public static INoiseArray2 <float> NormalizeSymmetric(this INoiseArray2 <float> map)
{
float min;
float max;
MinMax(map, out min, out max);
if (1 - max < min)
{
min = 1 - max;
}
if (max < 1 - min)
{
max = 1 - min;
}
float length = max - min;
if (length == 0)
{
return(map);
}
float factor = 1 / length;
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
map[x, y] = (map[x, y] - min) * factor;
}
}
return(map);
}
public static INoiseArray2<float> Add(this INoiseArray2<float> map, INoiseArray2<float> other)
{
for (int y = 0; y < map.Height; y++)
for (int x = 0; x < map.Width; x++)
map[x, y] += other[x, y];
return map;
}
public static void CopyTo(this INoiseArray2 <float> map, INoiseArray2 <float> destination)
{
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
destination[x, y] = map[x, y];
}
}
}
public static INoiseArray2 <float> Add(this INoiseArray2 <float> map, INoiseArray2 <float> other)
{
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
map[x, y] += other[x, y];
}
}
return(map);
}
//public static IMap<float> Transform(this IMap<float> map, Func<float, float> operation)
//{
// for (int y = 0; y < map.Height; y++)
// for (int x = 0; x < map.Width; x++)
// map[x, y] = operation(map[x, y]);
// return map;
//}
public static INoiseArray2 <float> Fill(this INoiseArray2 <float> map, float value)
{
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
map[x, y] = value;
}
}
return(map);
}
public static float Max(this INoiseArray2 <float> map, int startX, int startY, int sizeX, int sizeY)
{
float max = float.MinValue;
for (int y = 0; y < sizeY; y++)
{
for (int x = 0; x < sizeX; x++)
{
max = Math.Max(max, map[x + startX, y + startY]);
}
}
return(max);
}
public static void MinMax(this INoiseArray2 <float> map, int startX, int startY, int sizeX, int sizeY, out float min, out float max)
{
min = float.MaxValue;
max = float.MinValue;
for (int y = 0; y < sizeY; y++)
{
for (int x = 0; x < sizeX; x++)
{
var v = map[x + startX, y + startY];
min = Math.Min(min, v);
max = Math.Max(max, v);
}
}
}
public static INoiseArray2 <float> Multiply(this INoiseArray2 <float> map, float factor)
{
if (factor == 1)
{
return(map);
}
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
map[x, y] *= factor;
}
}
return(map);
}
public static INoiseArray2 <float> Normalize(this INoiseArray2 <float> map)
{
float min;
float max;
MinMax(map, out min, out max);
float length = max - min;
if (length == 0 || length == 1)
{
return(map);
}
float factor = 1 / length;
return(Multiply(map, factor));
}
public static INoiseArray2 <float> Clamp(this INoiseArray2 <float> map, float min, float max)
{
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
var v = map[x, y];
if (v < min)
{
map[x, y] = min;
}
else if (max < v)
{
map[x, y] = max;
}
}
}
return(map);
}
public static void CopyTo(this INoiseArray2<float> map, INoiseArray2<float> destination)
{
for (int y = 0; y < map.Height; y++)
for (int x = 0; x < map.Width; x++)
destination[x, y] = map[x, y];
}
public static void MinMax(this INoiseArray2 <float> map, out float min, out float max)
{
MinMax(map, 0, 0, map.Width, map.Height, out min, out max);
}
public static float Max(this INoiseArray2 <float> map)
{
return(Max(map, 0, 0, map.Width, map.Height));
}
public static INoiseArray2 <float> Clamp(this INoiseArray2 <float> map)
{
return(Clamp(map, 0, 1));
}
