// Use this for initialization
void Start()
{
// round position properly
Vector3 myPosition = this.transform.position;
myPosition.x = Mathf.Round(myPosition.x);
myPosition.y = Mathf.Round(myPosition.y);
myPosition.z = Mathf.Round(myPosition.z);
this.transform.position = myPosition;
powerupGenerate = new RandomXORShift();
powerupGenerate.seed = seed;
// generate level
Generate();
}
// Perlin Noise Function
public float PerlinNoiseGenerate(float point1, float point2)
{
//setup variables (more boring stuff)
float valReturn = 0;
float interpolate1;
float interpolate2;
float interpolated;
int res = resolution;
RandomXORShift rand1 = new RandomXORShift();
RandomXORShift rand2 = new RandomXORShift();
RandomXORShift rand3 = new RandomXORShift();
RandomXORShift rand4 = new RandomXORShift();
// Loop to get the data from each octave
for (int ctr = 1; ctr < detail; ctr++)
{
// make boxes smaller each octave
res = res / 2;
rand1.seed = seed + Mathf.RoundToInt((Mathf.FloorToInt(point1 / res) * -7) + (Mathf.FloorToInt(point2 / res) * 3));
rand2.seed = seed + Mathf.RoundToInt((Mathf.FloorToInt((point1 + res) / res) * -7) + (Mathf.FloorToInt(point2 / res) * 3));
rand3.seed = seed + Mathf.RoundToInt((Mathf.FloorToInt(point1 / res) * -7) + (Mathf.FloorToInt((point2 + res) / res) * 3));
rand4.seed = seed + Mathf.RoundToInt((Mathf.FloorToInt((point1 + res) / res) * -7) + (Mathf.FloorToInt((point2 + res) / res) * 3));
// interpolation
interpolate1 = RandomXORShift.interpolateCosine(rand1.range(0, 2), rand2.range(0, 2), point1 - (Mathf.FloorToInt(point1 / res) * res), res);
interpolate2 = RandomXORShift.interpolateCosine(rand3.range(0, 2), rand4.range(0, 2), point1 - (Mathf.FloorToInt(point1 / res) * res), res);
interpolated = RandomXORShift.interpolateCosine(interpolate1, interpolate2, point2 - (Mathf.FloorToInt(point2 / res) * res), res);
// add octave value to point; each octave has half as much influence as the one before it
valReturn += interpolated * Mathf.Pow(2, -ctr);
}
return(valReturn);
}