/// <summary>Обновление состояния объектов сцены</summary>
public static void Update()
{
foreach (var visual_object in __GameObjects)
{
visual_object?.Update();
}
var bullets_to_remove = new List <Bullet>();
foreach (var bullet in __Bullets)
{
bullet.Update();
if (bullet.Position.X > Width)
{
bullets_to_remove.Add(bullet);
}
}
for (var i = 0; i < __GameObjects.Length; i++)
{
var obj = __GameObjects[i];
if (obj is ICollision collision_object) // Применить "сопоставление с образцом"!
{
collision_object = (ICollision)obj;
__Ship.CheckCollision(collision_object);
if (__Ship.CheckCollision(collision_object) && collision_object is HealthPack healthPack)
{
__GameObjects[i] = new HealthPack(
new Point(Width, new Random().Next(0, Height)),
new Point(-5),
new Size(20, 20));
}
foreach (var bullet in __Bullets.ToArray())
{
if (bullet.CheckCollision(collision_object))
{
bullets_to_remove.Add(bullet);
for (var j = 0; j < __Asteroids.Count; j++)
{
if (__Asteroids[j].Equals(__GameObjects[i]))
{
__GameObjects[i] = null;
__Asteroids.RemoveAt(j);
break;
}
}
_Score += 10;
}
}
}
}
foreach (var bullet in bullets_to_remove)
{
__Bullets.Remove(bullet);
}
if (__Asteroids.Count == 0)
{
AllAsteroidsDestroyed?.Invoke(__Ship, EventArgs.Empty);
}
}
//============================================================
// Event Handlers:
//============================================================
private void Asteroid_AsteroidDestroyed(Asteroid asteroid, Vector2 asteroidDeathPosition)
{
// stop tracking the asteroid as it no-longer exists
trackedAsteroids.Remove(asteroid);
// if the last asteroid was destroyed, send an alert so the next wave can begin
if (trackedAsteroids.Count == 0 && asteroid.AsteroidSize == AsteroidSizes.Small)
{
if (AllAsteroidsDestroyed != null)
{
AllAsteroidsDestroyed.Invoke();
}
return;
}
// if the asteroid was small, we don't need to do anything atm
if (asteroid.AsteroidSize == AsteroidSizes.Small)
{
return;
}
// get the new asteroid size based on the size of the one which died
AsteroidSizes newAsteroidSize = asteroid.AsteroidSize + 1;
// spawn the number of asteroids that the asteroid splits into on death
for (int i = 0; i < asteroidSplitAmount; i++)
{
// here, we are slightly adjusting the angle of velocity so the asteroids direction changes
// this is randomised so the new asteroids head in their own directions
Quaternion velocityAdjustment = Quaternion.AngleAxis(Random.Range(-MAXIMUM_VELOCITY_ADJUSTMENT, MAXIMUM_VELOCITY_ADJUSTMENT), asteroid.transform.forward);
Vector3 adjustedVelocity = velocityAdjustment * asteroid.AsteroidVelocity;
SpawnNewAsteroid(newAsteroidSize, asteroidDeathPosition, adjustedVelocity * ASTEROID_VELOCITY_MODIFIER);
}
}