public void ShouldRemoveDeadExplosionInATick()
{
var explosion = new Explosion(20, 22);
_battlefield.Add(explosion);
for (var i = 0;i<16;i++)
explosion.Tick();
_battlefield.Tick();
Assert.That(_battlefield.NewExplosions.Count,Is.EqualTo(0));
Assert.That(_battlefield.Explosions.Count, Is.EqualTo(0));
}