/// <summary>
/// This function adjust the current first element index, the current offsets and the current visual children collection to have a valid stack display.
/// </summary>
private void AdjustOffsetsAndVisualChildren(float desiredNewScrollPosition)
{
offset = Vector3.Zero;
var axis = (int)Orientation;
if (ItemVirtualizationEnabled)
{
UpdateScrollPosition(desiredNewScrollPosition);
UpdateAndArrangeVisibleChildren();
}
else // no item virtualization
{
if (elementBounds.Count < 2) // no children
{
scrollPosition = 0;
offset = Vector3.Zero;
}
else
{
var viewportSize = Viewport[axis];
var inferiorBound = elementBounds[indexElementMaxScrolling];
var superiorBound = elementBounds[indexElementMaxScrolling + 1];
var boundDifference = superiorBound - inferiorBound;
// calculate the maximum scroll position
float maxScrollPosition = indexElementMaxScrolling;
if (boundDifference > MathUtil.ZeroTolerance)
{
maxScrollPosition += Math.Min(1 - MathUtil.ZeroTolerance, (extent[axis] - viewportSize - inferiorBound) / boundDifference);
}
// set a valid scroll position
scrollPosition = Math.Max(0, Math.Min(maxScrollPosition, desiredNewScrollPosition));
// add the first element start bound as initial scroll offset
var firstElementIndex = (int)Math.Floor(scrollPosition);
offset[axis] = -elementBounds[firstElementIndex];
// update the visible element list for hit tests
visibleChildren.Clear();
for (var i = firstElementIndex; i < Children.Count; i++)
{
visibleChildren.Add(Children[i]);
if (elementBounds[i + 1] - elementBounds[firstElementIndex + 1] > viewportSize)
{
break;
}
}
}
}
// adjust the offset of the children
var scrollPositionIndex = (int)Math.Floor(scrollPosition);
var scrollPositionRemainder = scrollPosition - scrollPositionIndex;
offset[axis] -= scrollPositionRemainder * GetSafeChildSize(scrollPositionIndex, axis);
// force the scroll owner to update the scroll info
ScrollOwner?.InvalidateScrollInfo();
}
public void CopyToWorks()
{
var arr = Enumerable.Range(0, 10).ToArray();
var c = new FastCollection<int>();
c.CopyTo(arr, 0);
Assert.True(arr.SequenceEqual(Enumerable.Range(0, 10)));
c.Add(5);
c.CopyTo(arr, 0);
Assert.Equal(5, arr[0]);
Assert.True(arr.Skip(1).SequenceEqual(Enumerable.Range(1, 9)));
c.CopyTo(arr, 1);
Assert.Equal(5, arr[0]);
Assert.Equal(5, arr[1]);
Assert.True(arr.Skip(2).SequenceEqual(Enumerable.Range(2, 8)));
c.Add(6);
c.CopyTo(arr, 0);
Assert.Equal(5, arr[0]);
Assert.Equal(6, arr[1]);
Assert.True(arr.Skip(2).SequenceEqual(Enumerable.Range(2, 8)));
c.CopyTo(arr, 1);
Assert.Equal(5, arr[0]);
Assert.Equal(5, arr[1]);
Assert.Equal(6, arr[2]);
Assert.True(arr.Skip(3).SequenceEqual(Enumerable.Range(3, 7)));
}
/// <summary>
/// Updates all the <see cref="TransformComponent.WorldMatrix"/>.
/// </summary>
/// <param name="context">The render context.</param>
public override void Draw(RenderContext context)
{
notSpecialRootComponents.Clear();
lock (TransformationRoots)
{
foreach (var t in TransformationRoots)
{
if (t.UpdateImmobilePosition || t.Immobile != IMMOBILITY.EverythingImmobile)
{
notSpecialRootComponents.Add(t);
}
}
}
// Update scene transforms
// TODO: Entity processors should not be aware of scenes
var sceneInstance = EntityManager as SceneInstance;
if (sceneInstance?.RootScene != null)
{
UpdateTransfromationsRecursive(sceneInstance.RootScene);
}
// Special roots are already filtered out
UpdateTransformations(notSpecialRootComponents);
}
public void AddRemoveWorks()
{
var c = new FastCollection<int> { 1, 2, 3, 4, 5 };
Assert.True(c.SequenceEqual(new[] { 1, 2, 3, 4, 5 }));
Assert.Equal(5, c.Count);
var originalCapacity = c.Capacity;
Assert.InRange(originalCapacity, 5, int.MaxValue);
Assert.True(c.Remove(5));
AssertEquals(c, new[] { 1, 2, 3, 4 });
Assert.InRange(c.Capacity, 4, originalCapacity);
c.RemoveAt(3);
AssertEquals(c, new[] { 1, 2, 3 });
Assert.InRange(c.Capacity, 3, originalCapacity);
Assert.True(c.Remove(1));
AssertEquals(c, new[] { 2, 3 });
Assert.InRange(c.Capacity, 2, originalCapacity);
Assert.False(c.Remove(1));
var oneEl = c[1];
c.RemoveAt(0);
Assert.Equal(oneEl, c[0]);
Assert.Equal(1, c.Count);
c.Add(4);
AssertEquals(c, new[] { oneEl, 4 });
c.Clear();
Assert.True(c.SequenceEqual(new int[0]));
Assert.Equal(0, c.Count);
}
public void SetterWorks()
{
var c = new FastCollection<int> { 1 };
Assert.Equal(1, c[0]);
Assert.True(c.Contains(1));
Assert.False(c.Contains(2));
c[0] = 2;
Assert.Equal(2, c[0]);
Assert.False(c.Contains(1));
Assert.True(c.Contains(2));
c.Add(3);
Assert.False(c.Contains(1));
Assert.True(c.Contains(2));
Assert.True(c.Contains(3));
Assert.False(c.Contains(4));
c[c.IndexOf(3)] = 4;
Assert.False(c.Contains(1));
Assert.True(c.Contains(2));
Assert.False(c.Contains(3));
Assert.True(c.Contains(4));
c[c.IndexOf(4)] = 2;
Assert.False(c.Contains(1));
Assert.True(c.Contains(2));
Assert.False(c.Contains(3));
Assert.False(c.Contains(4));
Assert.Equal(2, c.Count);
}
public void AddTaken(LocalTable <T> borrower, T tuple)
{
/*if (_takenCount == _taken.Length)
* {
* Array.Resize(ref _taken, _takenCount * 2);
* }
* _taken[_takenCount++] = new TakenTuple<T>(borrower, tuple);*/
_taken.Add(new TakenTuple <T>(borrower, tuple));
}
/// <summary>
/// Append <paramref name="gameEvent"/> to the log.
/// </summary>
/// <param name="gameEvent">New event</param>
public void Log(GameEvent gameEvent)
{
lock (eventLog)
{
gameEvent.TimeStamp = Game.UpdateTime.Total;
eventLog.Add(gameEvent);
this.LogDebug("Logged new event: {eventType}.", gameEvent.GetType().Name);
}
}
public void Add()
{
IList b = new List <int>();
var fc = new FastCollection <IList>();
fc.Add(b, 2);
Assert.AreEqual(1, b.Count);
}
/// <summary>
/// Updates all the <see cref="TransformComponent.WorldMatrix"/>.
/// </summary>
/// <param name="context"></param>
public override void Draw(RenderContext context)
{
notSpecialRootComponents.Clear();
foreach (var t in TransformationRoots)
{
notSpecialRootComponents.Add(t);
}
// Special roots are already filtered out
UpdateTransformations(notSpecialRootComponents);
}
/// <summary>
/// Updates all the <see cref="TransformationComponent.WorldMatrix"/>.
/// </summary>
/// <param name="time"></param>
public override void Draw(GameTime time)
{
notSpecialRootComponents.Clear();
foreach (var t in transformationRoots)
{
if (!t.isSpecialRoot)
{
notSpecialRootComponents.Add(t);
}
}
// Special roots are already filtered out
UpdateTransformations(notSpecialRootComponents, false);
}
public void Generic_Remove()
{
IList <int> b = new List <int>();
var fc = new FastCollection <IList <int>, int>();
fc.Add(b, 2);
Assert.AreEqual(1, b.Count);
fc.Remove(b, 2);
Assert.AreEqual(0, b.Count);
}
internal void UpdateTransformations(FastCollection <TransformComponent> transformationComponents)
{
Dispatcher.ForEach(transformationComponents, UpdateTransformationAndChildren);
// Re-update model node links to avoid one frame delay compared reference model (ideally entity should be sorted to avoid this in future).
if (ModelNodeLinkProcessor != null)
{
modelNodeLinkComponents.Clear();
foreach (var modelNodeLink in ModelNodeLinkProcessor.ModelNodeLinkComponents)
{
modelNodeLinkComponents.Add(modelNodeLink.Entity.Transform);
}
Dispatcher.ForEach(modelNodeLinkComponents, UpdateTransformationAndChildren);
}
}
public void ContainsWorks()
{
var c = new FastCollection<int> { 1, 2, 3 };
Assert.True(c.Contains(1));
Assert.True(c.Contains(2));
Assert.True(c.Contains(3));
Assert.False(c.Contains(4));
c.Remove(1);
Assert.False(c.Contains(1));
Assert.True(c.Contains(2));
Assert.True(c.Contains(3));
Assert.False(c.Contains(4));
c.Clear();
Assert.False(c.Contains(1));
Assert.False(c.Contains(2));
Assert.False(c.Contains(3));
c.Add(3);
Assert.False(c.Contains(1));
Assert.False(c.Contains(2));
Assert.True(c.Contains(3));
}
public void IndexOfWorks()
{
var c = new FastCollection<int> { 1, 2, 3 };
Assert.Equal(1, c[c.IndexOf(1)]);
Assert.Equal(2, c[c.IndexOf(2)]);
Assert.Equal(3, c[c.IndexOf(3)]);
Assert.Equal(-1, c.IndexOf(4));
c.Remove(1);
Assert.Equal(2, c[c.IndexOf(2)]);
Assert.Equal(3, c[c.IndexOf(3)]);
Assert.Equal(-1, c.IndexOf(1));
c.Clear();
Assert.Equal(-1, c.IndexOf(1));
Assert.Equal(-1, c.IndexOf(2));
Assert.Equal(-1, c.IndexOf(3));
c.Add(3);
Assert.Equal(-1, c.IndexOf(1));
Assert.Equal(-1, c.IndexOf(2));
Assert.Equal(0, c.IndexOf(3));
Assert.Equal(3, c[0]);
}
private void UpdateAndArrangeVisibleChildren()
{
var axis = (int)Orientation;
// cache the initial list of children
cachedVisibleChildren.Clear();
foreach (var child in visibleChildren)
{
cachedVisibleChildren.Add(child);
}
// reset the list
visibleChildren.Clear();
// remove all the current visual children
while (VisualChildrenCollection.Count > 0)
{
SetVisualParent(VisualChildrenCollection[0], null);
}
// determine first element index and size
var elementIndex = (int)Math.Floor(scrollPosition);
var firstChildSize = GetSafeChildSize(elementIndex, axis);
// create the next visual children collection to display
var currentSize = -(scrollPosition - elementIndex) * firstChildSize;
while (elementIndex < Children.Count && currentSize <= Viewport[axis])
{
currentSize += GetSafeChildSize(elementIndex, axis);
visibleChildren.Add(Children[elementIndex]);
SetVisualParent(Children[elementIndex], this);
++elementIndex;
}
// reorder visual children by z-Order
VisualChildrenCollection.Sort(PanelChildrenSorter);
// re-arrange the children if they changed
if (visibleChildren.Count > 0)
{
var shouldRearrangeChildren = cachedVisibleChildren.Count == 0 || cachedVisibleChildren.Count != visibleChildren.Count;
// determine if the two list are equals
if (!shouldRearrangeChildren)
{
for (int i = 0; i < visibleChildren.Count; i++)
{
if (cachedVisibleChildren[i] != visibleChildren[i])
{
shouldRearrangeChildren = true;
break;
}
}
}
if (shouldRearrangeChildren)
{
ArrangeChildren();
}
}
}
public void Add(T tuple)
{
_storage.Add(tuple);
}