/// <summary>
/// Creates the child asteroid.
/// </summary>
/// <param name="dir">Dir.</param>
/// <param name="asteroidPos">Asteroid position.</param>
/// <param name="newSize">New size.</param>
private void CreateChildAsteroid(Vector2 dir, Vector2 asteroidPos, AsteroidSize newSize)
{
var pos = new Vector3(asteroidPos.x + dir.x, asteroidPos.y + dir.y);
var a = _creator.CreateAsteroid(newSize, pos);
var multiplier = GetForceMultiplier(newSize);
var rb = a.GetComponent <Rigidbody2D>();
var force = new Vector2(dir.x, dir.y) * multiplier;
rb.AddForce(force, ForceMode2D.Impulse);
rb.AddTorque(force.x * multiplier * multiplier, ForceMode2D.Impulse);
}
private void SplitAsteroid(Asteroid asteroid)
{
if (asteroid.size != AsteroidSize.Tiny)
{
var newSize = AsteroidSize.Medium;
var scale = 0.5f;
if (asteroid.size == AsteroidSize.Medium)
{
newSize = AsteroidSize.Small;
scale = 0.2f;
}
if (asteroid.size == AsteroidSize.Small)
{
newSize = AsteroidSize.Tiny;
scale = 0.1f;
}
var vel = asteroid.rigidbody2D.velocity;
var velNormal = vel.normalized;
var perp = new Vector2(-velNormal.y, velNormal.x);
var newVelNormal = (velNormal + perp).normalized;
var pos = new Vector3(asteroid.transform.position.x + perp.x * scale, asteroid.transform.position.y + perp.y * scale);
var a = creator.CreateAsteroid(newSize, pos);
var rigidbody = a.Get <Rigidbody2D>(typeof(Rigidbody2D));
rigidbody.AddRelativeForce(new Vector2(newVelNormal.x * 100f * scale, newVelNormal.y * 100f * scale));
rigidbody.AddTorque(UnityEngine.Random.Range(-200f, 200f) * scale);
perp = new Vector2(velNormal.y, -velNormal.x);
newVelNormal = (velNormal + perp).normalized;
pos = new Vector3(asteroid.transform.position.x + perp.x * scale, asteroid.transform.position.y + perp.y * scale);
a = creator.CreateAsteroid(newSize, pos);
rigidbody = a.Get <Rigidbody2D>(typeof(Rigidbody2D));
rigidbody.AddRelativeForce(new Vector2(newVelNormal.x * 100f * scale, newVelNormal.y * 100f * scale));
rigidbody.AddTorque(UnityEngine.Random.Range(-200f, 200f) * scale);
}
}
/// <summary>
/// Spawns the asteroid.
/// </summary>
private void SpawnAsteroid()
{
var spaceship = spaceships.First();
var position = FindPositionForNewAsteroid(spaceship);
var asteroid = _creator.CreateAsteroid(AsteroidSize.Large, position);
// Give it a kick
var vel = UnityEngine.Random.insideUnitCircle.normalized;
var torque = vel.x / 2;
var rigidBody = asteroid.GetComponent <Rigidbody2D>();
rigidBody.AddForce(vel, ForceMode2D.Impulse);
rigidBody.AddTorque(torque, ForceMode2D.Impulse);
}
override public void Update(float time)
{
var node = (GameNode)gameNodes.Head;
if (node != null && node.State.playing)
{
if (spaceships.Empty)
{
if (node.State.lives > 0)
{
var newSpaceshipPosition = Vector2.zero;
var clearToAddSpaceship = true;
for (var asteroid = (AsteroidCollisionNode)asteroids.Head; asteroid != null; asteroid = (AsteroidCollisionNode)asteroid.Next)
{
if (Vector2.Distance(asteroid.Transform.position, newSpaceshipPosition) <= 1f)
{
clearToAddSpaceship = false;
break;
}
}
if (clearToAddSpaceship)
{
creator.CreateSpaceship();
}
}
else
{
Debug.Log("IN HERE");
node.State.playing = false;
creator.CreateWaitForClick();
}
}
}
if (asteroids.Empty && bullets.Empty && !spaceships.Empty)
{
// next level
var spaceship = (SpaceshipNode)spaceships.Head;
node.State.level++;
var asteroidCount = 2 + node.State.level;
for (int i = 0; i < asteroidCount; i++)
{
// check not on top of spaceship
Vector2 position;
do
{
position = new Vector2(UnityEngine.Random.Range(config.Bounds.min.x, config.Bounds.max.x),
UnityEngine.Random.Range(config.Bounds.min.y, config.Bounds.max.y));
}while (Vector2.Distance(position, spaceship.Transform.position) <= 1);
var asteroid = creator.CreateAsteroid(AsteroidSize.Large, position);
// Give it a kick
var xVel = UnityEngine.Random.Range(-100f, 100f);
var yVel = UnityEngine.Random.Range(-100f, 100f);
var torque = UnityEngine.Random.Range(-100f, 100f);
var rigidBody = asteroid.Get <Rigidbody2D>(typeof(Rigidbody2D));
rigidBody.AddForce(new Vector2(xVel, yVel));
rigidBody.AddTorque(torque);
}
}
}