public void SpawnOneTick(EnemyStrength enemyStrength, ref ConcurrentQueue <SpawnObject> spawnQueue, WaveTypes waveType, float innerRadius = 1600f / 64f, float outerRadius = 2000f / 64f, float sideLength = 4000f / 64f)
{
EnemySpawnObject enemySpawn = new EnemySpawnObject();
var rand = new Random();
var entropy = (float)rand.NextDouble();
if (waveType == WaveTypes.Ring)
{
//Set enemy spawn using MATH POWAH
//https://stackoverflow.com/questions/9048095/create-random-number-within-an-annulus
//theta = random.uniform(0,2*pi)
float theta = (float)rand.NextDouble() * (float)Math.PI * 2f;
//A = 2/(r_max*r_max - r_min*r_min)
float A = 2 / (outerRadius * outerRadius - innerRadius * innerRadius);
//r = sqrt(2*random.uniform(0,1)/A + r_min*r_min)
float r = (float)Math.Sqrt(
2 * rand.NextDouble() / (double)A + (double)innerRadius * (double)outerRadius);
var spawnPosition = new Vector2(r * (float)Math.Cos(theta), r * (float)Math.Sin(theta));
enemySpawn.InitialPosition = spawnPosition;
}
else if (waveType == WaveTypes.Corners)
{
var entropy2 = (float)rand.NextDouble();
if (entropy2 >= .5)
{
if (entropy >= .5)
{
enemySpawn.InitialPosition = new Vector2(sideLength / 2 + entropy, sideLength / 2 + entropy);
}
else
{
enemySpawn.InitialPosition = new Vector2(-sideLength / 2 + entropy, -sideLength / 2 + entropy);
}
}
else
{
if (entropy >= .5)
{
enemySpawn.InitialPosition = new Vector2(-sideLength / 2 + entropy, sideLength / 2 + entropy);
}
else
{
enemySpawn.InitialPosition = new Vector2(sideLength / 2 + entropy, -sideLength / 2 + entropy);
}
}
}
else if (waveType == WaveTypes.InsideOut)
{
enemySpawn.InitialPosition = new Vector2(entropy, -entropy);
}
var enemyType = "alien_tick";
enemySpawn.Radius = .4f;
enemySpawn.InitialRestitution = 0f;
switch (enemyStrength)
{
case EnemyStrength.Easy:
enemySpawn.EnemyType = enemyType;
enemySpawn.Speed = 9f;
enemySpawn.Damage = 2f;
enemySpawn.InitialHealth = 10f;
break;
case EnemyStrength.EasyMedium:
enemySpawn.EnemyType = enemyType;
enemySpawn.Speed = 10f;
enemySpawn.Damage = 5f;
enemySpawn.InitialHealth = 10f;
break;
case EnemyStrength.Medium:
enemySpawn.EnemyType = enemyType;
enemySpawn.Speed = 11f;
enemySpawn.Damage = 10f;
enemySpawn.InitialHealth = 15f;
break;
case EnemyStrength.Hard:
enemySpawn.EnemyType = enemyType;
enemySpawn.Speed = 12f;
enemySpawn.Damage = 25f;
enemySpawn.InitialHealth = 25f;
break;
case EnemyStrength.VeryHard:
enemySpawn.EnemyType = enemyType;
enemySpawn.Speed = 13f;
enemySpawn.Damage = 35f;
enemySpawn.InitialHealth = 30f;
break;
}
spawnQueue.Enqueue(enemySpawn);
}
private void SpawnEnemy(EnemySpawnObject enemySpawn)
{
//Define body
var enemy = new Body {
BodyType = BodyType.Dynamic
};
var enemyFixture = enemy.CreateCircle(enemySpawn.Radius, 1);
enemy.SetRestitution(enemySpawn.InitialRestitution);
enemy.SetFriction(enemySpawn.InitialFriction);
enemy.Mass = enemySpawn.InitialMass;
enemy.LinearDamping = enemySpawn.LinearDamping;
var enemyModel = new EnemyModel(enemy);
enemyModel.EnemyType = enemySpawn.EnemyType;
enemyModel.Damage = enemySpawn.Damage;
enemyModel.Speed = enemySpawn.Speed;
enemyModel.Health = enemySpawn.InitialHealth;
enemyModel.MaxHealth = enemySpawn.InitialHealth;
enemy.Tag = enemyModel;
_world.Add(enemy);
enemy.SetTransform(enemySpawn.InitialPosition, enemySpawn.InitialAngle);
enemy.OnCollision += (fixtureA, fixtureB, contact) =>
{
if (fixtureA.Body.Tag.Equals("worldBounds") || fixtureB.Body.Tag.Equals("worldBounds"))
{
return(false);
}
if (fixtureA.Body.Tag is PlayerModel p1)
{
if (fixtureB.Body.Tag is EnemyModel e && !e.Dead)
{
p1.Hurt(enemyModel.Damage);
}
if (fixtureB.Body.Tag is EnemyModel e2 && e2.Dead)
{
return(false);
}
if (p1.Dead)
{
MarkEntityForDestruction(p1);
if (fixtureB.Body.Tag is EnemyModel eB)
{
eB.ResetClosestPlayer();
}
}
}
if (fixtureB.Body.Tag is PlayerModel p2)
{
if (fixtureA.Body.Tag is EnemyModel e && !e.Dead)
{
p2.Hurt(enemyModel.Damage);
}
if (fixtureA.Body.Tag is EnemyModel e2 && e2.Dead)
{
return(false);
}
if (p2.Dead)
{
MarkEntityForDestruction(p2);
if (fixtureA.Body.Tag is EnemyModel eA)
{
eA.ResetClosestPlayer();
}
}
}
return(true);
};
_objectDictionary.TryAdd(enemyModel.ID, enemyModel);
aiController.Register(enemyModel, ref _objectDictionary);
enemyModel.SearchForClosestPlayer(PlayerDictionary);
}
