public void SetTargetPosition(Vector2 position)
{
_targetPosition = position;
int currentTargetX = (int)(position.X / Helper.GRID_CELL_SIZE);
int currentTargetY = (int)(position.Y / Helper.GRID_CELL_SIZE);
if (_prevTargetX != currentTargetX || _prevTargetY != currentTargetY)
{
_stop = false;
_prevTargetX = currentTargetX;
_prevTargetY = currentTargetY;
_grid.SetStart(Tank.Location);
_grid.SetFinish(position);
_pathToTarget = _grid.GetPath();
_pathToTarget.Reverse();
if (_pathToTarget.Count > 0)
{
_pathToTarget.RemoveAt(_pathToTarget.Count - 1);
_stop = false;
}
else
{
_stop = true;
}
_cells.Clear();
foreach (Vector2 pos in _pathToTarget)
{
Cell c = new Cell(pos);
c.LoadContent(_content);
_cells.Add(c);
}
if (_pathToTarget.Count > 0)
{
_pathToTarget[0] = new Vector2(
_pathToTarget[0].X + Helper.GRID_CELL_SIZE / 2,
_pathToTarget[0].Y + Helper.GRID_CELL_SIZE / 2);
_toTargetDirection = _pathToTarget[0] - Tank.Location;
_toTargetDirection.Normalize();
}
}
}
