public List <UnitBase> GetUnitListInLine(IntVector2 startPos, short angle, short lineWidth, short lineLength, CampType effectCamp, List <UnitBase> filler = null)
{
List <UnitBase> ret = null;
if (null == filler)
{
ret = mConditionFindRet;
ret.Clear();
}
else
{
ret = filler;
}
//求出未旋转时的矩形的四个边的坐标
IntVector2 rectangleLeftBottomPos = startPos - new IntVector2(lineWidth, 0);
IntVector2 rectangleRightBottomPos = startPos + new IntVector2(lineWidth, 0);
IntVector2 rectangleLeftTopPos = rectangleLeftBottomPos + new IntVector2(0, lineLength);
IntVector2 rectangleRightTopPos = rectangleRightBottomPos + new IntVector2(0, lineLength);
//对四个边进行旋转
rectangleLeftBottomPos = IntVector2.Rotate(rectangleLeftBottomPos, angle);
rectangleLeftTopPos = IntVector2.Rotate(rectangleLeftTopPos, angle);
rectangleRightBottomPos = IntVector2.Rotate(rectangleRightBottomPos, angle);
rectangleRightTopPos = IntVector2.Rotate(rectangleRightTopPos, angle);
IntVector2 minPos = IntVector2.MinVector(rectangleLeftBottomPos, rectangleLeftTopPos, rectangleRightBottomPos, rectangleRightTopPos);
IntVector2 maxPos = IntVector2.MaxVector(rectangleLeftBottomPos, rectangleLeftTopPos, rectangleRightBottomPos, rectangleRightTopPos);
int searchIndexMinX = PosToSafeXLattlceIndex(minPos.x);
int searchIndexMaxX = PosToSafeXLattlceIndex(maxPos.x);
int searchIndexMinY = PosToSafeYLattlceIndex(minPos.y);
int searchIndexMaxY = PosToSafeYLattlceIndex(maxPos.y);
Matrix3x3 transMa3x3 = Matrix3x3.Create(angle, startPos);
for (int i = searchIndexMinX; i <= searchIndexMaxX; i++)
{
for (int j = searchIndexMinY; j <= searchIndexMaxY; ++j)
{
List <UnitBase> lattleUnitList = mLattileUnitList[i, j];
if (null == lattleUnitList)
{
continue;
}
for (int k = 0; k < lattleUnitList.Count; ++k)
{
UnitBase unitBase = lattleUnitList[k];
if (unitBase.Data.camp != effectCamp)
{
continue;
}
IntVector2 posInSquare = transMa3x3 * unitBase.Position;
if (MathUtils.IsPosInSquare(lineWidth, lineLength, posInSquare))
{
ret.Add(unitBase);
}
}
}
}
return(ret);
}
