void FindPath()
{
TileSystem tileSystem = TileSystem.Instance;
while (0 != _pathfindingQueue.Count)
{
//제일 앞 타일을 하나 꺼낸다.
sPathCommand command = _pathfindingQueue[0];
_pathfindingQueue.RemoveAt(0);
//방문한 타일인가?
if (false == command.tileCell.IsVisit())
{
command.tileCell.Visit();
if (_targetTileCell.GetTilePosition().Equals(command.tileCell.GetTilePosition()))
{
_reverseTileCell = _targetTileCell;
return;
}
for (int direction = 0; direction < (int)eDirection.MAX; direction++)
{
sTilePosition nextTilePos = new sTilePosition(command.tileCell.GetTileX(), command.tileCell.GetTileY());
TileHelper.GetNextTilePosByDirection((eDirection)direction, ref nextTilePos);
TileCell nextTileCell = tileSystem.GetTileCell(nextTilePos);
if (((true == tileSystem.CanMoveTileCell(nextTilePos.tileX, nextTilePos.tileY)) && false == nextTileCell.IsVisit()) ||
(nextTilePos.tileX == _targetTileCell.GetTileX() && nextTilePos.tileY == _targetTileCell.GetTileY()))
{
float newDistanceFromStart = command.tileCell.GetDistanceFromStart() + command.tileCell.GetDistanceWeight();
float newHeuristic = CalcAstarHeuristic(newDistanceFromStart, nextTileCell, _targetTileCell);
if (null == nextTileCell.GetPrevCell())
{
nextTileCell.SetDistanceFromStart(newDistanceFromStart);
nextTileCell.SetPrevCell(command.tileCell); //이전 타일 기억
sPathCommand newCommand = new sPathCommand();
newCommand.heuristic = newHeuristic;
newCommand.tileCell = nextTileCell;
PushCommand(newCommand);
}
}
}
}
}
}
void BuildPath()
{
while (null != _reverseTileCell)
{
#if UNITY_EDITOR
_reverseTileCell.DrawColor(_drawColor);
_drawTilecell.Add(_reverseTileCell);
#endif
_character.PushPathTileCell(_reverseTileCell);
_reverseTileCell = _reverseTileCell.GetPrevCell();
}
if (_character.GetPathStack().Count != 0)
{
_character.GetPathStack().Pop(); //자기 위치 타일 빼주기
}
}
