protected int BatchNeighbours()
{
int mNumBatchedParticles = 0;
int last = Parent.GetChildIndex(this);
while (++last < Parent.NumChildren)
{
SparrowRenderer nextPs = Parent.GetChild(last) as SparrowRenderer;
if (nextPs != null && !nextPs.IsStateChange(_mTexture.Base, TexSmoothing, BlendMode, _mFilter, PremultiplyAlpha, _mNumParticles))
{
if (nextPs._mNumParticles > 0)
{
int targetIndex = (_mNumParticles + mNumBatchedParticles) * 32; // 4 * 8
int sourceIndex = 0;
int sourceEnd = nextPs._mNumParticles * 32; // 4 * 8
Array.Resize(ref _vertexes, targetIndex + sourceEnd);
while (sourceIndex < sourceEnd)
{
_vertexes[targetIndex++] = nextPs._vertexes[sourceIndex++];
}
mNumBatchedParticles += nextPs._mNumParticles;
nextPs._mBatched = true;
//disable filter of batched system temporarily
nextPs.Filter = null;
}
}
else
{
break;
}
}
return(mNumBatchedParticles);
}
private void CreateRendererIfNeeded()
{
if (_renderer == null)
{
_renderer = new SparrowRenderer();
_renderer.BlendMode = _blendMode;
_renderer.TexSmoothing = _smoothing;
_renderer.PremultiplyAlpha = _premultiplyAlpha;
}
}
