public void Update()
{
if (Ship != null)
{
if ((DateTime.Now - lastSpawn).TotalMilliseconds >= SPAWN_INTERVAL)
{
SpawnEnemy();
}
}
for (int b = 0; b < Bullets.Count; b++)
{
Bullets[b].Update();
Bullets[b].Clear();
if (Bullets[b].IsInMap)
{
bool hit = false;
for (int e = 0; e < Enemies.Count; e++)
{
if (Enemies[e].IsAtCoordinates(Bullets[b].X, Bullets[b].Y) ||
Enemies[e].IsAtCoordinates(Bullets[b].LastX, Bullets[b].LastY))
{
hit = true;
Explosions.Add(new Explosion(this, Bullets[b].X, Bullets[b].LastY));
if (Enemies[e].Hit())
{
DestroyedShips++;
Enemies[e].Explode();
Enemies[e].Delete();
Enemies.RemoveAt(e--);
}
break;
}
}
if (hit)
{
Bullets.RemoveAt(b--);
IncreaseScore(1);
}
else
{
Bullets[b].Redraw();
}
}
else
{
Bullets.RemoveAt(b--);
}
}
for (int e = 0; e < Enemies.Count; e++)
{
Enemies[e].Update();
Enemies[e].Clear();
if (Enemies[e].IsInMap)
{
if (Ship != null)
{
bool hit = false;
int y = Enemies[e].Y;
foreach (int x in Enemies[e].GetXValues())
{
if (Ship.IsAtCoordinates(x, y) || Ship.WasAtCoordinates(x, y))
{
hit = true;
break;
}
}
if (hit)
{
Explosions.Add(new Explosion(this, Ship.X, Ship.Y));
Enemies[e].Explode();
Enemies[e].Delete();
Enemies.RemoveAt(e--);
Ship.Explode();
Ship.Delete();
Ship = null;
break;
}
else
{
Enemies[e].Redraw();
}
}
Enemies[e].Redraw();
}
else
{
Enemies[e].Clear();
Enemies.RemoveAt(e--);
}
}
for (int e = 0; e < Explosions.Count; e++)
{
Explosions[e].Update();
Explosions[e].Clear();
if (Explosions[e].IsFinished)
{
Explosions.RemoveAt(e--);
}
else
{
Explosions[e].Redraw();
}
}
if (Ship != null)
{
Ship.Update();
Ship.Clear();
Ship.Redraw();
}
}
