private HeightMap CreateHeightMap(GameStartupSettings settings)
{
HeightMap heightmap = new HeightMap(256, HeightMap.Overlap / 2, HeightMap.Overlap / 2);
heightmap.MakeFlat(0.1f);
heightmap.SetNoise(0.22f); // 0.3 makes smaller structure, 0.1 makes blobs
heightmap.Erode(10);
heightmap.Smoothen();
//heightmap.Smoothen();
return heightmap;
}
public void Create(GameStartupSettings settings)
{
Random rnd = new Random();
log.DebugFormat("Create( {0} )", settings);
HeightMap heightmap = CreateHeightMap(settings);
float seaLevel = heightmap.FindHeightLevel(settings.OceanRatio * 1.5f, 0.05f); // <-- Values from settings
float shoreLevel = heightmap.FindHeightLevel(settings.OceanRatio, 0.05f); // <-- Values from settings
float hillLevel = heightmap.FindHeightLevel(0.1f, 0.01f); // <-- Values from settings
float mountainLevel = heightmap.FindHeightLevel(settings.PeakRatio, 0.01f); // <-- Values from settings
OnProgress(new ProgressNotificationEventArgs(string.Format("Min: {0}, Sea: {1}, shoreLevel: {2}, mountain: {3}, max: {4}", heightmap.Minimum, seaLevel, shoreLevel, mountainLevel, heightmap.Maximum), 1f, 0.1f));
Init(settings.Width, settings.Height);
// assign coords
for (int i = 0; i < settings.Width; ++i)
{
for (int j = 0; j < settings.Height; ++j)
{
this[i, j].Height = heightmap[i, j];
}
}
Terrain ocean = Provider.Instance.Terrains["Ocean"];
Terrain shore = Provider.Instance.Terrains["Shore"]; // Shore
Terrain coast = Provider.Instance.Terrains["Coast"];
Terrain grassland = Provider.Instance.Terrains["Grassland"];
Feature hills = Provider.Instance.Features["Hills"];
Feature mountains = Provider.Instance.Features["Mountains"];
// settle ground plains (ocean, grassland, mountain)
RangeConversion<float, Terrain> conv = new RangeConversion<float, Terrain>(grassland);
conv.AddMapping(heightmap.Minimum, seaLevel, ocean);
conv.AddMapping(seaLevel, shoreLevel, shore);
conv.AddMapping(shoreLevel, hillLevel, grassland);
//conv.AddMapping(hillLevel, mountainLevel, hill);
//conv.AddMapping(mountainLevel, heightmap.Maximum, mountain);
for (int i = 0; i < settings.Width; ++i)
{
for (int j = 0; j < settings.Height; ++j)
{
this[i, j].Terrain = conv.Find(heightmap[i, j]);
if(hillLevel <= heightmap[i,j] && heightmap[i,j] < mountainLevel)
this[i, j].Features.Add(hills);
else if(mountainLevel <= heightmap[i,j])
this[i, j].Features.Add(mountains);
}
}
OnProgress(new ProgressNotificationEventArgs("Basic Terrain Assignment", 1f, 0.2f));
// find coasts
for (int i = 0; i < settings.Width; ++i)
{
for (int j = 0; j < settings.Height; ++j)
{
if (this[i, j].IsOcean)
{
if (ShouldBeCoast(i, j))
this[i, j].Terrain = coast;
}
}
}
OnProgress(new ProgressNotificationEventArgs("Find Coasts: " + GetArea(a => a.IsOcean).Count + " ocean tiles, " + GetArea(a => a.IsLand).Count + " land tiles", 1f, 0.3f));
// find river tiles
List<MapCell> hillsOrMountains = GetArea(a => a.IsSpring);
int currentRiverId = 0;
int numOfRivers = Math.Min(hillsOrMountains.Count, settings.NumOfRivers);
Array corners = Enum.GetValues(typeof(HexCorner));
while( currentRiverId < numOfRivers)
{
MapCell spring = hillsOrMountains.PickRandom();
HexCorner randomCorner = (HexCorner)corners.GetValue(rnd.Next(corners.Length));
HexPointCorner hxc = new HexPointCorner { Corner = randomCorner, Point = spring.Point };
HexPointFlow[] flows = GetFlowByCorner(hxc);
River currentriver = new River(string.Format("River{0}", currentRiverId));
Rivers.Add(currentriver);
DoRiver(flows[rnd.Next(3)], hxc, currentriver, 0);
currentRiverId++;
}
OnProgress(new ProgressNotificationEventArgs("Add Rivers: " + GetArea(a => a.IsRiver).Count + " tiles", 1f, 0.3f));
}