| public static interpolateLinear ( float v1, float v2, float fraction ) : float | ||
| v1 | float | |
| v2 | float | |
| fraction | float | |
| return | float | |
public RiverBuilder GenerateRiver(float waterlevel, int seed, out List <PathFinderNode> RiverPath)
{
float oldDelta = chan.getMaxDelta();
RiverPath = new List <PathFinderNode>();
//Start = FindStartPoint(DateTime.Now.Millisecond%4);
//End = FindEndPoint((DateTime.Now.Millisecond+1)%4);
Random r = new Random(seed);
List <Point> StartPoints = new List <Point>();
float max = chan.findMax();
float min = chan.findMin();
float inv = 1f / (max - min);
waterlevel = Tools.interpolateLinear(0f, 1f, (20f - 0f) * (1f / (45f - 0f)));
float maxoffset = Tools.interpolateLinear(0f, 1f, (5f - 0f) * (1f / (45f - 0f)));
// Source can spawn >5m ASL, but must be >10m
// from the highest altitude on the map.
chan.normalize(); // stretch it the fsck out.
Start = FindStartPoint(0);
End = FindEndPoint(2);
Console.WriteLine(" * Generating river, s={0}, e={1}.", Start, End);
List <PathFinderNode> p = FindPath(Start, End); //,seed,20f);
if (p == null)
{
Console.WriteLine(" ! Unable to retrieve path..");
return(this);
}
CleanPath(p);
CreateBank(p);
//CleanupFloodplain();
Console.WriteLine(" * Maximum terrain delta: {0}", chan.getMaxDelta());
chan.setMaxDelta(oldDelta / 2f);
Console.WriteLine(" * Adjusted terrain delta: {0}", chan.getMaxDelta());
chan.smooth(1); // CleanupFloodplain is broken, dunno why.
RiverPath = p;
return(this);
}
public Layer normalize(float new_min, float new_max)
{
float min_r = r.findMin();
float min_g = g.findMin();
float min_b = b.findMin();
float max_r = r.findMax();
float max_g = g.findMax();
float max_b = b.findMax();
float min = Math.Min(min_r, Math.Min(min_g, min_b));
float max = Math.Max(max_r, Math.Max(max_g, max_b));
min_r = Tools.interpolateLinear(new_min, new_max, (min_r - min) / (max - min));
min_g = Tools.interpolateLinear(new_min, new_max, (min_g - min) / (max - min));
min_b = Tools.interpolateLinear(new_min, new_max, (min_b - min) / (max - min));
max_r = Tools.interpolateLinear(new_min, new_max, (max_r - min) / (max - min));
max_g = Tools.interpolateLinear(new_min, new_max, (max_g - min) / (max - min));
max_b = Tools.interpolateLinear(new_min, new_max, (max_b - min) / (max - min));
r.normalize(min_r, max_r);
g.normalize(min_g, max_g);
b.normalize(min_b, max_b);
return(this);
}
