public static float Get(float x, float y, float frequency)
{
// TEMP
if (Math.Abs(x) < TOLERANCE && Math.Abs(y) < TOLERANCE)
{
permutation = new PermutationTable(UnityEngine.Random.Range(int.MinValue, int.MaxValue));
}
x *= frequency;
y *= frequency;
var intPartX = Mathf.FloorToInt(x);
var intPartY = Mathf.FloorToInt(y);
var floatPartX = x - intPartX;
var floatPartY = y - intPartY;
var inverseX = floatPartX - 1;
var inverseY = floatPartY - 1;
var tX = Fade(floatPartX);
var tY = Fade(floatPartY);
var num1 = Grad(permutation[intPartX, intPartY], floatPartX, floatPartY);
var num2 = Grad(permutation[intPartX, intPartY + 1], floatPartX, inverseY);
var value1 = Mathf.Lerp(num1, num2, tY);
var num3 = Grad(permutation[intPartX + 1, intPartY], inverseX, floatPartY);
var num4 = Grad(permutation[intPartX + 1, intPartY + 1], inverseX, inverseY);
var value2 = Mathf.Lerp(num3, num4, tY);
var value = Mathf.Lerp(value1, value2, tX);
return(Map(value, -1, 1, 0, 1));
}
public PerlinNoise(int seed, float frequency, float amplitude = 1.0f)
{
Frequency = frequency;
Amplitude = amplitude;
Offset = Vector3.zero;
Perm = new PermutationTable(1024, 255, seed);
}
static void GeneratePermutationTable(
PermutationTable table,
string entityName = "ENTITY_NAME",
string architectureName = "ARCHITECTURE_NAME")
{
switch (table)
{
case PermutationTable.IP:
var ip = TableValues.IP();
var ipResult = InitPermutationTableHeader(64, 64, entityName, architectureName);
ipResult = GeneratePermutationTableAssignments(ip, ipResult);
ipResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "IP.vhd", ipResult);
break;
case PermutationTable.IPInv:
var ipInv = TableValues.IPInv();
var ipInvResult = InitPermutationTableHeader(64, 64, entityName, architectureName);
ipInvResult = GeneratePermutationTableAssignments(ipInv, ipInvResult);
ipInvResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "IPInv.vhd", ipInvResult);
break;
case PermutationTable.P:
var p = TableValues.P();
var pResult = InitPermutationTableHeader(32, 32, entityName, architectureName);
pResult = GeneratePermutationTableAssignments(p, pResult);
pResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "P.vhd", pResult);
break;
case PermutationTable.PC1:
var pc1 = TableValues.PC1();
var pc1Result = InitPermutationTableHeader(64, 56, entityName, architectureName);
pc1Result = GeneratePermutationTableAssignments(pc1, pc1Result);
pc1Result.Add($"end {architectureName};");
File.WriteAllLines(_path + "PC1.vhd", pc1Result);
break;
case PermutationTable.PC2:
var pc2 = TableValues.PC2();
var pc2Result = InitPermutationTableHeader(56, 48, entityName, architectureName);
pc2Result = GeneratePermutationTableAssignments(pc2, pc2Result);
pc2Result.Add($"end {architectureName};");
File.WriteAllLines(_path + "PC2.vhd", pc2Result);
break;
}
}
