51 lines
933 B
C#
51 lines
933 B
C#
|
public class e2dPerlinNoise
|
|||
|
|
{
|
|||
|
|
public e2dPerlinNoise(int octaves, float amplitude, int frequency, float persistence)
|
|||
|
|
{
|
|||
|
|
this.mOctavesCount = octaves;
|
|||
|
|
if (frequency < 2)
|
|||
|
|
{
|
|||
|
|
frequency = 2;
|
|||
|
|
}
|
|||
|
|
if (amplitude <= 0f)
|
|||
|
|
{
|
|||
|
|
amplitude = 0.1f;
|
|||
|
|
}
|
|||
|
|
if (this.mOctavesCount < 1)
|
|||
|
|
{
|
|||
|
|
this.mOctavesCount = 1;
|
|||
|
|
}
|
|||
|
|
int num = frequency;
|
|||
|
|
float num2 = amplitude;
|
|||
|
|
this.mOctaves = new e2dPerlinOctave[this.mOctavesCount];
|
|||
|
|
for (int i = 0; i < this.mOctavesCount; i++)
|
|||
|
|
{
|
|||
|
|
this.mOctaves[i] = new e2dPerlinOctave(num2, num);
|
|||
|
|
num2 *= persistence;
|
|||
|
|
num *= 2;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Regenerate()
|
|||
|
|
{
|
|||
|
|
for (int i = 0; i < this.mOctavesCount; i++)
|
|||
|
|
{
|
|||
|
|
this.mOctaves[i].Regenerate();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public float GetValue(float x)
|
|||
|
|
{
|
|||
|
|
float num = 0f;
|
|||
|
|
for (int i = 0; i < this.mOctavesCount; i++)
|
|||
|
|
{
|
|||
|
|
num += this.mOctaves[i].GetValue(x);
|
|||
|
|
}
|
|||
|
|
return num;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private int mOctavesCount;
|
|||
|
|
|
|||
|
|
private e2dPerlinOctave[] mOctaves;
|
|||
|
|
}
|