// CIRCLE with R=1
public static Vector2 Circle(ref UMT.MersenneTwister _rand)
{
float t = (float)_rand.Next();
float _2pi = (float)Math.PI * 2;
float a = MTRandom.ScaleFloatToRange(t, 0, _2pi, 0, Int32.MaxValue);
return(new Vector2((float)Math.Cos(a), (float)Math.Sin(a)));
}
private static Vector3 PickCubePoints(ref UMT.MersenneTwister _rand)
{
float x = MTRandom.ScaleFloatToRange(_rand.NextSingle(true), -1, 1, 0, 1);
float y = MTRandom.ScaleFloatToRange(_rand.NextSingle(true), -1, 1, 0, 1);
float z = MTRandom.ScaleFloatToRange(_rand.NextSingle(true), -1, 1, 0, 1);
return(new Vector3(x, y, z));
}
/// <summary>
/// Returns a point on the unit sphere that is within a cone along the z-axis
/// </summary>
/// <param name="spotAngle">[0..180] specifies the angle of the cone. </param>
/// <remarks>
/// FROM: http://unifycommunity.com/wiki/index.php?title=UnitSphere
/// </remarks>
public static Vector3 GetPointOnCap(float spotAngle, ref UMT.MersenneTwister _rand)
{
float angle1 = MTRandom.ScaleFloatToRange(_rand.NextSingle(true), 0.0f, Mathf.PI * 2, 0, 1);
float angle2 = MTRandom.ScaleFloatToRange(_rand.NextSingle(true), 0.0f, spotAngle * Mathf.Deg2Rad, 0, 1);
Vector3 V = new Vector3(Mathf.Sin(angle1), Mathf.Cos(angle1), 0);
V *= Mathf.Sin(angle2);
V.z = Mathf.Cos(angle2);
return(V);
}
private void RandomValues()
{
CleanUp();
DebugStreamer.AddMessage("Returns a pseudo-random number between 0.0 [inclusive] and 1.0 [inclusive]");
DebugStreamer.AddMessage("MTRandom mrand = new MTRandom(seed)");
mrand = new MTRandom(user_seed);
DebugStreamer.AddMessage("mrand.value()");
for (int i = 0; i < max_objects; i++)
{
float x = mrand.value();
float x_position = MTRandom.ScaleFloatToRange(x, -2.0f, 2.0f, 0.0f, 1.0f);
GameObject sphere = MakeObject(new Vector3(x_position,x_position,0.0f));
sphere.name = x.ToString();
}
}
public static Vector2 Circle(ref UMT.MersenneTwister _rand, MTRandom.Normalization n, float t)
{
float r;
switch (n)
{
case MTRandom.Normalization.STDNORMAL:
r = MTRandom.ScaleFloatToRange((float)NormalDistribution.Normalize(_rand.NextSingle(true), t), 0, Int32.MaxValue, 0, 1);
break;
case MTRandom.Normalization.POWERLAW:
r = (float)PowerLaw.Normalize(_rand.NextSingle(true), t, 0, Int32.MaxValue);
break;
default:
r = (float)_rand.Next();
break;
}
float _2pi = (float)Math.PI * 2;
float a = MTRandom.ScaleFloatToRange(r, 0, _2pi, 0, Int32.MaxValue);
return(new Vector2((float)Math.Cos(a), (float)Math.Sin(a)));
}