public CreateTileTask(TileProducer owner, int level, int tx, int ty, List <Slot> slot)
{
m_owner = owner;
m_level = level;
m_tx = tx;
m_ty = ty;
Slot = slot;
}
public void InsertProducer(int id, TileProducer producer)
{
if (m_producers.ContainsKey(id))
{
throw new InvalidOperationException("Producer id already inserted");
}
m_producers.Add(id, producer);
}
/// <summary>
/// Find all the quads in a terrain that need to be drawn. If a quad is a leaf and is visible it should
/// be drawn. If that quads tile is not ready the first ready parent is drawn
/// NOTE - because of the current set up all task are run on the frame they are generated so
/// the leaf quads will always have tiles that are ready to be drawn
/// </summary>
private void FindDrawableQuads(TerrainQuad quad, List <TileSampler> samplers)
{
quad.Drawable = false;
if (!quad.IsVisible)
{
quad.Drawable = true;
return;
}
if (quad.IsLeaf)
{
for (int i = 0; i < samplers.Count; ++i)
{
TileProducer p = samplers[i].Producer;
int l = quad.Level;
int tx = quad.Tx;
int ty = quad.Ty;
if (p.HasTile(l, tx, ty) && p.FindTile(l, tx, ty, false, true) == null)
{
return;
}
}
}
else
{
int nDrawable = 0;
for (int i = 0; i < 4; ++i)
{
FindDrawableQuads(quad.GetChild(i), samplers);
if (quad.GetChild(i).Drawable)
{
++nDrawable;
}
}
if (nDrawable < 4)
{
for (int i = 0; i < samplers.Count; ++i)
{
TileProducer p = samplers[i].Producer;
int l = quad.Level;
int tx = quad.Tx;
int ty = quad.Ty;
if (p.HasTile(l, tx, ty) && p.FindTile(l, tx, ty, false, true) == null)
{
return;
}
}
}
}
quad.Drawable = true;
}
