public FilledRegion Apply(FillData data)
{
float OuterCircle = data.BeingFilled.Width * 0.5f;
if (OuterCircle <= InnerCircle)
{
throw new ArgumentOutOfRangeException("The outer radius has to be larger than the inner radius!");
}
Location center = data.BeingFilled.Center;
//Make the circles.
data.FillCircle(true, center, OuterCircle);
data.FillCircle(false, center, InnerCircle);
//Make the lines to get to the inner circle.
data.FillLine(false, center, data.BeingFilled.BottomMid);
data.FillLine(false, center, data.BeingFilled.TopMid);
data.FillLine(false, center, data.BeingFilled.LeftMid);
data.FillLine(false, center, data.BeingFilled.RightMid);
//For spawn points, give the two points just to the left/right of the inner circle.
return(new CircleRegion(data.BeingFilled, InnerCircle));
}
public FilledRegion Apply(FillData data)
{
//Keep track of the spawn areas above the steps, indexed by y coordinate.
Dictionary <int, Region> platformSpaces = new Dictionary <int, Region>();
//Get step data.
int stepWidth = (int)Math.Round(StepSizeScale * (data.BeingFilled.Width + 1), 0);
int spaceWidth = data.BeingFilled.Width + 1 - stepWidth - stepWidth;
bool left = true;
Location line1, line2;
for (int y = data.BeingFilled.Bottom - 1; y > data.BeingFilled.Top; y -= Space)
{
//Fill the line.
if (left)
{
line1 = new Location(data.BeingFilled.Left, y);
line2 = new Location(data.BeingFilled.Left + stepWidth - 1, y);
data.FillLine(true, line1, line2);
platformSpaces.Add(y, new Region(line1, line2, true));
}
else
{
line1 = new Location(data.BeingFilled.Left + stepWidth + spaceWidth, y);
line2 = new Location(data.BeingFilled.Right, y);
data.FillLine(true, line1, line2);
platformSpaces.Add(y, new Region(line1, line2, true));
}
//Change sides.
left = !left;
}
//Free any holes.
foreach (Location l in data.HolesAlongPerimeter())
{
//If the hole is on the left side and there's a platform in the way:
if (data.BeingFilled.Touches(l.Right, true, true, false) &&
data.GetMapAt(l.Right))
{
//Remove the left edge of the platform.
data.SetMapAt(l.Right, false);
Region r = platformSpaces[l.Y];
++r.X;
--r.Width;
platformSpaces[l.Y] = r;
}
//Otherwise, if the hole is on the right side and there's a platform in the way:
else if (data.BeingFilled.Touches(l.Left, true, true, false) &&
data.GetMapAt(l.Left))
{
//Remove the right edge of the platform.
data.SetMapAt(l.Left, false);
Region r = platformSpaces[l.Y];
--r.Width;
platformSpaces[l.Y] = r;
}
}
return(new AlternatingStepsRegion(data.BeingFilled, platformSpaces.Values));
}
