private int DrawLine(Spiral spiral, int nextValue, Point start, Point end)
{
if (start.X < end.X)
{
for (int i = start.X; i <= end.X; i++)
{
spiral.SetValueRelative(i, start.Y, nextValue++);
}
}
else if (start.X > end.X)
{
for (int i = start.X; i >= end.X; i--)
{
spiral.SetValueRelative(i, start.Y, nextValue++);
}
}
if (start.Y < end.Y)
{
for (int i = start.Y; i <= end.Y; i++)
{
spiral.SetValueRelative(start.X, i, nextValue++);
}
}
else if (start.Y > end.Y)
{
for (int i = start.Y; i >= end.Y; i--)
{
spiral.SetValueRelative(start.X, i, nextValue++);
}
}
return nextValue;
}
private void DrawRight(Spiral spiral, int nextValue, int y, int startX, int endX)
{
for (int x = startX; x <= endX; x++)
{
spiral.SetValueRelative(x, y, nextValue++);
}
}
private int DrawUp(Spiral spiral, int nextValue, int x, int startY, int endY)
{
for (int y = startY; y >= endY; y--)
{
spiral.SetValueRelative(x, y, nextValue++);
}
return nextValue;
}
private int DrawLeft(Spiral spiral, int nextValue, int y, int startX, int endX)
{
for (int x = startX; x >= endX; x--)
{
spiral.SetValueRelative(x, y, nextValue++);
}
return nextValue;
}
private void DrawTopOn(Spiral spiral)
{
for (int i = 0; i < _sideLength; i++)
{
spiral.SetValueRelative(_topStartX + i, -_index, _topStartValue + i);
}
}
private void DrawRightOn(Spiral spiral)
{
for (int i = 0; i < _sideLength; i++)
{
spiral.SetValueRelative(_index, _rightStartY + i, _rightStartValue + i);
}
}
private void DrawLeftOn(Spiral spiral)
{
for (int i = 0; i < _sideLength; i++)
{
spiral.SetValueRelative(-_index, _leftStartY - i, _leftStartValue + i);
}
}
private void DrawBottomOn(Spiral spiral)
{
for (int i = 0; i < _sideLength; i++)
{
spiral.SetValueRelative(_bottomStartX - i, _index, _bottomStartValue + i);
}
}
private Spiral PopulateSpiral(Spiral spiral)
{
var offset = spiral.Origin.X;
for (int x = -offset; x <= offset; x++)
{
for (int y = -offset; y <= offset; y++)
{
int valueAtCoordinates = GetValueAt(x, y);
spiral.SetValueRelative(x, y, valueAtCoordinates);
}
}
return spiral;
}
