本文整理汇总了C#中IGridService.GetRegionByPosition方法的典型用法代码示例。如果您正苦于以下问题：C# IGridService.GetRegionByPosition方法的具体用法？C# IGridService.GetRegionByPosition怎么用？C# IGridService.GetRegionByPosition使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IGridService的用法示例。
在下文中一共展示了IGridService.GetRegionByPosition方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetRegionContainingWorldLocation
// Given a world position (fractional meter coordinate), get the GridRegion info for
// the region containing that point.
// Someday this should be a method on GridService.
// 'pSizeHint' is the size of the source region but since the destination point can be anywhere
// the size of the target region is unknown thus the search area might have to be very large.
// Return 'null' if no such region exists.
public GridRegion GetRegionContainingWorldLocation(IGridService pGridService, UUID pScopeID,
double px, double py, uint pSizeHint)
{
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: query, loc=<{1},{2}>", LogHeader, px, py);
GridRegion ret = null;
const double fudge = 2.0;
// One problem with this routine is negative results. That is, this can be called lots of times
// for regions that don't exist. m_notFoundLocationCache remembers 'not found' results so they
// will be quick 'not found's next time.
// NotFoundLocationCache is an expiring cache so it will eventually forget about 'not found' and
// thus re-ask the GridService about the location.
if (m_notFoundLocationCache.Contains(px, py))
{
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: Not found via cache. loc=<{1},{2}>", LogHeader, px, py);
return null;
}
// As an optimization, since most regions will be legacy sized regions (256x256), first try to get
// the region at the appropriate legacy region location.
uint possibleX = (uint)Math.Floor(px);
possibleX -= possibleX % Constants.RegionSize;
uint possibleY = (uint)Math.Floor(py);
possibleY -= possibleY % Constants.RegionSize;
ret = pGridService.GetRegionByPosition(pScopeID, (int)possibleX, (int)possibleY);
if (ret != null)
{
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: Found region using legacy size. rloc=<{1},{2}>. Rname={3}",
LogHeader, possibleX, possibleY, ret.RegionName);
}
if (ret == null)
{
// If the simple lookup failed, search the larger area for a region that contains this point
double range = (double)pSizeHint + fudge;
while (ret == null && range <= (Constants.MaximumRegionSize + Constants.RegionSize))
{
// Get from the grid service a list of regions that might contain this point.
// The region origin will be in the zero direction so only subtract the range.
List<GridRegion> possibleRegions = pGridService.GetRegionRange(pScopeID,
(int)(px - range), (int)(px),
(int)(py - range), (int)(py));
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: possibleRegions cnt={1}, range={2}",
LogHeader, possibleRegions.Count, range);
if (possibleRegions != null && possibleRegions.Count > 0)
{
// If we found some regions, check to see if the point is within
foreach (GridRegion gr in possibleRegions)
{
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: possibleRegion nm={1}, regionLoc=<{2},{3}>, regionSize=<{4},{5}>",
LogHeader, gr.RegionName, gr.RegionLocX, gr.RegionLocY, gr.RegionSizeX, gr.RegionSizeY);
if (px >= (double)gr.RegionLocX && px < (double)(gr.RegionLocX + gr.RegionSizeX)
&& py >= (double)gr.RegionLocY && py < (double)(gr.RegionLocY + gr.RegionSizeY))
{
// Found a region that contains the point
ret = gr;
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: found. RegionName={1}", LogHeader, ret.RegionName);
break;
}
}
}
// Larger search area for next time around if not found
range *= 2;
}
}
if (ret == null)
{
// remember this location was not found so we can quickly not find it next time
m_notFoundLocationCache.Add(px, py);
m_log.DebugFormat("{0} GetRegionContainingWorldLocation: Not found. Remembering loc=<{1},{2}>", LogHeader, px, py);
}
return ret;
}