// this should make it easier to draw the road borders
// by making it relative to a road secion
public void AddLineNode(MglrRoadSection reference, int xOff, int yOff)
{
int newX = reference.x + xOff;
int newY = reference.y + yOff;
if (keyNodes.Count == 0)
{
keyNodes.Add(new MglrRoadBorderLine()
{
x1 = newX, y1 = newY
});
}
else
{
var lastLine = keyNodes.Last();
lastLine.x2 = newX;
lastLine.y2 = newY;
keyNodes.Add(new MglrRoadBorderLine()
{
x1 = newX, y1 = newY
});
}
}
private List <MglrRoadSection> InterpolateTwo(MglrRoadSection first, MglrRoadSection second)
{
List <MglrRoadSection> result = new List <MglrRoadSection>();
int dy = second.y - first.y;
int dx = second.x - first.x;
double dist = Math.Sqrt(dy * dy + dx * dx);
// assume the radius of the road-circle block is always non zero
int width = second.r * 2;
int blockNumber = (int)Math.Ceiling(dist / width);
for (int j = 0; j < blockNumber; j++)
{
double deltaX = (double)dx / blockNumber;
double deltaY = (double)dy / blockNumber;
result.Add(new MglrRoadSection()
{
r = second.r,
x = (int)(first.x + deltaX * j),
y = (int)(first.y + deltaY * j)
});
}
return(result);
}
