///<summary>
/// Find the suitable bucket for the quad in the list of
/// buckets. If create is false and you don't find it in
/// the list, create the bucket and add it to the list.
/// If create is false and the bucket doesn't exist, return
/// null.
///</summary>
public QuadBucket FindBucketForQuad(QuadInfo quad, List <QuadBucket> buckets, bool create)
{
float z = quad.z;
int textureHandle = quad.texture.Handle;
int hashCode = (quad.clipRect != null ? quad.clipRect.GetHashCode() : 0);
QuadBucket quadBucket = null;
foreach (QuadBucket bucket in quadBuckets)
{
if (bucket.z == z && bucket.textureHandle == textureHandle && bucket.clipRectHash == hashCode)
{
quadBucket = bucket;
break;
}
}
if (create && quadBucket == null)
{
quadBucket = new QuadBucket(z, textureHandle, hashCode, this);
buckets.Add(quadBucket);
}
return(quadBucket);
}
///<summary>
/// The TextureAndClipRect value is interned, so we can just
/// look it up, and don't have to iterate.
///</summary>
public void AddQuad(QuadInfo quad)
{
QuadBucket quadBucket = FindBucketForQuad(quad, quadBuckets, true);
quadBucket.quads.Add(quad);
}