public static void Calculate(IntVector2 viewerLocation, int visionRange, Grid2D <bool> visibilityMap, IntSize2 mapSize,
Func <IntVector2, bool> blockerDelegate)
{
visibilityMap.Clear();
if (blockerDelegate(viewerLocation) == true)
{
return;
}
var g = new IntGrid2(new IntVector2(), mapSize);
g = g.Offset(-viewerLocation.X, -viewerLocation.Y);
var vr = new IntVector2(visionRange, visionRange);
g = g.Intersect(new IntGrid2(vr, -vr));
int visionRangeSquared = (visionRange + 1) * (visionRange + 1); // +1 to get a bit bigger view area
foreach (var dst in g.Range())
{
if (dst.X * dst.X + dst.Y * dst.Y > visionRangeSquared)
{
continue;
}
bool vis = FindLos(viewerLocation, dst, blockerDelegate);
visibilityMap[dst] = vis;
}
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value == null)
{
throw base.GetConvertFromException(value);
}
string source = value as string;
if (source == null)
{
return(base.ConvertFrom(context, culture, value));
}
return(IntGrid2.Parse(source));
}
public IntGrid2Z(IntGrid2 rect, int z)
{
m_grid = rect;
m_z = z;
}
public IntGrid2Z(IntVector2 point1, IntVector2 point2, int z)
{
m_grid = new IntGrid2(point1, point2);
m_z = z;
}
public IntGrid2Z(int x, int y, int columns, int rows, int z)
{
m_grid = new IntGrid2(x, y, columns, rows);
m_z = z;
}
public IntGrid3(IntGrid2 rect, int z)
: this(rect.X, rect.Y, z, rect.Columns, rect.Rows, 1)
{
}