public override void RemoveChild(CCNode child, bool cleanup)
{
if (child == null)
{
return;
}
Debug.Assert(child is CCParticleSystem,
"CCParticleBatchNode only supports CCQuadParticleSystems as children");
Debug.Assert(Children.Contains(child), "CCParticleBatchNode doesn't contain the sprite. Can't remove it");
CCParticleSystem pChild = (CCParticleSystem)child;
// remove child helper
TextureAtlas.RemoveQuadsAtIndex(pChild.AtlasIndex, pChild.TotalParticles);
// after memmove of data, empty the quads at the end of array
TextureAtlas.FillWithEmptyQuadsFromIndex(TextureAtlas.TotalQuads, pChild.TotalParticles);
// particle could be reused for self rendering
pChild.BatchNode = null;
// Need to remove child from list of children before we update atlas indices
base.RemoveChild(pChild, cleanup);
UpdateAllAtlasIndexes();
}
void InsertChild(CCParticleSystem pSystem, int index, int tag)
{
pSystem.AtlasIndex = index;
if (TextureAtlas.TotalQuads + pSystem.TotalParticles > TextureAtlas.Capacity)
{
IncreaseAtlasCapacityTo(TextureAtlas.TotalQuads + pSystem.TotalParticles);
// after a realloc empty quads of textureAtlas can be filled with gibberish (realloc doesn't perform calloc), insert empty quads to prevent it
TextureAtlas.FillWithEmptyQuadsFromIndex(TextureAtlas.Capacity - pSystem.TotalParticles,
pSystem.TotalParticles);
}
// make room for quads, not necessary for last child
if (pSystem.AtlasIndex + pSystem.TotalParticles != TextureAtlas.TotalQuads)
{
TextureAtlas.MoveQuadsFromIndex(index, index + pSystem.TotalParticles);
}
// increase totalParticles here for new particles, update method of particlesystem will fill the quads
TextureAtlas.IncreaseTotalQuadsWith(pSystem.TotalParticles);
UpdateAllAtlasIndexes();
}
