public void Spawn() // method that instantiates targets on sphere
{
int vertical = (int)(Mathf.PI / 2 / sphereSettings.Spacing); // determining how much targets we need on each meridian
for (int i = 0; i <= vertical; i++) // running through each meridians
{
float r = Mathf.Cos(Mathf.PI / 2 - i * sphereSettings.Spacing); // cos value that works as weight of circumference of each parallel form equator to pole
// because on equator you need biggest amount of targets and on pole - only one
int horizontal = (int)(r * 2 * Mathf.PI / sphereSettings.Spacing); // so we multiplying this weight by targets we need on each parallel to have weighted
// (evenly spread) amount of targets through all the sphere
horizontal = horizontal == 0 ? 1 : horizontal; // for pole it need to be at least one
for (int j = 0; j < horizontal; j++) // running through parallels
{
VectorSphere sphericalPos = new VectorSphere(i * sphereSettings.Spacing, //determining position on the sphere with each target
j * 2 * Mathf.PI / horizontal, sphereSettings.Radius);
var target = Instantiate(targetPrefab, transform); // instantiate
var targetComponent = target.GetComponent <Target>();
// setting speed opposite for neighbouring parallels
targetComponent.Init(sphereSettings, sphericalPos, sphereSettings.TargetsSpeed * Mathf.Pow(-1, i) / horizontal);
_targetsList.Add(targetComponent); // adding to the list
}
}
TargetsReady = true;
}
public void Init(GameSettings sphereSettings, VectorSphere spherePos, float speed)
{
_sphereSettings = sphereSettings;
_spherePos = spherePos;
_speed = speed;
// initialize position and look at center
transform.localPosition = _spherePos.ToCartesian();
transform.LookAt(Vector3.zero);
}