public (SimpleCoordinates, SimpleCoordinates) mergeWith(
SimpleCoordinates that)
{
SimpleCoordinates withThisX = new SimpleCoordinates(this.x, that.y);
SimpleCoordinates withThisY = new SimpleCoordinates(that.x, this.y);
return(withThisX, withThisY);
}
private void drawStreetsAroundIn(SimpleCoordinates divisionCoordinates,
Rect rect)
{
drawStreetBetweenAt(Defs.horizontal, rect.lowerBound.x,
rect.upperBound.x, divisionCoordinates.y);
drawStreetBetweenAt(Defs.vertical, rect.lowerBound.y,
rect.upperBound.y, divisionCoordinates.x);
this.map[divisionCoordinates.y, divisionCoordinates.x] += 2;
}
public (Rect, Rect, Rect, Rect) divideAt(
SimpleCoordinates divisionCoordinates)
{
(SimpleCoordinates, SimpleCoordinates)lowerMerge =
this.lowerBound.mergeWith(divisionCoordinates);
(SimpleCoordinates, SimpleCoordinates)upperMerge =
divisionCoordinates.mergeWith(this.upperBound);
Rect secondQuadrant = new Rect(lowerBound, divisionCoordinates);
Rect thirdQuadrant = new Rect(lowerMerge.Item1, upperMerge.Item1);
Rect firstQuadrant = new Rect(lowerMerge.Item2, upperMerge.Item2);
Rect forthQuadrant = new Rect(divisionCoordinates, upperBound);
return(firstQuadrant, secondQuadrant, thirdQuadrant, forthQuadrant);
}
private void makeSubMapQuadrantsOn(Rect rect)
{
if (!rect.canBeDividedWithAtLeast(this.minSpaceBetweenStreets) ||
!DivisionPoint.hasDivisionWithNoAdjacentStreets(rect))
{
return;
}
SimpleCoordinates divisionCoordinates = getDivisionCoordinates(rect);
drawStreetsAroundIn(divisionCoordinates, rect);
(Rect firstQuadrant, Rect secondQuadrant, Rect thirdQuadrant,
Rect fourthQuadrant) = rect.divideAt(divisionCoordinates);
// Order matters here! Otherwise checking adjacent street corners may fail.
makeSubMapQuadrantsOn(secondQuadrant);
makeSubMapQuadrantsOn(thirdQuadrant);
makeSubMapQuadrantsOn(firstQuadrant);
makeSubMapQuadrantsOn(fourthQuadrant);
}
public Rect(uint xInit, uint yInit, uint xEnd, uint yEnd)
{
this.lowerBound = new SimpleCoordinates(xInit, yInit);
this.upperBound = new SimpleCoordinates(xEnd, yEnd);
}
public Rect(
SimpleCoordinates lowerBound, SimpleCoordinates upperBound)
{
this.lowerBound = lowerBound;
this.upperBound = upperBound;
}