//Use link to figure out which invaders should be able to return fire
public void ReturnFire(int wave, Random random)
{
if (wave + 1 == enemyShots.numberOfShots())
{
return;
}
if (random.Next(10) < 10 - wave)
{
return;
}
//Linq query to extract the invader to return fire
var theShootingInvaders = (from invader in invaders
group invader by invader.Location.X
into invaderGroup
orderby invaderGroup.Key descending
select invaderGroup);
if (invaders.Count() > 0)
{
//Gets the first invader in each column last will take the closest invaders while first while take the invaders in the back
Invader theShooter = theShootingInvaders.ElementAt(random.Next(theShootingInvaders.Count())).Last <Invader>();
Fire(theShooter);
}
}
public void Fire()
{
//Centralize the origin of the shot to the center front of the ship
Point gunOfShip = new Point(location.X + image.Width / 2 - 2, location.Y - image.Height);
//Only allow addition of shots if the total number of shots by the player is less than 5
if (playerShots.numberOfShots() < 5)
{
playerShots.Add(new Shot(gunOfShip, true, boundaries));
}
}
public void CheckForCollisions(Display scoreBoard)
{
for (int i = 0; i < playerShots.numberOfShots(); i++)
{
for (int j = 0; j < invaders.Count(); j++)
{
if (invaders.ElementAt <Invader>(j).Area.Contains(playerShots.ElementAt(i).Area) == true)
{
playerShots.Remove(i);
scoreBoard.Score = invaders.ElementAt <Invader>(j).Score;
invaders.RemoveAt(j);
InvadersLeft = -1;
break;
}
}
}
}
public bool CheckForCollisions()
{
for (int i = 0; i < enemyShots.numberOfShots(); i++)
{
if (Area.Contains(enemyShots.ElementAt(i).Area) == true)
{
Alive = false;
enemyShots.Remove(i);
return(Alive);
}
else
{
Alive = true;
}
}
return(Alive);
}
