public static void InitializeMesh(ViewableRegion region, VoronoiGraph vG, Mesh mesh, Noise noise, int maxWaterLevelDisplacement)
{
List <Vector3> vertices = new List <Vector3>();
List <int> triangles = new List <int>();
float water_elevation = region.getWaterLevelElevation();
Vector3[] verticesLocal;
Vector3[] trianglesLocal = new Vector3[] { new Vector3(0, 1, 2), new Vector3(0, 1, 3) };
SiteSorterSiteNBR sorter = new SiteSorterSiteNBR();
int count = 0;
foreach (GraphEdge edge in vG.edges)
{
// locate voronoi sites for the edge
Site site1, site2;
site1 = vG.sites[sorter.searchSites(vG.sites, edge.site1)];
site2 = vG.sites[sorter.searchSites(vG.sites, edge.site2)];
// compute vertex coordinates
verticesLocal = new Vector3[] {
new Vector3((float)edge.x1, water_elevation, (float)edge.y1),
new Vector3((float)edge.x2, water_elevation, (float)edge.y2),
new Vector3((float)site1.coord.x - region.getViewableSize() / 2, water_elevation, (float)site1.coord.y - region.getViewableSize() / 2),
new Vector3((float)site2.coord.x - region.getViewableSize() / 2, water_elevation, (float)site2.coord.y - region.getViewableSize() / 2)
};
// add noisy elevation to each vertex
for (int i = 0; i < verticesLocal.Length; i++)
{
Vector3 v = verticesLocal[i];
float val = noise.getNoiseValueAt((int)v.x + region.getViewableSize() / 2, (int)v.z + region.getViewableSize() / 2, (int)(region.getViewableSize() * 1.5f));
v.y += (-0.5f + val) * maxWaterLevelDisplacement;
verticesLocal[i] = v;
}
// add triangles to the mesh
foreach (Vector3 triangle in trianglesLocal)
{
MeshGenerator.addTriangle(triangle, verticesLocal, vertices, triangles);
count++;
}
}
// set mesh
mesh.vertices = vertices.ToArray();
mesh.triangles = triangles.ToArray();
mesh.RecalculateNormals();
//Debug.Log("Initialized water mesh with " + count + " triangles.");
}
public bool regenerateVoronoi(bool drawmesh)
{
if (GameControl.gameSession == null || (region = GameControl.gameSession.mapGenerator.getRegion()) == null)
{
//Debug.Log("Cannot regenerate Voronoi for Water - gameSession is not ready.");
return(false);
}
// prepare noise
int noise_seed = (useRandomSeed) ? UnityEngine.Random.Range(int.MinValue, int.MaxValue) : this.seed;
Noise noise = new FastPerlinNoise(noiseResolution, noise_seed, noiseAmplitude, noisePersistance);
noise.setNoiseValues(NoiseMap.adjustNoise(noise.getNoiseValues(), 5));
// get region parameters
this.water_elevation = region.getWaterLevelElevation();
this.size = region.getViewableSize();
int halfSize = this.size / 2;
// generate random coordinates for polygons
generateXY(out this.X, out this.Y);
// use voronoi generator
voronoi = new Voronoi(minDist);
voronoi.generateVoronoi(X, Y, 0, size, 0, size);
VoronoiGraph vG = voronoi.getVoronoiGraph();
foreach (GraphEdge gE in vG.edges)
{
gE.x1 -= halfSize;
gE.x2 -= halfSize;
gE.y1 -= halfSize;
gE.y2 -= halfSize;
}
if (drawmesh)
{
Meshes.WaterMesh.InitializeMesh(region, voronoi.getVoronoiGraph(), mesh, noise, maxWaterLevelDisplacement);
}
return(true);
}
// initialize the region parameters
public static void InitializeWorldGenerationParams(ViewableRegion region)
{
// TODO load from XML
// world temperature parameters
worldAmbientTemperature = 60f;
worldScale = region.getViewableSize() / 50;
worldCoreTemperature = 175f;
tanFalloffTemp = 0.01f;
linFalloffTemp = 0.05f;
latitudeFactorTemp = 0.025f;
// erosion parameters
erosionWaterAmount = 1f;
erosionStrength = 1f;
erosionWaterLoss = 0.98f;
erosionIterations = 100;
earthStability = 0.25f;
erosionVelocityElevationCap = 25f;
// region features
forestryProbability = 0.1f;
forestryMaxSpread = 25f;
}