public static void Burst(GameObject world, PointF point,
int amount = 2000,
int minMagnitude = 50,
int maxMagnitude = 300,
float initialSize = 2,
float deltaSize = 2,
float deltaAlpha = -2)
{
for (int i = 0; i < amount; i++)
{
float angle = rnd.Next(0, 360);
float magnitude = rnd.Next(minMagnitude, maxMagnitude);
float o = (float)Math.Sin(angle) * magnitude;
float a = (float)Math.Cos(angle) * magnitude;
GameObject explosion = new Explosion(new PointF(a, o), initialSize, deltaSize, deltaAlpha);
explosion.Center = point;
world.AddChild(explosion);
}
world.Play(rnd.NextDouble() > 0.5 ?
Properties.Resources.explosion1 :
Properties.Resources.explosion2);
}
public override void Update(float deltaTime)
{
if (!active)
{
return;
}
GameObject world = Parent;
Center = world.Center;
Left = world.Right;
int now = Environment.TickCount;
if (now - last > emmisionInterval)
{
last = now;
EnemyShip ship = new EnemyShip(shipIndex, behavior);
ship.Center = Center;
world.AddChild(ship);
}
}
private void Form1_Load(object sender, EventArgs e)
{
Random rnd = new Random();
GameObject world = scene.World;
{
var noise = new[]
{
Properties.Resources.space_noise_1,
Properties.Resources.space_noise_2,
Properties.Resources.space_noise_3
};
world.AddChild(new SpaceNoise(noise[0], 3 * 1.5f, 1.00f, false, false));
world.AddChild(new SpaceNoise(noise[0], 3 * 2.5f, 2.00f, true, true));
world.AddChild(new SpaceNoise(noise[1], 3 * 3.5f, 1.50f, false, true));
world.AddChild(new SpaceNoise(noise[2], 3 * 5.5f, 2.00f, true, false));
}
world.AddChild(new StarSpawner());
EnemySpawner[] spawners = new EnemySpawner[]
{
new EnemySpawner(0, 500, new FuncBehavior(x => Math.Sin(x * 10) * 0.9, 175)),
new EnemySpawner(11, 500, new FollowPlayerBehavior(200)),
new EnemySpawner(29, 500, new FuncBehavior(x => - 0.9 * (2 / Math.PI) * Math.Asin(Math.Sin(Math.PI * x * 3)), 250)),
new EnemySpawner(20, 500, new FlockingBehavior(200)),
new EnemySpawner(42, 500, new FuncBehavior(x => (Math.Sin(x * 10) + Math.Sin(x * 5)) * 0.5, 275)),
new EnemySpawner(63, 500, new FuncBehavior(x => Math.Atan(x * 10 - 5) * -0.5, 200)),
new EnemySpawner(54, 500, new FuncBehavior(x => (Math.Sin((x + 1) * 10 + 15) - Math.Sin((x + 1) * 15)) * 0.2 - 0.4, 300)),
};
world.AddChildren(spawners);
world.AddChild(new EnemySpawnerDirector(spawners));
PlayerShip player = new PlayerShip(33);
player.CenterY = world.CenterY;
player.Left = world.Left + 100;
world.AddChild(player);
}
