public PagedWorldSection CreateSection(PageStrategy strategy, SceneManager sceneMgr, string sectionName)
{
PagedWorldSection ret = CreateSection(sceneMgr, "General", sectionName);
ret.Strategy = strategy;
return(ret);
}
public bool Load(StreamSerializer stream)
{
if (stream.ReadChunkBegin(CHUNK_ID, CHUNK_VERSION, "PageWorld") == null)
{
return(false);
}
//name
stream.Read(out this.mName);
//sections
while (stream.NextChunkId == PagedWorld.CHUNK_SECTIONDECLARATION_ID)
{
stream.ReadChunkBegin();
string sectionType, sectionName;
stream.Read(out sectionType);
stream.Read(out sectionName);
stream.ReadChunkEnd(CHUNK_SECTIONDECLARATION_ID);
// Scene manager will be loaded
PagedWorldSection sec = CreateSection(null, sectionType, sectionName);
bool sectionOk = sec.Load(stream);
if (!sectionOk)
{
DestroySection(sec);
}
}
stream.ReadChunkEnd(CHUNK_ID);
return(true);
}
public PagedWorldSection GetSection(string name)
{
PagedWorldSection section = null;
this.mSections.TryGetValue(name, out section);
return(section);
}
public override void NotifyCamera(Camera cam, PagedWorldSection section)
{
var stratData = (Grid2DPageStrategyData)section.StrategyData;
Vector3 pos = cam.DerivedPosition;
Vector2 gridpos = Vector2.Zero;
stratData.ConvertWorldToGridSpace(pos, ref gridpos);
int x, y;
stratData.DetermineGridLocation(gridpos, out x, out y);
Real loadRadius = stratData.LoadRadiusInCells;
Real holdRadius = stratData.HoldRadiusInCells;
//scan the whole hold range
Real fxmin = (Real)x - holdRadius;
Real fxmax = (Real)x + holdRadius;
Real fymin = (Real)y - holdRadius;
Real fymax = (Real)y + holdRadius;
int xmin = stratData.CellRangeMinX;
int xmax = stratData.CellRangeMaxX;
int ymin = stratData.CellRangeMinY;
int ymax = stratData.CellRangeMaxY;
// Round UP max, round DOWN min
xmin = fxmin < xmin ? xmin : (int)System.Math.Floor(fxmin);
xmax = fxmax > xmax ? xmax : (int)System.Math.Ceiling(fxmax);
ymin = fymin < ymin ? ymin : (int)System.Math.Floor(fymin);
ymax = fymax > ymax ? ymax : (int)System.Math.Ceiling(fymax);
// the inner, active load range
fxmin = (Real)x - loadRadius;
fxmax = (Real)x + loadRadius;
fymin = (Real)y - loadRadius;
fymax = (Real)y + loadRadius;
// Round UP max, round DOWN min
int loadxmin = fxmin < xmin ? xmin : (int)System.Math.Floor(fxmin);
int loadxmax = fxmax > xmax ? xmax : (int)System.Math.Ceiling(fxmax);
int loadymin = fymin < ymin ? ymin : (int)System.Math.Floor(fymin);
int loadymax = fymax > ymax ? ymax : (int)System.Math.Ceiling(fymax);
for (int cy = ymin; cy <= ymax; ++cy)
{
for (int cx = xmin; cx <= xmax; ++cx)
{
PageID pageID = stratData.CalculatePageID(cx, cy);
if (cx >= loadxmin && cx <= loadxmax && cy >= loadymin && cy <= loadymax)
{
// in the 'load' range, request it
section.LoadPage(pageID);
}
else
{
// in the outer 'hold' range, keep it but don't actively load
section.HoldPage(pageID);
}
// other pages will by inference be marked for unloading
}
}
}
/// <summary>
///
/// </summary>
/// <param name="cam"></param>
/// <param name="section"></param>
public override void NotifyCamera(Camera cam, PagedWorldSection section)
{
Grid2DPageStrategyData stratData = (Grid2DPageStrategyData)section.StrategyData;
Vector3 pos = cam.DerivedPosition;
Vector2 gridpos = Vector2.Zero;
stratData.ConvetWorldToGridSpace(pos, ref gridpos);
int row = 0, col = 0;
stratData.DetermineGridLocation(gridpos, ref row, ref col);
float loadRadius = stratData.LoadRadiusInCells;
float holdRadius = stratData.HoldRadiusInCells;
//scan the whole hold range
float frowmin = (float)row - holdRadius;
float frowmax = (float)row + holdRadius;
float fcolmin = (float)col - holdRadius;
float fcolmax = (float)col + holdRadius;
int clampRowAt = stratData.CellCountVert - 1;
int clampColAt = stratData.CellCountHorz - 1;
//round UP max, round DOWN min
int rowmin = frowmin < 0 ? 0 : (int)System.Math.Floor(frowmin);
int rowmax = frowmax > clampRowAt ? clampRowAt : (int)System.Math.Ceiling(frowmax);
int colmin = fcolmin < 0 ? 0 : (int)System.Math.Floor(fcolmin);
int colmax = fcolmax > clampColAt ? clampColAt : (int)System.Math.Ceiling(fcolmax);
// the inner, active load range
frowmin = (float)row - loadRadius;
frowmax = (float)row + loadRadius;
fcolmin = (float)col - loadRadius;
fcolmax = (float)col + loadRadius;
//round UP max, round DOWN min
int loadrowmin = frowmin < 0 ? 0 : (int)System.Math.Floor(frowmin);
int loadrowmax = frowmax > clampRowAt ? clampRowAt : (int)System.Math.Ceiling(frowmax);
int loadcolmin = fcolmin < 0 ? 0 : (int)System.Math.Floor(fcolmin);
int loadcolmax = fcolmax > clampColAt ? clampColAt : (int)System.Math.Ceiling(fcolmax);
for (int r = rowmin; r <= rowmax; ++r)
{
for (int c = colmin; c <= colmax; ++c)
{
PageID pageID = stratData.CalculatePageID(r, c);
if (r >= loadrowmin && r <= loadrowmax && c >= loadcolmin && c <= loadcolmax)
{
// int the 'load' range, request it
section.LoadPage(pageID);
}
else
{
// int the outer 'hold' range, keep it but don't actively load.
section.HoldPage(pageID);
}
// other paged will by inference be marked for unloading
}
}
}
internal bool UnloadProcedualPage(Page page, PagedWorldSection section)
{
bool generated = false;
if (this.mPageProvider != null)
{
generated = this.mPageProvider.UnloadProcedualPage(page, section);
}
return(generated);
}
public override PageID GetPageID(Vector3 worldPos, PagedWorldSection section)
{
var stratData = (Grid2DPageStrategyData)section.StrategyData;
Vector2 gridpos = Vector2.Zero;
stratData.ConvertWorldToGridSpace(worldPos, ref gridpos);
int x, y;
stratData.DetermineGridLocation(gridpos, out x, out y);
return(stratData.CalculatePageID(x, y));
}
public Page(PageID pageID, PagedWorldSection parent)
: base()
{
this.mID = pageID;
this.mParent = parent;
WorkQueue wq = Root.Instance.WorkQueue;
this.workQueueChannel = wq.GetChannel("Axiom/Page");
wq.AddRequestHandler(this.workQueueChannel, this);
wq.AddResponseHandler(this.workQueueChannel, this);
Touch();
}
public void DestroyWorldSection(ref PagedWorldSection coll)
{
PagedWorldSectionFactory fact = GetWorldSectionFactory(coll.Type);
if (fact != null)
{
fact.DestroyInstance(ref coll);
}
else
{
coll.SafeDispose(); // normally a safe fallback
}
}
internal StreamSerializer ReadPageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (this.mPageProvider != null)
{
ser = this.mPageProvider.ReadPageStream(pageId, section);
}
if (ser == null)
{
ser = this.mManager.ReadPageStream(pageId, section);
}
return(ser);
}
public StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (this.mPageProvider != null)
{
ser = this.mPageProvider.WritePageStream(pageId, section);
}
if (ser == null)
{
ser = this.mManager.WritePageStream(pageId, section);
}
return(ser);
}
internal virtual bool UnPrepareProcedualPage(Page page, PagedWorldSection section)
{
bool generated = false;
if (this.mPageProvider != null)
{
generated = this.mPageProvider.UnPrepareProcedualPage(page, section);
}
if (!generated)
{
generated = this.mManager.UnPrepareProcedualPage(page, section);
}
return(generated);
}
internal StreamSerializer ReadPageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (this.mPageProvider != null)
{
ser = this.mPageProvider.ReadPageStream(pageId, section);
}
if (ser == null)
{
// use default implementation
string nameStr = string.Format("{0}_{1}_{2}.page", section.World.Name, section.Name, pageId);
var stream = ResourceGroupManager.Instance.OpenResource(nameStr);
ser = new StreamSerializer(stream);
}
return(ser);
}
internal StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (this.mPageProvider != null)
{
ser = this.mPageProvider.WritePageStream(pageId, section);
}
if (ser == null)
{
// use default implementation
string nameStr = string.Format("{0}_{1}_{2}.page", section.World.Name, section.Name, pageId);
// create file, overwrite if necessary
var stream = ResourceGroupManager.Instance.CreateResource(nameStr, this.mPageResourceGroup, true);
ser = new StreamSerializer(stream);
}
return(ser);
}
public PagedWorldSection CreateSection(SceneManager sceneMgr, string typeName, string sectionName)
{
var theName = sectionName;
if (theName == string.Empty)
{
do
{
theName = this.mSectionNameGenerator.GetNextUniqueName();
}while (this.mSections.ContainsKey(theName));
}
else if (this.mSections.ContainsKey(theName))
{
throw new AxiomException("World section named '{0}' already exists! PagedWorld.CreateSection", theName);
}
PagedWorldSection ret = null;
if (typeName == "General")
{
ret = new PagedWorldSection(theName, this, sceneMgr);
}
else
{
PagedWorldSectionFactory fact = this.mManager.GetWorldSectionFactory(typeName);
if (fact == null)
{
throw new AxiomException("World section type '{0}' does not exist! PagedWorld::createSection", typeName);
}
ret = fact.CreateInstance(theName, this, sceneMgr);
}
this.mSections.Add(theName, ret);
return(ret);
}
public abstract void DestroyInstance(ref PagedWorldSection p);
public virtual void FrameEnd( Real timeElapsed, PagedWorldSection section )
{
}
public override bool UnPrepareProcedualPage( Page page, PagedWorldSection section ) { return true; }
/// <summary>
///
/// </summary>
/// <param name="pageId"></param>
/// <param name="section"></param>
/// <returns></returns>
public StreamSerializer ReadPageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (mPageProvider != null)
ser = mPageProvider.ReadPageStream(pageId, section);
if (ser == null)
{
// use default implementation
string nameStr = string.Empty;
nameStr += section.World.Name + "_" + section.Name + "_" + pageId.Value + ".page";
Stream stream = ResourceGroupManager.Instance.OpenResource(nameStr);
ser = new StreamSerializer(stream);
}
return ser;
}
/// <summary>
/// Load a Page, for a given PagedWorldSection.
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <param name="forceSync"></param>
public void LoadPage(Page page, PagedWorldSection section, bool forceSync)
{
// Prepare in the background
Request req = new Request(RequestType.PreparePage, page, section);
AddBackgroundRequest(req, forceSync);
// load will happen in the main thread once preparation is complete
}
public Request(RequestType rt, Page p, PagedWorldSection s)
{
RequestType = rt;
Page = p;
Section = s;
}
public virtual void FrameStart(Real timeSinceLastFrame, PagedWorldSection section)
{
}
/// <summary>
///
/// </summary>
/// <param name="pageId"></param>
/// <param name="section"></param>
/// <returns></returns>
public StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
return null;
}
public virtual void NotifyCamera(Camera cam, PagedWorldSection section)
{
}
public abstract PageID GetPageID(Vector3 worldPos, PagedWorldSection section);
internal StreamSerializer WritePageStream( PageID pageId, PagedWorldSection section )
{
StreamSerializer ser = null;
if ( this.mPageProvider != null )
{
ser = this.mPageProvider.WritePageStream( pageId, section );
}
if ( ser == null )
{
// use default implementation
string nameStr = string.Format( "{0}_{1}_{2}.page", section.World.Name, section.Name, pageId );
// create file, overwrite if necessary
var stream = ResourceGroupManager.Instance.CreateResource( nameStr, this.mPageResourceGroup, true );
ser = new StreamSerializer( stream );
}
return ser;
}
internal bool UnloadProcedualPage( Page page, PagedWorldSection section )
{
bool generated = false;
if ( this.mPageProvider != null )
{
generated = this.mPageProvider.UnloadProcedualPage( page, section );
}
return generated;
}
public virtual void NotifyCamera( Camera cam, PagedWorldSection section )
{
}
/// <summary>
///
/// </summary>
/// <param name="pageId"></param>
/// <param name="section"></param>
/// <returns></returns>
public StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (mPageProvider != null)
ser = mPageProvider.WritePageStream(pageId, section);
if (ser == null)
{
// use default implementation
string nameStr = string.Empty;
nameStr += section.World.Name + "_" + section.Name + "_" + pageId.Value + ".page";
// create file, overwrite if necessary
}
throw new NotImplementedException();
}
public virtual void FrameEnd(Real timeElapsed, PagedWorldSection section)
{
}
/// <summary>
/// Give a provider the opportunity to unprepare page content procedurally.
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <returns></returns>
public bool UnPrepareProcedualPage(Page page, PagedWorldSection section)
{
return false;
}
public Page( PageID pageID, PagedWorldSection parent )
: base()
{
this.mID = pageID;
this.mParent = parent;
WorkQueue wq = Root.Instance.WorkQueue;
this.workQueueChannel = wq.GetChannel( "Axiom/Page" );
wq.AddRequestHandler( this.workQueueChannel, this );
wq.AddResponseHandler( this.workQueueChannel, this );
Touch();
}
/// <summary>
/// Load a Page, for a given PagedWorldSection.
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
public void LoadPage(Page page, PagedWorldSection section)
{
LoadPage(page, section, false);
}
public abstract void DestroyInstance( ref PagedWorldSection p );
/// <summary>
/// Dispose of a page
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <param name="forceSync"></param>
public void UnLoadPage(Page page, PagedWorldSection section, bool forceSync)
{
// unload in main thread, then unprepare in background
Request req = new Request(RequestType.UnloadPage, page, section);
AddRenderRequest(req, forceSync);
}
/// <summary>
/// Create a new section of the world.
/// </summary>
/// <param name="strategyName"></param>
/// <param name="sceneMgr"></param>
/// <param name="sectionName"></param>
/// <returns></returns>
PagedWorldSection CreateSection(PageStrategy strategy, SceneManager sceneMgr,
string sectionName)
{
string theName = sectionName;
if (theName == string.Empty)
{
do
{
theName = mSectionNameGenerator.GetNextUniqueName();
}
while (!mSections.ContainsKey(theName));
}
else if (mSections.ContainsKey(theName))
{
throw new Exception("World section named '" + theName + "' allready exists!" +
"[PageWorld.CreateSection]");
}
PagedWorldSection ret = new PagedWorldSection(theName, this, strategy, sceneMgr);
mSections.Add(theName, ret);
return ret;
}
public void DestroyWorldSection( ref PagedWorldSection coll )
{
PagedWorldSectionFactory fact = GetWorldSectionFactory( coll.Type );
if ( fact != null )
{
fact.DestroyInstance( ref coll );
}
else
{
coll.SafeDispose(); // normally a safe fallback
}
}
/// <summary>
///
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <returns></returns>
public virtual bool UnPrepareProcedualPage(Page page, PagedWorldSection section)
{
bool generated = false;
if (mPageProvider != null)
generated = mPageProvider.UnPrepareProcedualPage(page, section);
if (!generated)
generated = mManger.UnPrepareProcedualPage(page, section);
return generated;
}
/// <summary>
/// Load world data from a serialiser (returns true if successful)
/// </summary>
/// <param name="stream"></param>
public bool Load(StreamSerializer stream)
{
if (stream.ReadChunkBegin(CHUNK_ID, CHUNK_VERSION, "PageWorld") == null)
return false;
//name
stream.Read(out mName);
//sections
while (stream.NextChunkId == PagedWorldSection.CHUNK_ID)
{
PagedWorldSection sec = new PagedWorldSection(this);
bool sectionOk = sec.Load(stream);
if (sectionOk)
mSections.Add(sec.Name, sec);
else
{
sec = null;
break;
}
}
stream.ReadChunkEnd(CHUNK_ID);
return true;
}
public void DestroySection(PagedWorldSection section)
{
DestroySection(section.Name);
}
/// <summary>
///
/// </summary>
/// <param name="section"></param>
public void DestroySection(PagedWorldSection section)
{
DestroySection(section.Name);
}
internal StreamSerializer ReadPageStream( PageID pageId, PagedWorldSection section )
{
StreamSerializer ser = null;
if ( this.mPageProvider != null )
{
ser = this.mPageProvider.ReadPageStream( pageId, section );
}
if ( ser == null )
{
// use default implementation
string nameStr = string.Format( "{0}_{1}_{2}.page", section.World.Name, section.Name, pageId );
var stream = ResourceGroupManager.Instance.OpenResource( nameStr );
ser = new StreamSerializer( stream );
}
return ser;
}
/// <summary>
/// Get a serialiser set up to write Page data for the given PageID.
/// </summary>
/// <param name="pageId"></param>
/// <param name="section"></param>
/// <returns></returns>
public StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
StreamSerializer ser = null;
if (mPageProvider != null)
ser = mPageProvider.WritePageStream(pageId, section);
if (ser == null)
ser = mManger.WritePageStream(pageId, section);
return ser;
}
public virtual void FrameStart( Real timeSinceLastFrame, PagedWorldSection section )
{
}
/// <summary>
/// Internal method to notify a page that it is attached
/// </summary>
/// <param name="parent"></param>
public void NotifyAttached(PagedWorldSection parent)
{
if (parent == null && mParent != null && mDebugNode != null)
{
#warning unsure if movableobject is correct here
// destroy while we have the chance
List<MovableObject> nodes = (List<MovableObject>)mDebugNode.Objects;
foreach (MovableObject m in nodes)
mParent.SceneManager.DestroyMovableObject(m);
mDebugNode.RemoveAndDestroyAllChildren();
mParent.SceneManager.DestroySceneNode(mDebugNode.Name);
mDebugNode = null;
}
mParent = parent;
}
/// <summary>
/// Get a serialiser set up to read PagedWorld data for the given world filename.
/// </summary>
/// <param name="pageId"></param>
/// <param name="section"></param>
/// <returns></returns>
public virtual StreamSerializer ReadPageStream(PageID pageId, PagedWorldSection section)
{
return null;
}
/// <summary>
///
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <returns></returns>
public bool UnloadProcedualPage(Page page, PagedWorldSection section)
{
bool generated = false;
if (mPageProvider != null)
generated = mPageProvider.UnloadProcedualPage(page, section);
return generated;
}
/// <summary>
/// Give a provider the opportunity to load page content procedurally.
/// </summary>
/// <param name="page"></param>
/// <param name="section"></param>
/// <returns></returns>
public virtual bool LoadProcedualPage(Page page, PagedWorldSection section)
{
return false;
}
public virtual StreamSerializer WritePageStream(PageID pageId, PagedWorldSection section)
{
return(null);
}
public virtual bool UnloadProcedualPage(Page page, PagedWorldSection section)
{
return(false);
}
public override void DestroyInstance( ref PagedWorldSection p )
{
if ( !p.IsDisposed )
{
p.Dispose();
}
}
public abstract PageID GetPageID( Vector3 worldPos, PagedWorldSection section );
