private void Start()
{
// Initialize our rng
_random = new Random(Environment.TickCount + SeedAddition);
if (SpawnInitial)
{
// Spawn in a bunch of instances initially
var retryCount = 0;
while (_instances.Count < Count)
{
var pos = _random.NextVector2D(TargetCamera.position.Xyn(0), Distance);
// Make sure the instance can be spawned here
if (!IsValidSpawnPosition(pos))
{
retryCount++;
if (retryCount > 10)
{
Debug.LogWarning("Had to early-bail on spawning.");
break;
}
continue;
}
// Actually spawn the instance
var obj = Instantiate(Prefab);
obj.transform.position = pos;
obj.transform.parent = gameObject.transform;
_instances.Add(obj);
}
}
}
private void Start()
{
// Initialize our rng
_random = new Random(Environment.TickCount + SeedAddition);
if (SpawnInitial)
{
// Spawn in a bunch of instances initially
var retryCount = 0;
while (_instances.Count < Count)
{
var pos = _random.NextVector2D(TargetCamera.position.Xyn(0), Distance);
// Make sure the instance can be spawned here
if (!IsValidSpawnPosition(pos))
{
retryCount++;
if (retryCount > 10)
{
Debug.LogWarning("Had to early-bail on spawning.");
break;
}
continue;
}
// Actually spawn the instance
var obj = Instantiate(Prefab);
obj.transform.position = pos;
obj.transform.parent = gameObject.transform;
_instances.Add(obj);
}
}
}
public void Transform1D()
{
// Transform forward and inverse and compare with initial values.
var random = new Random(1234567);
var s = new Vector2D[16];
var t = new Vector2D[16];
for (int i = 0; i < s.Length; i++)
{
s[i] = random.NextVector2D(-10, 10);
t[i] = s[i];
}
FastFourierTransformD.Transform1D(t, true);
FastFourierTransformD.Transform1D(t, false);
for (int i = 0; i < s.Length; i++)
Assert.IsTrue(Vector2D.AreNumericallyEqual(s[i], t[i]));
}
public void Transform1DAs2DColumn()
{
// Result of 2D with one row/column must be the same as 1D.
var fft = new FastFourierTransformD(16);
var random = new Random(1234567);
var s1D = new Vector2D[16];
var s2D = new Vector2D[16, 1];
for (int i = 0; i < s1D.Length; i++)
{
s1D[i] = random.NextVector2D(-10, 10);
s2D[i, 0] = s1D[i];
}
FastFourierTransformD.Transform1D(s1D, true);
fft.Transform2D(s2D, true);
for (int i = 0; i < s1D.Length; i++)
Assert.AreEqual(s1D[i], s2D[i, 0]);
}
private void Update()
{
// Trim any unneeded instances
for (var i = 0; i < _instances.Count; i++)
{
// Check if we can keep this instance
var instance = _instances[i];
if (instance != null && InstanceIsInRange(instance))
{
continue;
}
// We can't, remove it
Destroy(_instances[i]);
_instances.RemoveAt(i);
i--;
}
// Check how many times we're allowed to spawn this frame
var allowedSpawns = 0;
if (Math.Abs(SpawnDelay) > 0.01f)
{
_spawnDelayTimer += Time.deltaTime;
while (_spawnDelayTimer >= SpawnDelay)
{
_spawnDelayTimer -= SpawnDelay;
allowedSpawns++;
}
}
else
{
allowedSpawns = 9999;
}
// Add new instances if we have to
var retryCount = 0;
while (_instances.Count < Count && allowedSpawns > 0)
{
allowedSpawns -= 1;
// Make sure the cloud's at one of the edges
var otherPos = TargetCamera.position;
var pos = _random.NextVector2D(otherPos.Xyn(0), Distance);
var axis = _random.Next(2);
pos[axis] = _random.Next(2) == 1 ? otherPos[axis] + Distance : otherPos[axis] - Distance;
// Make sure the instance can be spawned here
if (!IsValidSpawnPosition(pos))
{
retryCount++;
if (retryCount > 10)
{
Debug.LogWarning("Had to early-bail on spawning.");
break;
}
continue;
}
// Create and add the cloud
var obj = Instantiate(Prefab);
obj.transform.position = pos;
obj.transform.parent = gameObject.transform;
_instances.Add(obj);
}
}
public void Transform2D()
{
// Transform forward and inverse and compare with initial values.
var random = new Random(1234567);
var s = new Vector2D[16, 8];
var t = new Vector2D[16, 8];
for (int i = 0; i < s.GetLength(0); i++)
{
for (int j = 0; j < s.GetLength(1); j++)
{
s[i, j] = random.NextVector2D(-10, 10);
t[i, j] = s[i, j];
}
}
var fft = new FastFourierTransformD(16);
fft.Transform2D(t, true);
Assert.IsFalse(Vector2D.AreNumericallyEqual(s[0, 0], t[0, 0]));
fft.Transform2D(t, false);
for (int i = 0; i < s.GetLength(0); i++)
for (int j = 0; j < s.GetLength(1); j++)
Assert.IsTrue(Vector2D.AreNumericallyEqual(s[i, j], t[i, j]));
}
