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
}
}
}
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
}
}
}