/** Should only be called from Bomb.Blow() */
public void BlowBomb(Bomb bomb)
{
int cx = bomb.GetCx();
int cy = bomb.GetCy();
bomb.RemoveFromField();
SetFlame(bomb, cx, cy);
bomb.player.OnBombBlown(bomb);
bool up = true, down = true, left = true, right = true;
int radius = bomb.GetRadius();
for (int i = 1; i <= radius && (up || down || left || right); ++i)
{
left = left && SetFlame(bomb, cx - i, cy);
up = up && SetFlame(bomb, cx, cy - i);
down = down && SetFlame(bomb, cx, cy + i);
right = right && SetFlame(bomb, cx + i, cy);
}
}