public static float Generate(float x)
{
int num1 = Noise.FastFloor(x);
int num2 = num1 + 1;
float x1 = x - (float)num1;
float x2 = x1 - 1f;
double num3 = 1.0 - (double)x1 * (double)x1;
double num4 = num3 * num3;
float num5 = (float)(num4 * num4) * Noise.grad((int)Noise.perm[num1 & (int)byte.MaxValue], x1);
double num6 = 1.0 - (double)x2 * (double)x2;
double num7 = num6 * num6;
float num8 = (float)(num7 * num7) * Noise.grad((int)Noise.perm[num2 & (int)byte.MaxValue], x2);
return((float)(0.395000010728836 * ((double)num5 + (double)num8)));
}
public static float Generate(float x, float y)
{
float num1 = (float)(((double)x + (double)y) * 0.366025388240814);
double num2 = (double)x + (double)num1;
float x1 = y + num1;
int num3 = Noise.FastFloor((float)num2);
int num4 = Noise.FastFloor(x1);
int num5 = num4;
float num6 = (float)(num3 + num5) * 0.2113249f;
float num7 = (float)num3 - num6;
float num8 = (float)num4 - num6;
float x2 = x - num7;
float y1 = y - num8;
int num9;
int num10;
if ((double)x2 > (double)y1)
{
num9 = 1;
num10 = 0;
}
else
{
num9 = 0;
num10 = 1;
}
float x3 = (float)((double)x2 - (double)num9 + 0.211324870586395);
float y2 = (float)((double)y1 - (double)num10 + 0.211324870586395);
float x4 = (float)((double)x2 - 1.0 + 0.422649741172791);
float y3 = (float)((double)y1 - 1.0 + 0.422649741172791);
int num11 = 256;
int num12 = num3 % num11;
int index = num4 % 256;
float num13 = (float)(0.5 - (double)x2 * (double)x2 - (double)y1 * (double)y1);
float num14;
if ((double)num13 < 0.0)
{
num14 = 0.0f;
}
else
{
float num15 = num13 * num13;
num14 = num15 * num15 * Noise.grad((int)Noise.perm[num12 + (int)Noise.perm[index]], x2, y1);
}
float num16 = (float)(0.5 - (double)x3 * (double)x3 - (double)y2 * (double)y2);
float num17;
if ((double)num16 < 0.0)
{
num17 = 0.0f;
}
else
{
float num15 = num16 * num16;
num17 = num15 * num15 * Noise.grad((int)Noise.perm[num12 + num9 + (int)Noise.perm[index + num10]], x3, y2);
}
float num18 = (float)(0.5 - (double)x4 * (double)x4 - (double)y3 * (double)y3);
float num19;
if ((double)num18 < 0.0)
{
num19 = 0.0f;
}
else
{
float num15 = num18 * num18;
num19 = num15 * num15 * Noise.grad((int)Noise.perm[num12 + 1 + (int)Noise.perm[index + 1]], x4, y3);
}
return((float)(40.0 * ((double)num14 + (double)num17 + (double)num19)));
}
