private void SpawnGridLikeThing()
{
int howManyAround = 18;
for (int j = 0; j < howManyAround; ++j)
{
int howManyUp = 10;
for (int i = 0; i < howManyUp; ++i)
{
float phi = j * 2 * Mathf.PI / howManyAround;
float theta = i * Mathf.PI / 2.0f / howManyUp;
GameObject starGO = PrefabLoader.Instance.InstantiateSynchronous(this._starPrefabPath, this.transform);
starGO.transform.localPosition = StarFieldUtils.GetPositionFromPhiTheta(phi, theta, this._starfieldDistance);
starGO.name = i.ToString();
starGO.transform.localScale = new Vector3(10.0f, 10.0f, 10.0f);
Lookat starLookat = starGO.GetComponent <Lookat>();
if (starLookat != null)
{
starLookat.Target = this._targetCamera;
}
}
}
}
private void GenerateVerticesForOneStar(StarData starData, int starIndex,
Vector3[] vertices, int[] triangles, Vector2[] uvs)
{
float apparentMagnitudeNormalized = Mathf.InverseLerp(this._apparentMagnitudeDimmest, this._apparentMagnitudeBrightest, starData.apparent_magnitude);
float scaleByBrightness = Mathf.Lerp(this._scaleDimmest, this._scaleBrightest, apparentMagnitudeNormalized) / 2.0f;
// TODO: Remove extra scaling for stars with common names
if (!string.IsNullOrEmpty(starData.common_name))
{
scaleByBrightness *= 2;
}
Vector3 position = StarFieldUtils.GetPositionFromRaDec(starData.right_ascension, starData.declination, STARFIELD_DISTANCE);
Quaternion quaternion = Quaternion.LookRotation(position - this.transform.position);
Vector3 scale = new Vector3(scaleByBrightness, scaleByBrightness, scaleByBrightness);
Matrix4x4 transformMatrix = Matrix4x4.TRS(position, quaternion, scale);
vertices[starIndex * 4 + 0] = transformMatrix.MultiplyPoint3x4(topright);
vertices[starIndex * 4 + 1] = transformMatrix.MultiplyPoint3x4(topleft);
vertices[starIndex * 4 + 2] = transformMatrix.MultiplyPoint3x4(bottomleft);
vertices[starIndex * 4 + 3] = transformMatrix.MultiplyPoint3x4(bottomright);
triangles[starIndex * 6 + 0] = starIndex * 4 + 0;
triangles[starIndex * 6 + 1] = starIndex * 4 + 2;
triangles[starIndex * 6 + 2] = starIndex * 4 + 1;
//
triangles[starIndex * 6 + 3] = starIndex * 4 + 0;
triangles[starIndex * 6 + 4] = starIndex * 4 + 3;
triangles[starIndex * 6 + 5] = starIndex * 4 + 2;
uvs[starIndex * 4 + 0] = new Vector2(1.0f, 1.0f);
uvs[starIndex * 4 + 1] = new Vector2(0.0f, 1.0f);
uvs[starIndex * 4 + 2] = new Vector2(0.0f, 0.0f);
uvs[starIndex * 4 + 3] = new Vector2(1.0f, 0.0f);
// TODO: Add normals if we are going to use any lighting on these?
}
private void SpawnStars()
{
StarData someStar = null;
var enumerator = AppDataModel.Instance.StarsData.GetStarsWithCommonNames().GetEnumerator();
while (enumerator.MoveNext())
{
if (!string.IsNullOrEmpty(enumerator.Current.common_name))
{
someStar = enumerator.Current;
GameObject starGO = PrefabLoader.Instance.InstantiateSynchronous(this._starPrefabPath, this.transform);
starGO.transform.localPosition = StarFieldUtils.GetPositionFromRaDec(someStar.right_ascension,
someStar.declination, this._starfieldDistance);
if (!string.IsNullOrEmpty(someStar.common_name))
{
starGO.name = someStar.common_name;
if (someStar.common_name == "Polaris" || someStar.common_name == "Mintaka")
{
starGO.transform.localScale = new Vector3(10.0f, 10.0f, 10.0f);
}
else
{
starGO.transform.localScale = new Vector3(4.0f, 4.0f, 4.0f);
}
}
Lookat starLookat = starGO.GetComponent <Lookat>();
if (starLookat != null)
{
starLookat.Target = this._targetCamera;
}
}
}
}