public SpriteRenderQueue(UIRenderQueueConfiguration config, TextManager textManager, FontManager fontManager)
{
var maxVertices = config.MaxSprites * 4 + config.MaxNinePatchSprites * 4 * 9 + config.MaxTextBlocks * 4 * 100; // 100 characters per block (TODO: change this at some point)
var maxIndices = maxVertices * 6;
_spriteBatch = new SpriteBatch(config.MaxSprites);
_nineSliceSprite = new NineSliceSpriteBatch(config.MaxNinePatchSprites);
_textBatch = new TextBatch(config.MaxTextBlocks, textManager, fontManager);
_vertices = MemoryUtils.AllocateBlock <SpriteVertex>(maxVertices);
_elements = new SpriteElement[100]; // TODO: Hardcoded for now, not sure what an optimal number would be. UIElements will be created for each texture change
_sortable = new SortableRenderable[1_000]; // TODO: hardcoded for now. This is the amount of "items" added to the queue. 1 for each text, sprite or nine patch.
/// <summary>
/// Performs batch drawing of the queued 3D texts and lines.
/// </summary>
public static void Flush(bool clear)
{
if (queued3DTexts == null)
{
return;
}
if (textBatch == null)
{
textBatch = new TextBatch(State.Device);
}
if (queued3DTexts.Count > 0)
{
textBatch.ViewProjection = State.ViewMatrix * State.ProjectionMatrix;
int numIndices = 0;
Text3DInfo info;
for (int i = 0; i < queued3DTexts.Count; i++)
{
info = queued3DTexts[i];
if (numIndices == 0)
{
textBatch.Begin();
}
textBatch.DrawText(info.text3d, info.transform, info.color);
numIndices += info.text3d.Indices.Length;
if (numIndices > MAX_NUM_INDICES)
{
textBatch.End();
numIndices = 0;
}
}
if (numIndices != 0)
{
textBatch.End();
}
if (clear)
{
queued3DTexts.Clear();
}
}
}
