public static NoiseGenerator createInstance(NoiseGenerationType type, double parameter)
{
switch (type)
{
case NoiseGenerationType.constantUniform:
return(new ConstantUniformNoiseGenerator(parameter));
case NoiseGenerationType.ProportionalUniform:
return(new ProportionalUniformNoiseGenerator(parameter));
case NoiseGenerationType.ConstantNormal:
return(new ConstantNormalNoiseGenerator(parameter));
case NoiseGenerationType.ProportionalNormal:
return(new ProportionalNormalNoiseGenerator(parameter));
default:
return(null);
break;
}
}
//Operates in place
protected void AddPerlinNoise(List <NavigablePoint> points, float octave, float scale, NoiseGenerationType genType = NoiseGenerationType.Smooth, Vector2?seed = null)
{
if (seed.HasValue == false)
{
seed = new Vector2(Random.Range(-1000f, 1000f), Random.Range(-1000f, 1000f));
}
points.ForEach(p =>
{
float noise = Mathf.PerlinNoise((p.GridPosition.x * octave) + seed.Value.x, (p.GridPosition.y * octave) + seed.Value.y) * scale;
if (genType == NoiseGenerationType.Ridged)
{
//Sink so midpoint is zero
noise -= scale / 2;
noise = -Mathf.Abs(noise);
noise += scale / 2;
}
p.Position = new Vector3()
{
x = p.Position.x,
y = p.Position.y + noise,
z = p.Position.z
};
});
}
//Operates in place
protected void AddPerlinNoise(List <NavigablePoint> points, PerlinNoiseIterationArgs args, NoiseGenerationType genType = NoiseGenerationType.Smooth, Vector2?seed = null)
{
float octave = args.startingOctave;
float res = args.startingScale;
for (int i = 0; i < args.iterations; i++)
{
AddPerlinNoise(points, octave, res, genType);
octave *= args.octaveIterationModifier;
res *= args.scaleIterationModifier;
}
}