/// <summary>
/// Continuously spawn asteroids in the screen.
/// </summary>
/// <param name="cancellationToken">The cancellation token that will stop the creation of asteroids.</param>
/// <returns>The task that will create asteroids in the screen.</returns>
async Task SpawnAsteroids(CancellationToken cancellationToken)
{
while (!cancellationToken.IsCancellationRequested)
{
await UpdateContext.Delay(SpawnAsteroidsDelay, cancellationToken);
SpawnAsteroid();
}
}
public async Task <bool> FireSpecialWeapon(CancellationToken cancellation)
{
if (SpecialAttack == null || SpecialWeaponAmmo.IsEmpty)
{
return(false);
}
SpecialWeaponAmmo.Quantity--;
SoundManager.PlaySound("Special03");
await TaskEx.WhenAll(
SpecialAttack(this),
UpdateContext.Delay(SpecialWeaponDelay));
return(true);
}
public async Task <bool> FireLaser(CancellationToken cancellation)
{
if (MainWeaponAmmo.IsEmpty)
{
return(false);
}
var direction = Vector2Extension.AngleToVector2(Rotation);
var laser = new Laser(this, Momentum, Position, direction);
laser.ApplyAcceleration(direction * laser.MaxSpeed, instantaneous: true);
ApplyForce(-direction * laser.Mass, instantaneous: true);
MainWeaponAmmo.Quantity--;
SoundManager.PlaySound("Shoot01");
Level.AddEntity(laser);
await UpdateContext.Delay(MainWeaponDelay);
return(true);
}
