//This method updates the active bullets.
public void update(Map m, Tank t1, List<EnemyTanks> others)
{
for (int i = 0; i < bullets.Count; i++)
{
if (bullets[i] != null)
{
Vector2 direction = bullets[i].Target - bullets[i].Position; //Move in target's direction.
if (direction.Length() <= 1.5) //Don't fire if aimed very close to the firing tank.
{
bullets[i].LifeTime = 0;
}
direction.Normalize();
bullets[i].Position += direction * 2.7f;
bullets[i].LifeTime--;
int x = (int)Math.Floor(bullets[i].Position.X / 20);
int y = (int)Math.Floor(bullets[i].Position.Y / 20);
//If bullet is out of bounds, over a wall tile or out of lifetime(fire range), remove bullet object.
if (x < 0 || x > 63 || y < 0 || y > 35 || m.getTileType(x, y) == 1 || bullets[i].LifeTime < 1)
{
bullets.RemoveAt(i);
i--;
break;
}
if (i >= 0)
{
//If bullet is within range of player tank, if it overlaps wth any of its spheres, remove bullet object.
if ((bullets[i].Position - t1.Position).Length() <= 31 && bullets[i].BulletColor != t1.TankColor)
{
foreach (BoundingSphere s in t1.Spheres)
{
Vector2 spherePos = new Vector2(s.Center.X, s.Center.Y);
if ((bullets[i].Position - spherePos).Length() <= 10)
{
if (t1.LivesRemaining > 0)
{
t1.LivesRemaining--;
}
bullets.RemoveAt(i);
i--;
break;
}
}
}
}
if (i >= 0)
{
foreach (EnemyTanks e in others)
{
if (i >= 0)
{
//If bullet is within range of another AI tank, if it overlaps wth any of its spheres, remove bullet object.
if ((bullets[i].Position - e.Position).Length() <= 31 && bullets[i].BulletColor != e.TankColor)
{
foreach (BoundingSphere s in e.Spheres)
{
Vector2 spherePos = new Vector2(s.Center.X, s.Center.Y);
if ((bullets[i].Position - spherePos).Length() <= 10)
{
if (e.LivesRemaining > 0)
{
e.LivesRemaining--;
}
bullets.RemoveAt(i);
i--;
break;
}
}
}
}
else
{
break;
}
}
}
}
}
}
