public static IsLandShapeGen MakeRadial(uint seed)
{
ParkMillerRNG isLandRandom = new ParkMillerRNG();
isLandRandom.Seed = seed;
uint bumps = isLandRandom.NextIntRange(1, 6);
double startAngle = isLandRandom.NextDoubleRange(0, 2 * Mathf.PI);
double dipAngle = isLandRandom.NextDoubleRange(0, 2 * Mathf.PI);
double dipWidth = isLandRandom.NextDoubleRange(0.2, 0.7);
bool inside(Vector2f q)
{
double angle = Mathf.Atan2(q.y, q.x);
float max = Mathf.Max(Mathf.Abs(q.x), Mathf.Abs(q.y));
float length = 0.5f * (max + q.magnitude);
double f = bumps + 3.0f;
double r1 = 0.5f + 0.40f * System.Math.Sin(startAngle + bumps * angle + System.Math.Cos(f * angle));
double r2 = 0.7 - 0.20 * System.Math.Sin(startAngle + bumps * angle - System.Math.Sin((bumps + 2) * angle));
if (System.Math.Abs(angle - dipAngle) < dipWidth ||
System.Math.Abs(angle - dipAngle + 2 * System.Math.PI) < dipWidth ||
System.Math.Abs(angle - dipAngle - 2 * System.Math.PI) < dipWidth)
{
r1 = r2 = 0.2;
}
return(length < r1 || (length > r1 * ISLAND_FACTOR && length < r2));
}
IsLandShapeGen islandShapeGen = inside;
return(islandShapeGen);
}
public static IsLandShapeGen MakeSquare(uint seed)
{
bool inside(Vector2f q)
{
return(true);
}
IsLandShapeGen isLandShapeGen = inside;
return(isLandShapeGen);
}
public static IsLandShapeGen MakePerlin(uint seed)
{
bool inside(Vector2f q)
{
float px = (q.x + 1) * 128;
float py = (q.y + 1) * 128;
double c = Mathf.PerlinNoise(px + seed, py + seed);
return(c > (0.3 + 0.3 * q.magnitude * q.magnitude));
}
IsLandShapeGen islandShapeGen = inside;
return(islandShapeGen);
}
public void NewIsLand(IsLandShapeType islandType, PointType pointType, int numPoints, uint seed, uint variant)
{
switch (islandType)
{
case IsLandShapeType.Perlin:
IslandShapeGen = IsLandShape.MakePerlin(seed);
break;
case IsLandShapeType.Radial:
IslandShapeGen = IsLandShape.MakeRadial(seed);
break;
case IsLandShapeType.Square:
IslandShapeGen = IsLandShape.MakeSquare(seed);
break;
default:
break;
}
switch (pointType)
{
case PointType.Random:
PointSelectorGen = PointSelector.generateRandom(MapSize, seed);
break;
case PointType.Relaxed:
PointSelectorGen = PointSelector.generateRelaxed(MapSize, seed);
break;
case PointType.Square:
PointSelectorGen = PointSelector.generateSquare(MapSize, seed);
break;
case PointType.Hexagon:
PointSelectorGen = PointSelector.generateHexagon(MapSize, seed);
break;
default:
break;
}
NeedsMoreRandomness = PointSelector.needsMoreRandomness(pointType);
NumPoints = numPoints;
ParkMillerRng.Seed = variant;
}