/// <summary>
/// Get all neighbours that havent been traversed
/// </summary>
private List <Vector2Int> GetNeighbours(int x, int y)
{
// get all neighbour cells
List <Vector2Int> neighbours = maze.GetCellsAtEdge(new Vector2Int(x, y), wallSpacing, includeDiagonals);
// remove all cells that have been traversed
neighbours = neighbours.FindAll(n => maze[n] == 0);
// apply mask (if there is one)
if (mask != null)
{
List <Vector2Int> maskedNeighbours = new List <Vector2Int>();
for (int i = neighbours.Count - 1; i >= 0; i--)
{
if (mask.IsInsideBounds(neighbours[i]))
{
if (mask[neighbours[i]] > 0)
{
maskedNeighbours.Add(neighbours[i]);
}
}
}
return(maskedNeighbours);
}
else
{
return(neighbours);
}
}
/// <summary>
/// Subtracts two Value Maps
/// </summary>
public ValueMap Subtract(ValueMap map)
{
var output = Clone();
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
if (map.IsInsideBounds(x, y))
{
output.values[x, y] = values[x, y] - map.values[x, y];
}
}
}
return(output);
}
/// <summary>
/// Multiplies two Value Maps
/// </summary>
public ValueMap Multiply(ValueMap map)
{
ValueMap output = Clone();
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
if (map.IsInsideBounds(x, y))
{
output.values[x, y] = values[x, y] * map.values[x, y];
}
}
}
return(output);
}
/// <summary>
/// Uses another ValueMap to mask this one, values less then or equal to zero are treated as masked
/// </summary>
public ValueMap ApplyMask(ValueMap mask, float threshold)
{
ValueMap output = Clone();
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
if (mask.IsInsideBounds(x, y))
{
if (mask[x, y] <= threshold)
{
output[x, y] = 0;
}
}
}
}
return(output);
}