Y - mMin.Y));
}
public Vector2 GetRadius()
{
XUtils.Assert(mIsValid);
return(0.5f * GetSize());
}
public virtual void Render(XSimpleDraw simple_draw)
{
XUtils.Assert(mInitialized);
}
public void SetInputEnabled(bool value)
{
XUtils.Assert(mInitialized);
mInputEnabled = value;
}
public Position GetPosition()
{
XUtils.Assert(mInitialized);
return(mPosition);
}
public Widget GetScreenWidget()
{
XUtils.Assert(mScreenWidget != null);
return(mScreenWidget);
}
public xMapCell GetMapCell(xCoord coord)
{
XUtils.Assert(coord.x >= 0 && coord.y >= 0 && coord.x < mMap.mBounds.x && coord.y < mMap.mBounds.y);
return(mMap.mData[coord.x, coord.y]);
}
public Vector2 GetMax()
{
XUtils.Assert(mIsValid);
return(mMax);
}
public void AddChild(Widget child)
{
XUtils.Assert(child != null && mChildren.Find(Widget.CompareWidgets(child)) == null);
mChildren.Add(child);
}
public Vector2 GetSize()
{
XUtils.Assert(mIsValid);
return(mMax - mMin);
}
public void RemoveChild(Widget child)
{
XUtils.Assert(child != null && mChildren.Remove(child));
}
public Vector2 GetCenter()
{
XUtils.Assert(mIsValid);
return(0.5f * (mMin + mMax));
}
public void Subscribe(XListener <EventData> listener)
{
// TODO: maybe add returns number added, so avoid 'contains'
XUtils.Assert(!mListeners.Contains(listener), "this listener already subscribed");
mListeners.Add(listener);
}
public bool Contains(Vector2 point)
{
XUtils.Assert(mIsValid);
return(point.X >= mMin.X && point.X <= mMax.X && point.Y >= mMin.Y && point.Y <= mMax.Y);
}
public void Unsubscribe(XListener <EventData> listener)
{
// TODO: maybe remove returns number removed, so avoid 'contains'
XUtils.Assert(mListeners.Contains(listener), "this listener is not subscribed");
mListeners.Remove(listener);
}
public void Translate(Vector2 translation)
{
XUtils.Assert(mIsValid);
mMin += translation;
mMax += translation;
}
public static void UnitTest()
{
TestListener listener = new TestListener();
TestBroadcaster broadcaster = new TestBroadcaster();
XUtils.Assert(listener.mMailbox1.GetNumEvents() == 0);
//listener_1.mMailbox1.ReadNext(); // correctly hit assert for reading no events
var event1 = new tEvent1();
event1.a = 2;
XUtils.Assert(broadcaster.mEvent1.IsSubscribed(listener.mMailbox1) == false);
broadcaster.mEvent1.Subscribe(listener.mMailbox1);
XUtils.Assert(broadcaster.mEvent1.IsSubscribed(listener.mMailbox1) == true);
broadcaster.mEvent1.Post(event1);
XUtils.Assert(listener.mMailbox1.GetNumEvents() == 1);
var enumerator_1 = listener.mMailbox1.CreateEnumerator();
enumerator_1.MoveNext();
tEvent1 event_read = enumerator_1.GetCurrent();
XUtils.Assert(listener.mMailbox1.GetNumEvents() == 0);
XUtils.Assert(event_read.a == 2);
// listener.mMailbox1.ReadNext(); // correctly asserts for reading no events after having one
broadcaster.mEvent1.Post(event1);
// broadcaster.mEvent1.Post( event1 ); // correctly asserts for event queue full
var event3 = new tEvent3();
event3.c = 'a';
broadcaster.mEvent3.Subscribe(listener.mMailbox3);
broadcaster.mEvent3.Post(event3);
var event4 = new tEvent3();
event4.c = 'b';
broadcaster.mEvent3.Post(event4);
broadcaster.mEvent3.Post(event4);
XUtils.Assert(listener.mMailbox3.GetNumEvents() == 1);
var enumerator_3 = listener.mMailbox3.CreateEnumerator();
enumerator_3.MoveNext();
XUtils.Assert(enumerator_3.GetCurrent().c == 'a');
var event2 = new tEvent2();
var event6 = new tEvent2();
var event7 = new tEvent2();
event2.b = 1.0f;
broadcaster.mEvent2.Subscribe(listener.mMailbox2);
broadcaster.mEvent2.Post(event2);
event6.b = 2.0f;
broadcaster.mEvent2.Post(event6);
event7.b = 3.0f;
broadcaster.mEvent2.Post(event7);
XUtils.Assert(listener.mMailbox2.GetNumEvents() == 2);
var enumerator2 = listener.mMailbox2.CreateEnumerator();
enumerator2.MoveNext();
XUtils.Assert(enumerator2.GetCurrent().b == 2.0f);
enumerator2.MoveNext();
XUtils.Assert(enumerator2.GetCurrent().b == 3.0f);
TestListener listener2 = new TestListener();
broadcaster.mEvent1.Subscribe(listener2.mMailbox1);
var e1 = listener.mMailbox1.CreateEnumerator();
e1.MoveNext();
XUtils.Assert(listener.mMailbox1.GetNumEvents() == 0);
XUtils.Assert(broadcaster.mEvent1.IsSubscribed(listener.mMailbox1));
broadcaster.mEvent1.Post(event1);
XUtils.Assert(listener.mMailbox1.GetNumEvents() == 1);
XUtils.Assert(listener2.mMailbox1.GetNumEvents() == 1);
}
public static void UnitTest()
{
xAABB2 aabb1 = new xAABB2();
XUtils.Assert(aabb1.mIsValid == false);
xAABB2 aabb2 = new xAABB2(Vector2.Zero);
xAABB2 aabb3 = new xAABB2(Vector2.Zero, 1f);
xAABB2 aabb4 = new xAABB2(Vector2.Zero, Vector2.Zero);
XUtils.Assert(aabb2.IsValid() && aabb3.IsValid() && aabb4.IsValid());
aabb2.Reset();
XUtils.Assert(!aabb2.IsValid());
Vector2 oneTwo = new Vector2(1f, 2f);
Vector2 negTwoFour = -2f * oneTwo;
Vector2 TwentyTen = new Vector2(20f, 10f);
const float kTol = 0.001f;
aabb2.Set(oneTwo);
XUtils.AssertVal(aabb2.mMin, oneTwo, kTol);
XUtils.AssertVal(aabb2.mMax, oneTwo, kTol);
XUtils.Assert(aabb2.IsValid());
//aabb2.Set( oneTwo, negTwoFour ); inside out, asserts, good
aabb2.Set(negTwoFour, oneTwo);
XUtils.Assert(aabb2.Contains(Vector2.Zero));
XUtils.Assert(!aabb2.Contains(TwentyTen));
XUtils.Assert(aabb2.Contains(negTwoFour));
XUtils.Assert(aabb2.Contains(oneTwo));
XUtils.Assert(!aabb2.Contains(-TwentyTen));
//aabb2.Set( oneTwo, -3f ); asserts on negative radius, good
Vector2 fiveFive = new Vector2(5f, 5f);
Vector2 sixSeven = oneTwo + fiveFive;
Vector2 negFourThree = new Vector2(-4f, -3f);
Vector2 epsilon = new Vector2(kTol, kTol);
aabb2.Set(oneTwo, 5f);
XUtils.Assert(aabb2.Contains(oneTwo));
XUtils.Assert(aabb2.Contains(fiveFive));
XUtils.Assert(aabb2.Contains(negFourThree));
XUtils.Assert(!aabb2.Contains(TwentyTen));
XUtils.Assert(!aabb2.Contains(-TwentyTen));
XUtils.Assert(aabb2.Contains(Vector2.Zero));
XUtils.Assert(aabb2.Contains(negFourThree + epsilon));
XUtils.Assert(!aabb2.Contains(negFourThree - epsilon));
XUtils.Assert(aabb2.Contains(sixSeven - epsilon));
XUtils.Assert(!aabb2.Contains(sixSeven + epsilon));
aabb2.Set(Vector2.Zero);
XUtils.Assert(!aabb2.IsNonDegenerate());
aabb2.Add(Vector2.UnitX);
XUtils.Assert(!aabb2.IsNonDegenerate());
XUtils.Assert(aabb2.Contains(new Vector2(0.5f, 0f)));
aabb2.Add(oneTwo);
XUtils.Assert(aabb2.IsNonDegenerate());
XUtils.Assert(aabb2.Contains(new Vector2(0.5f, 1f)));
aabb2.Reset();
aabb2.Add(Vector2.Zero);
XUtils.Assert(aabb2.IsValid());
aabb2.Reset();
aabb2.Add(-fiveFive);
aabb2.Add(TwentyTen);
XUtils.AssertVal(aabb2.GetMin(), -fiveFive, kTol);
XUtils.AssertVal(aabb2.GetMax(), TwentyTen, kTol);
XUtils.AssertVal(aabb2.GetCenter(), new Vector2(7.5f, 2.5f), kTol);
XUtils.AssertVal(aabb2.GetRadius(), new Vector2(12.5f, 7.5f), kTol);
XUtils.AssertVal(aabb2.GetSize(), new Vector2(25f, 15f), kTol);
XUtils.AssertVal(aabb2.GetArea(), 375f, kTol);
aabb2.Reset();
aabb2.Add(Vector2.Zero);
aabb2.Add(oneTwo);
aabb2.ScaleWorld(4f);
XUtils.AssertVal(aabb2.GetArea(), 32f, kTol);
aabb2.Translate(fiveFive);
Vector2 center2 = new Vector2(7f, 9f);
XUtils.AssertVal(aabb2.GetArea(), 32f, kTol);
XUtils.AssertVal(aabb2.GetCenter(), center2, kTol);
XUtils.Assert(!aabb2.Contains(oneTwo));
XUtils.Assert(aabb2.Contains(new Vector2(6f, 8f)));
//aabb2.ScaleWorld( -1f ); asserts negative scalar, good
//aabb2.ScaleLocal( -50f ); asserts negative scalar, good
aabb2.ScaleLocal(0.25f);
XUtils.AssertVal(aabb2.GetCenter(), center2, kTol);
XUtils.AssertVal(aabb2.GetArea(), 2f, kTol);
XUtils.Assert(!aabb2.Contains(new Vector2(6f, 8f)));
XUtils.Assert(aabb2.Contains(center2));
aabb2.Reset();
aabb2.Add(Vector2.Zero);
aabb2.Add(oneTwo);
aabb2.Resize(new Vector2(0.1f, -0.3f));
XUtils.AssertVal(aabb2.GetArea(), 1.68f, kTol);
XUtils.Assert(!aabb2.Contains(Vector2.Zero));
XUtils.Assert(aabb2.Contains(new Vector2(-0.05f, 1.4f)));
}
// state/transition helper functions
private eContactChange UpdateTouchCount()
{
int num_touches = mTouches.Count();
eContactCount prev_contact_count = mContactCount;
eContactChange count_change = eContactChange.NoChange;
eContactCount new_count = num_touches == 5 ? eContactCount.Five :
num_touches == 4 ? eContactCount.Four :
num_touches > 2 ? eContactCount.Many :
num_touches > 1 ? eContactCount.Two :
num_touches > 0 ? eContactCount.One :
eContactCount.Zero;
if (prev_contact_count == eContactCount.Zero)
{
count_change = new_count == eContactCount.One ? eContactChange.ZeroToOne :
new_count == eContactCount.Two ? eContactChange.ZeroToTwo :
new_count == eContactCount.Many ? eContactChange.ZeroToMany :
new_count == eContactCount.Four ? eContactChange.AnyToFour :
new_count == eContactCount.Five ? eContactChange.AnyToFive :
eContactChange.NoChange;
}
else if (prev_contact_count == eContactCount.One)
{
count_change = new_count == eContactCount.Zero ? eContactChange.OneToZero :
new_count == eContactCount.Two ? eContactChange.OneToTwo :
new_count == eContactCount.Many ? eContactChange.OneToMany :
new_count == eContactCount.Four ? eContactChange.AnyToFour :
new_count == eContactCount.Five ? eContactChange.AnyToFive :
eContactChange.NoChange;
}
else if (prev_contact_count == eContactCount.Two)
{
count_change = new_count == eContactCount.Zero ? eContactChange.TwoToZero :
new_count == eContactCount.One ? eContactChange.TwoToOne :
new_count == eContactCount.Many ? eContactChange.TwoToMany :
new_count == eContactCount.Four ? eContactChange.AnyToFour :
new_count == eContactCount.Five ? eContactChange.AnyToFive :
eContactChange.NoChange;
}
else if (prev_contact_count == eContactCount.Many)
{
count_change = new_count == eContactCount.Zero ? eContactChange.ManyToZero :
new_count == eContactCount.One ? eContactChange.ManyToOne :
new_count == eContactCount.Two ? eContactChange.ManyToTwo :
new_count == eContactCount.Four ? eContactChange.AnyToFour :
new_count == eContactCount.Five ? eContactChange.AnyToFive :
eContactChange.NoChange;
}
else if (prev_contact_count == eContactCount.Four)
{
count_change = new_count == eContactCount.Four ? eContactChange.NoChange :
new_count == eContactCount.Zero ? eContactChange.FourToZero :
eContactChange.FourToAnyPositive;
}
else if (prev_contact_count == eContactCount.Five)
{
count_change = new_count == eContactCount.Five ? eContactChange.NoChange :
new_count == eContactCount.Zero ? eContactChange.FiveToZero :
eContactChange.FiveToAnyPositive;
}
else if (prev_contact_count == eContactCount.Unknown)
{
count_change = (new_count == eContactCount.Zero) ?
eContactChange.NoInitialContacts :
eContactChange.InitialContacts;
}
else
{
XUtils.Assert(false);
}
mContactCount = new_count;
return(count_change);
}
