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Fix and optimize FindTilesInCircle

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This commit is contained in:
Pavlos Touboulidis
2014-06-21 02:18:55 +03:00
parent 1c511ea6eb
commit daed053a57
7 changed files with 42 additions and 50 deletions
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5
OpenRA.Mods.RA/Activities/MoveWithinRange.cs
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@@ -45,16 +45,13 @@ namespace OpenRA.Mods.RA.Activities
{
var map = self.World.Map;
var maxCells = (maxRange.Range + 1023) / 1024;
var outerCells = map.FindTilesInCircle(targetPosition, maxCells);
var minCells = minRange.Range / 1024;
var innerCells = map.FindTilesInCircle(targetPosition, minCells);
var outerSq = maxRange.Range * maxRange.Range;
var innerSq = minRange.Range * minRange.Range;
var center = target.CenterPosition;
return outerCells.Except(innerCells).Where(c =>
return map.FindTilesInAnnulus(targetPosition, minCells + 1, maxCells).Where(c =>
{
var dxSq = (map.CenterOfCell(c) - center).HorizontalLengthSquared;
return dxSq >= innerSq && dxSq <= outerSq;