/// <summary>
/// １次元パーリンノイズを生成する
/// </summary>
/// <param name="x">x座標</param>
/// <returns>波形の高さ</returns>
public float Noise(float x)
{
// 整数部分と小数部分に分ける
float fx = x % 1;
int ix = (int)x;
float wave = PerlinNoise1D.Wavelet(fx, Random.GetSmallRandom(unchecked (this.seed + ix)));
float nextWave = PerlinNoise1D.Wavelet(fx - 1f, Random.GetSmallRandom(unchecked (this.seed + ix + 1)));
return(Mathf.Lerp(wave, nextWave, fx));
}
// Use this for initialization
/// <summary>
/// Starts this instance.
/// </summary>
private void Start()
{
var perlin = new TGM.Lib.Math.PerlinNoise1D(this.seed);
var line = this.GetOrAddComponent <LineRenderer>();
line.positionCount = this.maxStep;
for (int i = 0; i < this.maxStep; i++)
{
float x = this.accuracy * (float)i;
float value = perlin.Noise(x) * this.amplitude;
line.SetPosition(i, new Vector3(x * this.width, 0f, value));
}
}
