public static void renderCircleSlowNotAntialiased(Map2dFloat map, int x, int y, float radius)
{
for (int relativeY = (int)-radius; relativeY < (int)radius; relativeY++)
{
for (int relativeX = (int)-radius; relativeX < (int)radius; relativeX++)
{
float distance = (float)Math.Sqrt(relativeX * relativeX + relativeY * relativeY);
// anti aliasing
float value = distance < radius ? 1.0f : 0.0f; // no antialiasing
if (value == 0.0f)
{
continue;
}
if (!map.isInRange(y + relativeY, x + relativeX))
{
continue;
}
map[y + relativeY, x + relativeX] = value;
}
}
}
public float sample(Map2dFloat map, int offsetY, int offsetX)
{
float sum = 0.0f;
for (int relativeY = 0; relativeY < size; relativeY++)
{
for (int relativeX = 0; relativeX < size; relativeX++)
{
int x = offsetX + relativeOffsetOfTopLeftCornerX + relativeX;
int y = offsetY + relativeOffsetOfTopLeftCornerY + relativeY;
if (map.isInRange(y, x))
{
sum += map[y, x];
}
}
}
sum = sum / (float)(size * size);
return(sum);
}