public Cell(Cell cell)
{
data = cell.data;
}
public bool DiffGrid(Cell cell)
{
return(data.grid_x != cell.data.grid_x ||
data.grid_y != cell.data.grid_y);
}
public void Visit(CellCoord standing_cell, Visitor visitor, Map map, float x_off, float y_off, float radius)
{
if (!standing_cell.IsCoordValid())
{
return;
}
//no jokes here... Actually placing ASSERT() here was good idea, but
//we had some problems with DynamicObjects, which pass radius = 0.0f (DB issue?)
//maybe it is better to just return when radius <= 0.0f?
if (radius <= 0.0f)
{
map.Visit(this, visitor);
return;
}
//lets limit the upper value for search radius
if (radius > MapConst.SizeofGrids)
{
radius = MapConst.SizeofGrids;
}
//lets calculate object coord offsets from cell borders.
CellArea area = CalculateCellArea(x_off, y_off, radius);
//if radius fits inside standing cell
if (area == null)
{
map.Visit(this, visitor);
return;
}
//visit all cells, found in CalculateCellArea()
//if radius is known to reach cell area more than 4x4 then we should call optimized VisitCircle
//currently this technique works with MAX_NUMBER_OF_CELLS 16 and higher, with lower values
//there are nothing to optimize because SIZE_OF_GRID_CELL is too big...
if ((area.high_bound.x_coord > (area.low_bound.x_coord + 4)) && (area.high_bound.y_coord > (area.low_bound.y_coord + 4)))
{
VisitCircle(visitor, map, area.low_bound, area.high_bound);
return;
}
//ALWAYS visit standing cell first!!! Since we deal with small radiuses
//it is very essential to call visitor for standing cell firstly...
map.Visit(this, visitor);
// loop the cell range
for (uint x = area.low_bound.x_coord; x <= area.high_bound.x_coord; ++x)
{
for (uint y = area.low_bound.y_coord; y <= area.high_bound.y_coord; ++y)
{
CellCoord cellCoord = new CellCoord(x, y);
//lets skip standing cell since we already visited it
if (cellCoord != standing_cell)
{
Cell r_zone = new Cell(cellCoord);
r_zone.data.nocreate = data.nocreate;
map.Visit(r_zone, visitor);
}
}
}
}
public bool DiffCell(Cell cell)
{
return(data.cell_x != cell.data.cell_x ||
data.cell_y != cell.data.cell_y);
}