public Heightmap(Heightmap parentHeightmap, Vector2Int offset, Vector2Int size, float remap, float baseLevel)
{
// Initialise our dimensions and allocate the necessary memory...
Size = size;
Remap = remap;
Base = baseLevel;
m_NormalisedHeights = GenerateBlendedHeightDataFromParent(parentHeightmap, offset, size);
}
private float[,] GenerateExactHeightDataFromParent(Heightmap parentHeightmap, Vector2Int offset, Vector2Int size)
{
float[,] parentHeightData = parentHeightmap.m_NormalisedHeights;
float[,] normalisedHeights = new float[size.y, size.x];
// Copy the height data from our parent height-map...
for (int y = 0; y < size.y; y++)
{
for (int x = 0; x < size.x; x++)
{
int parentX = offset.x + x;
int parentY = offset.y + y;
float parentHeight = parentHeightData[parentY, parentX];
m_NormalisedHeights[y, x] = parentHeight;
}
}
return(normalisedHeights);
}
private float[,] GenerateBlendedHeightDataFromParent(Heightmap parentHeightmap, Vector2Int offset, Vector2Int size)
{
float[,] normalisedHeights = new float[size.y + 1, size.x + 1];
Vector2 parentOffset = new Vector2(0.0f, offset.y); // - 0.5f);
int width = size.x;
int height = size.y;
// Copy the height data from our parent height-map...
for (int y = 0; y <= height; y++, parentOffset.y++)
{
parentOffset.x = offset.x; // - 0.5f;
for (int x = 0; x <= width; x++, parentOffset.x++)
{
float parentHeight = parentHeightmap.GetNormalisedHeightAt(parentOffset);
normalisedHeights[y, x] = parentHeight * Remap + Base;
}
}
return(normalisedHeights);
}
