public void updateQuadInRenderList(QuickGUIQuad q)
{
// minor optimization, where only the quad's dimensions have changed.
if (!q.zOrderChanged() && !q.textureChanged())
{
foreach (QuickGUIQuad iq in mRenderList)
{
if (iq.getID() == q.getID())
{
// update all vertices
for (int vertIndex = 0; vertIndex < QuickGUIQuad.VERTEX_PER_QUAD; ++vertIndex)
{
iq.setVertex(vertIndex, q.getVertex(vertIndex));
}
q._notifyChangesHandled();
break;
}
}
}
// otherwise its easier/more efficient to remove the quad and re-add it into the list.
else
{
removeQuadFromRenderList(q);
addQuadToRenderList(q);
}
mRenderListDirty = true;
}
/*
* Quads are kept sorted by zOrder, and within zOrder, by Texture. In this way, we will
* minimized batches.
*/
public void addQuadToRenderList(QuickGUIQuad q)
{
bool added = false;
for (int it = 0; it < mRenderList.Count; it++)
{
QuickGUIQuad iq = mRenderList[it];
// quad is already in the list! update quad instead
if (iq.getID() == q.getID())
{
updateQuadInRenderList(q);
added = true;
break;
}
// zOrders are the same, now we want to group by texture
if (iq.getZOrder() == q.getZOrder())
{
// iterate until texture name found, or end of zOrder grouping
while (!iq.getTextureName().Equals(iq.getTextureName()) && (iq.getZOrder() == q.getZOrder()) && (it < mRenderList.Count))
{
++it;
}
// it is pointing to the end of the list, a quad with the same texture name, or a quad of another zOrder
mRenderList.Insert(it, q);
q._notifyChangesHandled();
added = true;
}
}
if (!added)
{
mRenderList.Remove(q);
}
mRenderListDirty = true;
}